Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Markus Krötzsch]

On 22.10.2015 21:49, Benjamin Good wrote:

I am having the same kinds of 500 problems.  Bitbucket is generally
suffering today: http://status.bitbucket.org


Indeed, they had a site-wide issue. Seems to be fixed now.

Markus



On Thu, Oct 22, 2015 at 12:27 PM, Markus Kroetzsch
mailto:markus.kroetz...@tu-dresden.de>>
wrote:

On 22.10.2015 19:29, Dario Taraborelli wrote:

I’m constantly getting 500 errors.


I also observed short outages in the past, and I sometimes had to
run a request twice to get an answer. It seems that the hosting on
bitbucket is not very reliable. At the moment, this is still a first
preview of the tool without everything set up as it should be. The
tool should certainly move to Wikimedia labs in the future.

Markus



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+49 351 463 38486 
http://korrekt.org/

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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Gerard Meijssen]

Hoi,
The problem with tools like this is that they get a moment attention.
Particularly when they are stand alone, not integrated, they will lose
interest.

Would it be an option to host this tool on Labs?
Thanks,
 GerardM

On 22 October 2015 at 21:27, Markus Kroetzsch <
markus.kroetz...@tu-dresden.de> wrote:

> On 22.10.2015 19:29, Dario Taraborelli wrote:
>
>> I’m constantly getting 500 errors.
>>
>>
> I also observed short outages in the past, and I sometimes had to run a
> request twice to get an answer. It seems that the hosting on bitbucket is
> not very reliable. At the moment, this is still a first preview of the tool
> without everything set up as it should be. The tool should certainly move
> to Wikimedia labs in the future.
>
> Markus
>
>
>
> --
> Markus Kroetzsch
> Faculty of Computer Science
> Technische Universität Dresden
> +49 351 463 38486
> http://korrekt.org/
>
> ___
> Wikidata mailing list
> Wikidata@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/wikidata
>
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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Thomas Douillard]

Integration is the purpose of templates like Q' with Reasonator or P' and
Item Documentation
, I don't know if they are actually use. Templates like Query have a
limited success however

2015-10-23 11:16 GMT+02:00 Gerard Meijssen :

> Hoi,
> The problem with tools like this is that they get a moment attention.
> Particularly when they are stand alone, not integrated, they will lose
> interest.
>
> Would it be an option to host this tool on Labs?
> Thanks,
>  GerardM
>
> On 22 October 2015 at 21:27, Markus Kroetzsch <
> markus.kroetz...@tu-dresden.de> wrote:
>
>> On 22.10.2015 19:29, Dario Taraborelli wrote:
>>
>>> I’m constantly getting 500 errors.
>>>
>>>
>> I also observed short outages in the past, and I sometimes had to run a
>> request twice to get an answer. It seems that the hosting on bitbucket is
>> not very reliable. At the moment, this is still a first preview of the tool
>> without everything set up as it should be. The tool should certainly move
>> to Wikimedia labs in the future.
>>
>> Markus
>>
>>
>>
>> --
>> Markus Kroetzsch
>> Faculty of Computer Science
>> Technische Universität Dresden
>> +49 351 463 38486
>> http://korrekt.org/
>>
>> ___
>> Wikidata mailing list
>> Wikidata@lists.wikimedia.org
>> https://lists.wikimedia.org/mailman/listinfo/wikidata
>>
>
>
> ___
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[Wikidata] Fwd: [Wikimedia-l] Open Science Prize launched

[Lydia Pintscher]

Hey folks :)

In case you have not seen it yet. I'm sure there is lots that can be
done with Wikidata here.


Cheers
Lydia


-- Forwarded message --
From: Daniel Mietchen 
Date: Fri, Oct 23, 2015 at 5:20 AM
Subject: [Wikimedia-l] Open Science Prize launched
To: Wikimedia Mailing List 


Dear all,

this week, the U.S. National Institutes of Health, together with the
Wellcome Trust and the Howard Hughes Medical Institute launched the
Open Science Prize:
https://www.openscienceprize.org/ .

