Re: MADlib Top Level Project Graduation

[Greg Chase]

Congrats MADlib team! Very proud of you!

On Mon, Jul 24, 2017 at 2:09 PM, Jarrod Vawdrey  wrote:

> Awesome!!! Congrats team.
>
> Jarrod Vawdrey
> (678) 651-0795
>
> > On Jul 24, 2017, at 3:57 PM, Joseph Hellerstein <
> hellerst...@berkeley.edu> wrote:
> >
> > Very cool!
> >
> > On Mon, Jul 24, 2017 at 2:11 PM, Anirudh Kondaveeti <
> akondave...@pivotal.io>
> > wrote:
> >
> >> Congrats team!
> >>
> >>> On Mon, Jul 24, 2017 at 11:06 AM, Ivan Novick 
> wrote:
> >>>
> >>> nice work all!
> >>>
> >>> On Mon, Jul 24, 2017 at 11:04 AM, Marshall Presser <
> mpres...@pivotal.io>
> >>> wrote:
> >>>
>  Woof, woof, woof!  Congrats to the team.
>  MEP
> 
>  On Mon, Jul 24, 2017 at 1:46 PM, FENG, Xixuan (Aaron) <
>  xixuan.f...@gmail.com> wrote:
> 
> > Dear MADlib community,
> >
> > I am pleased to report that on July 19, the ASF board established
> > Apache MADlib as a Top Level Project, which was approved by unanimous
> > vote of the directors present.
> >
> > MADlib entered incubation in the fall of 2015 and made 5 releases as
> an
> > incubating project.  Along the way, we have worked hard to ensure
> that
> >> the
> > project is being developed according to the principles of the Apache
> >> Way.
> > We will continue to do so in the future as a TLP,  to the best of our
> > ability.
> >
> > Thank you to all of you for your contributions to the project, and I
> > look forward to working with you as part of this community!
> >
> > Aaron Feng
> > Vice President, Apache MADlib
> >
> 
> 
> 
>  --
>  Marshall Presser
>  Pivotal Data Engineering
>  mpresser@pivotal .io
>  240.401.1750 <(240)%20401-1750>
> 
> 
> >>>
> >>>
> >>> --
> >>> Ivan Novick, Product Manager Pivotal Greenplum
> >>> inov...@pivotal.io --  (Mobile) 408-230-6491 <(408)%20230-6491>
> >>> https://www.youtube.com/GreenplumDatabase
> >>>
> >>>
> >>
> >>
> >> --
> >> Anirudh Kondaveeti, Ph.D. | Principal Data Scientist | Pivotal Data
> Science
> >> Team akondave...@pivotal.io | c - 650 483 3985
> >>
>

Re: [DISCUSS] Graduation

[Greg Chase]

Is that the 5th release I see that just got posted?

Ya, time for MADlib to fly the incubator!



On Thu, May 4, 2017 at 10:48 AM, Frank McQuillan 
wrote:

> Thanks Roman.
>
> I agree that this project is in the correct state to qualify as a TLP,
> and would like to help move that forward.
>
> In addition to the
> https://cwiki.apache.org/confluence/display/MADLIB/Graduation+Resolution
> that you mention, we also created a check list
> https://cwiki.apache.org/confluence/display/MADLIB/ASF+Maturity+Evaluation
> which aims to describe where the project stands according the the Apache
> project maturity model.
>
> I would encourage members of the Apache MADlib community to take a look
> at the check list and comment on any of the items there.
>
> The project mgmt part of the wiki
> https://cwiki.apache.org/confluence/display/MADLIB/Project+Management
> also gives a pretty good snapshot of the project as it stands today.
>
> Frank
>
>
> On Thu, May 4, 2017 at 10:44 AM, Rahul Iyer  wrote:
>
> > Hi Roman,
> >
> > Many thanks for your excellent mentorship!
> >
> > Your #2 and #3 proposals sound good to me and I look forward to the
> > discussion on private@.
> >
> > - Rahul
> >
> >
> > On Fri, Apr 28, 2017 at 10:47 AM, Roman Shaposhnik 
> wrote:
> > > Hi!
> > >
> > > with the fifth (v1.11) release in the final stages of being cut,
> > > I think now would be a good time to officially start our graduation
> > > discussion. With my mentor hat on, I feel that the project is
> > > mature and self-reliant enough to qualify as a TLP.
> > >
> > > Process-wise graduation consists of drafting a board resolution,
> > > getting it approved by the IPMC and finally submitting it to the ASF
> > > board's consideration. At the very minimum your resolution will
> contain:
> > > 1. A name of the project (I assume that'll be MADlib)
> > > 2. A list of proposed PMC members
> > > 3. A proposed PMC chair
> > > A good example of a resolution can be found here:
> > > https://cwiki.apache.org/confluence/display/FINERACT/
> > Graduation+Resolution
> > >
> > > In fact, Frank and I took the liberty to use that as the basis for our
> > own:
> > >  https://cwiki.apache.org/confluence/display/MADLIB/
> > Graduation+Resolution
> > > Please read it carefully and let us know what do you think.
> > >
> > > On #2 my suggestion would be to have an opt-in system. Basically
> > > we will kick off the thread off on private@madlib asking current PPMC
> > > members if they are willing to continue on the PMC.
> > >
> > > On #3 I typically recommend podlings I mentor to setup a rotating chair
> > > policy. This is, in no way, an ASF requirement so feel free to ignore
> it,
> > > but it worked well before. The chair will be expected up for rotation
> > every
> > > year. It will be more that ok for the same person to self-nominate once
> > > the year is up -- but at the same time it'll be up to the same person
> to
> > > actually kick off a thread asking if anybody else is interested in
> > serving
> > > as a chair for the next year. Of course, if there multiple candidates
> > there
> > > will have to be a vote.
> > >
> > > Speaking of self-nomination -- the same thread that we're going to kick
> > > off as part of solving for #2 will ask for folks to self-nominate as an
> > initial
> > > chair to be listed on the resolution.
> > >
> > > Unless somebody objects strongly to my #2 and #3 proposals I'm going
> > > to kick of this thread on private@.
> > >
> > > With that in mind, lets make the rest of the discussion on dev@ to be
> > about
> > > collecting the datapoints to present to IPCM as part of us asking them
> to
> > > vote YES on our graduation. Lets collect all these data points in the
> > same
> > > wiki page:
> > > https://cwiki.apache.org/confluence/display/MADLIB/
> > Graduation+Resolution
> > > Or if you feel that a discussion may be needed -- just reply to this
> > thread.
> > >
> > > Thanks,
> > > Roman.
> >
>

Re: Graph SSSP Scale Tests

[Greg Chase]

Very nice!

Do you have similar benchmarks for HAWQ and PostgreSQL?

On Wed, Apr 5, 2017 at 1:26 PM, Ivan Novick  wrote:

> looks good!
>
> On Thu, Apr 6, 2017 at 2:49 AM, Orhan Kislal  wrote:
>
> > Hello MADlib community,
> >
> >
> >
> > We have been doing some additional scale testing on SSSP introduced in
> the
> > 1.10 release
> >
> > http://madlib.incubator.apache.org/docs/latest/group__grp__sssp.html
> >
> >
> >
> > A sample of results, going up to 100M vertices and 5B edges can be found
> in
> > the following links:
> >
> >
> > https://drive.google.com/file/d/0B62dTQMossK9eml5LV9EZ09LcmM/
> > view?usp=sharing
> >
> > https://drive.google.com/file/d/0B62dTQMossK9dU1rSEs1TTBZN1U/
> > view?usp=sharing
> >
> >
> > So scaling looks pretty good.
> >
> >
> >
> > Please let me know if you have any comments.
> >
> >
> > Orhan Kislal
> >
> > ­­
> >
>
>
>
> --
> Ivan Novick
> Product Manager Pivotal Greenplum
> https://www.youtube.com/GreenplumDatabase
>

Re: Announcing MADlib v1.10 GA

[Greg Chase]

Congrats! This is an important release!

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Mar 10, 2017, at 6:06 PM, Frank McQuillan  wrote:
> 
> MADlib v1.10 is now generally available.
> 
> The vote was PASSED by Incubator PMC members:
> http://mail-archives.apache.org/mod_mbox/incubator-general/201703.mbox/%3CCAKBQfzTSxD1e53iTnNbci89HYXoyah9kg-8zLts83_8kMRtWGw%40mail.gmail.com%3E
> 
> Special thanks to mentor Roman Shaposhnik for his help in resolving some
> thorny legal issues leading up to this release.
> 
> The source and binaries are posted at:
> https://dist.apache.org/repos/dist/release/incubator/madlib/1.10.0-incubating/
> 
> Release notes:
> https://cwiki.apache.org/confluence/display/MADLIB/MADlib+1.10
> 
> User documentation:
> http://madlib.incubator.apache.org/docs/latest/
> 
> We look forward to community participation for the next release v1.11 and
> moving towards TLP graduation!
> 
> Regards,
> Frank McQuillan

Re: New tweeter for MADlib

[Greg Chase]

Hi Bob,
Any member of the MADlib PMC is able to administer Tweeting privileges if
they themselves have been setup to do so.

I have just granted you the ability to tweet from @ApacheMADlib via
Tweetdeck through your own personal Twitter account.

