Beghtol, C.: ¬L'¬efficacia del recupero (1993)
0.00
0.003707186 = product of:
0.014828744 = sum of:
0.014828744 = weight(_text_:information in 4018) [ClassicSimilarity], result of:
0.014828744 = score(doc=4018,freq=2.0), product of:
0.09556833 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.054440062 = queryNorm
0.1551638 = fieldWeight in 4018, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0625 = fieldNorm(doc=4018)
0.25 = coord(1/4)
- Abstract
- Proposes a new experimental methodology for evaluating the results of library research from the user's viewpoint. Illustrates the theory by comparing the efficacy of information retrieved from 2 document catalogues, identical except that one is alphabetical and the other numerical/verbal. The methodology utilises the concept of 3 dependent variables: 'promising references retrieved' by the researcher; 'documents read'; and 'documents cited'. Claims that the retrieval effectiveness of the techniques outlined compares favourably with that of W.S. Cooper's methodology
