Kilgour, F.G.; Moran, B.B.; Barden, J.R.: Retrieval effectiveness of surname-title-word searches for known items by academic library users (1999)
0.00
0.0048636626 = product of:
0.0389093 = sum of:
0.0074839313 = weight(_text_:information in 3061) [ClassicSimilarity], result of:
0.0074839313 = score(doc=3061,freq=2.0), product of:
0.055122808 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.031400457 = queryNorm
0.13576832 = fieldWeight in 3061, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0546875 = fieldNorm(doc=3061)
0.031425368 = weight(_text_:retrieval in 3061) [ClassicSimilarity], result of:
0.031425368 = score(doc=3061,freq=4.0), product of:
0.09498371 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.031400457 = queryNorm
0.33085006 = fieldWeight in 3061, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=3061)
0.125 = coord(2/16)
- Abstract
- This article reports the findings of an experiment using a simulated title pages, author surnames, and title words, one-third of which were selected by each of the 3 authors, to determine the frequency of one-screen displays when used to search for known items in an implied Boolean retrieval system. Searches comprising surname plus one significant title word produced one-screen displays 78% of time; surname plus 2 words 97% of the time; and surname plus 3 words 98,5%. Three quarters of the significant words were nouns
- Source
- Journal of the American Society for Information Science. 50(1999) no.3, S.265-270
