[Wikidata] New Wikidata maps

2015-06-25 Thread Markus Kroetzsch
-examples -- 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

Re: [Wikidata] Properties for family relationships in Wikidata

2015-08-17 Thread Markus Kroetzsch
of these? If there is interest I will write up a formal proposal on-wiki. -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org/ ___ Wikidata mailing list Wikidata@lists.wikimedia.org https

[Wikidata] Learning from DBpedia experiences

2015-07-31 Thread Markus Kroetzsch
. Cheers, Markus [1] http://vladimiralexiev.github.io/pres/20150209-dbpedia/dbpedia-problems-long.html -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org/ ___ Wikidata mailing list Wikidata

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

2015-10-22 Thread Markus Kroetzsch
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] Announcing Wikidata Taxonomy Browser (beta)

2015-10-22 Thread Markus Kroetzsch
etect. For example, you can see easily that every "Ship" is an "Event" in Wikidata, that every "Hobbit" is a "Fantasy Race", and that every "Monday" is both a "Mathematical object" and a "Unit of measurement". Feedback is welco

[Wikidata] WIkidata reasoning (Was: Properties for family relationships in Wikidata)

2015-08-27 Thread Markus Kroetzsch
-- Markus Kroetzsch, Departmental Lecturer Department of Computer Science, University of Oxford Room 306, Parks Road, OX1 3QD Oxford, United Kingdom +44 (0)1865 283529 http://korrekt.org/ ___ Wikidata mailing list Wikidata

Re: [Wikidata] Item count

2015-09-08 Thread Markus Kroetzsch
in the dump. Markus ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org

[Wikidata] SQID evolved again: references

2016-06-02 Thread Markus Kroetzsch
Dear all, By popular demand, SQID now also shows references for most statements (collapsed by default, of course). You can see it, e.g., here: http://tools.wmflabs.org/sqid/#/view?id=Q42 Cheers, Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351

Re: [Wikidata] Possibility of data lock

2016-06-10 Thread Markus Kroetzsch
ral, unavoidable?) process for Wikidata too much. The pros and cons of flagged revisions have been discussed in breadth on several Wikipedias, with diverse outcomes, so it is probably a tricky thing to settle on a conclusion here. Best regards, Markus -- Markus Kroetzsch Faculty of Computer Sc

Re: [Wikidata] Possibility of data lock

2016-06-10 Thread Markus Kroetzsch
given is not changed. I think this could be a symptom of a typical misunderstanding by newcomers (the population changed, so we just "edit" it to fix the number, rather than creating a new population value that supersedes the historic one). Markus -- Markus Kroetzsch Faculty o

Re: [Wikidata] Possibility of data lock

2016-06-10 Thread Markus Kroetzsch
On 10.06.2016 12:20, Jane Darnell wrote: Yes I agree, so I guess I disagree with the idea of a "data lock". I do however, recognize the desire for a "data lock" which arises out of a personal frustration with good-faith Wikidata editor behavior. Many of these unnecessary edits & subsequent

Re: [Wikidata] Possibility of data lock

2016-06-10 Thread Markus Kroetzsch
@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- 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

[Wikidata] another WDQS update lag example

2016-06-03 Thread Markus Kroetzsch
_Examples#German_states.2C_ordered_by_the_number_of_company_headquarters_per_million_inhabitants Side remark: using arithmetic operations on query results is a great way to get even more misleading statistics out of Wikidata ;-) It does not seem as if we have that feature yet in many example queries. -- Markus Kroetzsch Faculty of Computer Science

Re: [Wikidata] Wikidata humans per million inhabitants

2016-06-04 Thread Markus Kroetzsch
bove who are really alive but filtered by your approach). Either way this could be something to look at. Cheers Markus [1] A regrettable misnaming, since it has an epistemological component that is not part of the technical usage. A. On 4 June 2016 at 00:04, Markus Kroetzsch <markus.kroetz...@tu-

