Wikidata-tech January 2017

wikidata-tech@lists.wikimedia.org

7 participants
5 discussions

Developer Wishlist Survey: propose your ideas
by Srishti Sethi 30 Jan '17

30 Jan '17

That's right! At the Wikimedia Developer Summit, we decided to organize a Developer Wishlist Survey, and here we go: https://www.mediawiki.org/wiki/Developer_Wishlist The Wikimedia technical community seeks input from developers for developers, to create a high-profile list of desired improvements. The scope of the survey includes the MediaWiki platform (core software, APIs, developer environment, enablers for extensions, gadgets, templates, bots, dumps), the Wikimedia server infrastructure, the contribution process, and documentation. The best part: we want to have the results published by Wednesday, February 15. Yes, in a month, to have a higher chance to influence the Wikimedia Foundation annual plan FY 2017-18. There's no time to lose. *Propose your ideas before the end of January, * either by pushing existing tasks in Phabricator or by creating new ones. You can find instructions on the wiki page <https://www.mediawiki.org/wiki/Developer_Wishlist>. Questions and feedback are welcome especially on the related Talk page. The voting phase is expected to start on February 6 (tentative). Watch this space (or even better, the wiki page). Cheers, Srishti Sethi Developer Advocate, Technical Collaboration team Wikimedia Foundation https://www.mediawiki.org/wiki/User:SSethi_(WMF)

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Re: [Wikidata-tech] Trailing BIND-Clause in SPARQL-queries
by Adrian Bielefeldt 16 Jan '17

16 Jan '17

I can confirm that, just had a chat at RDF4JUsers <https://groups.google.com/forum/#%21topic/rdf4j-users/p-uqdjgGMHs> where I was told that: "In terms of getting the query to parse, why not just reorder the BIND() to the front of the group? This is what blazegraph is doing internally. " So you guessed right (and we are going to treat those queries the same way). Thanks and greetings, Adrian > Hi! > > On 1/14/17 9:23 AM, Adrian Bielefeldt wrote: >> I was wondering if anybody could help me understand why (and how) this >> query: >> >> SELECT DISTINCT ?item >> WHERE >> { ?tree0 wdt:P31 ?item . BIND (wd:Q146 AS ?tree0) } >> >> is being accepted by query.wikidata.org. > Probably Blazegraph engine considers it analogous with the query having > the bind in front, or maybe optimization reorders it. > >> At the moment we are parsing them using OpenRDF, which fails (as far > as I can see understandably) at parsing this query. > > Well, the standard does say you can not use a variable in BIND that was > previously used, and I guess OpenRDF parser chooses to be more strict > than Blazegraph.

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Trailing BIND-Clause in SPARQL-queries
by Adrian Bielefeldt 15 Jan '17

15 Jan '17

Hello everyone, I'm writing on behalf of a Wikidata Research Project <https://meta.wikimedia.org/wiki/Research:Understanding_Wikidata_Queries> into SPARQL-Queries. I was wondering if anybody could help me understand why (and how) this query: SELECT DISTINCT ?item WHERE { ?tree0 wdt:P31 ?item . BIND (wd:Q146 AS ?tree0) } is being accepted by query.wikidata.org. The reason I'm asking is that we are trying to parse the queries from the wikidata logs and analyze them for different features. At the moment we are parsing them using OpenRDF, which fails (as far as I can see understandably) at parsing this query. Greetings, Adrian

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Making items appear ahead of aliases when searching for entities
by Miguel Paraz 10 Jan '17

10 Jan '17

Hi, I found that if I have items, the first one matching the alias is found, instead of a later one which matches the label. Example: Q1 Label=SomethingElse, Alias=ABC Q2 Label=ABC Would it be possible to make Q2 appear first? This is most useful if I only ask for one entity, thus this would be the best match. Thanks! Cheers Miguel

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Searching through API and ignoring diacritics
by Miguel Paraz 06 Jan '17

06 Jan '17

Hi! I'm starting to build my own Wikidata installation. Thanks for the great work on this project! One of my needs is to do a search and match ignoring diacritic marks. For example: a search for "Comite" matching "Comité". Is it feasible to change the Wikidata code to support this as an option? Could you point me to the right place to make the change? Thanks! Regards, Miguel

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Wikidata-tech January 2017