-
Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990)
0.02
0.019515803 = product of:
0.039031606 = sum of:
0.039031606 = product of:
0.07806321 = sum of:
0.07806321 = weight(_text_:r in 1816) [ClassicSimilarity], result of:
0.07806321 = score(doc=1816,freq=4.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.5172279 = fieldWeight in 1816, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.078125 = fieldNorm(doc=1816)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Efthimiadis, E.N.: Approaches to search formulation and query expansion in information systems : DRS, DBMS, ES (1992)
0.01
0.013799756 = product of:
0.027599512 = sum of:
0.027599512 = product of:
0.055199023 = sum of:
0.055199023 = weight(_text_:r in 3871) [ClassicSimilarity], result of:
0.055199023 = score(doc=3871,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.36573532 = fieldWeight in 3871, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.078125 = fieldNorm(doc=3871)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Michel, D.: Taxonomy of Subject Relationships (1997)
0.01
0.013799756 = product of:
0.027599512 = sum of:
0.027599512 = product of:
0.055199023 = sum of:
0.055199023 = weight(_text_:r in 5346) [ClassicSimilarity], result of:
0.055199023 = score(doc=5346,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.36573532 = fieldWeight in 5346, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.078125 = fieldNorm(doc=5346)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬A graphical interface for OKAPI : the design and evaluation of an online catalogue system with direct manipulation interaction for subject access (1994)
0.01
0.00965983 = product of:
0.01931966 = sum of:
0.01931966 = product of:
0.03863932 = sum of:
0.03863932 = weight(_text_:r in 1318) [ClassicSimilarity], result of:
0.03863932 = score(doc=1318,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.25601473 = fieldWeight in 1318, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0546875 = fieldNorm(doc=1318)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Beaulieu, M.; Payne, A.; Do, T.; Jones, S.: ENQUIRE Okapi project (1996)
0.01
0.0082798535 = product of:
0.016559707 = sum of:
0.016559707 = product of:
0.033119414 = sum of:
0.033119414 = weight(_text_:r in 3369) [ClassicSimilarity], result of:
0.033119414 = score(doc=3369,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.2194412 = fieldWeight in 3369, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.046875 = fieldNorm(doc=3369)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Rudolph, S.; Hemmje, M.: Visualisierung von Thesauri zur interaktiven Unterstüzung von visuellen Anfragen an Textdatenbanken (1994)
0.01
0.006899878 = product of:
0.013799756 = sum of:
0.013799756 = product of:
0.027599512 = sum of:
0.027599512 = weight(_text_:r in 2382) [ClassicSimilarity], result of:
0.027599512 = score(doc=2382,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.18286766 = fieldWeight in 2382, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0390625 = fieldNorm(doc=2382)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
Horch, A.; Kett, H.; Weisbecker, A.: Semantische Suchsysteme für das Internet : Architekturen und Komponenten semantischer Suchmaschinen (2013)
0.01
0.006899878 = product of:
0.013799756 = sum of:
0.013799756 = product of:
0.027599512 = sum of:
0.027599512 = weight(_text_:r in 4063) [ClassicSimilarity], result of:
0.027599512 = score(doc=4063,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.18286766 = fieldWeight in 4063, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0390625 = fieldNorm(doc=4063)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
-
ALA / Subcommittee on Subject Relationships/Reference Structures: Final Report to the ALCTS/CCS Subject Analysis Committee (1997)
0.00
0.004829915 = product of:
0.00965983 = sum of:
0.00965983 = product of:
0.01931966 = sum of:
0.01931966 = weight(_text_:r in 1800) [ClassicSimilarity], result of:
0.01931966 = score(doc=1800,freq=2.0), product of:
0.15092614 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.045593463 = queryNorm
0.12800737 = fieldWeight in 1800, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.02734375 = fieldNorm(doc=1800)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Type
- r
