-
Agosti, M.; Pretto, L.: ¬A theoretical study of a generalized version of kleinberg's HITS algorithm (2005)
0.01
0.008170041 = product of:
0.024510123 = sum of:
0.024510123 = product of:
0.049020246 = sum of:
0.049020246 = weight(_text_:2002 in 4) [ClassicSimilarity], result of:
0.049020246 = score(doc=4,freq=2.0), product of:
0.20701107 = queryWeight, product of:
4.28654 = idf(docFreq=1652, maxDocs=44218)
0.048293278 = queryNorm
0.2368001 = fieldWeight in 4, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.28654 = idf(docFreq=1652, maxDocs=44218)
0.0390625 = fieldNorm(doc=4)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Abstract
- Kleinberg's HITS (Hyperlink-Induced Topic Search) algorithm (Kleinberg 1999), which was originally developed in a Web context, tries to infer the authoritativeness of a Web page in relation to a specific query using the structure of a subgraph of the Web graph, which is obtained considering this specific query. Recent applications of this algorithm in contexts far removed from that of Web searching (Bacchin, Ferro and Melucci 2002, Ng et al. 2001) inspired us to study the algorithm in the abstract, independently of its particular applications, trying to mathematically illuminate its behaviour. In the present paper we detail this theoretical analysis. The original work starts from the definition of a revised and more general version of the algorithm, which includes the classic one as a particular case. We perform an analysis of the structure of two particular matrices, essential to studying the behaviour of the algorithm, and we prove the convergence of the algorithm in the most general case, finding the analytic expression of the vectors to which it converges. Then we study the symmetry of the algorithm and prove the equivalence between the existence of symmetry and the independence from the order of execution of some basic operations on initial vectors. Finally, we expound some interesting consequences of our theoretical results.
-
Lalmas, M.: XML retrieval (2009)
0.01
0.008170041 = product of:
0.024510123 = sum of:
0.024510123 = product of:
0.049020246 = sum of:
0.049020246 = weight(_text_:2002 in 4998) [ClassicSimilarity], result of:
0.049020246 = score(doc=4998,freq=2.0), product of:
0.20701107 = queryWeight, product of:
4.28654 = idf(docFreq=1652, maxDocs=44218)
0.048293278 = queryNorm
0.2368001 = fieldWeight in 4998, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.28654 = idf(docFreq=1652, maxDocs=44218)
0.0390625 = fieldNorm(doc=4998)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Abstract
- Documents usually have a content and a structure. The content refers to the text of the document, whereas the structure refers to how a document is logically organized. An increasingly common way to encode the structure is through the use of a mark-up language. Nowadays, the most widely used mark-up language for representing structure is the eXtensible Mark-up Language (XML). XML can be used to provide a focused access to documents, i.e. returning XML elements, such as sections and paragraphs, instead of whole documents in response to a query. Such focused strategies are of particular benefit for information repositories containing long documents, or documents covering a wide variety of topics, where users are directed to the most relevant content within a document. The increased adoption of XML to represent a document structure requires the development of tools to effectively access documents marked-up in XML. This book provides a detailed description of query languages, indexing strategies, ranking algorithms, presentation scenarios developed to access XML documents. Major advances in XML retrieval were seen from 2002 as a result of INEX, the Initiative for Evaluation of XML Retrieval. INEX, also described in this book, provided test sets for evaluating XML retrieval effectiveness. Many of the developments and results described in this book were investigated within INEX.
