Re: [FRIAM] Delicious Alternative

2011-10-08 Thread Nicholas Thompson
Thanks Owen.  Since I use only firefox and only one computer, I can see why
I have never felt the need..  

 

Whew!

 

Nick 

 

From: friam-boun...@redfish.com [mailto:friam-boun...@redfish.com] On Behalf
Of Owen Densmore
Sent: Saturday, October 08, 2011 9:56 AM
To: The Friday Morning Applied Complexity Coffee Group
Subject: Re: [FRIAM] Delicious Alternative

 

I'm using pinboard, and just added the archive feature that keeps a copy of
your bookmarked pages.

 

Nick: this lets you search your bookmarks, sorta like your own personal
google on the pages you've shown interest in the past.  Also: the browsers
have plugins which make it easy to add a widget that quickly add the
current page you are looking at to your cloud bookmarks.  And if you've
selected any data on that page, it becomes a note, also for searching.

On Sat, Oct 8, 2011 at 2:27 AM, Jochen Fromm j...@cas-group.net wrote:

In a browser you can store only a small number of bookmarks, and only on one
computer. As Joshua said, if you use multiple computers or multiple browsers
then a social bookmark services is useful. Social bookmark services are
available from any computer, and offer functionalities like tagging. Tags
are useful to find bookmarks and to create taxonomies or folksonomies. You
can also see what other people in your network have bookmarked.

So how many of you use pinboard, and how many use diigo? Hands up, please
:-)

-J.

- Original Message - From: Nicholas Thompson
To: 'The Friday Morning Applied Complexity Coffee Group'
Sent: Tuesday, October 04, 2011 7:58 PM


Subject: Re: [FRIAM] Delicious Alternative



Robert, and others,

Another one of those naïve questions that drive you guys nuts:

Why would I want a book marking service beyond what is provided by my
browser?  [firefox] Not a rhetorical question.





FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org

 


FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
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Re: [FRIAM] Cell Service/Tower/Reception/Repeaters/etc.

2011-10-08 Thread Steve Smith

Gil -

Thanks!  Very Interesting!

My iPhone does have a field test mode (*3001#12345#*) which does 
expose the alternate towers that it sees (and might use).  I see no 
indication anywhere that I could influence it's choice, nor have I been 
able to find a concise description of the algorithm/heuristics likely 
used to decide.   The most obvious of course, would seem to be signal 
strength, but that ignores issues such as congestion.


Since GSM is a Frequency Division Multiplex hybridized with Time 
Division Multiplex, it seems like there would be almost immediate 
feedback to the mobile device as it tries to connect as to whether there 
even *was* an available time/frequency slot to use... the heuristic 
could be as simple as try the strongest signal you see, if it is full, 
try the next, repeat.


Along with a dB indication of (useable?) signal there is something 
called RSSI (received signal strength indicator) which seems useful for 
recognizing how much interference in the band there might be.   It tops 
out at about 50 underneath a tower but is as low as 5 when still 
useable.  Multiple towers competing and/or possibly other sources of 
interference run this number up without running up the useable signal.


There are two very cryptic numbers, C1 and C2 which from the mumbo jumbo 
I've found, might relate to the heuristic which I was seeking above... 
but I don't know yet... this is subtle and complicated stuff and it 
appears that short of finding a professional training course, there 
isn't much information laying around for the motivated layman.


See what we have become in this Internet/Google/Wikipedia age?  We DO 
expect a LOT!

Depending on the phone there might be a # code to get it to search for
more frequencies. Might take a bit of diging though. My oold Cinguluar
phone for instance used #689# that let it borrow other towers in
range. I'll check for the potenial andriod # codes to see if there's
something simillar.

On Fri, Oct 7, 2011 at 12:45 PM, Steve Smithsasm...@swcp.com  wrote:

I'm hoping *someone* out there knows more about this than I do, though none
of the earlier discussion seemed to bring any of that out.

I took up Gary Nelson's question about Cell Towers/Coverage, my own
frustrations, and the other resulting conversations to do a little research
and see if I could learn more and maybe even fix up some of my own
problems/challenges.

I'm testing iPhone 2, 3G, 4 against ATT and T-Mobile SIMS right now.  Mostly
at my house (very marginal signal if any) but will be doing other places.
  I'm looking at Cell Repeaters (primarily for my home, but maybe also
mobile).   I'm therefore *mostly* sorting out GSM related issues, but there
is a lot of overlap in general RF issues, repeaters, tower locations, etc.

I started trying to write up what I know (so far) and discovered that (as
often is the case) the more I know, the more I know I don't know.   My 3rd
Class Radiotelephony license  from 1974 and a BS in Physics provides just
enough background to get me in trouble.  I wrote a long, rambly overview of
what I know (dominated by what that made me realize I *didn't* know) and
decided most of you don't care.

So, if there are others trying to make actionable sense (or merely slake
your curiosity) about the issues of Cell Reception and the potential use of
Repeaters, ping me and we can discuss offline.  Maybe once we learn enough,
one or more of us can write up a (more) concise lessons learned.