It invites teams to propose or refine technical infrastructure that
makes innovative use of open data or that advances open science more
generally, though with a focus on biomedicine.

The awards will be made in two phases - 6 at $80k each in Phase 1, and
in Phase 2, $230k for the winning team among these 6.

Teams must have at least one member each inside and outside the US,
and team members can be individuals, groups or legal entities (e.g. a
GLAM, a company or a city). The abstracts of the submissions will be
public, and openness beyond that is strongly encouraged.

Deadline for submissions to Phase 1 is February 29, 2016.

For official announcements, see
http://blog.wellcome.ac.uk/2015/10/20/the-open-science-prize-harnessing-the-innovative-power-of-open-data-and-content/
or
https://datascience.nih.gov/openscienceprize ,
and for an initial blog post by one of the members of the expert panel
for the prize, see
http://aoasg.org.au/2015/10/22/why-the-open-science-prize-is-important/ .

As I am involved in the organization of the prize as part of my work,
I cannot be part of any submitting team, but I will be happy to answer
any procedural questions you may have.

Please feel free to forward this to communities that you think might
be interested in coming up with an idea to submit.

Thanks and cheers,

Daniel

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Wikimedia Deutschland e.V.
Tempelhofer Ufer 23-24
10963 Berlin
www.wikimedia.de

Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.

Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg
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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Lydia Pintscher]

On Thu, Oct 22, 2015 at 5:31 PM, Markus Kroetzsch
 wrote:
> Hi all,
>
> I am happy to announce a new tool [1], written by Serge Stratan, which
> allows you to browse the taxonomy (subclass of & instance of relations)
> between Wikidata's most important class items.

Nice work! Thanks for sharing.


Cheers
Lydia

-- 
Lydia Pintscher - http://about.me/lydia.pintscher
Product Manager for Wikidata

Wikimedia Deutschland e.V.
Tempelhofer Ufer 23-24
10963 Berlin
www.wikimedia.de

Wikimedia Deutschland - Gesellschaft zur Förderung Freien Wissens e. V.

Eingetragen im Vereinsregister des Amtsgerichts Berlin-Charlottenburg
unter der Nummer 23855 Nz. Als gemeinnützig anerkannt durch das
Finanzamt für Körperschaften I Berlin, Steuernummer 27/681/51985.

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Re: [Wikidata] Welcome Meta, MediaWiki and Wikispecies

[Maarten Dammers]

Op 21-10-2015 om 12:32 schreef Magnus Manske:

Anyone running a bot to integrate Wikispecies pages?
This moved to 
https://www.wikidata.org/wiki/Wikidata:Bot_requests#Wikispecies_sitelinks :-)


Maarten

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[Wikidata] [CFP - Extended Deadline 20/11] Semantic Web Journal - Special Issue on Quality Management of Semantic Web Assets (Data, Services and Systems)

[Sebastian Hellmann]

*Extended Deadline November 20, 2015

CFP: Semantic Web Journal - Special Issue on Quality Management of 
Semantic Web Assets (Data, Services and Systems):* 
http://www.semantic-web-journal.net/blog/call-papers-special-issue-quality-management-semantic-web-assets-data-services-and-systems



   Submission guidelines

*Deadline:October 31, 2015* > *November 20, 2015**
*

Submissions shall be made through the Semantic Web journal website at 
http://www.semantic-web-journal.net. Prospective authors must take 
notice of the submission guidelines posted at 
http://www.semantic-web-journal.net/authors. Note that you need to 
request an account on the website for submitting a paper. Please 
indicate in the cover letter that it is for the Special Issue on Quality 
Management of Semantic Web Assets (Data, Services and Systems).


Submissions are possible in the following categories: full research 
papers, application reports, reports on tools and systems, and case 
studies. While there is no upper limit, paper length must be justified 
by content.



