Search (2 results, page 1 of 1)
-
Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973)
0.01
0.014276439 = product of: 0.028552879 = sum of: 0.028552879 = product of: 0.057105757 = sum of: 0.057105757 = weight(_text_:22 in 5002) [ClassicSimilarity], result of: 0.057105757 = score(doc=5002,freq=2.0), product of: 0.18449724 = queryWeight, product of: 3.5018296 = idf(docFreq=3622, maxDocs=44218) 0.052685954 = queryNorm 0.30952093 = fieldWeight in 5002, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 3.5018296 = idf(docFreq=3622, maxDocs=44218) 0.0625 = fieldNorm(doc=5002) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Date
- 19. 3.1996 11:22:12
-
Rijsbergen, C.J. van: Information retrieval (1979)
0.01
0.006308052 = product of: 0.012616104 = sum of: 0.012616104 = product of: 0.025232209 = sum of: 0.025232209 = weight(_text_:m in 856) [ClassicSimilarity], result of: 0.025232209 = score(doc=856,freq=2.0), product of: 0.13110629 = queryWeight, product of: 2.4884486 = idf(docFreq=9980, maxDocs=44218) 0.052685954 = queryNorm 0.19245613 = fieldWeight in 856, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 2.4884486 = idf(docFreq=9980, maxDocs=44218) 0.0546875 = fieldNorm(doc=856) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Type
- m
Subjects
Classifications
- 029.7 1
- AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis 1
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme 1
- Z699 1