My long-winded ramble was useful (to me) already, as trying to explain it to
the larger crowd caused me to dig just a little deeper than I was for more
practical reasons.   Now to get my nose back on the practical grindstone.

- Steve

--


FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org



FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org




FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
lectures, archives, unsubscribe, maps at http://www.friam.org


[FRIAM] India unveils world's cheapest tablet

2011-10-08 Thread Alfredo Covaleda
India unveils world's cheapest tablet computer
http://www.latimes.com/news/nationworld/world/la-fg-india-computer-tablet-20111006,0,1592428.story

I don't know if OLPC has been a successful program. If my memories don't
betray me, OLPC had problems because of some commercial conflicts with
hardware makers. I guess that India has got everything to achieve his/her
goals with this program.


   - _

Alfredo Covaleda Vélez
Cel:  (+57) 311 213 7829


FRIAM Applied Complexity Group listserv
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Re: [FRIAM] India unveils world's cheapest tablet

2011-10-08 Thread Sarbajit Roy
This tablet is a complete fraud. Every 6 months the concerned Minister
(equivalent to your Secretary)  keeps pulling such rabbits out of his
(subsidy) hat.

On Sat, Oct 8, 2011 at 11:09 PM, Alfredo Covaleda alfredocoval...@gmail.com
 wrote:

 India unveils world's cheapest tablet computer
 http://www.latimes.com/news/nationworld/world/la-fg-india-computer-tablet-20111006,0,1592428.story

 I don't know if OLPC has been a successful program. If my memories don't
 betray me, OLPC had problems because of some commercial conflicts with
 hardware makers. I guess that India has got everything to achieve his/her
 goals with this program.


- _

 Alfredo Covaleda Vélez
 Cel:  (+57) 311 213 7829
 

 
 FRIAM Applied Complexity Group listserv
 Meets Fridays 9a-11:30 at cafe at St. John's College
 lectures, archives, unsubscribe, maps at http://www.friam.org


FRIAM Applied Complexity Group listserv
Meets Fridays 9a-11:30 at cafe at St. John's College
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Re: [FRIAM] OpenCL class

2011-10-08 Thread Owen Densmore
We are going to have a change in the meeting times of the openCL class:

Days: Thursday (13th) followed by Wednesday (19th) and Friday (21st)
Times: 1:30p on each day


Sorry for any confusion!  We'll get this on the SFX calendar asap.

And folks planning to attend, keep letting us know.  It should be great to
see how the rest of the GPU gets used .. i.e. from openGL to openCL!
 Please do drop by.

   -- Owen


On Fri, Oct 7, 2011 at 6:40 PM, Owen Densmore o...@backspaces.net wrote:

 Robert Geist, who spoke recently at SFX (see below) has offered to lead a 3
 day class on OpenCL!

 OpenCL is the newly emerging standard for GPU use for high performance
 computation, lattice-Boltzmann methods for example.  And there is even a
 WebCL being designed for browsers: http://www.khronos.org/webcl/

 Current dates are set up to be during the day next Wednesday, then Friday,
 then Wednesday, i.e., 12th, 14th, 19th.

 We'd like to get a head count of folks interested in this so could folks
 respond to the list if you'd be interested in attending?

 -- Owen

 Here's a description of Robert's recent talk:
 *
 *
 *--*
 *
 *
 *Real-Time Modeling and Rendering of Natural Phenomena*
 *Robert Geist*
 Professor, School of Computing
 Clemson University

 WedTech @ Santa Fe Complex
 Wed Sep 21, noon (bring a brownbag lunch)

 *ABSTRACT*: Modeling and rendering natural phenomena, which includes all
 components of biophysical ecology, atmospherics, photon transport, and air
 and water flow, remains a challenging area for computer graphics research.
  Whether models are physically-based or procedural, model processing is
 almost always characterized by substantial computational demands which have
 almost always precluded  real-time performance.  Nevertheless, the recent
 development of new, highly  parallel computational models, coupled with
 dramatic performance improvements  in GPU-based execution platforms, has
 brought real-time modeling and rendering within reach.  The talk will focus
 on the natural synergy between GPU-based computing and the so-called
 lattice-Boltzmann methods for solutions to PDEs. Examples will include
 photon transport for global illumination and modeling and rendering of
 atmospheric clouds, forest ecosystems, and ocean waves.

 *BIO*:  Robert Geist is a Professor in the School of Computing at Clemson
 University. He served as Interim Director of the School in 2007-2008, and he
 is co-founder of Clemson's Digital Production Arts Program. He received an
 M.A. in computer science from Duke University and a Ph.D. in mathematics
 from the University of Notre Dame. He was an Associate Professor of
 Mathematics at the University of North Carolina at Pembroke and an Associate
 Professor of Computer Science at Duke University before joining the faculty
 at Clemson University. He is a member of IFIP WG 7.3, a recipient of the
 Günther Enderle Award (Best Paper, Eurographics), and a Distinguished
 Educator of the ACM.

 http://www.cs.clemson.edu/~geist/homepage.html


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