-Greg

On Tue, Dec 13, 2016 at 11:42 AM, Bob Glithero  wrote:

> Do we need to be granted access to the account?   I had to be invited to
> tweet for HAWQ.  Thanks.
>
>
> Bob Glithero | Product Marketing
> Pivotal, Inc.
> rglith...@pivotal.io | m: 415.341.5592
>
>
> On Tue, Dec 13, 2016 at 11:36 AM, Frank McQuillan 
> wrote:
>
> > https://twitter.com/ApacheMADlib
> >
> >
> > On Tue, Dec 13, 2016 at 4:22 AM, Luis Macedo  wrote:
> >
> > > Hey guys!
> > >
> > > What is the twitter handle for MADlib? The bet the one I found is not
> > about
> > > this MADlib!
> > >
> > > https://twitter.com/madlib
> > >
> > >
> > > Thanks!
> > >
> > >
> > > *Luis Macedo | Sr Platform Architect | **Pivotal Inc *
> > >
> > > *Mobile:* +55 11 97616-6438
> > > *Pivotal.io <http://pivotal.io>*
> > > *Take care of the customers and the rest takes care of itself*
> > >
> > > 2016-12-12 22:15 GMT-02:00 Frank McQuillan :
> > >
> > > > Thanks Bob.  Yes please, tweet away!
> > > >
> > > > Frank
> > > >
> > > > On Mon, Dec 12, 2016 at 8:56 AM, Greg Chase 
> wrote:
> > > >
> > > > > +1
> > > > >
> > > > > This email encrypted by tiny buttons & fat thumbs, beta voice
> > > > recognition,
> > > > > and autocorrect on my iPhone.
> > > > >
> > > > > > On Dec 11, 2016, at 9:16 PM, Bob Glithero 
> > > > wrote:
> > > > > >
> > > > > > Hello MADlib community,
> > > > > >
> > > > > > I'm a newish member of Pivotal responsible for product marketing
> > for
> > > > > > HDB/HAWQ, and will be spending more time on awareness for MADlib.
> > If
> > > > > > there's no objection, I'd like to add myself as a tweeter on
> behalf
> > > of
> > > > > > MADlib.
> > > > > >
> > > > > > Thanks!
> > > > > > Bob Glithero
> > > > > > Pivotal, Inc.
> > > > >
> > > >
> > >
> >
>

Re: New tweeter for MADlib

[Greg Chase]

+1

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Dec 11, 2016, at 9:16 PM, Bob Glithero  wrote:
> 
> Hello MADlib community,
> 
> I'm a newish member of Pivotal responsible for product marketing for
> HDB/HAWQ, and will be spending more time on awareness for MADlib.  If
> there's no objection, I'd like to add myself as a tweeter on behalf of
> MADlib.
> 
> Thanks!
> Bob Glithero
> Pivotal, Inc.

Re: New Apache MADlib contributor: Nandish Jayaram

[Greg Chase]

Congrats and welcome Nandish!

On Thu, Sep 15, 2016 at 5:18 PM, Frank McQuillan 
wrote:

> Dear MADlib dev community,
>
> The Project Management Committee (PMC) for Apache MADlib has asked
> Nandish Jayaram to become a committer and we are pleased to announce that
> he
> has accepted.
>
> Here are some of his contributions:
>
> - New features (Sessionization, initial stages of one-class SVM)
> - Expansion of existing modules (Path)
> - Bug fixes (path, elastic net, decision tree)
> - Infrastructure projects
>
> Being a committer enables easier contribution to the project since there is
> no need to go via the patch submission process.  This should enable better
> productivity.  Being a PMC member enables assistance with the management
> and to guide the direction of the project.
>
> Welcome Nandish!
>
> Regards,
> Frank
>

Re: New Apache MADlib contributor: Orhan Kislal

[Greg Chase]

Congrats and well deserved Orhan!

On Thu, Sep 15, 2016 at 5:13 PM, Frank McQuillan 
wrote:

> Dear MADlib dev community,
>
> The Project Management Committee (PMC) for Apache MADlib has asked
> Orhan Kislal to become a committer and we are pleased to announce that he
> has accepted.
>
> Here are some of Orhan’s recent contributions:
>
> - Release manager for 1.9alpha, 1.9 and 1.9.1
> - Worked on:
>   - New features (prediction metrics, pivoting)
>   - Expansion of existing modules (PCA)
>   - Upgrade support
>   - Release related tasks
>   - Bug fixes (kmeans, random forest, elastic net etc.)
>
> Being a committer enables easier contribution to the project since there is
> no need to go via the patch submission process.  This should enable better
> productivity.  Being a PMC member enables assistance with the management
> and to guide the direction of the project.
>
> Welcome Orhan!
>
> Regards,
> Frank
>

Re: Spatial model in MADlib (GWR)

[Greg Chase]

Hi ChenLang, 
We have a community meeting at 9AM pacific. If you are still awake please feel 
free to ask the question in the end of the meeting.

Dial in instructions are in the meeting annoucemt and I will reply here again 
with them later.  

Greg 

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Sep 13, 2016, at 6:41 AM, Wang ChenLiang  wrote:
> 
> Hi Frank,
> 
> I was being on a business trip for several months and began to work on
> MADlib again in the past few days. But I have a trouble with debugging
> MADlib with GDB. Could you kindly give me a detailed example for
> debugging MADlib with CodeBlocks or GDB?
> 
> Many Thanks !
> 
> 
>> On 03/15/2016 12:31 AM, Frank McQuillan wrote:
>> OK.  Please don't hesitate to ask if you have any questions.
>> 
>> Frank
>> 
>>> On Mon, Mar 14, 2016 at 4:17 AM, chenliang wang  wrote:
>>> 
>>> Hi, Frank
>>> 
>>> Recently,I am just looking at the detail of development guide and trying
>>> to complete the serial algorithm. And I plan to implement GWR dividing
>>> the loop into pieces of chunks executed in several nodes. However, I am
>>> not sure if there are some specials details need to be designed for
>>> distributed models in GPDB because I haven't developed model in MPP
>>> architecture. I hope this distributed manner would be implemented easily.
>>> 
>>> Best,
>>> Chenliang Wang
>>> 
 On 03/10/2016 08:33 AM, Frank McQuillan wrote:
 Hi ChenLiang Wang,
 
 I am checking to see how things are going regarding the GWR model for
 MADlib that you proposed.  Not sure which phase you are at, but a
>>> suggested
 next step might be how you plan to implement the GWR algorithm in a
 distributed manner.  That is, how will it run in parallel?
 
 (Starting as a new thread since the previous thread fragmented.)
 
 Regards,
 Frank
>> 

Re: Improving video representation on MADlib pages

[Greg Chase]

Tweaked the page to be more general for website change proposals, and to
explain what we want to do in a bit more detail.

+1 for these changes.  I think they'll look great!

Thanks for posting the images Frank!

-Greg

On Tue, Sep 6, 2016 at 9:59 PM, Frank McQuillan 
wrote:

> I posted the images here
> https://cwiki.apache.org/confluence/display/MADLIB/Misc
> for people to have a look.
>
> I think the layout looks pretty good the way you are proposing it.
>
> Frank
>
>
> On Tue, Sep 6, 2016 at 6:22 PM, Roman Shaposhnik 
> wrote:
>
> > Enjoy your admin karma, but remember -- with great power comes git blame
> > ;-)
> >
> > Thanks,
> > Roman.
> >
> > On Tue, Sep 6, 2016 at 6:20 PM, Greg Chase  wrote:
> > > gregchase
> > >
> > > On Tue, Sep 6, 2016 at 6:18 PM, Roman Shaposhnik  >
> > > wrote:
> > >
> > >> Greg, what's your wiki ID? I can give you karma.
> > >>
> > >> Thanks,
> > >> Roman.
> > >>
> > >> On Tue, Sep 6, 2016 at 6:15 PM, Greg Chase 
> wrote:
> > >> > Oops
> > >> >
> > >> > Attachments got cut off, and I don't have access to the wiki to post
> > them
> > >> > there.
> > >> >
> > >> > @Frank -> I will forward you the mockups.  Can you post them on the
> > wiki?
> > >> >
> > >> > Thanks,
> > >> >
> > >> > -Greg
> > >> >
> > >> > On Tue, Sep 6, 2016 at 6:12 PM, Gregory Chase 
> > wrote:
> > >> >
> > >> >> Dear MADlib developers,
> > >> >> Now that we have a couple of nice new videos about the origin of
> > MADlib
> > >> >> and the MADlib community, lets make the pages that host them look
> > >> better.
> > >> >>
> > >> >> Attached are a couple of mockups that remove the big video bars and
> > put
> > >> >> the video closer to main text.
> > >> >>
> > >> >> For the product page: http://madlib.incubator.
> > apache.org/product.html
> > >> >>
> > >> >> and the community page: http://madlib.incubator.
> > >> apache.org/community.html
> > >> >>
> > >> >> These are fairly simple design changes, so I'll invoke lazy
> consensus
> > >> >>
> > >> >> If there are no specific critiques, I will have this posted in a
> > couple
> > >> of
> > >> >> days.
> > >> >>
> > >> >> --
> > >> >> Greg Chase
> > >> >>
> > >> >> Global Head, Big Data Communities
> > >> >> http://www.pivotal.io/big-data
> > >> >>
> > >> >> Pivotal Software
> > >> >> http://www.pivotal.io/
> > >> >>
> > >> >> 650-215-0477
> > >> >> @GregChase
> > >> >> Blog: http://geekmarketing.biz/
> > >> >>
> > >> >>
> > >>
> >
>

Re: Improving video representation on MADlib pages

[Greg Chase]

gregchase

On Tue, Sep 6, 2016 at 6:18 PM, Roman Shaposhnik 
wrote:

> Greg, what's your wiki ID? I can give you karma.
>
> Thanks,
> Roman.
>
> On Tue, Sep 6, 2016 at 6:15 PM, Greg Chase  wrote:
> > Oops
> >
> > Attachments got cut off, and I don't have access to the wiki to post them
> > there.
> >
> > @Frank -> I will forward you the mockups.  Can you post them on the wiki?
> >
> > Thanks,
> >
> > -Greg
> >
> > On Tue, Sep 6, 2016 at 6:12 PM, Gregory Chase  wrote:
> >
> >> Dear MADlib developers,
> >> Now that we have a couple of nice new videos about the origin of MADlib
> >> and the MADlib community, lets make the pages that host them look
> better.
> >>
> >> Attached are a couple of mockups that remove the big video bars and put
> >> the video closer to main text.
> >>
> >> For the product page: http://madlib.incubator.apache.org/product.html
> >>
> >> and the community page: http://madlib.incubator.
> apache.org/community.html
> >>
> >> These are fairly simple design changes, so I'll invoke lazy consensus
> >>
> >> If there are no specific critiques, I will have this posted in a couple
> of
> >> days.
> >>
> >> --
> >> Greg Chase
> >>
> >> Global Head, Big Data Communities
> >> http://www.pivotal.io/big-data
> >>
> >> Pivotal Software
> >> http://www.pivotal.io/
> >>
> >> 650-215-0477
> >> @GregChase
> >> Blog: http://geekmarketing.biz/
> >>
> >>
>

Re: Improving video representation on MADlib pages

[Greg Chase]

Oops

Attachments got cut off, and I don't have access to the wiki to post them
there.

