-
Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997)
0.08
0.080603525 = product of:
0.16120705 = sum of:
0.16120705 = sum of:
0.09075786 = weight(_text_:l in 3103) [ClassicSimilarity], result of:
0.09075786 = score(doc=3103,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.4391412 = fieldWeight in 3103, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.078125 = fieldNorm(doc=3103)
0.07044918 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
0.07044918 = score(doc=3103,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.38690117 = fieldWeight in 3103, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=3103)
0.5 = coord(1/2)
- Date
- 27. 2.1999 20:55:22
-
Schultz Jr., W.N.; Braddy, L.: ¬A librarian-centered study of perceptions of subject terms and controlled vocabulary (2017)
0.05
0.05265955 = sum of:
0.020894295 = product of:
0.08357718 = sum of:
0.08357718 = weight(_text_:authors in 5156) [ClassicSimilarity], result of:
0.08357718 = score(doc=5156,freq=2.0), product of:
0.23704608 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05199731 = queryNorm
0.35257778 = fieldWeight in 5156, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.0546875 = fieldNorm(doc=5156)
0.25 = coord(1/4)
0.031765252 = product of:
0.063530505 = sum of:
0.063530505 = weight(_text_:l in 5156) [ClassicSimilarity], result of:
0.063530505 = score(doc=5156,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.30739886 = fieldWeight in 5156, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=5156)
0.5 = coord(1/2)
- Abstract
- Controlled vocabulary and subject headings in OPAC records have proven to be useful in improving search results. The authors used a survey to gather information about librarian opinions and professional use of controlled vocabulary. Data from a range of backgrounds and expertise were examined, including academic and public libraries, and technical services as well as public services professionals. Responses overall demonstrated positive opinions of the value of controlled vocabulary, including in reference interactions as well as during bibliographic instruction sessions. Results are also examined based upon factors such as age and type of librarian.
-
Wildemuth, B.; Freund, L.; Toms, E.G.: Untangling search task complexity and difficulty in the context of interactive information retrieval studies (2014)
0.04
0.040301763 = product of:
0.080603525 = sum of:
0.080603525 = sum of:
0.04537893 = weight(_text_:l in 1786) [ClassicSimilarity], result of:
0.04537893 = score(doc=1786,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.2195706 = fieldWeight in 1786, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=1786)
0.03522459 = weight(_text_:22 in 1786) [ClassicSimilarity], result of:
0.03522459 = score(doc=1786,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.19345059 = fieldWeight in 1786, 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=1786)
0.5 = coord(1/2)
- Date
- 6. 4.2015 19:31:22
-
Pal, S.; Mitra, M.; Kamps, J.: Evaluation effort, reliability and reusability in XML retrieval (2011)
0.04
0.038718723 = sum of:
0.021106426 = product of:
0.0844257 = sum of:
0.0844257 = weight(_text_:authors in 4197) [ClassicSimilarity], result of:
0.0844257 = score(doc=4197,freq=4.0), product of:
0.23704608 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05199731 = queryNorm
0.35615736 = fieldWeight in 4197, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.0390625 = fieldNorm(doc=4197)
0.25 = coord(1/4)
0.017612295 = product of:
0.03522459 = sum of:
0.03522459 = weight(_text_:22 in 4197) [ClassicSimilarity], result of:
0.03522459 = score(doc=4197,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.19345059 = fieldWeight in 4197, 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=4197)
0.5 = coord(1/2)
- Abstract
- The Initiative for the Evaluation of XML retrieval (INEX) provides a TREC-like platform for evaluating content-oriented XML retrieval systems. Since 2007, INEX has been using a set of precision-recall based metrics for its ad hoc tasks. The authors investigate the reliability and robustness of these focused retrieval measures, and of the INEX pooling method. They explore four specific questions: How reliable are the metrics when assessments are incomplete, or when query sets are small? What is the minimum pool/query-set size that can be used to reliably evaluate systems? Can the INEX collections be used to fairly evaluate "new" systems that did not participate in the pooling process? And, for a fixed amount of assessment effort, would this effort be better spent in thoroughly judging a few queries, or in judging many queries relatively superficially? The authors' findings validate properties of precision-recall-based metrics observed in document retrieval settings. Early precision measures are found to be more error-prone and less stable under incomplete judgments and small topic-set sizes. They also find that system rankings remain largely unaffected even when assessment effort is substantially (but systematically) reduced, and confirm that the INEX collections remain usable when evaluating nonparticipating systems. Finally, they observe that for a fixed amount of effort, judging shallow pools for many queries is better than judging deep pools for a smaller set of queries. However, when judging only a random sample of a pool, it is better to completely judge fewer topics than to partially judge many topics. This result confirms the effectiveness of pooling methods.
