Rijsbergen, C.J. van: Information retrieval (1979)
0.03
0.029421462 = product of:
0.07355365 = sum of:
0.02970938 = weight(_text_:information in 856) [ClassicSimilarity], result of:
0.02970938 = score(doc=856,freq=14.0), product of:
0.08270773 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.047114085 = queryNorm
0.3592092 = fieldWeight in 856, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=856)
0.043844268 = weight(_text_:und in 856) [ClassicSimilarity], result of:
0.043844268 = score(doc=856,freq=12.0), product of:
0.10442211 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.047114085 = queryNorm
0.41987535 = fieldWeight in 856, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0546875 = fieldNorm(doc=856)
0.4 = coord(2/5)
- Classification
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
- LCSH
- Information storage and retrieval systems
- RSWK
- Information Retrieval
Datenverarbeitung / Information Retrieval
- RVK
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
- Subject
- Information Retrieval
Datenverarbeitung / Information Retrieval
Information storage and retrieval systems