@Frank -> I will forward you the mockups.  Can you post them on the wiki?

Thanks,

-Greg

On Tue, Sep 6, 2016 at 6:12 PM, Gregory Chase  wrote:

> Dear MADlib developers,
> Now that we have a couple of nice new videos about the origin of MADlib
> and the MADlib community, lets make the pages that host them look better.
>
> Attached are a couple of mockups that remove the big video bars and put
> the video closer to main text.
>
> For the product page: http://madlib.incubator.apache.org/product.html
>
> and the community page: http://madlib.incubator.apache.org/community.html
>
> These are fairly simple design changes, so I'll invoke lazy consensus
>
> If there are no specific critiques, I will have this posted in a couple of
> days.
>
> --
> Greg Chase
>
> Global Head, Big Data Communities
> http://www.pivotal.io/big-data
>
> Pivotal Software
> http://www.pivotal.io/
>
> 650-215-0477
> @GregChase
> Blog: http://geekmarketing.biz/
>
>

Re: [VIDEO REPLAY] MADlib Call - Ask Us Anything (About MADlib)

[Greg Chase]

Hi Rangan,
Its nice to hear from you.

I'll let other folks of the community speak about language bindings. But,
and important thing to understand about MADlib in its current capabilities
is that it is developed to work in-database in a variety of
PostgreSQL-derived database platforms. To date, we can work with
PostgreSQL, Greenplum, and Apache HAWQ.

>From an application development point of view, that shouldn't matter as
much.  There are ways to access MADlib via SQL, R, and Python to date that
I know of.

-Greg

On Fri, Jul 29, 2016 at 10:29 PM, Priya Ranjan  wrote:

> Hello Greg
>
> Unfortunately I wasn't able to join in but had one question whether you
> guys are looking at Rustlang as it guarantees memory safety with high
> performance for building core MADlib libraries or embedding it in your
> existing codebase.
>
> Wanted to know your thoughts.
>
> Regards
> Ranjan
>
> On 28 Jul 2016 22:29, "Frank McQuillan"  wrote:
>
> > Thanks for posting, Greg.  It was an interesting discussion.
> >
> > Frank
> >
> > On Wed, Jul 27, 2016 at 6:50 PM, Gregory Chase 
> wrote:
> >
> > > Today's open office hours call turned into a delightful discussion
> with a
> > > new user to MADlib.  Other new users to MADlib may appreciate his
> > > questions.
> > >
> > > Here's the full replay:
> > > https://youtu.be/EPQk5Uzs8OY?t=35s
> > >
> > > Here's the topics we talked about:
> > >
> > > 0:35 Our new users’ use case <https://youtu.be/EPQk5Uzs8OY?t=35s>
> > >
> > > 1:45 Why does the system behave differently with MADlib vs. what I see
> > with
> > > R? <https://youtu.be/EPQk5Uzs8OY?t=1m45s>
> > >
> > > 3:23 Tableau interactive queries vs. MADlib batch-oriented processing
> > > <https://youtu.be/EPQk5Uzs8OY?t=3m23s>
> > >
> > > 7:27 What first algorithms have you run in MADlib?
> > > <https://youtu.be/EPQk5Uzs8OY?t=7m27s>
> > >
> > > 8:13 Balancing MADlib query processing with general database access
> > demands
> > > <https://youtu.be/EPQk5Uzs8OY?t=8m13s>
> > >
> > > 10:46 MADlib support for decision trees
> > > <https://youtu.be/EPQk5Uzs8OY?t=10m46s>
> > >
> > > 12:14 What’s the best way to get more experience using MADlib?
> > > <https://youtu.be/EPQk5Uzs8OY?t=12m14s>
> > >
> > > 15:30 SQL vs. R for data science <
> https://youtu.be/EPQk5Uzs8OY?t=15m30s>
> > >
> > > 16:54 What about Python? <https://youtu.be/EPQk5Uzs8OY?t=16m54s>
> > >
> > > 19:03 Brazilian tourism industry advertisement
> > > <https://youtu.be/EPQk5Uzs8OY?t=19m03s>
> > >
> > > On Wed, Jul 27, 2016 at 8:02 AM, Greg Chase 
> wrote:
> > >
> > > > Greetings MADlib community,
> > > > This is a reminder that our next community virtual meeting starts in
> > > about
> > > > an hour.
> > > >
> > > > Topic: "Ask Us Anything (About MADlib)".  Bring your questions.
> > > >
> > > > You can join live here <
> > > https://pivotalcommunity.adobeconnect.com/madlib/>
> > > >
> > > > -Greg
> > > >
> > > > On Wed, Jul 20, 2016 at 11:18 AM, Gregory Chase 
> > > wrote:
> > > >
> > > >> Dear MADlib community,
> > > >> We're holding another Apache MADlib (incubating) community call next
> > > week,
> > > >> Wednesday, July 27, at 9AM.
> > > >>
> > > >> Topic:  Ask Us Anything (about MADlib)
> > > >>
> > > >> Agenda: Whatever we get asked
> > > >>
> > > >> Join us for an open Q&A about using MADlib. We'll have the best
> expert
> > > >> contributors and data science users of Apache MADlib on hand to
> answer
> > > >> whatever questions you might have.
> > > >>
> > > >> You can join live here <
> > > https://pivotalcommunity.adobeconnect.com/madlib/
> > > >> >,
> > > >> and add a reminder appointment to your calendar here
> > > >> <
> > > >>
> > >
> >
> https://calendar.google.com/calendar/event?eid=Zm8xMjUzOTEyajk3ZDNlZXQ0ZGpnOHBtZnMgcGl2b3RhbC5pb191OGtndnVhaGprYm9oMWduZmh2NXRzMnY5Y0Bn&ctz=America/Los_Angeles
> > > >> >
> > > >> .
> > > >>
> > > >> See you next Wednesday, July 27 at 9AM Pacific!
> > > >>
> > > >> --
> > > >> Greg Chase
> > > >>
> > > >> Global Head, Big Data Communities
> > > >> http://www.pivotal.io/big-data
> > > >>
> > > >> Pivotal Software
> > > >> http://www.pivotal.io/
> > > >>
> > > >> 650-215-0477
> > > >> @GregChase
> > > >> Blog: http://geekmarketing.biz/
> > > >>
> > > >
> > > >
> > >
> > >
> > > --
> > > Greg Chase
> > >
> > > Global Head, Big Data Communities
> > > http://www.pivotal.io/big-data
> > >
> > > Pivotal Software
> > > http://www.pivotal.io/
> > >
> > > 650-215-0477
> > > @GregChase
> > > Blog: http://geekmarketing.biz/
> > >
> >
>

Re: [VIRTUAL] MADlib Call TODAY 7/27 9AM PT: Ask Us Anything (About MADlib)

[Greg Chase]

Greetings MADlib community,
This is a reminder that our next community virtual meeting starts in about
an hour.

Topic: "Ask Us Anything (About MADlib)".  Bring your questions.

You can join live here <https://pivotalcommunity.adobeconnect.com/madlib/>

-Greg

On Wed, Jul 20, 2016 at 11:18 AM, Gregory Chase  wrote:

> Dear MADlib community,
> We're holding another Apache MADlib (incubating) community call next week,
> Wednesday, July 27, at 9AM.
>
> Topic:  Ask Us Anything (about MADlib)
>
> Agenda: Whatever we get asked
>
> Join us for an open Q&A about using MADlib. We'll have the best expert
> contributors and data science users of Apache MADlib on hand to answer
> whatever questions you might have.
>
> You can join live here <https://pivotalcommunity.adobeconnect.com/madlib/
> >,
> and add a reminder appointment to your calendar here
> <
> https://calendar.google.com/calendar/event?eid=Zm8xMjUzOTEyajk3ZDNlZXQ0ZGpnOHBtZnMgcGl2b3RhbC5pb191OGtndnVhaGprYm9oMWduZmh2NXRzMnY5Y0Bn&ctz=America/Los_Angeles
> >
> .
>
> See you next Wednesday, July 27 at 9AM Pacific!
>
> --
> Greg Chase
>
> Global Head, Big Data Communities
> http://www.pivotal.io/big-data
>
> Pivotal Software
> http://www.pivotal.io/
>
> 650-215-0477
> @GregChase
> Blog: http://geekmarketing.biz/
>

Re: MADlib 1.9.1 release manager

[Greg Chase]

+1 for Orhan!

