-
Leininger, K.: Interindexer consistency in PsychINFO (2000)
0.04
0.03771992 = product of:
0.07543984 = sum of:
0.07543984 = sum of:
0.03844473 = weight(_text_:k in 2552) [ClassicSimilarity], result of:
0.03844473 = score(doc=2552,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.23664509 = fieldWeight in 2552, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046875 = fieldNorm(doc=2552)
0.036995113 = weight(_text_:22 in 2552) [ClassicSimilarity], result of:
0.036995113 = score(doc=2552,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.23214069 = fieldWeight in 2552, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2552)
0.5 = coord(1/2)
- Date
- 9. 2.1997 18:44:22
-
Kuriyama, K.; Kando, N.; Nozue, T.; Eguchi, K.: Pooling for a large-scale test collection : an analysis of the search results from the First NTCIR Workshop (2002)
0.03
0.027184527 = product of:
0.054369055 = sum of:
0.054369055 = product of:
0.10873811 = sum of:
0.10873811 = weight(_text_:k in 3830) [ClassicSimilarity], result of:
0.10873811 = score(doc=3830,freq=4.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.66933334 = fieldWeight in 3830, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=3830)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000)
0.02
0.021580484 = product of:
0.043160968 = sum of:
0.043160968 = product of:
0.086321935 = sum of:
0.086321935 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
0.086321935 = score(doc=6438,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.5416616 = fieldWeight in 6438, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=6438)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 11. 8.2001 16:22:19
-
Buckley, C.; Voorhees, E.M.: Retrieval evaluation with incomplete information (2004)
0.02
0.019222366 = product of:
0.03844473 = sum of:
0.03844473 = product of:
0.07688946 = sum of:
0.07688946 = weight(_text_:k in 4127) [ClassicSimilarity], result of:
0.07688946 = score(doc=4127,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.47329018 = fieldWeight in 4127, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=4127)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a
-
Kwok, K.-L.: Ten years of ad hoc retrieval at TREC using PIRCS (2005)
0.02
0.019222366 = product of:
0.03844473 = sum of:
0.03844473 = product of:
0.07688946 = sum of:
0.07688946 = weight(_text_:k in 5090) [ClassicSimilarity], result of:
0.07688946 = score(doc=5090,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.47329018 = fieldWeight in 5090, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=5090)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Sparck Jones, K.: Metareflections on TREC (2005)
0.02
0.019222366 = product of:
0.03844473 = sum of:
0.03844473 = product of:
0.07688946 = sum of:
0.07688946 = weight(_text_:k in 5092) [ClassicSimilarity], result of:
0.07688946 = score(doc=5092,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.47329018 = fieldWeight in 5092, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.09375 = fieldNorm(doc=5092)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Fan, W.; Luo, M.; Wang, L.; Xi, W.; Fox, E.A.: Tuning before feedback : combining ranking discovery and blind feedback for robust retrieval (2004)
0.02
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = product of:
0.064074546 = sum of:
0.064074546 = weight(_text_:k in 4052) [ClassicSimilarity], result of:
0.064074546 = score(doc=4052,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.39440846 = fieldWeight in 4052, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.078125 = fieldNorm(doc=4052)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a
-
Kazai, G.; Lalmas, M.: ¬The overlap problem in content-oriented XML retrieval evaluation (2004)
0.02
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = product of:
0.064074546 = sum of:
0.064074546 = weight(_text_:k in 4083) [ClassicSimilarity], result of:
0.064074546 = score(doc=4083,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.39440846 = fieldWeight in 4083, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.078125 = fieldNorm(doc=4083)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a
-
Amitay, E.; Carmel, D.; Lempel, R.; Soffer, A.: Scaling IR-system evaluation using Term Relevance Sets (2004)
0.02
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = product of:
0.064074546 = sum of:
0.064074546 = weight(_text_:k in 4118) [ClassicSimilarity], result of:
0.064074546 = score(doc=4118,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.39440846 = fieldWeight in 4118, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.078125 = fieldNorm(doc=4118)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- SIGIR'04: Proceedings of the 27th Annual International ACM-SIGIR Conference an Research and Development in Information Retrieval. Ed.: K. Järvelin, u.a
-
Pirkola, A.; Järvelin, K.: Employing the resolution power of search keys (2001)
0.01
0.0112130465 = product of:
0.022426093 = sum of:
0.022426093 = product of:
0.044852186 = sum of:
0.044852186 = weight(_text_:k in 5907) [ClassicSimilarity], result of:
0.044852186 = score(doc=5907,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.27608594 = fieldWeight in 5907, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0546875 = fieldNorm(doc=5907)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Palmquist, R.A.; Kim, K.-S.: Cognitive style and on-line database search experience as predictors of Web search performance (2000)
0.01
0.009611183 = product of:
0.019222366 = sum of:
0.019222366 = product of:
0.03844473 = sum of:
0.03844473 = weight(_text_:k in 4605) [ClassicSimilarity], result of:
0.03844473 = score(doc=4605,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.23664509 = fieldWeight in 4605, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046875 = fieldNorm(doc=4605)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Beall, J.; Kafadar, K.: Measuring typographical errors' impact on retrieval in bibliographic databases (2007)
0.01
0.009611183 = product of:
0.019222366 = sum of:
0.019222366 = product of:
0.03844473 = sum of:
0.03844473 = weight(_text_:k in 261) [ClassicSimilarity], result of:
0.03844473 = score(doc=261,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.23664509 = fieldWeight in 261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.046875 = fieldNorm(doc=261)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Radev, D.R.; Libner, K.; Fan, W.: Getting answers to natural language questions on the Web (2002)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 5204) [ClassicSimilarity], result of:
0.032037273 = score(doc=5204,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 5204, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=5204)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kekäläinen, J.; Järvelin, K.: Using graded relevance assessments in IR evaluation (2002)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 5225) [ClassicSimilarity], result of:
0.032037273 = score(doc=5225,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 5225, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=5225)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Talvensaari, T.; Laurikkala, J.; Järvelin, K.; Juhola, M.: ¬A study on automatic creation of a comparable document collection in cross-language information retrieval (2006)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 5601) [ClassicSimilarity], result of:
0.032037273 = score(doc=5601,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 5601, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=5601)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
King, D.W.: Blazing new trails : in celebration of an audacious career (2000)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 1184) [ClassicSimilarity], result of:
0.030829264 = score(doc=1184,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 1184, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1184)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 9.1997 19:16:05
-
Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 2026) [ClassicSimilarity], result of:
0.030829264 = score(doc=2026,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 2026, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2026)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 44(2008) no.1, S.22-38
-
Ruthven, I.; Lalmas, M.; Rijsbergen, K. van: Combining and selecting characteristics of information use (2002)
0.01
0.006407455 = product of:
0.01281491 = sum of:
0.01281491 = product of:
0.02562982 = sum of:
0.02562982 = weight(_text_:k in 5208) [ClassicSimilarity], result of:
0.02562982 = score(doc=5208,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.15776339 = fieldWeight in 5208, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.03125 = fieldNorm(doc=5208)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Lioma, C.; Ounis, I.: ¬A syntactically-based query reformulation technique for information retrieval (2008)
0.01
0.006407455 = product of:
0.01281491 = sum of:
0.01281491 = product of:
0.02562982 = sum of:
0.02562982 = weight(_text_:k in 2031) [ClassicSimilarity], result of:
0.02562982 = score(doc=2031,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.15776339 = fieldWeight in 2031, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.03125 = fieldNorm(doc=2031)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Whereas in language words of high frequency are generally associated with low content [Bookstein, A., & Swanson, D. (1974). Probabilistic models for automatic indexing. Journal of the American Society of Information Science, 25(5), 312-318; Damerau, F. J. (1965). An experiment in automatic indexing. American Documentation, 16, 283-289; Harter, S. P. (1974). A probabilistic approach to automatic keyword indexing. PhD thesis, University of Chicago; Sparck-Jones, K. (1972). A statistical interpretation of term specificity and its application in retrieval. Journal of Documentation, 28, 11-21; Yu, C., & Salton, G. (1976). Precision weighting - an effective automatic indexing method. Journal of the Association for Computer Machinery (ACM), 23(1), 76-88], shallow syntactic fragments of high frequency generally correspond to lexical fragments of high content [Lioma, C., & Ounis, I. (2006). Examining the content load of part of speech blocks for information retrieval. In Proceedings of the international committee on computational linguistics and the association for computational linguistics (COLING/ACL 2006), Sydney, Australia]. We implement this finding to Information Retrieval, as follows. We present a novel automatic query reformulation technique, which is based on shallow syntactic evidence induced from various language samples, and used to enhance the performance of an Information Retrieval system. Firstly, we draw shallow syntactic evidence from language samples of varying size, and compare the effect of language sample size upon retrieval performance, when using our syntactically-based query reformulation (SQR) technique. Secondly, we compare SQR to a state-of-the-art probabilistic pseudo-relevance feedback technique. Additionally, we combine both techniques and evaluate their compatibility. We evaluate our proposed technique across two standard Text REtrieval Conference (TREC) English test collections, and three statistically different weighting models. Experimental results suggest that SQR markedly enhances retrieval performance, and is at least comparable to pseudo-relevance feedback. Notably, the combination of SQR and pseudo-relevance feedback further enhances retrieval performance considerably. These collective experimental results confirm the tenet that high frequency shallow syntactic fragments correspond to content-bearing lexical fragments.
-
Larsen, B.; Ingwersen, P.; Lund, B.: Data fusion according to the principle of polyrepresentation (2009)
0.01
0.006165853 = product of:
0.012331706 = sum of:
0.012331706 = product of:
0.024663411 = sum of:
0.024663411 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
0.024663411 = score(doc=2752,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.15476047 = fieldWeight in 2752, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=2752)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2009 18:48:28
