Search (2 results, page 1 of 1)
-
×
author_ss:"Sparck Jones, K."
-
×
theme_ss:"Computerlinguistik"
-
×
type_ss:"a"
-
×
year_i:[1970 TO 1980}
- Did you mean:
- rvk_ss%3a%2200 76400 allgemeines %2f buch- und bibliothekswesen%2c informationswissenschaft %2f bibliothekswesen %2f bibliotheksbenutzung %2f auskunft%2c information%22 2
- rvk_ss%3a%2200 73400 allgemeines %2f buch- und bibliothekswesen%2c informationswissenschaft %2f bibliothekswesen %2f bibliotheksbenutzung %2f auskunft%2c information%22 2
- rvk_ss%3a%2200 76400 allgemeinen %2f buch- und bibliothekswesen%2c informationswissenschaft %2f bibliothekswesen %2f bibliotheksbenutzung %2f auskunft%2c information%22 2
- rvk_ss%3a%2200 76400 allgemeines %2f buch- und bibliothekswesen%2c informationswissenschaft %2f bibliothekswesen %2f bibliotheksbenutzung %2f auskunfts%2c information%22 2
- rvk_ss%3a%2223 76400 allgemeines %2f buch- und bibliothekswesen%2c informationswissenschaft %2f bibliothekswesen %2f bibliotheksbenutzung %2f auskunft%2c information%22 2
-
Kay, M.; Sparck Jones, K.: Automated language processing (1971)
0.00
5.2621565E-4 = product of: 0.0078932345 = sum of: 0.0078932345 = product of: 0.015786469 = sum of: 0.015786469 = weight(_text_:information in 250) [ClassicSimilarity], result of: 0.015786469 = score(doc=250,freq=2.0), product of: 0.050870337 = queryWeight, product of: 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.028978055 = queryNorm 0.3103276 = fieldWeight in 250, product of: 1.4142135 = tf(freq=2.0), with freq of: 2.0 = termFreq=2.0 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.125 = fieldNorm(doc=250) 0.5 = coord(1/2) 0.06666667 = coord(1/15)
- Source
- Annual review of information science and technology. 6(1971), S.141-166
-
Robertson, S.E.; Sparck Jones, K.: Relevance weighting of search terms (1976)
0.00
4.5571616E-4 = product of: 0.006835742 = sum of: 0.006835742 = product of: 0.013671484 = sum of: 0.013671484 = weight(_text_:information in 71) [ClassicSimilarity], result of: 0.013671484 = score(doc=71,freq=6.0), product of: 0.050870337 = queryWeight, product of: 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.028978055 = queryNorm 0.2687516 = fieldWeight in 71, product of: 2.4494898 = tf(freq=6.0), with freq of: 6.0 = termFreq=6.0 1.7554779 = idf(docFreq=20772, maxDocs=44218) 0.0625 = fieldNorm(doc=71) 0.5 = coord(1/2) 0.06666667 = coord(1/15)
- Abstract
- Examines statistical techniques for exploiting relevance information to weight search terms. These techniques are presented as a natural extension of weighting methods using information about the distribution of index terms in documents in general. A series of relevance weighting functions is derived and is justified by theoretical considerations. In particular, it is shown that specific weighted search methods are implied by a general probabilistic theory of retrieval. Different applications of relevance weighting are illustrated by experimental results for test collections
- Source
- Journal of the American Society for Information Science. 27(1976), S.129-146