Jump to content
MediaWiki

File:Second BM25 AB Test Analysis.pdf

From mediawiki.org
Go to page
next page →
next page →
next page →

Original file (1,275 ×ばつ 1,650 pixels, file size: 144 KB, MIME type: application/pdf, 17 pages)

This file is from Wikimedia Commons and may be used by other projects. The description on its file description page there is shown below.

Summary

DescriptionSecond BM25 AB Test Analysis.pdf
English: In order to assess the efficacy of BM25 in space-less language, Discovery’s Search team has decided to conduct a second A/B test in Chinese, Japanese and Thai Wikipedias. We observed that the test group that used per-field query builder with incoming links and pageviews as query-independent factors had a much better Zero Result Rate but slightly worse PaulScores, large decrease in clickthrough rate, and fewer users clicked on the first result first, which indicates that we are showing test group users worse results. However, longer dwell-time and fewer query reformulations show that test group users might actually like the results they are getting better than the control group in that respect. We recommend deploying BM25 for all wikis but not reindexing projects in space-less languages for now.
Date
Source Own work
Author CXie (WMF)

Licensing

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

copyright status<\/a>"}},"text\/plain":{"en":{"":"copyright status"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":50423863,\"id\":\"Q50423863\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P6216":"copyrighted<\/a>"}},"text\/plain":{"en":{"P6216":"copyrighted"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P6216 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">
inception<\/a>"}},"text\/plain":{"en":{"":"inception"}}},"{\"value\":{\"time\":\"+2017年01月06日T00:00:00Z\",\"timezone\":0,\"before\":0,\"after\":0,\"precision\":11,\"calendarmodel\":\"http:\\\/\\\/www.wikidata.org\\\/entity\\\/Q1985727\"},\"type\":\"time\"}":{"text\/html":{"en":{"P571":"6 January 2017"}},"text\/plain":{"en":{"P571":"6 January 2017"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P571 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

6 January 2017

source of file<\/a>"}},"text\/plain":{"en":{"":"source of file"}}},"{\"value\":{\"entity-type\":\"item\",\"numeric-id\":66458942,\"id\":\"Q66458942\"},\"type\":\"wikibase-entityid\"}":{"text\/html":{"en":{"P7482":"original creation by uploader<\/a>"}},"text\/plain":{"en":{"P7482":"original creation by uploader"}}}}" class="wbmi-entityview-statementsGroup wbmi-entityview-statementsGroup-P7482 oo-ui-layout oo-ui-panelLayout oo-ui-panelLayout-framed">

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current01:27, 7 January 2017 Thumbnail for version as of 01:27, 7 January 2017 1,275 ×ばつ 1,650, 17 pages (144 KB)CXie (WMF) User created page with UploadWizard

There are no pages that use this file.

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Short titleSecond BM25 A/B Test Analysis
AuthorChelsy Xie (Analysis & Report); Erik Bernhardson (Engineering); David Causse (Engineering & Review); Trey Jones (Engineering & Review); Mikhail Popov (Review); Deb Tankersley (Product Management)
Software usedLaTeX with hyperref package
Conversion programXeTeX 0.99996
Encryptedno
Page size612 x 792 pts (letter)
Version of PDF format1.5

AltStyle によって変換されたページ (->オリジナル) /