Search (2 results, page 1 of 1)
-
×
author_ss:"Robertson, A.M."
-
×
author_ss:"Willett, P."
-
×
language_ss:"e"
-
×
theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
- Did you mean:
- author's%3a%22Missaoui%2c S.%22 2
- authors%3a%22Missaoui%2c S.%22 2
-
Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992)
0.00
0.001203219 = product of: 0.002406438 = sum of: 0.002406438 = product of: 0.004812876 = sum of: 0.004812876 = weight(_text_:s in 5689) [ClassicSimilarity], result of: 0.004812876 = score(doc=5689,freq=2.0), product of: 0.05008241 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.046063907 = queryNorm 0.09609913 = fieldWeight in 5689, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.0625 = fieldNorm(doc=5689) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Source
- Journal of information science. 18(1992) no.2, S.139-147
-
Robertson, A.M.; Willett, P.: Applications of n-grams in textual information systems (1998)
0.00
0.001203219 = product of: 0.002406438 = sum of: 0.002406438 = product of: 0.004812876 = sum of: 0.004812876 = weight(_text_:s in 4715) [ClassicSimilarity], result of: 0.004812876 = score(doc=4715,freq=2.0), product of: 0.05008241 = queryWeight, product of: 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.046063907 = queryNorm 0.09609913 = fieldWeight in 4715, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.0872376 = idf(docFreq=40523, maxDocs=44218) 0.0625 = fieldNorm(doc=4715) 0.5 = coord(1/2) 0.5 = coord(1/2)
- Source
- Journal of documentation. 54(1998) no.1, S.48-69