Search (2 results, page 1 of 1)
- Did you mean:
- object's%3a%22Knaurs lexikon von a-z%22 2
- object's%3a%22Knaurs lexicon von a-z%22 2
- objects%3a%22Knaurs lexikon von a-z%22 2
- object's%3a%22Knaurs lexikons von a-z%22 2
- objects%3a%22Knaurs lexicon von a-z%22 2
-
Tahani, V.: ¬A general conceptual framework for information retrieval systems (1972)
0.00
0.0010177437 = product of: 0.004070975 = sum of: 0.004070975 = product of: 0.012212924 = sum of: 0.012212924 = weight(_text_:a in 70) [ClassicSimilarity], result of: 0.012212924 = score(doc=70,freq=6.0), product of: 0.055348642 = queryWeight, product of: 1.153047 = idf(docFreq=37942, maxDocs=44218) 0.04800207 = queryNorm 0.22065444 = fieldWeight in 70, product of: 2.4494898 = tf(freq=6.0), with freq of: 6.0 = termFreq=6.0 1.153047 = idf(docFreq=37942, maxDocs=44218) 0.078125 = fieldNorm(doc=70) 0.33333334 = coord(1/3) 0.25 = coord(1/4)
- Abstract
- Develops a conceptual framework for information retrieval systems which admit of imprecision in the form of fuzziness in document characterization, retrieval rules, and file structures. A mathematical model for such systems, based on the theory of fuzzy sets, is introduced
-
Schabas, A.H.: ¬A comparative evaluation of the retrieval effectiveness of titles, Library of Congress Subject Headings and PRECIS strings for computer searching of UK MARC data (1979)
0.00
7.051135E-4 = product of: 0.002820454 = sum of: 0.002820454 = product of: 0.008461362 = sum of: 0.008461362 = weight(_text_:a in 5277) [ClassicSimilarity], result of: 0.008461362 = score(doc=5277,freq=2.0), product of: 0.055348642 = queryWeight, product of: 1.153047 = idf(docFreq=37942, maxDocs=44218) 0.04800207 = queryNorm 0.15287387 = fieldWeight in 5277, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.153047 = idf(docFreq=37942, maxDocs=44218) 0.09375 = fieldNorm(doc=5277) 0.33333334 = coord(1/3) 0.25 = coord(1/4)