Hi Stas, I guess its using an older index from a few weeks ago ? Doesn't seem to have the latest properties that have landed, but that's ok if the ES index isn't current yet and your just experimenting and getting feedback.
http://wikidata-wdsearch.wmflabs.org/w/index.php?search=partition&title=Special:Search&profile=advanced&fulltext=1&ns120=1&searchToken=25rdek6vt4n1ekkk5ht0ew0vv Didn't see https://www.wikidata.org/wiki/Property:P4653 On Mon, Dec 18, 2017 at 1:20 PM Stas Malyshev <[email protected]> wrote: > Hi! > > > Where can I learn about the internals of this jewel? (which search > > engine, what metrics are used to rank items, and so on). > > Thanks for your kind words. You can track it here: > > https://phabricator.wikimedia.org/T125500 > > and associated tasks like this one: > https://phabricator.wikimedia.org/T178851 > > which contain links to the patches. The search runs on the same > ElasticSearch we use for search on other sites, but the prototype has > specific code to deal with Wikidata specific data structure and the fact > that it is, unlike most other Wikimedia sites, multilingual by design. > > The rankings are hand-tuned now and kind of hard to read right now > (we're working on improving this), they are contained here: > https://phabricator.wikimedia.org/diffusion/EWBA/browse/master/repo/config/ > and specific functions we're using here: > > https://phabricator.wikimedia.org/diffusion/EWBA/browse/master/repo/config/ElasticSearchRescoreFunctions.php;4c6aa54e56c68ebd3543b23c88f52ae6f176a079$25 > > Basically it's a combination of match score (how well the string matches > the query), incoming link count, sitelink count and special boosts like > demoting the disambiguation pages. > -- > Stas Malyshev > [email protected] > > _______________________________________________ > Wikidata mailing list > [email protected] > https://lists.wikimedia.org/mailman/listinfo/wikidata >
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