- Date
- 22. 1.2011 14:20:56
-
Evans, L.: ¬An experiment : search strategy variations in SDI (1981)
0.04
0.036303144 = product of:
0.07260629 = sum of:
0.07260629 = product of:
0.14521258 = sum of:
0.14521258 = weight(_text_:l in 3158) [ClassicSimilarity], result of:
0.14521258 = score(doc=3158,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.70262593 = fieldWeight in 3158, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.125 = fieldNorm(doc=3158)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Hancock-Beaulieu, M.; McKenzie, L.; Irving, A.: Evaluative protocols for searching behaviour in online library catalogues (1991)
0.03
0.031765252 = product of:
0.063530505 = sum of:
0.063530505 = product of:
0.12706101 = sum of:
0.12706101 = weight(_text_:l in 347) [ClassicSimilarity], result of:
0.12706101 = score(doc=347,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.6147977 = fieldWeight in 347, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.109375 = fieldNorm(doc=347)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kelledy, L.; Smeaton, A.F.: TREC-5 experiments at Dublin City University : Query space reduction, Spanish & character shape encoding (1997)
0.03
0.027227357 = product of:
0.054454714 = sum of:
0.054454714 = product of:
0.10890943 = sum of:
0.10890943 = weight(_text_:l in 3089) [ClassicSimilarity], result of:
0.10890943 = score(doc=3089,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.52696943 = fieldWeight in 3089, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.09375 = fieldNorm(doc=3089)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Burnett, M.; Jones, R.; Pape, L.: InTEXT automatic query enhancements in TREC-5 (1997)
0.03
0.027227357 = product of:
0.054454714 = sum of:
0.054454714 = product of:
0.10890943 = sum of:
0.10890943 = weight(_text_:l in 3091) [ClassicSimilarity], result of:
0.10890943 = score(doc=3091,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.52696943 = fieldWeight in 3091, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.09375 = fieldNorm(doc=3091)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kwok, K.L.; Grunfeld, L.: TREC-5 English and Chinese retrieval experiments using PIRCS (1997)
0.03
0.027227357 = product of:
0.054454714 = sum of:
0.054454714 = product of:
0.10890943 = sum of:
0.10890943 = weight(_text_:l in 3102) [ClassicSimilarity], result of:
0.10890943 = score(doc=3102,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.52696943 = fieldWeight in 3102, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.09375 = fieldNorm(doc=3102)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Kwok, K.-L.: Ten years of ad hoc retrieval at TREC using PIRCS (2005)
0.03
0.027227357 = product of:
0.054454714 = sum of:
0.054454714 = product of:
0.10890943 = sum of:
0.10890943 = weight(_text_:l in 5090) [ClassicSimilarity], result of:
0.10890943 = score(doc=5090,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.52696943 = fieldWeight in 5090, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.09375 = fieldNorm(doc=5090)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984)
0.02
0.024657212 = product of:
0.049314424 = sum of:
0.049314424 = product of:
0.09862885 = sum of:
0.09862885 = weight(_text_:22 in 262) [ClassicSimilarity], result of:
0.09862885 = score(doc=262,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.5416616 = fieldWeight in 262, 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=262)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20.10.2000 12:22:23
-
Tomaiuolo, N.G.; Parker, J.: Maximizing relevant retrieval : keyword and natural language searching (1998)
0.02
0.024657212 = product of:
0.049314424 = sum of:
0.049314424 = product of:
0.09862885 = sum of:
0.09862885 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
0.09862885 = score(doc=6418,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.5416616 = fieldWeight in 6418, 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=6418)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Online. 22(1998) no.6, S.57-58
-
Voorhees, E.M.; Harman, D.: Overview of the Sixth Text REtrieval Conference (TREC-6) (2000)
0.02
0.024657212 = product of:
0.049314424 = sum of:
0.049314424 = product of:
0.09862885 = sum of:
0.09862885 = weight(_text_:22 in 6438) [ClassicSimilarity], result of:
0.09862885 = score(doc=6438,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = 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
-
Dalrymple, P.W.: Retrieval by reformulation in two library catalogs : toward a cognitive model of searching behavior (1990)
0.02
0.024657212 = product of:
0.049314424 = sum of:
0.049314424 = product of:
0.09862885 = sum of:
0.09862885 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
0.09862885 = score(doc=5089,freq=2.0), product of:
0.18208572 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05199731 = queryNorm
0.5416616 = fieldWeight in 5089, 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=5089)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 18:43:54
-
TREC: experiment and evaluation in information retrieval (2005)
0.02
0.023506122 = sum of:
0.007462248 = product of:
0.029848993 = sum of:
0.029848993 = weight(_text_:authors in 636) [ClassicSimilarity], result of:
0.029848993 = score(doc=636,freq=2.0), product of:
0.23704608 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05199731 = queryNorm
0.12592064 = fieldWeight in 636, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.01953125 = fieldNorm(doc=636)
0.25 = coord(1/4)
0.016043874 = product of:
0.032087747 = sum of:
0.032087747 = weight(_text_:l in 636) [ClassicSimilarity], result of:
0.032087747 = score(doc=636,freq=4.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.15525986 = fieldWeight in 636, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.01953125 = fieldNorm(doc=636)
0.5 = coord(1/2)
- Content
- Enthält die Beiträge: 1. The Text REtrieval Conference - Ellen M. Voorhees and Donna K. Harman 2. The TREC Test Collections - Donna K. Harman 3. Retrieval System Evaluation - Chris Buckley and Ellen M. Voorhees 4. The TREC Ad Hoc Experiments - Donna K. Harman 5. Routing and Filtering - Stephen Robertson and Jamie Callan 6. The TREC Interactive Tracks: Putting the User into Search - Susan T. Dumais and Nicholas J. Belkin 7. Beyond English - Donna K. Harman 8. Retrieving Noisy Text - Ellen M. Voorhees and John S. Garofolo 9.The Very Large Collection and Web Tracks - David Hawking and Nick Craswell 10. Question Answering in TREC - Ellen M. Voorhees 11. The University of Massachusetts and a Dozen TRECs - James Allan, W. Bruce Croft and Jamie Callan 12. How Okapi Came to TREC - Stephen Robertson 13. The SMART Project at TREC - Chris Buckley 14. Ten Years of Ad Hoc Retrieval at TREC Using PIRCS - Kui-Lam Kwok 15. MultiText Experiments for TREC - Gordon V. Cormack, Charles L. A. Clarke, Christopher R. Palmer and Thomas R. Lynam 16. A Language-Modeling Approach to TREC - Djoerd Hiemstra and Wessel Kraaij 17. BM Research Activities at TREC - Eric W. Brown, David Carmel, Martin Franz, Abraham Ittycheriah, Tapas Kanungo, Yoelle Maarek, J. Scott McCarley, Robert L. Mack, John M. Prager, John R. Smith, Aya Soffer, Jason Y. Zien and Alan D. Marwick Epilogue: Metareflections on TREC - Karen Sparck Jones
- Footnote
- ... TREC: Experiment and Evaluation in Information Retrieval is a reliable and comprehensive review of the TREC program and has been adopted by NIST as the official history of TREC (see http://trec.nist.gov). We were favorably surprised by the book. Well structured and written, chapters are self-contained and the existence of references to specialized and more detailed publications is continuous, which makes it easier to expand into the different aspects analyzed in the text. This book succeeds in compiling TREC evolution from its inception in 1992 to 2003 in an adequate and manageable volume. Thanks to the impressive effort performed by the authors and their experience in the field, it can satiate the interests of a great variety of readers. While expert researchers in the IR field and IR-related industrial companies can use it as a reference manual, it seems especially useful for students and non-expert readers willing to approach this research area. Like NIST, we would recommend this reading to anyone who may be interested in textual information retrieval."
