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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
S-Class Information Retrieval
The empirically validated retrieval progression is BM25 then learned-sparse then dense then hybrid fusion with re-ranking
[7] It was initially available for download from its home at the SourceForge web site
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The earliest work was so-called " butterfly scheme " by Dyn, Levin and Gregory (1990), who extended the four-point interpolatory subdivision scheme for curves to a subdivision scheme for surfaces
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1 Background
2 Living will
3 Healthcare proxy
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3.1 Values-based directives
3.2 Psychiatric advance directives
3.2.1 Legal foundations
3.2.2 Clinical benefits
3.2.3 Barriers
4 Worldwide
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1 Background
2 Provisions
3 FATCA indicia
4 Revenue and cost
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4.1 Revenue
4.2 Implementation cost
5 Criticism
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5.1 Opposition
5.1.1 Congressional bills to repeal
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Standard [ edit ] A site owner wishing to give instructions to web robots places a text file called robots
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