-
Ravana, S.D.; Taheri, M.S.; Rajagopal, P.: Document-based approach to improve the accuracy of pairwise comparison in evaluating information retrieval systems (2015)
0.01
0.0077234996 = product of:
0.015446999 = sum of:
0.015446999 = product of:
0.030893998 = sum of:
0.030893998 = weight(_text_:22 in 2587) [ClassicSimilarity], result of:
0.030893998 = score(doc=2587,freq=2.0), product of:
0.1596997 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045604642 = queryNorm
0.19345059 = fieldWeight in 2587, 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=2587)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Rajagopal, P.; Ravana, S.D.; Koh, Y.S.; Balakrishnan, V.: Evaluating the effectiveness of information retrieval systems using effort-based relevance judgment (2019)
0.01
0.0077234996 = product of:
0.015446999 = sum of:
0.015446999 = product of:
0.030893998 = sum of:
0.030893998 = weight(_text_:22 in 5287) [ClassicSimilarity], result of:
0.030893998 = score(doc=5287,freq=2.0), product of:
0.1596997 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045604642 = queryNorm
0.19345059 = fieldWeight in 5287, 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=5287)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Tseng, Y.-H.: Solving vocabulary problems with interactive query expansion (1998)
0.01
0.0067530405 = product of:
0.013506081 = sum of:
0.013506081 = product of:
0.027012162 = sum of:
0.027012162 = weight(_text_:u in 5159) [ClassicSimilarity], result of:
0.027012162 = score(doc=5159,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.1808892 = fieldWeight in 5159, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0390625 = fieldNorm(doc=5159)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Kantor, P.; Kim, M.H.; Ibraev, U.; Atasoy, K.: Estimating the number of relevant documents in enormous collections (1999)
0.01
0.0067530405 = product of:
0.013506081 = sum of:
0.013506081 = product of:
0.027012162 = sum of:
0.027012162 = weight(_text_:u in 6690) [ClassicSimilarity], result of:
0.027012162 = score(doc=6690,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.1808892 = fieldWeight in 6690, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0390625 = fieldNorm(doc=6690)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
White, H.D.: Relevance theory and distributions of judgments in document retrieval (2017)
0.01
0.0067530405 = product of:
0.013506081 = sum of:
0.013506081 = product of:
0.027012162 = sum of:
0.027012162 = weight(_text_:u in 5099) [ClassicSimilarity], result of:
0.027012162 = score(doc=5099,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.1808892 = fieldWeight in 5099, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.0390625 = fieldNorm(doc=5099)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- This article extends relevance theory (RT) from linguistic pragmatics into information retrieval. Using more than 50 retrieval experiments from the literature as examples, it applies RT to explain the frequency distributions of documents on relevance scales with three or more points. The scale points, which judges in experiments must consider in addition to queries and documents, are communications from researchers. In RT, the relevance of a communication varies directly with its cognitive effects and inversely with the effort of processing it. Researchers define and/or label the scale points to measure the cognitive effects of documents on judges. However, they apparently assume that all scale points as presented are equally easy for judges to process. Yet the notion that points cost variable effort explains fairly well the frequency distributions of judgments across them. By hypothesis, points that cost more effort are chosen by judges less frequently. Effort varies with the vagueness or strictness of scale-point labels and definitions. It is shown that vague scales tend to produce U- or V-shaped distributions, while strict scales tend to produce right-skewed distributions. These results reinforce the paper's more general argument that RT clarifies the concept of relevance in the dialogues of retrieval evaluation.
