Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992)
0.01
0.007921274 = product of:
0.055448912 = sum of:
0.01066521 = weight(_text_:information in 3871) [ClassicSimilarity], result of:
0.01066521 = score(doc=3871,freq=2.0), product of:
0.05498814 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.031323742 = queryNorm
0.19395474 = fieldWeight in 3871, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.078125 = fieldNorm(doc=3871)
0.044783704 = weight(_text_:retrieval in 3871) [ClassicSimilarity], result of:
0.044783704 = score(doc=3871,freq=4.0), product of:
0.094751656 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.031323742 = queryNorm
0.47264296 = fieldWeight in 3871, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=3871)
0.14285715 = coord(2/14)
- Abstract
- Discusses the ways in which systems and/or users formulate and reformulate searches in documents retrieval systems (DRS), database management systems (DBMS) and expert systems (ES). Concludes that query formulation and reformulation has been neglected in these fields
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval