-
Hancock-Beaulieu, M.; Walker, S.: ¬An evaluation of automatic query expansion in an online library catalogue (1992)
0.52
0.51948667 = sum of:
0.51948667 = product of:
0.90910167 = sum of:
0.14938918 = weight(abstract_txt:query in 3731) [ClassicSimilarity], result of:
0.14938918 = score(doc=3731,freq=2.0), product of:
0.2369893 = queryWeight, product of:
1.2924834 = boost
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.03856556 = queryNorm
0.6303625 = fieldWeight in 3731, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.09375 = fieldNorm(doc=3731)
0.11948918 = weight(abstract_txt:factors in 3731) [ClassicSimilarity], result of:
0.11948918 = score(doc=3731,freq=1.0), product of:
0.25728336 = queryWeight, product of:
1.3466864 = boost
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.03856556 = queryNorm
0.46442637 = fieldWeight in 3731, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.09375 = fieldNorm(doc=3731)
0.31654724 = weight(abstract_txt:expansion in 3731) [ClassicSimilarity], result of:
0.31654724 = score(doc=3731,freq=2.0), product of:
0.39096844 = queryWeight, product of:
1.6600894 = boost
6.106756 = idf(docFreq=268, maxDocs=44421)
0.03856556 = queryNorm
0.8096491 = fieldWeight in 3731, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.106756 = idf(docFreq=268, maxDocs=44421)
0.09375 = fieldNorm(doc=3731)
0.32367605 = weight(abstract_txt:affecting in 3731) [ClassicSimilarity], result of:
0.32367605 = score(doc=3731,freq=1.0), product of:
0.49995744 = queryWeight, product of:
1.8772718 = boost
6.905677 = idf(docFreq=120, maxDocs=44421)
0.03856556 = queryNorm
0.6474072 = fieldWeight in 3731, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
6.905677 = idf(docFreq=120, maxDocs=44421)
0.09375 = fieldNorm(doc=3731)
0.5714286 = coord(4/7)
-
Efthimiadis, E.N.: Query expansion (1996)
0.52
0.51653224 = sum of:
0.51653224 = product of:
1.2052419 = sum of:
0.12920775 = weight(abstract_txt:performance in 4915) [ClassicSimilarity], result of:
0.12920775 = score(doc=4915,freq=1.0), product of:
0.22374803 = queryWeight, product of:
1.2558571 = boost
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.03856556 = queryNorm
0.5774699 = fieldWeight in 4915, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.125 = fieldNorm(doc=4915)
0.34499952 = weight(abstract_txt:query in 4915) [ClassicSimilarity], result of:
0.34499952 = score(doc=4915,freq=6.0), product of:
0.2369893 = queryWeight, product of:
1.2924834 = boost
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.03856556 = queryNorm
1.4557599 = fieldWeight in 4915, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.125 = fieldNorm(doc=4915)
0.7310346 = weight(abstract_txt:expansion in 4915) [ClassicSimilarity], result of:
0.7310346 = score(doc=4915,freq=6.0), product of:
0.39096844 = queryWeight, product of:
1.6600894 = boost
6.106756 = idf(docFreq=268, maxDocs=44421)
0.03856556 = queryNorm
1.8698046 = fieldWeight in 4915, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
6.106756 = idf(docFreq=268, maxDocs=44421)
0.125 = fieldNorm(doc=4915)
0.42857143 = coord(3/7)
-
Turtle, H.; Flood, J.: Query evaluation : strategies and optimizations (1995)
0.51
0.51406884 = sum of:
0.51406884 = product of:
1.199494 = sum of:
0.18272734 = weight(abstract_txt:performance in 4155) [ClassicSimilarity], result of:
0.18272734 = score(doc=4155,freq=2.0), product of:
0.22374803 = queryWeight, product of:
1.2558571 = boost
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.03856556 = queryNorm
0.8166657 = fieldWeight in 4155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.125 = fieldNorm(doc=4155)
0.14084546 = weight(abstract_txt:query in 4155) [ClassicSimilarity], result of:
0.14084546 = score(doc=4155,freq=1.0), product of:
0.2369893 = queryWeight, product of:
1.2924834 = boost
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.03856556 = queryNorm
0.5943115 = fieldWeight in 4155, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.125 = fieldNorm(doc=4155)
0.8759212 = weight(abstract_txt:optimization in 4155) [ClassicSimilarity], result of:
0.8759212 = score(doc=4155,freq=2.0), product of:
0.6361119 = queryWeight, product of:
2.1175194 = boost
7.7894444 = idf(docFreq=49, maxDocs=44421)
0.03856556 = queryNorm
1.3769922 = fieldWeight in 4155, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.7894444 = idf(docFreq=49, maxDocs=44421)
0.125 = fieldNorm(doc=4155)
0.42857143 = coord(3/7)
-
Hancock-Beaulieu, M.; Fieldhouse, M.; Do, T.: ¬An evaluation of interactive query expansion in an online library catalogue with a graphical user interface (1995)
0.45
0.44974187 = sum of:
0.44974187 = product of:
0.7870482 = sum of:
0.09690581 = weight(abstract_txt:performance in 1734) [ClassicSimilarity], result of:
0.09690581 = score(doc=1734,freq=1.0), product of:
0.22374803 = queryWeight, product of:
1.2558571 = boost
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.03856556 = queryNorm
0.43310243 = fieldWeight in 1734, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.619759 = idf(docFreq=1189, maxDocs=44421)
0.09375 = fieldNorm(doc=1734)
0.18296362 = weight(abstract_txt:query in 1734) [ClassicSimilarity], result of:
0.18296362 = score(doc=1734,freq=3.0), product of:
0.2369893 = queryWeight, product of:
1.2924834 = boost
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.03856556 = queryNorm
0.7720333 = fieldWeight in 1734, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.09375 = fieldNorm(doc=1734)
0.11948918 = weight(abstract_txt:factors in 1734) [ClassicSimilarity], result of:
0.11948918 = score(doc=1734,freq=1.0), product of:
0.25728336 = queryWeight, product of:
1.3466864 = boost
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.03856556 = queryNorm
0.46442637 = fieldWeight in 1734, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.09375 = fieldNorm(doc=1734)
0.38768962 = weight(abstract_txt:expansion in 1734) [ClassicSimilarity], result of:
0.38768962 = score(doc=1734,freq=3.0), product of:
0.39096844 = queryWeight, product of:
1.6600894 = boost
6.106756 = idf(docFreq=268, maxDocs=44421)
0.03856556 = queryNorm
0.99161357 = fieldWeight in 1734, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
6.106756 = idf(docFreq=268, maxDocs=44421)
0.09375 = fieldNorm(doc=1734)
0.5714286 = coord(4/7)
-
Bhogal, J.; Macfarlane, A.; Smith, P.: ¬A review of ontology based query expansion (2007)
0.40
0.39707774 = sum of:
0.39707774 = product of:
0.92651474 = sum of:
0.25874963 = weight(abstract_txt:query in 1919) [ClassicSimilarity], result of:
0.25874963 = score(doc=1919,freq=6.0), product of:
0.2369893 = queryWeight, product of:
1.2924834 = boost
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.03856556 = queryNorm
1.0918199 = fieldWeight in 1919, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.754492 = idf(docFreq=1039, maxDocs=44421)
0.09375 = fieldNorm(doc=1919)
0.11948918 = weight(abstract_txt:factors in 1919) [ClassicSimilarity], result of:
0.11948918 = score(doc=1919,freq=1.0), product of:
0.25728336 = queryWeight, product of:
1.3466864 = boost
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.03856556 = queryNorm
0.46442637 = fieldWeight in 1919, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.9538813 = idf(docFreq=851, maxDocs=44421)
0.09375 = fieldNorm(doc=1919)
0.54827595 = weight(abstract_txt:expansion in 1919) [ClassicSimilarity], result of:
0.54827595 = score(doc=1919,freq=6.0), product of:
0.39096844 = queryWeight, product of:
1.6600894 = boost
6.106756 = idf(docFreq=268, maxDocs=44421)
0.03856556 = queryNorm
1.4023535 = fieldWeight in 1919, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
6.106756 = idf(docFreq=268, maxDocs=44421)
0.09375 = fieldNorm(doc=1919)
0.42857143 = coord(3/7)