On Wed, Jul 13, 2016 at 3:06 PM, Frank McQuillan 
wrote:

> Thank you, Orhan.
>
> On Wed, Jul 13, 2016 at 1:36 PM, Orhan Kislal  wrote:
>
> > I volunteer for the release manager duties. I will still need some help
> > from a committer to complete the procedures but I believe I can take care
> > of the rest.
> >
> > Thanks
> >
> > Orhan
> >
> > On Mon, Jul 11, 2016 at 4:55 PM, Frank McQuillan 
> > wrote:
> >
> > > As we start moving towards the 1.9.1 release, I am wondering if someone
> > > would like to offer be release manager this time around.
> > >
> > > A general description of the process is at
> > > http://incubator.apache.org/guides/releasemanagement.html
> > >
> > > I will of course help walk thru the steps with anyone who would like to
> > > participate.
> > >
> > > Frank
> > >
> >
>

Re: [VIDEO REPLAY] Meetup for Data Scientists from Tuesday 6/21: Zeppelin meets MADlib & HAWQ

[Greg Chase]

Greetings Zeppelin, MADlib, and HAWQ Communities,

We have posted a recording of the Apache Zeppelin meets Apache MADlib and
Apache HAWQ Meeting. You can find it here
<https://www.youtube.com/watch?v=p8V10IukBes&list=PL62pIycqXx-Qf6EXu5FDxUgXW23BHOtcQ&index=6>
.

The agenda:

What is Apache Zeppelin? (00:23 - 13:49)

What is Apache MADlib & Apache HAWQ? (13:49 - 17:50)

Demo of Zeppelin & MADlib (17:50 - 31:05)

Q&A (31:05 - 38:07)



On Mon, Jun 20, 2016 at 9:52 AM, Greg Chase  wrote:

> This is a reminder about the virtual meeting tomorrow at 9AM Pacific
> discussing running Apache Zeppelin with Apache MADlib and Apache HAWQ.
> Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
> https://pivotalcommunity.adobeconnect.com/madlib/
>
> On Wed, Jun 15, 2016 at 12:20 PM, Greg Chase  wrote:
>
>> Dear members of the Apache Zeppelin, Apache MADlib, and Apache HAWQ
>> communities,
>>
>> We are hosting a cross-community virtual meeting for data science users
>> this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary, just
>> join the event here <https://pivotalcommunity.adobeconnect.com/madlib/>.
>> This meeting will also be recorded and posted.
>>
>> We'll be introducing users of Zeppelin to the capabilities of the MADlib
>> SQL machine learning library.  We'll be showing users of MADlib how they
>> can visualize their investigations and publish their work using the
>> Zeppelin notebook.
>>
>> Agenda:
>> * What is Apache Zeppelin?
>> * What is Apache HAWQ (incubating) and Apache MADlib (incubating)? - 5
>> min/Frank
>> * Demo of Zeppelin and MADlib for data science running on HAWQ
>>
>> More about the technologies we'll be discussing:
>>
>> *Apache Zeppelin* <https://zeppelin.apache.org/> is a web-based notebook
>> that enables interactive data analytics. It lets you make beautiful
>> data-driven, interactive and collaborative documents with SQL, Scala and
>> more.  Apache Zeppelin has plugins to many database engines including
>> PostgreSQL, and massively parallel processing engines based off PostgreSQL
>> including Apache HAWQ and the Greenplum Database.
>>
>> *Apache MADlib (incubating) <http://madlib.incubator.apache.org/>* is a
>> big data machine learning library in SQL for data scientists. It operates
>> on data locally in PostgreSQL-compatible database engines. MADlib is
>> optimized for parallel processing platforms such as Apache HAWQ and the
>> Greenplum Database.
>>
>> *Apache HAWQ (incubating) <http://hawq.incubator.apache.org/>* is an
>> Apache Hadoop-Native SQL query engine that operates directly on data in a
>> Hadoop cluster. It provides the highest degree of SQL completeness of any
>> SQL on Hadoop engine. It scales elastically, is parallel processing, and
>> integrates with MADlib and Zeppelin.
>>
>> Speakers will be:
>>
>> *Moon soo Lee -  CTO, NFLabs*
>> LeeMoonSoo is a creator for Apache Zeppelin (incubating) and a
>> Co-Founder, CTO at NFLabs.
>>
>> *Frank McQuillan - Director of Product Management, Pivotal Software*
>> Frank McQuillan focuses on analytics and machine learning for large data
>> sets.
>>
>> *Rahul Iyer - R&D Manager, Pivotal Software*
>> Rahul Iyer leads the development team at Pivotal Software that
>> contributes to the Apache MADlib project.
>>
>> See you this next Tuesday, June 21, 9AM Pacific.  No sign up is
>> necessary, just join the event here
>> <https://pivotalcommunity.adobeconnect.com/madlib/>.
>>
>>
>>
>

Re: [VIRTUAL] TODAY - Meetup for Data Scientists Tuesday 6/21 - 9AM Pacific : Zeppelin meets MADlib & HAWQ

[Greg Chase]

The Zeppelin meeting with MADlib starts at 9AM Pacific today. Join us
at: Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
https://pivotalcommunity.adobeconnect.com/madlib/

On Tue, Jun 21, 2016 at 8:06 AM, Greg Chase  wrote:

> The Zeppelin meeting with MADlib starts at 9AM Pacific today. Join us
> at: Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
> https://pivotalcommunity.adobeconnect.com/madlib/
>
> On Mon, Jun 20, 2016 at 9:52 AM, Greg Chase  wrote:
>
>> This is a reminder about the virtual meeting tomorrow at 9AM Pacific
>> discussing running Apache Zeppelin with Apache MADlib and Apache HAWQ.
>> Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
>> https://pivotalcommunity.adobeconnect.com/madlib/
>>
>> On Wed, Jun 15, 2016 at 12:20 PM, Greg Chase 
>> wrote:
>>
>>> Dear members of the Apache Zeppelin, Apache MADlib, and Apache HAWQ
>>> communities,
>>>
>>> We are hosting a cross-community virtual meeting for data science users
>>> this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary, just
>>> join the event here <https://pivotalcommunity.adobeconnect.com/madlib/>.
>>> This meeting will also be recorded and posted.
>>>
>>> We'll be introducing users of Zeppelin to the capabilities of the MADlib
>>> SQL machine learning library.  We'll be showing users of MADlib how they
>>> can visualize their investigations and publish their work using the
>>> Zeppelin notebook.
>>>
>>> Agenda:
>>> * What is Apache Zeppelin?
>>> * What is Apache HAWQ (incubating) and Apache MADlib (incubating)? - 5
>>> min/Frank
>>> * Demo of Zeppelin and MADlib for data science running on HAWQ
>>>
>>> More about the technologies we'll be discussing:
>>>
>>> *Apache Zeppelin* <https://zeppelin.apache.org/> is a web-based
>>> notebook that enables interactive data analytics. It lets you make
>>> beautiful data-driven, interactive and collaborative documents with SQL,
>>> Scala and more.  Apache Zeppelin has plugins to many database engines
>>> including PostgreSQL, and massively parallel processing engines based off
>>> PostgreSQL including Apache HAWQ and the Greenplum Database.
>>>
>>> *Apache MADlib (incubating) <http://madlib.incubator.apache.org/>* is a
>>> big data machine learning library in SQL for data scientists. It operates
>>> on data locally in PostgreSQL-compatible database engines. MADlib is
>>> optimized for parallel processing platforms such as Apache HAWQ and the
>>> Greenplum Database.
>>>
>>> *Apache HAWQ (incubating) <http://hawq.incubator.apache.org/>* is an
>>> Apache Hadoop-Native SQL query engine that operates directly on data in a
>>> Hadoop cluster. It provides the highest degree of SQL completeness of any
>>> SQL on Hadoop engine. It scales elastically, is parallel processing, and
>>> integrates with MADlib and Zeppelin.
>>>
>>> Speakers will be:
>>>
>>> *Moon soo Lee -  CTO, NFLabs*
>>> LeeMoonSoo is a creator for Apache Zeppelin (incubating) and a
>>> Co-Founder, CTO at NFLabs.
>>>
>>> *Frank McQuillan - Director of Product Management, Pivotal Software*
>>> Frank McQuillan focuses on analytics and machine learning for large data
>>> sets.
>>>
>>> *Rahul Iyer - R&D Manager, Pivotal Software*
>>> Rahul Iyer leads the development team at Pivotal Software that
>>> contributes to the Apache MADlib project.
>>>
>>> See you this next Tuesday, June 21, 9AM Pacific.  No sign up is
>>> necessary, just join the event here
>>> <https://pivotalcommunity.adobeconnect.com/madlib/>.
>>>
>>>
>>>
>>
>

Re: [VIRTUAL] TODAY - Meetup for Data Scientists Tuesday 6/21 - 9AM Pacific : Zeppelin meets MADlib & HAWQ

[Greg Chase]

The Zeppelin meeting with MADlib starts at 9AM Pacific today. Join us
at: Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
https://pivotalcommunity.adobeconnect.com/madlib/

On Mon, Jun 20, 2016 at 9:52 AM, Greg Chase  wrote:

