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

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

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

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

pl – recreates the hop path (path of links) to the specified URL from a completed crawl manifest_bundle

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server: ATS/9.2.13 x-content-type-options: nosniff content-language: en accept-ch: reporting-endpoints: csp-report-to-endpoint='/w/api.php?action=cspreport&format=json'; content-security-policy: script-src 'unsafe-eval' blob: 'self' meta.

(Top) 1 Representation Toggle Representation subsection 1.1 Choice of scaling factors 1.2 Exact values 1.3 Comparison with floating-point 2 Applications 3 Operations Toggle Operations subsection 3.1 Addition and subtraction 3.2

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server: ATS/9.2.13 x-content-type-options: nosniff content-language: en accept-ch: reporting-endpoints: csp-report-to-endpoint='/w/api.php?action=cspreport&format=json'; content-security-policy: script-src 'unsafe-eval' blob: 'self' meta.

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server: ATS/9.2.13 x-content-type-options: nosniff content-language: en accept-ch: reporting-endpoints: csp-report-to-endpoint='/w/api.php?action=cspreport&format=json'; content-security-policy: script-src 'unsafe-eval' blob: 'self' meta.

d(t,{$9:()=>u,BL:()=>a,CH:()=>g,Dl:()=>_,Fw:()=>y,PA:()=>h,Pl:()=>n,Pv:()=>k,Tb:()=>l,U2:()=>s,V1:()=>R,Wb:()=>x,bt:()=>b,cD:()=>v,d3:()=>w,dT:()=>c,eY:()=>p,fF:()=>f,hG:()=>i,k6:()=>o,nb:()=>m,o5:()=>d});const n="api-",i="addPageAction",s="addToTrace",o="addRelease",a="finished",c="interaction",u="log",d="noticeError

(Top) 1 History 2 Administration 3 Financing 4 Eligibility 5 Benefits and parts Toggle Benefits and parts subsection 5.1 Part A: Hospital/hospice insurance 5.2 Part B: Medical insurance 5.3 Part C: Medicare Advantage plans 5.4 Part

S-Class Information Retrieval The empirically validated retrieval progression is BM25 then learned-sparse then dense then hybrid fusion with re-ranking

to gain root access if it is writable by users other than root. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0120","sourceIdentifier":"cve@mitre.org","published":"1994-03

applets to execute arbitrary commands as the user of the applet. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0141","sourceIdentifier":"cve@mitre.org","published":"1996-03

2.5.1. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0109","sourceIdentifier":"cve@mitre.org","published":"1997-02-10T05:00:00.000","lastModified":"2026-06-16T21:47:36.407

1, when serving PL/SQL stored procedures, allows remote attackers to cause a denial of service via a long HTTP GET request

attackers to read any file. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0296","sourceIdentifier":"cve@mitre.org","published":"1998-02-01T05:00:00.000","lastModified":"2026

earlier does not properly prevent remote access to the daemon, which allows remote attackers to obtain sensitive system information. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE

cause a denial of service by modifying certain TCP/IP parameters. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1118","sourceIdentifier":"cve@mitre.org","published":"1998-03

users to gain privileges via \ NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1142","sourceIdentifier":"cve@mitre.org","published":"1992-05-27T04:00:00.000","lastModified":

command. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0301","sourceIdentifier":"cve@mitre.org","published":"1997-08-01T04:00:00.000","lastModified":"2026-06-16T21:48:06.370

attackers to add malicious NIS+ servers. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0300","sourceIdentifier":"cve@mitre.org","published":"1997-10-01T04:00:00.000

numbered UDP port, which may not be filtered since the standard port number is 111. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-0189","sourceIdentifier":"cve@mitre.org

library in NIS+ in Solaris 2.3 and 2.4 allows local users to gain root privileges. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1419","sourceIdentifier":"cve@mitre.org

(AdminSuite) 2.1 and 2.2 create lock files insecurely, which allows local users to gain root privileges. NIST National Vulnerability Database (NVD) -- services.nvd.nist.gov (CVE / CVSS / CPE). {"cve":{"id":"CVE-1999-1427","sourceIdentifier