Re: [Wikidata] SQID evolved

2016-06-02 Thread Markus Kroetzsch
On 02.06.2016 15:55, Markus Kroetzsch wrote: On 02.06.2016 12:11, Gerard Meijssen wrote: Hoi, Check out the head of government <http://tools.wmflabs.org/sqid/#/view?id=P6>. Having both is probably redundant. I see. The order in SQID is not good there, since Obama is at the bottom of

Re: [Wikidata] SQID evolved

2016-06-02 Thread Markus Kroetzsch
mean here. When I open Q30 in SQID, I can see Obama listed as the president, with the correct times, and marked as a preferred statement (this is the star). What's missing for you? Cheers, Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486

Re: [Wikidata] Property about time of researching

2016-05-26 Thread Markus Kroetzsch
On 27.05.2016 07:06, Biyanto Rebin wrote: Hello all, Do we have specific property about time of researching before it's published? I'm trying to find in here: https://www.wikidata.org/wiki/Special:WhatLinksHere/Q18636219 and here:

Re: [Wikidata] Op-ed on Wikipedia Signpost regarding Wikidata licensing

2016-06-16 Thread Markus Kroetzsch
1] I think this is nothing to be ashamed of -- Google is huge and their own internal data is likely much larger than what we have in Wikidata today. We may get there yet. Most importantly, our data is available freely while Google's is not. -- Markus Kroetzsch Faculty of Computer Science

Re: [Wikidata] Op-ed on Wikipedia Signpost regarding Wikidata licensing

2016-06-16 Thread Markus Kroetzsch
nviado seguramente pelo Tutanota. Torne sua caixa de correio criptografada hoje mesmo! https://tutanota.com ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer S

[Wikidata] SQID evolved

2016-06-21 Thread Markus Kroetzsch
]. Cheers, Markus [1] http://tools.wmflabs.org/sqid/ [2] http://tools.wmflabs.org/sqid/#/browse?type=properties [3] https://github.com/Wikidata/SQID/tree/master/src/lang [4] https://github.com/Wikidata/SQID/issues/71 [6] https://github.com/Wikidata/SQID/issues -- Markus Kroetzsch Faculty of Computer

Re: [Wikidata] Op-ed on Wikipedia Signpost regarding Wikidata licensing

2016-06-18 Thread Markus Kroetzsch
idata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org/ ___ Wikidata mai

Re: [Wikidata] Machine-readable Wikidata ontology/schema?

2016-06-23 Thread Markus Kroetzsch
dpoint. Markus [1] Most recent one is already two montsh old though; there seems to be a bug with the generator: http://tools.wmflabs.org/wikidata-exports/rdf/index.php?content=dump_download.php=20160425 [2] http://tools.wmflabs.org/sqid/#/browse?type=properties -- Markus Kroetzsch F

Re: [Wikidata] Op-ed on Wikipedia Signpost regarding Wikidata licensing

2016-06-20 Thread Markus Kroetzsch
for a lot more spam than we are seeing now. 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

Re: [Wikidata] Op-ed on Wikipedia Signpost regarding Wikidata licensing

2016-06-21 Thread Markus Kroetzsch
fear to somehow benefit somebody "wrong". -- 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

Re: [Wikidata] How would I add data to Wikidata in voice AI - and anticipating brain wave head sets?

2016-06-25 Thread Markus Kroetzsch
? Could prospective students begin to apply in voice to WUaS, for example, as if applying to MIT or Stanford from around the world, first in English? Thank you. Best regards, Scott http://worlduniversityandschool.org <http://worlduniversityandschool.org/> __

[Wikidata] Wikidata RDF PHP export bug

2016-02-08 Thread Markus Kroetzsch
et (not sure if there are consumers of the live exports). The SPARQL query service uses the correct URIs in its example queries and data. The URIs in the ontology documents at wikiba.se are also correct, so this only seems to affect the PHP code. Cheers, Markus [1] wikiba.se/ontology -- Mark

Re: [Wikidata] Wikidata RDF PHP export bug

2016-02-08 Thread Markus Kroetzsch
e same thing should use the same URI in SPARQL results and live exports. (2) It is better to version ontology documents rather than the URIs themselves. Otherwise everybody will have to change all of their queries (in wiki pages, in code, in their heads, ...) once we get out of beta. Cheers, Marku