-
Ravana, S.D.; Rajagopal, P.; Balakrishnan, V.: Ranking retrieval systems using pseudo relevance judgments (2015)
0.01
0.0077110846 = product of:
0.023133254 = sum of:
0.023133254 = product of:
0.046266507 = sum of:
0.046266507 = weight(_text_:22 in 2591) [ClassicSimilarity], result of:
0.046266507 = score(doc=2591,freq=4.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.27358043 = fieldWeight in 2591, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2591)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 20. 1.2015 18:30:22
18. 9.2018 18:22:56
-
Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.01
0.0076335846 = product of:
0.022900753 = sum of:
0.022900753 = product of:
0.045801505 = sum of:
0.045801505 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.045801505 = score(doc=1319,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.2708308 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 1. 8.1996 22:08:06
-
Kanaeva, Z.: Ranking: Google und CiteSeer (2005)
0.01
0.0076335846 = product of:
0.022900753 = sum of:
0.022900753 = product of:
0.045801505 = sum of:
0.045801505 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
0.045801505 = score(doc=3276,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.2708308 = fieldWeight in 3276, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=3276)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 20. 3.2005 16:23:22
-
Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
0.03925843 = score(doc=5123,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 5123, 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=5123)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 12. 9.1996 13:56:22
-
Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
0.03925843 = score(doc=6973,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 6973, 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=6973)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon
-
Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
0.03925843 = score(doc=1451,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 1451, 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=1451)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2003 19:27:36
-
Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
0.03925843 = score(doc=2239,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 2239, 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=2239)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 31. 5.2004 19:22:06
-
Witschel, H.F.: Global term weights in distributed environments (2008)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
0.03925843 = score(doc=2096,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 2096, 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=2096)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 1. 8.2008 9:44:22
-
Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
0.03925843 = score(doc=2419,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 2419, 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=2419)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 16.11.2008 16:22:48
-
Campos, L.M. de; Fernández-Luna, J.M.; Huete, J.F.: Implementing relevance feedback in the Bayesian network retrieval model (2003)
0.01
0.006543072 = product of:
0.019629216 = sum of:
0.019629216 = product of:
0.03925843 = sum of:
0.03925843 = weight(_text_:22 in 825) [ClassicSimilarity], result of:
0.03925843 = score(doc=825,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.23214069 = fieldWeight in 825, 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=825)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2003 19:30:19
-
Burgin, R.: ¬The retrieval effectiveness of 5 clustering algorithms as a function of indexing exhaustivity (1995)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 3365) [ClassicSimilarity], result of:
0.03271536 = score(doc=3365,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 3365, 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=3365)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 2.1996 11:20:06
-
Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
0.03271536 = score(doc=5697,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 5697, 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=5697)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 2.1996 13:14:10
-
Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
0.03271536 = score(doc=1428,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 1428, 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=1428)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2003 19:35:46
-
Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
0.03271536 = score(doc=56,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 56, 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=56)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 7.2006 16:32:43
-
Dominich, S.: Mathematical foundations of information retrieval (2001)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 1753) [ClassicSimilarity], result of:
0.03271536 = score(doc=1753,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 1753, 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=1753)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2008 12:26:32
-
Baloh, P.; Desouza, K.C.; Hackney, R.: Contextualizing organizational interventions of knowledge management systems : a design science perspectiveA domain analysis (2012)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 241) [ClassicSimilarity], result of:
0.03271536 = score(doc=241,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 241, 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=241)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 11. 6.2012 14:22:34
-
Soulier, L.; Jabeur, L.B.; Tamine, L.; Bahsoun, W.: On ranking relevant entities in heterogeneous networks using a language-based model (2013)
0.01
0.0054525603 = product of:
0.01635768 = sum of:
0.01635768 = product of:
0.03271536 = sum of:
0.03271536 = weight(_text_:22 in 664) [ClassicSimilarity], result of:
0.03271536 = score(doc=664,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.19345059 = fieldWeight in 664, 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=664)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2013 19:34:49
-
Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004)
0.00
0.0038167923 = product of:
0.011450376 = sum of:
0.011450376 = product of:
0.022900753 = sum of:
0.022900753 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
0.022900753 = score(doc=2509,freq=2.0), product of:
0.16911483 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.048293278 = queryNorm
0.1354154 = fieldWeight in 2509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.02734375 = fieldNorm(doc=2509)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Electronic library. 22(2004) no.2, S.112-120