   Guest editors

 * Amrapali Zaveri, University of Leipzig, AKSW Group, Germany
 * Dimitris Kontokostas, University of Leipzig, AKSW Group, Germany
 * Sebastian Hellmann, University of Leipzig, AKSW Group, Germany
 * Jürgen Umbrich, Vienna University of Economics and Business, Austria

*Overview and Topics*

The standardization and adoption of Semantic Web technologies has 
resulted in a variety of assets, including an unprecedented volume of 
data being semantically enriched and systems and services, which consume 
or publish this data. Although gathering, processing and publishing data 
is a step towards further adoption of Semantic Web, quality does not yet 
play a central role in these assets (e.g., data lifecycle, 
system/service development).


Quality management essentially refers to activities and tasks involved 
to guarantee a certain level of consistency and to meet the quality 
requirements for the assets. In general, quality management consists of 
the following four phases and components: (i) quality planning, (ii) 
quality control, (iii) quality assurance and (iv) quality improvement.


The quality planning phase in the Semantic Web typically involves the 
design of procedures, strategies and policies to support the management 
of the assets. The quality control and assurance components have their 
primary aim in preventing errors and to meet quality requirements 
pertaining to the Semantic Web standards. A core part for both 
components are quality assessment methods which provide the necessary 
input for the controlling and assurance tasks.


Quality assessment of Semantic Web Assets (data, services and systems), 
in particular, presents new challenges that were not handled before in 
other research areas. Thus, adopting existing approaches for data 
quality assessment is not a straightforward solution. These challenges 
are related to the openness of the Semantic Web, the diversity of the 
information and the unbounded, dynamic set of autonomous data sources, 
publishers and consumers (legal and software agents). Additionally, 
detecting the quality of available data sources and making the 
information explicit is yet another challenge. Moreover, noise in one 
data set, or missing links between different data sets, propagates 
throughout the Web of Data, and imposes great challenges on the data 
value chain.


In case of systems and services, different implementations follow the 
specifications for RDF and SPARQL to varying extents, or even propose 
and offer new, non-standardized extensions. This causes strong 
incompatibilities between systems, e.g., between the used SPARQL 
features in the query engines and support features in RDF stores. The 
potential heterogeneity and incompatibility poses several challenges for 
the quality assessments in and for such systems and services.


Eventually, quality improvement methods are used to further enhance the 
value of the Semantic Web Assets. One important step to improve the 
quality of data is identifying the root cause of the problem and then 
designing corresponding data improvement solutions. These solutions 
select the most effective and efficient strategies and related set of 
techniques and tools to improve quality. Quality improvement metrics for 
products and services entails understanding and improving operational 
processes and establishing valid and reliable service performance measures.


This Special Issue is addressed to those members of the community 
interested in providing novel methodologies or frameworks in managing, 
assessing, monitoring, maintaining and improving the quality of the 
Semantic Web data, services and systems and also introduce tools and 
user interfaces which can effectively assist in this management.



   Topics of Interest

We welcome original high quality submissions on (but are not restricted 
to) the following topics:


 * Methodologies and frameworks to plan, co

Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Markus Krötzsch]

On 23.10.2015 11:16, Gerard Meijssen wrote:

Hoi,
The problem with tools like this is that they get a moment attention.
Particularly when they are stand alone, not integrated, they will lose
interest.


Problems, problems, ...



Would it be an option to host this tool on Labs?


Yes, this is planned for the future, especially to automate regular data 
updates, which Serge now has to do manually. Besides the changed URL, 
this move would make a big difference for users. What you see right now 
is a first prototype beta-release that is meant to gather user feedback 
on how to develop this tool further.


Markus



On 22 October 2015 at 21:27, Markus Kroetzsch
mailto:markus.kroetz...@tu-dresden.de>>
wrote:

On 22.10.2015 19:29, Dario Taraborelli wrote:

I’m constantly getting 500 errors.


I also observed short outages in the past, and I sometimes had to
run a request twice to get an answer. It seems that the hosting on
bitbucket is not very reliable. At the moment, this is still a first
preview of the tool without everything set up as it should be. The
tool should certainly move to Wikimedia labs in the future.

Markus



--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486 
http://korrekt.org/

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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Markus Krötzsch]

On 23.10.2015 09:12, Markus Krötzsch wrote:

On 22.10.2015 21:49, Benjamin Good wrote:

I am having the same kinds of 500 problems.  Bitbucket is generally
suffering today: http://status.bitbucket.org


Indeed, they had a site-wide issue. Seems to be fixed now.