Re: [Wikidata] Wikidata RDF PHP export bug

2016-02-08 Thread Markus Kroetzsch
ers, 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

Re: [Wikidata] upcoming deployments/features

2016-02-05 Thread Markus Kroetzsch
and there were no applications to break. 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

Re: [Wikidata] WDQS stability

2016-02-05 Thread Markus Kroetzsch
it happens. Thanks, -- 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

Re: [Wikidata] [Wikidata-tech] Technical information about the new "math" and "external-id" data types

2016-02-05 Thread Markus Kroetzsch
BookSources/3827370191;, "type": "string" }, "datatype": "external-id" } The base URL would be given as a statement on the property, just like the base URI. We plan to use the same mechanism for giving Quantities in a standa

Re: [Wikidata] SPARQL CONSTRUCT results truncated

2016-02-13 Thread Markus Kroetzsch
ta mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische

Re: [Wikidata] SPARQL CONSTRUCT results truncated

2016-02-13 Thread Markus Kroetzsch
On 13.02.2016 22:56, Markus Kroetzsch wrote: And here is another comment on this interesting topic :-) I just realised how close the service is to answering the query. It turns out that you can in fact get the whole set of (currently >324000 result items) together with their GND identifi

Re: [Wikidata] SPARQL CONSTRUCT results truncated

2016-02-13 Thread Markus Kroetzsch
imedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org/ ___ Wikidata mailing list Wikidata@lists.wikimedia

[Wikidata] SPARQL returns bnodes for some items

2016-02-26 Thread Markus Kroetzsch
less than 0.001% of the 623,963 P279 statements, but it's still enough to have application code trip over the unexpected return format ;-). Best Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 ht

Re: [Wikidata] Wikidata Propbrowse

2016-02-14 Thread Markus Kroetzsch
On 14.02.2016 18:03, Hay (Husky) wrote: On Sun, Feb 14, 2016 at 4:40 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de> wrote: I suspect that https://query.wikidata.org can count how many times each property is used. Amazingly, you can (I was surprised): https://query.wikida

Re: [Wikidata] Wikidata Propbrowse

2016-02-14 Thread Markus Kroetzsch
t Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org> https://lists.wikimedia.org/mailman/listinfo/wikidata ___ Wikidata mailing list Wikidata@lists.wikimedia.org <mailto:Wikidata@lists.wikimedia.org>

Re: [Wikidata] Status and ETA External ID conversion

2016-03-07 Thread Markus Kroetzsch
ble property groups Reasonator-style into Wikidata at some point. It works much better than creating new datatypes for each case, it can build on existing data (rather than starting new discussions on datatype conversion), and it has the advantage that it can also group properties of differen

Re: [Wikidata] Status and ETA External ID conversion

2016-03-06 Thread Markus Kroetzsch
d the same questions. In your case, however, the answer probably is: you cannot contribute there at all, since you are a Wikimedia employee and this is a content-related community discussion. ;-) Best, Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +4

Re: [Wikidata] Status and ETA External ID conversion

2016-03-07 Thread Markus Kroetzsch
and private activities separate by using different accounts. 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

Re: [Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-20 Thread Markus Kroetzsch
by property example statements on the property pages, like here: http://localhost/wdcb/#/view?id=P553 But I have no idea about the references. Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org

Re: [Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-20 Thread Markus Kroetzsch
On 20.04.2016 22:29, Markus Kroetzsch wrote: On 20.04.2016 21:58, Stas Malyshev wrote: Hi! Nice work! I especially like the ability to filter the properties by usage amount here: https://tools.wmflabs.org/sqid/#/browse?type=properties This makes it super easy to find unused or nearly unused

Re: [Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-21 Thread Markus Kroetzsch
? 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

Re: [Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-21 Thread Markus Kroetzsch
be worthwhile at some point, since we do have quite a lot of messages already. Markus On 21 April 2016 at 22:40, Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: On 21.04.2016 22:27, Gerard Meijssen wrote: Hoi, A que

Re: [Wikidata] Multiple properties/identifiers for the same resource

2016-04-27 Thread Markus Kroetzsch
n is maybe no problem. Cheers, Markus Thanks! Sebastian ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +

Re: [Wikidata] Wikidata ontology

2016-04-30 Thread Markus Kroetzsch
. All in all, the basic encoding (with statements, references, and complex values represented by own RDF resources) is the same, but the syntactic details changed quite a bit between our original ISWC publication and the launch of the SPARQL service. Cheers, Markus -- Markus Kroetzsch Faculty

Re: [Wikidata] Multiple properties/identifiers for the same resource

2016-04-29 Thread Markus Kroetzsch
representing entity labels / IDs to users? Best, Julie ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dre

Re: [Wikidata] EKAW2016 - Call for Doctoral Consortium Papers

2016-05-05 Thread Markus Kroetzsch
) ___ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org

Re: [Wikidata] EKAW2016 - Call for Doctoral Consortium Papers

2016-05-05 Thread Markus Kroetzsch
On 05.05.2016 22:17, Lydia Pintscher wrote: On Thu, May 5, 2016 at 9:47 PM Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: Dear Andrea, It does not give a good impression if your first and only message to an email lis

[Wikidata] SPARQL service timeouts

2016-04-18 Thread Markus Kroetzsch
had to IP-block an RDF crawler from one of my sites after it had ignored robots.txt completely). -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://korrekt.org/ ___ Wikidata mailing list Wikidata

[Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-19 Thread Markus Kroetzsch
All of us are at TU Dresden. Complex statistics are computed with Wikidata Toolkit. Live query results come from the Wikidata SPARQL Query Service. Enjoy, Markus -- Markus Kroetzsch Faculty of Computer Science Technische Universität Dresden +49 351 463 38486 http://k

Re: [Wikidata] SPARQL service timeouts

2016-04-18 Thread Markus Kroetzsch
On 18.04.2016 21:56, Markus Kroetzsch wrote: Thanks, the dashboard is interesting. I am trying to run this query: SELECT ?subC ?supC WHERE { ?subC p:P279/ps:P279 ?supC } It is supposed to return a large result set. But I am only running it once per week. It used to work fine, but today I

Re: [Wikidata] SPARQL service timeouts

2016-04-18 Thread Markus Kroetzsch
On 18.04.2016 22:21, Markus Kroetzsch wrote: On 18.04.2016 21:56, Markus Kroetzsch wrote: Thanks, the dashboard is interesting. I am trying to run this query: SELECT ?subC ?supC WHERE { ?subC p:P279/ps:P279 ?supC } It is supposed to return a large result set. But I am only running it once

Re: [Wikidata] SQID: the new "Wikidata classes and properties browser"

2016-04-21 Thread Markus Kroetzsch
s, Joachim -Ursprüngliche Nachricht- Von: Wikidata [mailto:wikidata-boun...@lists.wikimedia.org] Im Auftrag von Markus Kroetzsch Gesendet: Dienstag, 19. April 2016 21:45 An: Discussion list for the Wikidata project. Betreff: [Wikidata] SQID: the new "Wikidata classes and properties b

Re: [Wikidata] Grammatical display of units

2016-07-28 Thread Markus Kroetzsch
Hi Stas, Good point. Could we not just have a monolingual text string property that gives the preferred writing of the unit when used after a number? I don't think the plural/singular issue is very problematic, since you would have plural almost everywhere, even for "1.0 metres". So maybe we

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
On 02.08.2016 13:11, Ghislain ATEMEZING wrote: Thanks Yuri. I will try to define a kind a metric for those having a number of wikipedia entries. For example, a person with 127 entries would be "famous" while another with just 10 is not "famous"... Side remark @Stas: it could be very helpful

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
be tricky. Currently, the RDF data about each item only depends on the content of this item's Wikidata page. The number of inlinks depends on other Wikidata pages, and therefore it is much more work to keep it up to date when there are edits. Markus On Aug 2, 2016 10:41 PM, "M

