Hofstede, M.: Zoeken in PiCarta : de proef op de som (1998)
0.03
0.031965148 = product of:
0.09589544 = sum of:
0.09589544 = weight(_text_:electronic in 4735) [ClassicSimilarity], result of:
0.09589544 = score(doc=4735,freq=4.0), product of:
0.19623034 = queryWeight, product of:
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.05019314 = queryNorm
0.48868814 = fieldWeight in 4735, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.0625 = fieldNorm(doc=4735)
0.33333334 = coord(1/3)
- Abstract
- The proliferation of electronic databases and reduced library collections require researchers to be familiar with an increasing range of bibliographical resources. To assist users in searching multiple databases the PICA network in the Netherlands has developed PiCarta as a single information source. The servie enables users to access bibliographical databases and electronic journals using Boolean logic, fuzzy operators, and subject weighting. The system is, however, dependent upon indexing methods used in original sources
