Congrats! Goran S. Milovanović, PhD Data Scientist, Software Department Wikimedia Deutschland
------------------------------------------------ "It's not the size of the dog in the fight, it's the size of the fight in the dog." - Mark Twain ------------------------------------------------ On Wed, Jul 22, 2020 at 8:24 PM Tito Dutta <trulyt...@gmail.com> wrote: > Amazing indeed. Many congratulations. > > Thanks > Tito Dutta > > > On Wed, 22 Jul 2020 at 23:33, Guillaume Lederrey <gleder...@wikimedia.org> > wrote: > >> Hello all! >> >> We are happy to announce the availability of Wikimedia Commons Query >> Service (WCQS): https://wcqs-beta.wmflabs.org/. >> >> This is a beta SPARQL endpoint exposing the Structured Data on Commons >> (SDoC) dataset. This endpoint can federate with WDQS. More work is needed >> as we iterate on the service, but feel free to begin using the endpoint. >> Known limitations are listed below: >> >> * The service is a beta endpoint that is updated via weekly dumps. Some >> caveats include limited performance, expected downtimes, and no interface, >> naming, or backward compatibility stability guarantees. >> * The service is hosted on Wikimedia Cloud Services, with limited >> resources and limited monitoring. This means there may be random unplanned >> downtime. >> The data will be reloaded weekly from dumps. The service will be down >> during data reload. With the current amount of SDoC data, downtime will >> last approximately 4 hours, but this may increase as SDoC data grows. >> * Due to an issue with the dump format, the data currently only dates >> back to July 5th. We’re working on getting more up-to-date data and hope to >> have a solution soon. (https://phabricator.wikimedia.org/T258507 and >> https://phabricator.wikimedia.org/T258474) >> * The MediaInfo concept URIs (e.g. >> http://commons.wikimedia.org/entity/M37200540) are currently HTTP; we >> may change these to HTTPS in the near future. Please comment on T258590 if >> you have concerns about this change. >> >> * The service is restricted behind OAuth authentication, backed by >> Commons. You will need an account on Commons to access the service. This is >> so that we can contact abusive bots and/or users and block them selectively >> as a last resort if needed. >> * Please note that to correctly logout of the service, you need to >> use the logout link in WCQS - logging out of just Wikimedia Commons will >> not work for WCQS. This limitation will be lifted once we move to >> production. >> >> * No documentation on the service is available yet. In particular, no >> examples are provided yet. You can add your own examples at >> https://commons.wikimedia.org/wiki/Commons:SPARQL_query_service/queries/examples >> following the format at >> https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/queries/examples >> . >> * Please use the SPARQL template. Note that while there is currently >> a bug that doesn’t allow us to change the “Try it!” link endpoint, the >> examples will be displayed correctly on the WCQS GUI. >> >> * WCQS is a work in progress and some bugs are to be expected, especially >> related to generalizing WDQS to fit SDoC data. For example, current bugs >> include: >> * URI prefixes specific for SDoC data don’t yet work - you need to >> use full URIs if you want to query using them. Relations and Q items are >> defined by Wikidata’s URI prefixes, so they work correctly. >> * Autocomplete for SDoC items doesn’t work - without prefixes they’d >> be unusable anyway, but additional work will be required after we inject >> SDoC URI prefixes into WCQS GUI. >> * If you find any additional bugs or issues, please report them via >> Phabricator with the tag wikidata-query-service. >> * We do plan to move the service to production, but we don’t have a >> timeline on that yet. We want to emphasize that while we do expect a SPARQL >> endpoint to be part of a medium to long-term solution, it will only be part >> of that solution. Even once the service is production-ready, it will still >> have limitations in terms of timeouts, expensive queries, and federation. >> Some use cases will need to be migrated, over time, to better solutions - >> once those solutions exist. >> >> Have fun! >> >> Guillaume >> >> -- >> Guillaume Lederrey >> Engineering Manager, Search Platform >> Wikimedia Foundation >> UTC+1 / CET >> _______________________________________________ >> Wikidata 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 >
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