> This is a reminder about the virtual meeting tomorrow at 9AM Pacific
> discussing running Apache Zeppelin with Apache MADlib and Apache HAWQ.
> Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
> https://pivotalcommunity.adobeconnect.com/madlib/
>
> On Wed, Jun 15, 2016 at 12:20 PM, Greg Chase  wrote:
>
>> Dear members of the Apache Zeppelin, Apache MADlib, and Apache HAWQ
>> communities,
>>
>> We are hosting a cross-community virtual meeting for data science users
>> this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary, just
>> join the event here <https://pivotalcommunity.adobeconnect.com/madlib/>.
>> This meeting will also be recorded and posted.
>>
>> We'll be introducing users of Zeppelin to the capabilities of the MADlib
>> SQL machine learning library.  We'll be showing users of MADlib how they
>> can visualize their investigations and publish their work using the
>> Zeppelin notebook.
>>
>> Agenda:
>> * What is Apache Zeppelin?
>> * What is Apache HAWQ (incubating) and Apache MADlib (incubating)? - 5
>> min/Frank
>> * Demo of Zeppelin and MADlib for data science running on HAWQ
>>
>> More about the technologies we'll be discussing:
>>
>> *Apache Zeppelin* <https://zeppelin.apache.org/> is a web-based notebook
>> that enables interactive data analytics. It lets you make beautiful
>> data-driven, interactive and collaborative documents with SQL, Scala and
>> more.  Apache Zeppelin has plugins to many database engines including
>> PostgreSQL, and massively parallel processing engines based off PostgreSQL
>> including Apache HAWQ and the Greenplum Database.
>>
>> *Apache MADlib (incubating) <http://madlib.incubator.apache.org/>* is a
>> big data machine learning library in SQL for data scientists. It operates
>> on data locally in PostgreSQL-compatible database engines. MADlib is
>> optimized for parallel processing platforms such as Apache HAWQ and the
>> Greenplum Database.
>>
>> *Apache HAWQ (incubating) <http://hawq.incubator.apache.org/>* is an
>> Apache Hadoop-Native SQL query engine that operates directly on data in a
>> Hadoop cluster. It provides the highest degree of SQL completeness of any
>> SQL on Hadoop engine. It scales elastically, is parallel processing, and
>> integrates with MADlib and Zeppelin.
>>
>> Speakers will be:
>>
>> *Moon soo Lee -  CTO, NFLabs*
>> LeeMoonSoo is a creator for Apache Zeppelin (incubating) and a
>> Co-Founder, CTO at NFLabs.
>>
>> *Frank McQuillan - Director of Product Management, Pivotal Software*
>> Frank McQuillan focuses on analytics and machine learning for large data
>> sets.
>>
>> *Rahul Iyer - R&D Manager, Pivotal Software*
>> Rahul Iyer leads the development team at Pivotal Software that
>> contributes to the Apache MADlib project.
>>
>> See you this next Tuesday, June 21, 9AM Pacific.  No sign up is
>> necessary, just join the event here
>> <https://pivotalcommunity.adobeconnect.com/madlib/>.
>>
>>
>>
>

Re: [VIRTUAL] TOMORROW - Meetup for Data Scientists Tuesday 6/21 - 9AM Pacific : Zeppelin meets MADlib & HAWQ

[Greg Chase]

This is a reminder about the virtual meeting tomorrow at 9AM Pacific
discussing running Apache Zeppelin with Apache MADlib and Apache HAWQ.
Join at this URL: <https://pivotalcommunity.adobeconnect.com/madlib/>
https://pivotalcommunity.adobeconnect.com/madlib/

On Wed, Jun 15, 2016 at 12:20 PM, Greg Chase  wrote:

> Dear members of the Apache Zeppelin, Apache MADlib, and Apache HAWQ
> communities,
>
> We are hosting a cross-community virtual meeting for data science users
> this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary, just
> join the event here <https://pivotalcommunity.adobeconnect.com/madlib/>.
> This meeting will also be recorded and posted.
>
> We'll be introducing users of Zeppelin to the capabilities of the MADlib
> SQL machine learning library.  We'll be showing users of MADlib how they
> can visualize their investigations and publish their work using the
> Zeppelin notebook.
>
> Agenda:
> * What is Apache Zeppelin?
> * What is Apache HAWQ (incubating) and Apache MADlib (incubating)? - 5
> min/Frank
> * Demo of Zeppelin and MADlib for data science running on HAWQ
>
> More about the technologies we'll be discussing:
>
> *Apache Zeppelin* <https://zeppelin.apache.org/> is a web-based notebook
> that enables interactive data analytics. It lets you make beautiful
> data-driven, interactive and collaborative documents with SQL, Scala and
> more.  Apache Zeppelin has plugins to many database engines including
> PostgreSQL, and massively parallel processing engines based off PostgreSQL
> including Apache HAWQ and the Greenplum Database.
>
> *Apache MADlib (incubating) <http://madlib.incubator.apache.org/>* is a
> big data machine learning library in SQL for data scientists. It operates
> on data locally in PostgreSQL-compatible database engines. MADlib is
> optimized for parallel processing platforms such as Apache HAWQ and the
> Greenplum Database.
>
> *Apache HAWQ (incubating) <http://hawq.incubator.apache.org/>* is an
> Apache Hadoop-Native SQL query engine that operates directly on data in a
> Hadoop cluster. It provides the highest degree of SQL completeness of any
> SQL on Hadoop engine. It scales elastically, is parallel processing, and
> integrates with MADlib and Zeppelin.
>
> Speakers will be:
>
> *Moon soo Lee -  CTO, NFLabs*
> LeeMoonSoo is a creator for Apache Zeppelin (incubating) and a Co-Founder,
> CTO at NFLabs.
>
> *Frank McQuillan - Director of Product Management, Pivotal Software*
> Frank McQuillan focuses on analytics and machine learning for large data
> sets.
>
> *Rahul Iyer - R&D Manager, Pivotal Software*
> Rahul Iyer leads the development team at Pivotal Software that contributes
> to the Apache MADlib project.
>
> See you this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary,
> just join the event here
> <https://pivotalcommunity.adobeconnect.com/madlib/>.
>
>
>

[VIRTUAL] Meetup for Data Scientists Tuesday 6/21 - 9AM Pacific : Zeppelin meets MADlib & HAWQ

[Greg Chase]

Dear members of the Apache Zeppelin, Apache MADlib, and Apache HAWQ
communities,

We are hosting a cross-community virtual meeting for data science users
this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary, just
join the event here .
This meeting will also be recorded and posted.

We'll be introducing users of Zeppelin to the capabilities of the MADlib
SQL machine learning library.  We'll be showing users of MADlib how they
can visualize their investigations and publish their work using the
Zeppelin notebook.

Agenda:
* What is Apache Zeppelin?
* What is Apache HAWQ (incubating) and Apache MADlib (incubating)? - 5
min/Frank
* Demo of Zeppelin and MADlib for data science running on HAWQ

More about the technologies we'll be discussing:

*Apache Zeppelin*  is a web-based notebook
that enables interactive data analytics. It lets you make beautiful
data-driven, interactive and collaborative documents with SQL, Scala and
more.  Apache Zeppelin has plugins to many database engines including
PostgreSQL, and massively parallel processing engines based off PostgreSQL
including Apache HAWQ and the Greenplum Database.

*Apache MADlib (incubating) * is a big
data machine learning library in SQL for data scientists. It operates on
data locally in PostgreSQL-compatible database engines. MADlib is optimized
for parallel processing platforms such as Apache HAWQ and the Greenplum
Database.

*Apache HAWQ (incubating) * is an Apache
Hadoop-Native SQL query engine that operates directly on data in a Hadoop
cluster. It provides the highest degree of SQL completeness of any SQL on
Hadoop engine. It scales elastically, is parallel processing, and
integrates with MADlib and Zeppelin.

Speakers will be:

*Moon soo Lee -  CTO, NFLabs*
LeeMoonSoo is a creator for Apache Zeppelin (incubating) and a Co-Founder,
CTO at NFLabs.

*Frank McQuillan - Director of Product Management, Pivotal Software*
Frank McQuillan focuses on analytics and machine learning for large data
sets.

*Rahul Iyer - R&D Manager, Pivotal Software*
Rahul Iyer leads the development team at Pivotal Software that contributes
to the Apache MADlib project.

See you this next Tuesday, June 21, 9AM Pacific.  No sign up is necessary,
just join the event here
.

Re: Subject: [RESULT][VOTE] MADlib v1.9alpha-rc2

[Greg Chase]

Congrats!

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Mar 11, 2016, at 5:23 PM, Frank McQuillan  wrote:
> 
> The vote has PASSED with 3 +1 binding votes from the Incubator PMC members,
> and no 0 or -1 votes:
> 
> +1 Justin Mclean
> +1 Roman Shaposhnik
> +1 Konstantin Boudnik
> 
> Thread:
> http://mail-archives.apache.org/mod_mbox/incubator-general/201603.mbox/%3CCAKBQfzQh%3DJ3DrFSgFEY8teRDpEf5Yz3r7eBffTZVVN_9evpBJg%40mail.gmail.com%3E
> 
> On behalf of the MADlib community, thank you to all who reviewed and voted
> on this release candidate.
> 
> We will proceed with promoting this release candidate.
> 
> Regards,
> Frank McQuillan

Re: [VOTE] MADlib v1.9alpha-rc1

[Greg Chase]

Sorry to be slow to respond to this.

Big +1

Great idea working through the IP clearance as a first release, and then
moving on to new functionality!