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
On 03.08.2016 02:49, Stas Malyshev wrote: Hi! Oh, there is a little misunderstanding here. I have not suggested to create a property "number of sitelinks in this document". What I propose instead is to create a property "number of sitelinks for the document associated with this entity". The

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
On 03.08.2016 02:51, Stas Malyshev wrote: Hi! Is there a way we could have more than just the number of language links? Eg number of incoming links from other wikipedia pages? If we implement T129046 we can have any page props we want to :) Of course, adding them for the whole DB would

Re: [Wikidata] Render sparql queries using the Histropedia timeline engine

2016-08-11 Thread Markus Kroetzsch
On 11.08.2016 13:40, Daniel Kinzler wrote: Hi Navino! Thank you for your awesome work! Since this has caused some confusion again recently, I want to caution you about a major gotcha regarding dates in RDF and JSON: they use different conventions to represent years BCE. I just updated our JSON

Re: [Wikidata] (Ab)use of "deprecated"

2016-08-11 Thread Markus Kroetzsch
On 11.08.2016 18:45, Andra Waagmeester wrote: On Thu, Aug 11, 2016 at 4:15 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: has a statement "population: 20,086 (point in time: 2011)" that is confirmed by a r

Re: [Wikidata] Breaking change in JSON serialization?

2016-08-11 Thread Markus Kroetzsch
Dear all, There have been some interesting discussions about breaking changes here, but before we continue in this direction, let me repeat that I did not start this thread to define what is a "breaking change" in JSON. There are JSON libraries that define this in a strict way (siding with

[Wikidata] (Ab)use of "deprecated"

2016-08-11 Thread Markus Kroetzsch
Similar problems occur for the mayor of this town. I hope there is no deeper confusion in the community regarding this intended use of "preferred" and "deprecated". Most other items are using it correctly, it seems. The fact that it occurs in a showcase item is still making me a bit c

Re: [Wikidata] Info box proposal

2016-08-03 Thread Markus Kroetzsch
Mh. Is this actually leading anywhere? I can see both views, but there is a danger that things are getting non-constructive here. A particular issue in my view is playing the "Wikipedia-vs-Wikidata" card. I don't see things in this way, and I hope most Wikipedia and Wikidata editors don't

Re: [Wikidata] Breaking change in JSON serialization?

2016-08-04 Thread Markus Kroetzsch
On 04.08.2016 11:45, Lydia Pintscher wrote: On Thu, Aug 4, 2016 at 9:27 AM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de> wrote: Hi, It seems that some changes have been made to the JSON serialization recently: https://github.com/Wikidata/Wikidata-Toolkit/issues/237 Could somebod

[Wikidata] Breaking change in JSON serialization?

2016-08-04 Thread Markus Kroetzsch
? Are we ever going to get email notifications of API changes implemented by the team rather than having to fix the damage after they happened? Markus -- Prof. Dr. Markus Kroetzsch Knowledge-Based Systems Group Faculty of Computer Science TU Dresden +49 351 463 38486 https://iccl.inf.tu-dresden.de

Re: [Wikidata] (Ab)use of "deprecated"

2016-08-14 Thread Markus Kroetzsch
On 12.08.2016 17:24, Jean-Luc Léger wrote: On 2016-08-11 22:29, Markus Kroetzsch wrote: On 11.08.2016 18:45, Andra Waagmeester wrote: On Thu, Aug 11, 2016 at 4:15 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dres

Re: [Wikidata] Breaking change in JSON serialization?

