The fuller name, Okapi BM25, includes the name of the first system to use it, which was the Okapi information retrieval system, implemented at London's City University[1] in the 1980s and 1990s

[7] It was initially available for download from its home at the SourceForge web site

NOTE: ACM DL title omits the trailing word Research; the project site and arXiv include it

1 200 OK Date: Thu, 02 Jul 2026 17:06:57 GMT Content-Type: text/html; charset=utf-8 Vary: X-PJAX, X-PJAX-Container, Turbo-Visit, Turbo-Frame, X-Requested-With, Sec-Fetch-Site,Accept-Encoding, Accept, X-Requested-With ETag: W/"5c10b5686e0c159df9d5da5670da3dcd" Cache-Control: max-age=0, private, must-revalidate Strict

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Each of the pins is associated with a net , usually by name or number

A free site is a site that is not occupied by any component

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[ 5 ] Media queries allow the page to use different CSS style rules based on characteristics of the device the site is being displayed on, e

Modern online video platforms are often coupled up with embedded online video analytics providing video publishers with detailed insights into video performance: the total number of video views, impressions, and unique views; video watch time, stats on user location, visits, and behavior on the site

Standard [ edit ] A site owner wishing to give instructions to web robots places a text file called robots

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Background of the problem [ edit ] Prior to SNI, when making a TLS connection, the client had no way to specify which site it was trying to connect to

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[ citation needed ] Any activity involving posting short messages can be classified as microblogging although it is usually not considered a microblogging "site" or "service" if it is a secondary, rather than principal service, provided there

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