-Greg

On Fri, Feb 19, 2016 at 6:21 PM, Frank McQuillan 
wrote:

> Hello MADlib community,
>
> We have created a MADlib 1.9 alpha release, with the artifacts below up for
> a vote.
>
> This is the 1st release for Apache MADlib (incubating).
>
> First of all, a big thanks to Orhan Kislal for being the release manager
> for this release.
>
> There are two main goals of this release:
> * Clear all potential IP issues in the code base and make it legally ready
> to be adopted by the community.
> * Share the new features that have been developed so far, in order to give
> the community a good sense of the upcoming 1.9 release.
>
> For more information including release notes, please see:
> https://cwiki.apache.org/confluence/display/MADLIB/MADlib+1.9+alpha
>
> This is a source code tarball only release.
>
> *** Please download, review and vote by Wed Feb 24, 2016 @ 6pm PST ***
>
> We're voting on the source (tag):
> rc/v1.9alpha-rc1
>
> Source Files:
>
> https://dist.apache.org/repos/dist/dev/incubator/madlib/1.9alpha-incubating-rc1/
>
> Commit to be voted on:
>
> https://git-wip-us.apache.org/repos/asf?p=incubator-madlib.git;a=commit;h=581d07b03ba6c7f81fd791548f1b0f7c4909c710
>
> KEYS file containing PGP Keys we use to sign the release:
> https://dist.apache.org/repos/dist/dev/incubator/madlib/KEYS
>
> To help in tallying the vote, PMC members please be sure to indicate
> "(binding)" with your vote.
>
> [ ] +1  approve
> [ ] +0  no opinion
> [ ] -1  disapprove (and reason why)
>
>
> Thank you,
> Frank McQuillan
>

Re: Hello World Example Errors

[Greg Chase]

Babak - do you mind filing a Jira at
https://issues.apache.org/jira/browse/MADLIB/?selectedTab=com.atlassian.jira.jira-projects-plugin:summary-panel

Might as well score yourself some Karma with the project :)

-Greg

On Fri, Feb 19, 2016 at 11:40 AM, Orhan Kislal  wrote:

> Hello Babak,
>
> Thanks for pointing out these errors. I remember making changes to the
> hello world examples when I first started as well. I suggest making a pull
> request with your updated files (as you noted) so that the next developer
> does not get confused with the same bugs. Here is the website for
> contribution guidelines:
> https://cwiki.apache.org/confluence/display/MADLIB/Contribution+Guidelines
> Since you are interested in contributing to MADlib, I would suggest
> checking the following link as well for contribution ideas.
> https://cwiki.apache.org/confluence/display/MADLIB/Ideas+for+Contribution
>
> Best Regards,
>
> Orhan Kislal
>
>
> On Thu, Feb 18, 2016 at 6:34 PM, Babak Alipour 
> wrote:
>
> > Greetings everyone,
> >
> > I am Babak Alipour, a student at University of Florida. I have been
> trying
> > to use MADlib and I hope to contribute to the community later on.
> >
> > While trying to go through the quick start guide for developers
> (available
> > here :
> >
> >
> https://cwiki.apache.org/confluence/display/MADLIB/Quick+Start+Guide+for+Developers
> > ),
> > I realized that in avg_var.cpp there are some lines that use
> 'this.member'.
> > I think 'this' is a pointer and it should be used with '->'.
> > So I tried to build MADlib from source with these files added, and it
> > doesn't.
> > It produces multiple compile-time errors:
> > E.g. ' error: request for member ‘avg’ in ‘this’, which is of pointer
> type
> > ...'
> >
> > Replacing every 'this.'  with 'this->' takes care of those errors but
> there
> > are still a few more errors in the given example.
> >
> > Line 53:
> > double a = static_cast(state.numRows) / normalizer;
> > Produces an error, since 'state' is not defined in this scope. Since this
> > function is overloading '+=', I think it's safe to say this was supposed
> to
> > be the state of 'this', so I replaced it with 'this->' and that error
> went
> > away.
> >
> > Lines 44 & 45:
> > template 
> > AvgVarTransitionState &operator+=(const double x){
> >
> > This was also producing compile errors. (failed to deduce OtherHandle
> > template type) This takes a double and adds it to the state, so I don't
> see
> > any uses for 'OtherHandle' in this context and I commented line 44.
> >
> > All said and done, MADlib now compiles, installs and works just fine.
> >
> > I was wondering if anyone else encountered these issues while going
> through
> > the hello world example.
> >
> > I could fork the project, fix the example and submit a pull-request if
> you
> > think that's the way to go.
> >
> >
> > Best regards,
> > *Babak Alipour ,*
> > *University of Florida*
> >
>

Re: [VIRTUAL] MADlib Meeting on Feb 17th

[Greg Chase]

Just a reminder that this call starts in 5 minutes.

See you soon at: https://pivotalcommunity.adobeconnect.com/madlib/




On Mon, Feb 8, 2016 at 7:23 PM, Karen Vuong  wrote:

> Hi all,
>
> It's time for the next MADlib virtual meeting on February 17th!
>
> Each meeting starts with a 20-minute technology discussion topic, followed
> by a contributor & committer discussion of open JIRA issues, release
> coordination, and open Q&A.
>
> 20-minute Tech Talk: Overview of Geographically Weighted Regression (GWR)
> Analysis of Spatial Data
>
> Chenliang Wang will discuss:
>
> - An overview of Geographically Weighted Regression (GWR) analysis of
> spatial data
> - Motivation about spatial statistics and GWR with MADlib and PostGIS
> - Technical background for GWR
> - Discussion about interface to implement
>
> About Chenliang Wang
>
> I am currently a data scientist at a real estate research company in China.
> My work is centered around statistical approaches and spatial database for
> hedonic regressions. Broadly, my research focuses on developing and
> integrating geospatial methods to advance real estate analysts. Before
> taking this position, I was a Ph.D student in GIS from University of
> Chinese Academy of Sciences, Beijing, China.
>
> We look forward to having you join us.
>
> Please join us on February 17th, 2016 at:
> https://pivotalcommunity.adobeconnect.com/madlib/
>
> 2/17 Beijing, China 9:00AM CST UTC+08:00
> 2/16 San Francisco, CA 5:00 PM PST UTC-8 hours
> 2/16 New York, NY 8:00 PM EST UTC-5 hours
>
> Thanks,
>
> Karen
>
> Adobe Connect tips: For issues with Chrome.  A little icon appears in the
> address bar.  It's EASY to miss. You click it and it allows Adobe to use
> the mic, even if you select 'allow' in the popup, it doesn't work until you
> change it in address bar too.
>
> Also, preload as much content as is possible to help bandwidth issues.
> 
> If you have never attended an Adobe Connect meeting before:
>
> Test your connection:
>
> https://pivotalcommunity.adobeconnect.com/common/help/en/support/meeting_test.htm
>
> Get a quick overview: http://www.adobe.com/products/adobeconnect.html
>

Re: How to contribute a spatial module to MADlib manipulating objects from PostGIS

[Greg Chase]

The video should be available for posting to Youtube soon.

On Mon, Jan 18, 2016 at 10:37 PM, Kuien Liu  wrote:

> Hi Greg,
>
> Is the video replay available for guys outside Pivotal network to watch?
> I made a call with Chenliang Wang in 7:15pm~8:13pm yesterday evening, he
> explained his case in evaluating the property prices, he is thinking to
> implement this function (GWR) inner databases. I explain the usage of
> Madlib and how to enable PostGIS in GPDB. I think Gautum's presentation
> on BayesianAnalysis is a good tutorial for him to kick-off his plan.
>
> Cheers,
> Kuien Liu
>
> On Fri, Jan 15, 2016 at 10:53 AM, Greg Chase  wrote:
>
>> We always share the presentation and post the video replay as well.
>>
>> You can also drink lots of coffee, and join us if you are crazy enough.
>>
>> We like crazy people.
>>
>> This email encrypted by tiny buttons & fat thumbs, beta voice
>> recognition, and autocorrect on my iPhone.
>>
>> On Jan 14, 2016, at 6:35 PM, Kuien Liu  wrote:
>>
>> Yes, 2AM on Saturday... May you please share Gautam's representation
>> video after the call?
>>
>> Cheers,
>> Kuien Liu
>>
>> On Wed, Jan 13, 2016 at 6:36 PM, Greg Chase  wrote:
>>
>>> As I said, our next call is not China-friendly:
>>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3CCAMg1VtnKB-WoyVqCstfMNCcJVOn2HKQQ6wNfqdovhgnB7zd5cw%40mail.gmail.com%3E
>>>
>>> This is this Friday, 10AM Pacifc Standard Time which is 2AM Saturday
>>> Beijing time.
>>>
>>> We will arrange a next call in a couple weeks at an Asia friendly time
>>> to support contributors in Asia.
>>>
>>> However, if you make the next call, we will make time for you to talk :)
>>>
>>> Regards,
>>>
>>> -Greg
>>>
>>> On Wed, Jan 13, 2016 at 2:18 AM, Kuien Liu  wrote:
>>>
>>>> Great, I would like to join it, please send me an invitation if
>>>> possible.
>>>>
>>>> Cheers,
>>>> Kuien Liu
>>>>
>>>> On Wed, Jan 13, 2016 at 6:10 PM, Greg Chase  wrote:
>>>>
>>>>> Perhaps ChenLiang would like to join a call with the MADlib community
>>>>> and discuss his contribution?
>>>>>
>>>>> We have a call this Friday 10AM PST which is not a friendly time for
>>>>> China, but we can schedule a next call at a friendlier time.
>>>>>
>>>>> This email encrypted by tiny buttons & fat thumbs, beta voice
>>>>> recognition, and autocorrect on my iPhone.
>>>>>
>>>>> > On Jan 13, 2016, at 1:53 AM, Ivan Novick  wrote:
>>>>> >
>>>>> > Cool!
>>>>> >
>>>>> >> On Wed, Jan 13, 2016 at 5:52 PM, Kuien Liu  wrote:
>>>>> >>
>>>>> >> Got it, I think I can have a (f2f) talk with Chenliang Wang, as he
>>>>> was
>>>>> >> graduated from an institute of CAS which is not far from our Beijing
>>>>> >> office, and I am familiar with his supervisor and lab director. So
>>>>> I think
>>>>> >> it is highly possible to find him directly in Beijing.
>>>>> >>
>>>>> >> Cheers,
>>>>> >> Kuien Liu
>>>>> >>
>>>>> >>> On Wed, Jan 13, 2016 at 3:05 PM, Ivan Novick 
>>>>> wrote:
>>>>> >>>
>>>>> >>> Hello ChenLiang,
>>>>> >>>
>>>>> >>> I have read your description of the interface and to my
>>>>> understanding
>>>>> >>> this is a supervised machine learning algorithm that supports
>>>>> geometry
>>>>> >>> data.  Am I correct?
>>>>> >>>
>>>>> >>> What could be a good industrial use case for this model for some
>>>>> >>> examples?  Could you train a system based on locations and weather
>>>>> to find
>>>>> >>> bad signals for cell phone?  Can you provide any real world example
>>>>> >>> scenario where this type of model will be useful for end users?
>>>>> >>>
>>>>> >>> Also I am adding CC to some of my colleagues at work.  Kuien, Max,
>>>>> >>> Yandong can you provide any feedback on this proposal from your
>>>>> Poi

Re: How to contribute a spatial module to MADlib manipulating objects from PostGIS

[Greg Chase]

We always share the presentation and post the video replay as well.