2016-08-04 Thread Markus Kroetzsch
aying that it should. Markus On 04.08.2016 16:48, Daniel Kinzler wrote: Hi Markus! I would like to elaborate a little on what Lydia said. Am 04.08.2016 um 09:27 schrieb Markus Kroetzsch: It seems that some changes have been made to the JSON serialization recently: https://github.com/Wik

Re: [Wikidata] Wikidata query performance paper

2016-08-06 Thread Markus Kroetzsch
Hi Aidan, Thanks, very interesting, though I have not read the details yet. I wonder if you have compared the actual query results you got from the different stores. As far as I know, Neo4J actually uses a very idiosyncratic query semantics that is neither compatible with SPARQL (not even on

Re: [Wikidata] Wikidata query performance paper

2016-08-08 Thread Markus Kroetzsch
On 07.08.2016 22:58, Stas Malyshev wrote: Hi! the area for a long time). I guess the more difficult question then, is, which RDF/SPARQL implementation to choose (since any such implementation should cover as least points 1, 2 and 4 in a similar way), which in turn reduces down to the

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
On 02.08.2016 20:06, Daniel Kinzler wrote: Am 02.08.2016 um 18:41 schrieb Andrew Gray: I'd agree with both interpretations - the majority of people in Wikidata are Using the existence of Wikipedia articles as a threshold, as suggested, seems a pretty good test - it's flawed, of course, but it's

Re: [Wikidata] An attribute for "famous person"

2016-08-02 Thread Markus Kroetzsch
On 02.08.2016 20:59, Daniel Kinzler wrote: Am 02.08.2016 um 20:19 schrieb Markus Kroetzsch: Oh, there is a little misunderstanding here. I have not suggested to create a property "number of sitelinks in this document". What I propose instead is to create a property "numb

Re: [Wikidata] NLP text corpus annotated with Wikidata entities?

2017-02-05 Thread Markus Kroetzsch
On 05.02.2017 15:47, Samuel Printz wrote: Hello everyone, I am looking for a text corpus that is annotated with Wikidata entites. I need this for the evaluation of an entity linking tool based on Wikidata, which is part of my bachelor thesis. Does such a corpus exist? Ideal would be a corpus

Re: [Wikidata] Resolver for Sqid?

2017-02-16 Thread Markus Kroetzsch
Hi Joachim, Thanks for the suggestion. We are at it. Preview: http://tools.wmflabs.org/sqid/dev/#/view?quick=VIAF:12307054 But which of these special keys (like "VIAF") should the service support? (note that there are 1100+ external id properties ...) The other syntax with

Re: [Wikidata] Resolver for Sqid?

2017-02-17 Thread Markus Kroetzsch
.php?quick=VIAF:12307054=sqid https://tools.wmflabs.org/wikidata-todo/resolver.php?quick=VIAF:12307054=reasonator On Thu, Feb 16, 2017 at 10:32 PM Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: Hi Joachim, Thanks

[Wikidata] Wikidata Toolkit 0.7.0 released

2016-08-05 Thread Markus Kroetzsch
/releases [4] https://github.com/Wikidata/Wikidata-Toolkit/ [5] http://wikidata.github.io/Wikidata-Toolkit/ -- Prof. Dr. Markus Kroetzsch Knowledge-Based Systems Group Faculty of Computer Science TU Dresden +49 351 463 38486 https://iccl.inf.tu-dresden.de/web/KBS/en

Re: [Wikidata] A property to exemplify SPARQL queries associated witha property

2016-08-25 Thread Markus Kroetzsch
On 25.08.2016 07:40, Gerard Meijssen wrote: Hoi, For many categories we have exactly that in Reasonator. This functionality is based on "is a list of". Yes, I was thinking of this when making this proposal. The thing is that "is a list of" is not a very powerful way to describe lists. It can

Re: [Wikidata] SPARQL query increased timeouts?