-
Larsen, B.; Ingwersen, P.; Lund, B.: Data fusion according to the principle of polyrepresentation (2009)
0.01
0.0061787996 = product of:
0.012357599 = sum of:
0.012357599 = product of:
0.024715198 = sum of:
0.024715198 = weight(_text_:22 in 2752) [ClassicSimilarity], result of:
0.024715198 = score(doc=2752,freq=2.0), product of:
0.1596997 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045604642 = 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
-
Cross-language information retrieval (1998)
0.01
0.005848305 = product of:
0.01169661 = sum of:
0.01169661 = product of:
0.02339322 = sum of:
0.02339322 = weight(_text_:u in 6299) [ClassicSimilarity], result of:
0.02339322 = score(doc=6299,freq=6.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.15665466 = fieldWeight in 6299, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.01953125 = fieldNorm(doc=6299)
0.5 = coord(1/2)
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
-
Womser-Hacker, C.: Theorie des Information Retrieval III : Evaluierung (2004)
0.01
0.0054024323 = product of:
0.010804865 = sum of:
0.010804865 = product of:
0.02160973 = sum of:
0.02160973 = weight(_text_:u in 2919) [ClassicSimilarity], result of:
0.02160973 = score(doc=2919,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.14471136 = fieldWeight in 2919, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.03125 = fieldNorm(doc=2919)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
-
TREC: experiment and evaluation in information retrieval (2005)
0.00
0.0047751204 = product of:
0.009550241 = sum of:
0.009550241 = product of:
0.019100482 = sum of:
0.019100482 = weight(_text_:u in 636) [ClassicSimilarity], result of:
0.019100482 = score(doc=636,freq=4.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.12790798 = fieldWeight in 636, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.01953125 = fieldNorm(doc=636)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Editor
- Voorhees, E.M. u. D.K. Harman
- Footnote
- Rez. in: JASIST 58(2007) no.6, S.910-911 (J.L. Vicedo u. J. Gomez): "The Text REtrieval Conference (TREC) is a yearly workshop hosted by the U.S. government's National Institute of Standards and Technology (NIST) that fosters and supports research in information retrieval as well as speeding the transfer of technology between research labs and industry. Since 1992, TREC has provided the infrastructure necessary for large-scale evaluations of different text retrieval methodologies. TREC impact has been very important and its success has been mainly supported by its continuous adaptation to the emerging information retrieval needs. Not in vain, TREC has built evaluation benchmarks for more than 20 different retrieval problems such as Web retrieval, speech retrieval, or question-answering. The large and intense trajectory of annual TREC conferences has resulted in an immense bulk of documents reflecting the different eval uation and research efforts developed. This situation makes it difficult sometimes to observe clearly how research in information retrieval (IR) has evolved over the course of TREC. TREC: Experiment and Evaluation in Information Retrieval succeeds in organizing and condensing all this research into a manageable volume that describes TREC history and summarizes the main lessons learned. The book is organized into three parts. The first part is devoted to the description of TREC's origin and history, the test collections, and the evaluation methodology developed. The second part describes a selection of the major evaluation exercises (tracks), and the third part contains contributions from research groups that had a large and remarkable participation in TREC. Finally, Karen Spark Jones, one of the main promoters of research in IR, closes the book with an epilogue that analyzes the impact of TREC on this research field.
-
Voorhees, E.M.; Harman, D.K.: ¬The Text REtrieval Conference (2005)
0.00
0.004727128 = product of:
0.009454256 = sum of:
0.009454256 = product of:
0.018908512 = sum of:
0.018908512 = weight(_text_:u in 5082) [ClassicSimilarity], result of:
0.018908512 = score(doc=5082,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.12662244 = fieldWeight in 5082, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.02734375 = fieldNorm(doc=5082)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- TREC: experiment and evaluation in information retrieval. Ed.: E.M. Voorhees, u. D.K. Harman
-
Effektive Information Retrieval Verfahren in Theorie und Praxis : ausgewählte und erweiterte Beiträge des Vierten Hildesheimer Evaluierungs- und Retrievalworkshop (HIER 2005), Hildesheim, 20.7.2005 (2006)
0.00
0.0027012161 = product of:
0.0054024323 = sum of:
0.0054024323 = product of:
0.010804865 = sum of:
0.010804865 = weight(_text_:u in 5973) [ClassicSimilarity], result of:
0.010804865 = score(doc=5973,freq=2.0), product of:
0.14932987 = queryWeight, product of:
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.045604642 = queryNorm
0.07235568 = fieldWeight in 5973, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.2744443 = idf(docFreq=4547, maxDocs=44218)
0.015625 = fieldNorm(doc=5973)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Editor
- Mandl, T. u. C. Womser-Hacker