You can also drink lots of coffee, and join us if you are crazy enough.

We like crazy people.

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Jan 14, 2016, at 6:35 PM, Kuien Liu  wrote:
> 
> Yes, 2AM on Saturday... May you please share Gautam's representation video 
> after the call?
> 
> Cheers,
> Kuien Liu
> 
>> On Wed, Jan 13, 2016 at 6:36 PM, Greg Chase  wrote:
>> As I said, our next call is not China-friendly: 
>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3CCAMg1VtnKB-WoyVqCstfMNCcJVOn2HKQQ6wNfqdovhgnB7zd5cw%40mail.gmail.com%3E
>> 
>> This is this Friday, 10AM Pacifc Standard Time which is 2AM Saturday Beijing 
>> time.
>> 
>> We will arrange a next call in a couple weeks at an Asia friendly time to 
>> support contributors in Asia.
>> 
>> However, if you make the next call, we will make time for you to talk :)
>> 
>> Regards,
>> 
>> -Greg
>> 
>>> On Wed, Jan 13, 2016 at 2:18 AM, Kuien Liu  wrote:
>>> Great, I would like to join it, please send me an invitation if possible.
>>> 
>>> Cheers,
>>> Kuien Liu
>>> 
>>>> On Wed, Jan 13, 2016 at 6:10 PM, Greg Chase  wrote:
>>>> Perhaps ChenLiang would like to join a call with the MADlib community and 
>>>> discuss his contribution?
>>>> 
>>>> We have a call this Friday 10AM PST which is not a friendly time for 
>>>> China, but we can schedule a next call at a friendlier time.
>>>> 
>>>> This email encrypted by tiny buttons & fat thumbs, beta voice recognition, 
>>>> and autocorrect on my iPhone.
>>>> 
>>>> > On Jan 13, 2016, at 1:53 AM, Ivan Novick  wrote:
>>>> >
>>>> > Cool!
>>>> >
>>>> >> On Wed, Jan 13, 2016 at 5:52 PM, Kuien Liu  wrote:
>>>> >>
>>>> >> Got it, I think I can have a (f2f) talk with Chenliang Wang, as he was
>>>> >> graduated from an institute of CAS which is not far from our Beijing
>>>> >> office, and I am familiar with his supervisor and lab director. So I 
>>>> >> think
>>>> >> it is highly possible to find him directly in Beijing.
>>>> >>
>>>> >> Cheers,
>>>> >> Kuien Liu
>>>> >>
>>>> >>> On Wed, Jan 13, 2016 at 3:05 PM, Ivan Novick  
>>>> >>> wrote:
>>>> >>>
>>>> >>> Hello ChenLiang,
>>>> >>>
>>>> >>> I have read your description of the interface and to my understanding
>>>> >>> this is a supervised machine learning algorithm that supports geometry
>>>> >>> data.  Am I correct?
>>>> >>>
>>>> >>> What could be a good industrial use case for this model for some
>>>> >>> examples?  Could you train a system based on locations and weather to 
>>>> >>> find
>>>> >>> bad signals for cell phone?  Can you provide any real world example
>>>> >>> scenario where this type of model will be useful for end users?
>>>> >>>
>>>> >>> Also I am adding CC to some of my colleagues at work.  Kuien, Max,
>>>> >>> Yandong can you provide any feedback on this proposal from your Point 
>>>> >>> of
>>>> >>> View?
>>>> >>>
>>>> >>>
>>>> >>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3cblu175-w72199bca72716d8c1a99bf4...@phx.gbl%3E
>>>> >>>
>>>> >>> Cheers,
>>>> >>> Ivan
>>>> >>>
>>>> >>>
>>>> >>> On Wed, Jan 13, 2016 at 11:20 AM, WangChenLiang 
>>>> >>> wrote:
>>>> >>>
>>>> >>>> Sorry, the link of attachment (http://1drv.ms/1ZjAiCg) is lost in the
>>>> >>>> previous letter.
>>>> >>>>
>>>> >>>>> From: hi181904...@msn.com
>>>> >>>>> To: dev@madlib.incubator.apache.org
>>>> >>>>> Subject: RE: How to contribute a spatial module to MADlib 
>>>> >>>>> manipulating
>>>> >>&

Re: How to contribute a spatial module to MADlib manipulating objects from PostGIS

[Greg Chase]

Hi Chenliang,
Will we hear from you tomorrow at 10AM Pacific, or in a few weeks when the
call is a better time for Asia-based callers?

-Greg

On Thu, Jan 14, 2016 at 8:18 AM, chenliang wang  wrote:

> Cool!  I'd like to join the next discussion.
>
> Best,
> Chenliang Wang
>
>
> On 01/13/2016 06:36 PM, Greg Chase wrote:
>
>> As I said, our next call is not China-friendly:
>>
>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3CCAMg1VtnKB-WoyVqCstfMNCcJVOn2HKQQ6wNfqdovhgnB7zd5cw%40mail.gmail.com%3E
>>
>> This is this Friday, 10AM Pacifc Standard Time which is 2AM Saturday
>> Beijing time.
>>
>> We will arrange a next call in a couple weeks at an Asia friendly time to
>> support contributors in Asia.
>>
>> However, if you make the next call, we will make time for you to talk :)
>>
>> Regards,
>>
>> -Greg
>>
>> On Wed, Jan 13, 2016 at 2:18 AM, Kuien Liu  wrote:
>>
>> Great, I would like to join it, please send me an invitation if possible.
>>>
>>> Cheers,
>>> Kuien Liu
>>>
>>> On Wed, Jan 13, 2016 at 6:10 PM, Greg Chase  wrote:
>>>
>>> Perhaps ChenLiang would like to join a call with the MADlib community and
>>>> discuss his contribution?
>>>>
>>>> We have a call this Friday 10AM PST which is not a friendly time for
>>>> China, but we can schedule a next call at a friendlier time.
>>>>
>>>> This email encrypted by tiny buttons & fat thumbs, beta voice
>>>> recognition, and autocorrect on my iPhone.
>>>>
>>>> On Jan 13, 2016, at 1:53 AM, Ivan Novick  wrote:
>>>>>
>>>>> Cool!
>>>>>
>>>>> On Wed, Jan 13, 2016 at 5:52 PM, Kuien Liu  wrote:
>>>>>>
>>>>>> Got it, I think I can have a (f2f) talk with Chenliang Wang, as he was
>>>>>> graduated from an institute of CAS which is not far from our Beijing
>>>>>> office, and I am familiar with his supervisor and lab director. So I
>>>>>>
>>>>> think
>>>>
>>>>> it is highly possible to find him directly in Beijing.
>>>>>>
>>>>>> Cheers,
>>>>>> Kuien Liu
>>>>>>
>>>>>> On Wed, Jan 13, 2016 at 3:05 PM, Ivan Novick 
>>>>>>>
>>>>>> wrote:
>>>>
>>>>> Hello ChenLiang,
>>>>>>>
>>>>>>> I have read your description of the interface and to my understanding
>>>>>>> this is a supervised machine learning algorithm that supports
>>>>>>> geometry
>>>>>>> data.  Am I correct?
>>>>>>>
>>>>>>> What could be a good industrial use case for this model for some
>>>>>>> examples?  Could you train a system based on locations and weather to
>>>>>>>
>>>>>> find
>>>>
>>>>> bad signals for cell phone?  Can you provide any real world example
>>>>>>> scenario where this type of model will be useful for end users?
>>>>>>>
>>>>>>> Also I am adding CC to some of my colleagues at work.  Kuien, Max,
>>>>>>> Yandong can you provide any feedback on this proposal from your Point
>>>>>>>
>>>>>> of
>>>>
>>>>> View?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3cblu175-w72199bca72716d8c1a99bf4...@phx.gbl%3E
>>>>
>>>>> Cheers,
>>>>>>> Ivan
>>>>>>>
>>>>>>>
>>>>>>> On Wed, Jan 13, 2016 at 11:20 AM, WangChenLiang >>>>>> >
>>>>>>> wrote:
>>>>>>>
>>>>>>> Sorry, the link of attachment (http://1drv.ms/1ZjAiCg) is lost in
>>>>>>>>
>>>>>>> the
>>>>
>>>>> previous letter.
>>>>>>>>
>>>>>>>> From: hi181904...@msn.com
>>>>>>>>> To: dev@madlib.incubator.apache.org
>>>>>>>>> Subject: RE: How to contribute a spatial module to MADlib
>>>>>>>>>
>>>>>>>> manipulating
>>>>
>>>>>

Re: New MADlib committer: Xiaocheng Tang

[Greg Chase]

Congrats Xiaocheng! Welcome to becoming a leader in the community!