I was rejoicing too early here ... http://status.bitbucket.org/ now 
reports "major outage" for most services. :-(


Maybe we should move to labs earlier ...

Markus



On Thu, Oct 22, 2015 at 12:27 PM, Markus Kroetzsch
mailto:markus.kroetz...@tu-dresden.de>>
wrote:

On 22.10.2015 19:29, Dario Taraborelli wrote:

I’m constantly getting 500 errors.


I also observed short outages in the past, and I sometimes had to
run a request twice to get an answer. It seems that the hosting on
bitbucket is not very reliable. At the moment, this is still a first
preview of the tool without everything set up as it should be. The
tool should certainly move to Wikimedia labs in the future.

Markus



--
Markus Kroetzsch
Faculty of Computer Science
Technische Universität Dresden
+49 351 463 38486 
http://korrekt.org/

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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Stas Malyshev]

Hi!

> I am happy to announce a new tool [1], written by Serge Stratan,
> which allows you to browse the taxonomy (subclass of & instance of
> relations) between Wikidata's most important class items. For
> example, here is the Wikidata taxonomy for Pizza (discussed recently
> on this list):

Very nice! One specially interesting to me is cycle detection - I just
discovered there are many (as in, hundreds) cycles in various important
properties such as P131 which break a lot of queries, and was wondering
what could be done to expose/eliminate those better.

-- 
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smalys...@wikimedia.org

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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Markus Krötzsch]

On 23.10.2015 20:19, Stas Malyshev wrote:

Hi!


 I am happy to announce a new tool [1], written by Serge Stratan,
 which allows you to browse the taxonomy (subclass of & instance of
 relations) between Wikidata's most important class items. For
 example, here is the Wikidata taxonomy for Pizza (discussed recently
 on this list):


Very nice! One specially interesting to me is cycle detection - I just
discovered there are many (as in, hundreds) cycles in various important
properties such as P131 which break a lot of queries, and was wondering
what could be done to expose/eliminate those better.



Yes, this should indeed be fixed, although it is theoretically possible 
that two distinct items (with two distinct Wikipedia articles on at 
least one Wikipedia) are considered to refer to equivalent classes on 
Wikidata, which could be expressed by a small subclass-of cycle. For 
example, it is really not clear to me what the difference between some 
of our upper level classes is. For instance, what is an example of an 
Entity that is not an Object? (Note that Object subsumes intangible 
things such as Method and Activity). Maybe a better way to deal with 
this situation would be to avoid using one of the items as a class 
altogether, so that no cycle is needed.


We also have/had cycles involving instance-of, which is definitely an 
error. ;-)


Counting cycles in SPARQL should be tricky. There are many distinct 
cyclic paths through a graph with a few cycles, even if only a small 
number of relations is causing them. SPARQL does not count paths as 
such, but one would probably count nodes that are located on a path, 
which would still consider all possible cyclic paths. The Taxonomy 
Browser is looking for shortest cycles, but you cannot do this in 
SPARQL. This might be why there are only 11 cycles detected there.


Markus

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Re: [Wikidata] Announcing Wikidata Taxonomy Browser (beta)

[Stas Malyshev]

Hi!

> least one Wikipedia) are considered to refer to equivalent classes on
> Wikidata, which could be expressed by a small subclass-of cycle. For

We can do it, but I'd rather we didn't. The reason is that it would
require engine that queries such data (e.g. SPARQL engine) to be
comfortable with cycles in property paths (especially ones with + and
*), and not every one is (Blazegraph for example looks like does not
handle them out of the box). It can be dealt with, I assume, but why
create trouble for ourselves?

> We also have/had cycles involving instance-of, which is definitely an
> error. ;-)

Right. So I think we need to mark properties that should not form cycles
with
https://www.wikidata.org/wiki/Q18647519 (asymmetric property) and have
constraints checking scripts/bots find out such cases and alert about them.
-- 
Stas Malyshev
smalys...@wikimedia.org

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