Kaltenborn, K.-F.: Endnutzerrecherchen in der CD-ROM-Datenbank Medline : T.1: Evaluations- und Benutzerforschung über Nutzungscharakteristika, Bewertung der Rechercheergebnisse und künftige Informationsgewinnung; T.2: Evaluations- und Benutzerforschung über Recherchequalität und Nutzer-Computer/Datenbank-Interaktion (1991)
0.03
0.032759383 = product of:
0.06551877 = sum of:
0.06551877 = product of:
0.09827815 = sum of:
0.0050227973 = weight(_text_:s in 5105) [ClassicSimilarity], result of:
0.0050227973 = score(doc=5105,freq=4.0), product of:
0.04927764 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04532371 = queryNorm
0.101928525 = fieldWeight in 5105, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=5105)
0.093255356 = weight(_text_:t in 5105) [ClassicSimilarity], result of:
0.093255356 = score(doc=5105,freq=8.0), product of:
0.17854862 = queryWeight, product of:
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.04532371 = queryNorm
0.5222967 = fieldWeight in 5105, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.9394085 = idf(docFreq=2338, maxDocs=44218)
0.046875 = fieldNorm(doc=5105)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Source
- Nachrichten für Dokumentation. 42(1991) H.2, S.107-114. (T.1); 42(1991) H.3, S.177-190 (T.2)