On Wed, Jan 13, 2016 at 6:22 PM, Frank McQuillan 
wrote:

> Dear MADlib dev community,
>
> The Project Management Committee (PMC) for Apache MADlib has asked
> Xiaocheng Tang to become a committer and we are pleased to announce that he
> has accepted.
>
> Recently Xiaocheng has been working on a completely new version of Support
> Vector Machines in addition to making various bug fixes and refinements to
> existing algorithms.
>
> Being a committer enables easier contribution to the project since there is
> no need to go via the patch submission process.  This should enable better
> productivity.  Being a PMC member enables assistance with the management
> and to guide the direction of the project.
>
> Welcome Xiaocheng!
>
> Regards,
> Frank
>

Re: How to contribute a spatial module to MADlib manipulating objects from PostGIS

[Greg Chase]

As I said, our next call is not China-friendly:
http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3CCAMg1VtnKB-WoyVqCstfMNCcJVOn2HKQQ6wNfqdovhgnB7zd5cw%40mail.gmail.com%3E

This is this Friday, 10AM Pacifc Standard Time which is 2AM Saturday
Beijing time.

We will arrange a next call in a couple weeks at an Asia friendly time to
support contributors in Asia.

However, if you make the next call, we will make time for you to talk :)

Regards,

-Greg

On Wed, Jan 13, 2016 at 2:18 AM, Kuien Liu  wrote:

> Great, I would like to join it, please send me an invitation if possible.
>
> Cheers,
> Kuien Liu
>
> On Wed, Jan 13, 2016 at 6:10 PM, Greg Chase  wrote:
>
>> Perhaps ChenLiang would like to join a call with the MADlib community and
>> discuss his contribution?
>>
>> We have a call this Friday 10AM PST which is not a friendly time for
>> China, but we can schedule a next call at a friendlier time.
>>
>> This email encrypted by tiny buttons & fat thumbs, beta voice
>> recognition, and autocorrect on my iPhone.
>>
>> > On Jan 13, 2016, at 1:53 AM, Ivan Novick  wrote:
>> >
>> > Cool!
>> >
>> >> On Wed, Jan 13, 2016 at 5:52 PM, Kuien Liu  wrote:
>> >>
>> >> Got it, I think I can have a (f2f) talk with Chenliang Wang, as he was
>> >> graduated from an institute of CAS which is not far from our Beijing
>> >> office, and I am familiar with his supervisor and lab director. So I
>> think
>> >> it is highly possible to find him directly in Beijing.
>> >>
>> >> Cheers,
>> >> Kuien Liu
>> >>
>> >>> On Wed, Jan 13, 2016 at 3:05 PM, Ivan Novick 
>> wrote:
>> >>>
>> >>> Hello ChenLiang,
>> >>>
>> >>> I have read your description of the interface and to my understanding
>> >>> this is a supervised machine learning algorithm that supports geometry
>> >>> data.  Am I correct?
>> >>>
>> >>> What could be a good industrial use case for this model for some
>> >>> examples?  Could you train a system based on locations and weather to
>> find
>> >>> bad signals for cell phone?  Can you provide any real world example
>> >>> scenario where this type of model will be useful for end users?
>> >>>
>> >>> Also I am adding CC to some of my colleagues at work.  Kuien, Max,
>> >>> Yandong can you provide any feedback on this proposal from your Point
>> of
>> >>> View?
>> >>>
>> >>>
>> >>>
>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3cblu175-w72199bca72716d8c1a99bf4...@phx.gbl%3E
>> >>>
>> >>> Cheers,
>> >>> Ivan
>> >>>
>> >>>
>> >>> On Wed, Jan 13, 2016 at 11:20 AM, WangChenLiang 
>> >>> wrote:
>> >>>
>> >>>> Sorry, the link of attachment (http://1drv.ms/1ZjAiCg) is lost in
>> the
>> >>>> previous letter.
>> >>>>
>> >>>>> From: hi181904...@msn.com
>> >>>>> To: dev@madlib.incubator.apache.org
>> >>>>> Subject: RE: How to contribute a spatial module to MADlib
>> manipulating
>> >>>> objects from PostGIS
>> >>>>> Date: Wed, 13 Jan 2016 11:09:17 +0800
>> >>>>>
>> >>>>>
>> >>>>>
>> >>>>> Hi   ,Caleb and Ivan!
>> >>>>>   Thanks for your attention and help. I reviewed the previous draft
>> >>>> and find
>> >>>>> something inappropriate. The archive containing the new draft and
>> >>>> example code
>> >>>>> is attached in the letter which would be more reasonable  than the
>> >>>> earlier edition.
>> >>>>> Please go over the manuscript and give suggestion again .
>> >>>>> The following are my answers to Caleb's questions.
>> >>>>> - Does this function require PostGIS to also be
>> >>>>> installed? If yes, it would be better
>> >>>>> if we disable the function if
>> >>>>> PostGIS is not present rather than introduce PostGIS
>> >>>>> as a dependency. (Similar
>> >>>>> to what we do with our requirement on the xml module with our PMML
>> >>>> export
>> >>>>> func

Re: How to contribute a spatial module to MADlib manipulating objects from PostGIS

[Greg Chase]

Perhaps ChenLiang would like to join a call with the MADlib community and 
discuss his contribution?

We have a call this Friday 10AM PST which is not a friendly time for China, but 
we can schedule a next call at a friendlier time.

This email encrypted by tiny buttons & fat thumbs, beta voice recognition, and 
autocorrect on my iPhone.

> On Jan 13, 2016, at 1:53 AM, Ivan Novick  wrote:
> 
> Cool!
> 
>> On Wed, Jan 13, 2016 at 5:52 PM, Kuien Liu  wrote:
>> 
>> Got it, I think I can have a (f2f) talk with Chenliang Wang, as he was
>> graduated from an institute of CAS which is not far from our Beijing
>> office, and I am familiar with his supervisor and lab director. So I think
>> it is highly possible to find him directly in Beijing.
>> 
>> Cheers,
>> Kuien Liu
>> 
>>> On Wed, Jan 13, 2016 at 3:05 PM, Ivan Novick  wrote:
>>> 
>>> Hello ChenLiang,
>>> 
>>> I have read your description of the interface and to my understanding
>>> this is a supervised machine learning algorithm that supports geometry
>>> data.  Am I correct?
>>> 
>>> What could be a good industrial use case for this model for some
>>> examples?  Could you train a system based on locations and weather to find
>>> bad signals for cell phone?  Can you provide any real world example
>>> scenario where this type of model will be useful for end users?
>>> 
>>> Also I am adding CC to some of my colleagues at work.  Kuien, Max,
>>> Yandong can you provide any feedback on this proposal from your Point of
>>> View?
>>> 
>>> 
>>> http://mail-archives.apache.org/mod_mbox/incubator-madlib-dev/201601.mbox/%3cblu175-w72199bca72716d8c1a99bf4...@phx.gbl%3E
>>> 
>>> Cheers,
>>> Ivan
>>> 
>>> 
>>> On Wed, Jan 13, 2016 at 11:20 AM, WangChenLiang 
>>> wrote:
>>> 
 Sorry, the link of attachment (http://1drv.ms/1ZjAiCg) is lost in the
 previous letter.
 
> From: hi181904...@msn.com
> To: dev@madlib.incubator.apache.org
> Subject: RE: How to contribute a spatial module to MADlib manipulating
 objects from PostGIS
> Date: Wed, 13 Jan 2016 11:09:17 +0800
> 
> 
> 
> Hi   ,Caleb and Ivan!
>   Thanks for your attention and help. I reviewed the previous draft
 and find
> something inappropriate. The archive containing the new draft and
 example code
> is attached in the letter which would be more reasonable  than the
 earlier edition.
> Please go over the manuscript and give suggestion again .
> The following are my answers to Caleb's questions.
> - Does this function require PostGIS to also be
> installed? If yes, it would be better
> if we disable the function if
> PostGIS is not present rather than introduce PostGIS
> as a dependency. (Similar
> to what we do with our requirement on the xml module with our PMML
 export
> functionality).
> 
> 
> 
> A:Yes. I am trying to avoid
> input any spatial datatypes in the interface of GWR.
> But I have no
> idea if it is necessary to provide simple alternative when PostGIS is
 not
> available.
> 
> 
> 
> - What are the exact datatypes in the function
> definition for regression_location
> and prediction_location?
> 
> 
> 
> 
> 
> A:I changed the datatype
> to TEXT as the name of POINT or MULTIPOLYGON
> (centroid of
> each polygon for estimation for GWR).
> 
> 
> 
> - In the description it describes
> regression_location as "The length of
> regression_location must be equal to the length of
> source_table", which signals to me that it is likely intended to be a
> column of the source table? If not then how is
> this length represented?
> 
> 
> A: In the previous
> interface, I was trying to input a geometry field which could be
> from another
> table having different row number. Now, I alter the argument
> definition and make it
> to TEXT. It must be the name of geometry field in the
> source table.
> 
> 
> 
> - You didn't mark regression_location as
> (optional). Due to the way Postgres
> functions work all optional arguments
> must come after all required arguments,
> so having a non-optional argument in
> the middle of the optional list must be
> avoided.
> 
> 
> 
> A:Thanks for
> reminding me of this mistake. It is really my fault. The order of
> argument is changed in this edition.
> 
> 
> 
> 
> - I haven't read through the literature, but it is
> not immediately clear to me why
> prediction_location is a parameter to
> gwregr_train() rather than gwregr_predict().
> Can you provide a brief
> description to the way that prediction_location is used in
> the model and its
> relationship to training and prediction.
> 
> 
> 
> A: Actually,
> there are three kinds location data including location of sample data,
> regress