2016-09-05 Thread Markus Kroetzsch
. I'll dig a bit deeper... Thanks for the patience! [1] https://grafana.wikimedia.org/dashboard/db/wikidata-query-service [2] https://ganglia.wikimedia.org/latest/?r=month=Wikidata+Query+Service+eqiad On Sun, Sep 4, 2016 at 2:26 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de> wrote: Hi,

Re: [Wikidata] Item Label from ItemId

2016-09-01 Thread Markus Kroetzsch
On 31.08.2016 22:14, Sumit Asthana wrote: Hi, I've written a code to scrape Wikidata dump following Wikidata Toolkit examples. In processItemDocument, I have extracted the target entityId for the property 'instanceof' for the current item. However I'm unable to find a way to get the label of

Re: [Wikidata] List of WP-languages and language short code

2016-09-08 Thread Markus Kroetzsch
On 07.09.2016 21:48, Jan Macura wrote: Hi all, In a "[Wikidata] How many languages supports Wikibase/Wikidata?" thread beginning May 26, Jan Macura writes Hi all, looking into [1] I read that Wikidata supports 358 languages. Is it still true? For example, I tried to add

[Wikidata] SPARQL query increased timeouts?

2016-09-04 Thread Markus Kroetzsch
: SELECT ?cl ?clLabel ?c WHERE { { SELECT ?cl (count(*) as ?c) WHERE { ?i wdt:P31 ?cl } GROUP BY ?cl } SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . } } [2] https://tools.wmflabs.org/sqid/#/status -- Prof. Dr. Markus Kroetzsch Knowledge-Based Systems Gro

[Wikidata] SPARQL power users and developers

2016-09-30 Thread Markus Kroetzsch
we will need to get clearance before sharing any findings with the public. We hope, however, that there won't be any reservations against publishing non-identifying information. -- Prof. Dr. Markus Kroetzsch Knowledge-Based Systems Group Faculty of Computer Science TU Dresden +49 351 463 38486

Re: [Wikidata] Greater than 400 char limit for Wikidata string data types

2016-09-19 Thread Markus Kroetzsch
On 19.09.2016 18:12, Lydia Pintscher wrote: On Mon, Sep 19, 2016 at 6:19 AM, Denny Vrandečić wrote: Can you figure out what a good limit would be for these two use cases? I.e. what would support 99%, 99.9%, and 100%? Yes this would be extremely helpful. In general I

Re: [Wikidata] Deleting properties / items in test.wikidata.org

2016-09-16 Thread Markus Kroetzsch
Hi, I don't think you need to worry at all about cluttering test.wikidata.org. I guess it is purged regularly anyway. Best, Markus On 14.09.2016 20:32, Legoktm wrote: Hi, On 09/08/2016 08:54 AM, Loic Dachary wrote: Hi, But I was not able to figure out how to remove them afterwards, to

Re: [Wikidata] Greater than 400 char limit for Wikidata string data types

2016-09-16 Thread Markus Kroetzsch
On 13.09.2016 11:39, Sebastian Burgstaller wrote: Hi all, I think this topic might have been discussed many months ago. For certain data types in the chemical compound space (P233, canonical smiles, P2017 isomeric smiles and P234 Inchi key) a higher character limit than 400 would be really

Re: [Wikidata] SPARQL query increased timeouts?

2016-09-07 Thread Markus Kroetzsch
On 07.09.2016 03:05, Stas Malyshev wrote: Hi! I bet wikibase:label has to be reimplemented in some other way to prove efficient... Yes, label service may be inefficient sometimes. I'll look into how it can be improved. However, the query without the counting but with the labels included

Re: [Wikidata] Aggregate info on Wikidata items

2016-08-27 Thread Markus Kroetzsch
On 27.08.2016 07:18, Sumit Asthana wrote: Hi, I'm trying to use offline wikidata dump but when I run an example from Wikidata Toolkit - EntityStatisticsProcessor

Re: [Wikidata] SPARQL power users and developers

2016-09-30 Thread Markus Kroetzsch
handled by Varnish. Also, NodeJS queries could set the user agent string. On Fri, Sep 30, 2016 at 10:44 AM Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: On 30.09.2016 16:18, Andra Waagmeester wrote: > Wo

Re: [Wikidata] SPARQL power users and developers

2016-09-30 Thread Markus Kroetzsch
ine), but in the logs it will still show up only as a single query among millions. Best, Markus On Fri, Sep 30, 2016 at 4:44 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz...@tu-dresden.de>> wrote: On 30.09.2016 16:18, Andra Waagmeester wrote:

Re: [Wikidata] SPARQL power users and developers

2016-09-30 Thread Markus Kroetzsch
ld look for comments of this form without knowing all the tools upfront. Of course, this is just a hint in any case, since one could always use the same comment in any manually written query. Best regards, Markus On Fri, Sep 30, 2016 at 4:00 PM, Markus Kroetzsch <markus.kroetz...@tu-dresden.d

Re: [Wikidata] [Analytics] SPARQL power users and developers

2016-10-04 Thread Markus Kroetzsch
Hi again, The solutions discussed here seem to be quite a bit more general than what I was thinking about. Of course it would be nice to have a uniform, cross-client way to indicate tools in any MW Web service or API, but this is a slightly bigger (and probably more long-term) goal than what

Re: [Wikidata] Wikidata ontology

2017-01-05 Thread Markus Kroetzsch
Hi Rüdiger, Daniel refers to several independent aspects of Wikidata: (1) The ontology is not separated from the data. Schematic information is mostly managed by encoding it in data as well. Therefore, if you want some of it (but not the rest), then some extraction will be necessary. The

Re: [Wikidata] I'm calling it. We made it ;-)

2017-01-01 Thread Markus Kroetzsch
Very nice! Also great to see journalists getting their hands dirty in some raw data. Happy New Year everyone :-) Markus On 31.12.2016 11:57, Lydia Pintscher wrote: Folks, We're now officially mainstream ;-)

Re: [Wikidata] Wikidata ontology

2017-01-07 Thread Markus Kroetzsch
f you find little use in it, that's ok too. Nevertheless, we should try to fix the modelling errors there, since they will affect many other people's Wikidata experience. Cheers, Markus On 7 January 2017 at 10:39, Markus Kroetzsch <markus.kroetz...@tu-dresden.de <mailto:markus.kroetz.

Re: [Wikidata] Wikidata ontology

2017-01-09 Thread Markus Kroetzsch
On 09.01.2017 12:55, Gerard Meijssen wrote: Hoi, It is in the logic. When a king is a monarch and a monarch is a politician I am fine. But when people insist that a "King of Iberia" is a subclass it does not make sense. People hold the office of and it is singular. When such things result in

Re: [Wikidata] Wikidata ontology

2017-01-07 Thread Markus Kroetzsch
On 06.01.2017 18:24, Thomas Douillard wrote: Same entity can be treated both as class and individual This is valid for OWL as well. Yes, and since Wikidata does not feature very powerful ontological statements, you could treat this like in OWL 2 DL semantically as well, i.e., a weak

Re: [Wikidata] SPARQL service: "too many requests"

2016-12-19 Thread Markus Kroetzsch
On 19.12.2016 07:04, Stas Malyshev wrote: Hi! in SQID, I now frequently see WDQS responses of type 429 when trying to load a page (doing this will usually issue a few dozen queries for larger pages). How many SPARQL queries are users allowed to ask in a certain time and how should tools

Re: [Wikidata] Linked data fragment enabled on the Query Service

2016-12-21 Thread Markus Kroetzsch
Hi Stas, Thanks for the info. Yes, all my comments apply to the ldf demo. I understand that it is a demo, and what the motivation is on paper, but if it returns incorrect results, then it is of little use. You can get those without any load on server or client ;-). Also, there should be

Re: [Wikidata] Can LDF scale?

2016-12-23 Thread Markus Kroetzsch
On 23.12.2016 01:29, Stas Malyshev wrote: ... I don't think we plan to invest more time than we already did into it. The endpoint is up now, we don't really plan to do anything additional with it - it's for the users now to see if it's useful. We'll be watching to see whether it is not

Re: [Wikidata] Can LDF scale? (Was: Linked data fragment enabled on the Query Service)

2016-12-23 Thread Markus Kroetzsch
On 23.12.2016 01:16, Stas Malyshev wrote: Hi! So I did some light benchmarking, and it looks like a single server can do 700 to 800 rps for TPF queries without significant rise in the load (which is understandable since it's almost all IO). Single request median time seems to be around 150ms

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