-
Smeaton, A.F.; Kelledy, L.; O'Donnell, R.: TREC-4 experiments at Dublin City University : thresholding posting lists, query expansion with WordNet and POS tagging of Spanish (1996)
0.02
0.022689465 = product of:
0.04537893 = sum of:
0.04537893 = product of:
0.09075786 = sum of:
0.09075786 = weight(_text_:l in 7000) [ClassicSimilarity], result of:
0.09075786 = score(doc=7000,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.4391412 = fieldWeight in 7000, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.078125 = fieldNorm(doc=7000)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Strzalkowski, T.; Guthrie, L.; Karlgren, J.; Leistensnider, J.; Lin, F.; Perez-Carballo, J.; Straszheim, T.; Wang, J.; Wilding, J.: Natural language information retrieval : TREC-5 report (1997)
0.02
0.022689465 = product of:
0.04537893 = sum of:
0.04537893 = product of:
0.09075786 = sum of:
0.09075786 = weight(_text_:l in 3100) [ClassicSimilarity], result of:
0.09075786 = score(doc=3100,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.4391412 = fieldWeight in 3100, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.078125 = fieldNorm(doc=3100)
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
0.022689465 = product of:
0.04537893 = sum of:
0.04537893 = product of:
0.09075786 = sum of:
0.09075786 = weight(_text_:l in 4052) [ClassicSimilarity], result of:
0.09075786 = score(doc=4052,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.4391412 = fieldWeight in 4052, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.078125 = fieldNorm(doc=4052)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Cross-language information retrieval (1998)
0.02
0.01880698 = sum of:
0.007462248 = product of:
0.029848993 = sum of:
0.029848993 = weight(_text_:authors in 6299) [ClassicSimilarity], result of:
0.029848993 = score(doc=6299,freq=2.0), product of:
0.23704608 = queryWeight, product of:
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.05199731 = queryNorm
0.12592064 = fieldWeight in 6299, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.558814 = idf(docFreq=1258, maxDocs=44218)
0.01953125 = fieldNorm(doc=6299)
0.25 = coord(1/4)
0.011344733 = product of:
0.022689465 = sum of:
0.022689465 = weight(_text_:l in 6299) [ClassicSimilarity], result of:
0.022689465 = score(doc=6299,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.1097853 = fieldWeight in 6299, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.01953125 = fieldNorm(doc=6299)
0.5 = coord(1/2)
- Content
- Enthält die Beiträge: GREFENSTETTE, G.: The Problem of Cross-Language Information Retrieval; DAVIS, M.W.: On the Effective Use of Large Parallel Corpora in Cross-Language Text Retrieval; BALLESTEROS, L. u. W.B. CROFT: Statistical Methods for Cross-Language Information Retrieval; Distributed Cross-Lingual Information Retrieval; Automatic Cross-Language Information Retrieval Using Latent Semantic Indexing; EVANS, D.A. u.a.: Mapping Vocabularies Using Latent Semantics; PICCHI, E. u. C. PETERS: Cross-Language Information Retrieval: A System for Comparable Corpus Querying; YAMABANA, K. u.a.: A Language Conversion Front-End for Cross-Language Information Retrieval; GACHOT, D.A. u.a.: The Systran NLP Browser: An Application of Machine Translation Technology in Cross-Language Information Retrieval; HULL, D.: A Weighted Boolean Model for Cross-Language Text Retrieval; SHERIDAN, P. u.a. Building a Large Multilingual Test Collection from Comparable News Documents; OARD; D.W. u. B.J. DORR: Evaluating Cross-Language Text Filtering Effectiveness
- Footnote
- The retrieved output from a query including the phrase 'big rockets' may be, for instance, a sentence containing 'giant rocket' which is semantically ranked above 'military ocket'. David Hull (Xerox Research Centre, Grenoble) describes an implementation of a weighted Boolean model for Spanish-English CLIR. Users construct Boolean-type queries, weighting each term in the query, which is then translated by an on-line dictionary before being applied to the database. Comparisons with the performance of unweighted free-form queries ('vector space' models) proved encouraging. Two contributions consider the evaluation of CLIR systems. In order to by-pass the time-consuming and expensive process of assembling a standard collection of documents and of user queries against which the performance of an CLIR system is manually assessed, Páriac Sheridan et al (ETH Zurich) propose a method based on retrieving 'seed documents'. This involves identifying a unique document in a database (the 'seed document') and, for a number of queries, measuring how fast it is retrieved. The authors have also assembled a large database of multilingual news documents for testing purposes. By storing the (fairly short) documents in a structured form tagged with descriptor codes (e.g. for topic, country and area), the test suite is easily expanded while remaining consistent for the purposes of testing. Douglas Ouard and Bonne Dorr (University of Maryland) describe an evaluation methodology which appears to apply LSI techniques in order to filter and rank incoming documents designed for testing CLIR systems. The volume provides the reader an excellent overview of several projects in CLIR. It is well supported with references and is intended as a secondary text for researchers and practitioners. It highlights the need for a good, general tutorial introduction to the field."
-
Barry, C.I.; Schamber, L.: User-defined relevance criteria : a comparison of 2 studies (1995)
0.02
0.018151572 = product of:
0.036303144 = sum of:
0.036303144 = product of:
0.07260629 = sum of:
0.07260629 = weight(_text_:l in 3850) [ClassicSimilarity], result of:
0.07260629 = score(doc=3850,freq=2.0), product of:
0.20667124 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.05199731 = queryNorm
0.35131297 = fieldWeight in 3850, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0625 = fieldNorm(doc=3850)
0.5 = coord(1/2)
0.5 = coord(1/2)
