-
Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000)
0.05
0.04789843 = product of:
0.09579686 = sum of:
0.09579686 = sum of:
0.008422533 = weight(_text_:s in 6438) [ClassicSimilarity], result of:
0.008422533 = score(doc=6438,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 6438, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=6438)
0.08737433 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
0.08737433 = score(doc=6438,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = 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)
- Date
- 11. 8.2001 16:22:19
- Source
- Information processing and management. 36(2000) no.1, S.3-36
-
Dresel, R.; Hörnig, D.; Kaluza, H.; Peter, A.; Roßmann, A.; Sieber, W.: Evaluation deutscher Web-Suchwerkzeuge : Ein vergleichender Retrievaltest (2001)
0.03
0.02836731 = product of:
0.05673462 = sum of:
0.05673462 = sum of:
0.006806435 = weight(_text_:s in 261) [ClassicSimilarity], result of:
0.006806435 = score(doc=261,freq=4.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.1359047 = fieldWeight in 261, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0625 = fieldNorm(doc=261)
0.04992819 = weight(_text_:22 in 261) [ClassicSimilarity], result of:
0.04992819 = score(doc=261,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = queryNorm
0.30952093 = fieldWeight in 261, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=261)
0.5 = coord(1/2)
- Abstract
- Die deutschen Suchmaschinen, Abacho, Acoon, Fireball und Lycos sowie die Web-Kataloge Web.de und Yahoo! werden einem Qualitätstest nach relativem Recall, Precision und Availability unterzogen. Die Methoden der Retrievaltests werden vorgestellt. Im Durchschnitt werden bei einem Cut-Off-Wert von 25 ein Recall von rund 22%, eine Precision von knapp 19% und eine Verfügbarkeit von 24% erreicht
- Footnote
- Vgl. auch den Bericht in: nfd 53(2002) H.2, S.71
- Source
- nfd Information - Wissenschaft und Praxis. 52(2001) H.7, S.381-392
-
¬The Eleventh Text Retrieval Conference, TREC 2002 (2003)
0.03
0.027370533 = product of:
0.054741066 = sum of:
0.054741066 = sum of:
0.004812876 = weight(_text_:s in 4049) [ClassicSimilarity], result of:
0.004812876 = score(doc=4049,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.09609913 = fieldWeight in 4049, 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=4049)
0.04992819 = weight(_text_:22 in 4049) [ClassicSimilarity], result of:
0.04992819 = score(doc=4049,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = queryNorm
0.30952093 = fieldWeight in 4049, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=4049)
0.5 = coord(1/2)
- Abstract
- Proceedings of the llth TREC-conference held in Gaithersburg, Maryland (USA), November 19-22, 2002. Aim of the conference was discussion an retrieval and related information-seeking tasks for large test collection. 93 research groups used different techniques, for information retrieval from the same large database. This procedure makes it possible to compare the results. The tasks are: Cross-language searching, filtering, interactive searching, searching for novelty, question answering, searching for video shots, and Web searching.
- Type
- s
-
Leininger, K.: Interindexer consistency in PsychINFO (2000)
0.02
0.0205279 = product of:
0.0410558 = sum of:
0.0410558 = sum of:
0.003609657 = weight(_text_:s in 2552) [ClassicSimilarity], result of:
0.003609657 = score(doc=2552,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.072074346 = fieldWeight in 2552, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=2552)
0.03744614 = weight(_text_:22 in 2552) [ClassicSimilarity], result of:
0.03744614 = score(doc=2552,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = 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
- Source
- Journal of librarianship and information science. 32(2000) no.1, S.4-8
-
King, D.W.: Blazing new trails : in celebration of an audacious career (2000)
0.02
0.017106583 = product of:
0.034213167 = sum of:
0.034213167 = sum of:
0.0030080476 = weight(_text_:s in 1184) [ClassicSimilarity], result of:
0.0030080476 = score(doc=1184,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.060061958 = fieldWeight in 1184, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0390625 = fieldNorm(doc=1184)
0.03120512 = weight(_text_:22 in 1184) [ClassicSimilarity], result of:
0.03120512 = score(doc=1184,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = 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)
- Date
- 22. 9.1997 19:16:05
- Pages
- S.59-78
-
Petrelli, D.: On the role of user-centred evaluation in the advancement of interactive information retrieval (2008)
0.02
0.017106583 = product of:
0.034213167 = sum of:
0.034213167 = sum of:
0.0030080476 = weight(_text_:s in 2026) [ClassicSimilarity], result of:
0.0030080476 = score(doc=2026,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.060061958 = fieldWeight in 2026, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0390625 = fieldNorm(doc=2026)
0.03120512 = weight(_text_:22 in 2026) [ClassicSimilarity], result of:
0.03120512 = score(doc=2026,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = 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)
- Source
- Information processing and management. 44(2008) no.1, S.22-38
-
Larsen, B.; Ingwersen, P.; Lund, B.: Data fusion according to the principle of polyrepresentation (2009)
0.01
0.0136852665 = product of:
0.027370533 = sum of:
0.027370533 = sum of:
0.002406438 = weight(_text_:s in 2752) [ClassicSimilarity], result of:
0.002406438 = score(doc=2752,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.048049565 = fieldWeight in 2752, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.03125 = fieldNorm(doc=2752)
0.024964094 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
0.024964094 = score(doc=2752,freq=2.0), product of:
0.16130796 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046063907 = 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)
- Date
- 22. 3.2009 18:48:28
- Source
- Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.646-654
-
Rao, A.; Lu, A.; Meier, E.; Ahmed, S.; Pliske, D.: Query processing in TREC6 (2000)
0.00
0.0029778155 = product of:
0.005955631 = sum of:
0.005955631 = product of:
0.011911262 = sum of:
0.011911262 = weight(_text_:s in 6420) [ClassicSimilarity], result of:
0.011911262 = score(doc=6420,freq=4.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.23783323 = fieldWeight in 6420, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=6420)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 36(2000) no.1, S.179-186
-
Robertson, S.; Callan, J.: Routing and filtering (2005)
0.00
0.0029778155 = product of:
0.005955631 = sum of:
0.005955631 = product of:
0.011911262 = sum of:
0.011911262 = weight(_text_:s in 4688) [ClassicSimilarity], result of:
0.011911262 = score(doc=4688,freq=4.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.23783323 = fieldWeight in 4688, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=4688)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.99-122
-
Robertson, S.E.; Walker, S.; Beaulieu, M.: Experimentation as a way of life : Okapi at TREC (2000)
0.00
0.0025524131 = product of:
0.0051048263 = sum of:
0.0051048263 = product of:
0.010209653 = sum of:
0.010209653 = weight(_text_:s in 6030) [ClassicSimilarity], result of:
0.010209653 = score(doc=6030,freq=4.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.20385705 = fieldWeight in 6030, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=6030)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 36(2000) no.1, S.95-108
-
Robertson, S.: How Okapi came to TREC (2005)
0.00
0.0025524131 = product of:
0.0051048263 = sum of:
0.0051048263 = product of:
0.010209653 = sum of:
0.010209653 = weight(_text_:s in 5087) [ClassicSimilarity], result of:
0.010209653 = score(doc=5087,freq=4.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.20385705 = fieldWeight in 5087, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.09375 = fieldNorm(doc=5087)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.287-300
-
Foster, A.; Ford, N.: Serendipity and information seeking : an empirical study (2003)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 1083) [ClassicSimilarity], result of:
0.008422533 = score(doc=1083,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 1083, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=1083)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of documentation. 59(2003) no.3, S.321-340
-
Wilbur, W.J.: Global term weights for document retrieval learned from TREC data (2001)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 2647) [ClassicSimilarity], result of:
0.008422533 = score(doc=2647,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 2647, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=2647)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of information science. 27(2001) no.5, S.303-310
-
Hersh, W.R.; Over, P.: Interactivity at the Text Retrieval Conference (TREC) (2001)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 5486) [ClassicSimilarity], result of:
0.008422533 = score(doc=5486,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 5486, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=5486)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 37(2001) no.3, S.365-367
-
Over, P.: ¬The TREC interactive track : an annotated bibliography (2001)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 5572) [ClassicSimilarity], result of:
0.008422533 = score(doc=5572,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 5572, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=5572)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 37(2001) no.3, S.369-381
-
Voorhees, E.M.: Variations in relevance judgements and the measurement of retrieval effectiveness (2000)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 8710) [ClassicSimilarity], result of:
0.008422533 = score(doc=8710,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 8710, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=8710)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 36(2000) no.5, S.697-716
-
Harman, D.K.: ¬The TREC test collections (2005)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 4637) [ClassicSimilarity], result of:
0.008422533 = score(doc=4637,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 4637, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=4637)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.21-52
-
Buckley, C.; Voorhees, E.M.: Retrieval system evaluation (2005)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 648) [ClassicSimilarity], result of:
0.008422533 = score(doc=648,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 648, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=648)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.53-78
-
Voiskunskii, V.G.: Evaluation of search results (2000)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 4670) [ClassicSimilarity], result of:
0.008422533 = score(doc=4670,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 4670, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=4670)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.118-138
-
Harman, D.K.: ¬The TREC ad hoc experiments (2005)
0.00
0.0021056333 = product of:
0.0042112665 = sum of:
0.0042112665 = product of:
0.008422533 = sum of:
0.008422533 = weight(_text_:s in 5711) [ClassicSimilarity], result of:
0.008422533 = score(doc=5711,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.16817348 = fieldWeight in 5711, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.109375 = fieldNorm(doc=5711)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Pages
- S.79-98