-
López-Huertas, M.J.; Barité Roqueta, M.-G.: Knowledge representation and organization of gender studies on the Internet : towards integration (2003)
0.05
0.054952092 = product of:
0.109904185 = sum of:
0.100147545 = weight(_text_:representation in 2751) [ClassicSimilarity], result of:
0.100147545 = score(doc=2751,freq=8.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.50834286 = fieldWeight in 2751, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.0390625 = fieldNorm(doc=2751)
0.009756638 = product of:
0.029269911 = sum of:
0.029269911 = weight(_text_:29 in 2751) [ClassicSimilarity], result of:
0.029269911 = score(doc=2751,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.19432661 = fieldWeight in 2751, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=2751)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Abstract
- This study analyzes the models of representation and organization of knowledge surrounding Gender. In addition to assessing their visibility, we analyze the thematic models and the conceptual treatment of Gender in search engine directories with wide coverage in different parts of the world. Eight seach engines were selected, two of them international (Yahoo, Google), one an international affiliate (Yahoo España), and five local ones (three from the Mercosur, and one apiece from Africa and Asia). The research was done an two levels: a) knowledge representation through the quantitative and qualitative analysis of the terms of Gender; b) knowledge organization, through the structural and semantic-conceptual analysis of the search engines. The results express a clear terminological and structural supremacy of the international search engines, as well a lack of correspondence overall among the terminologies, relative visibility, and diffusion of matters of Gender, leading to considerable difficulties in achieving consistent access to specific information.
- Date
- 12. 9.2004 13:12:29
- Source
- Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
-
Serrano Cobos, J.; Quintero Orta, A.: Design, development and management of an information recovery system for an Internet Website : from documentary theory to practice (2003)
0.04
0.038224913 = product of:
0.07644983 = sum of:
0.060088523 = weight(_text_:representation in 2726) [ClassicSimilarity], result of:
0.060088523 = score(doc=2726,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.3050057 = fieldWeight in 2726, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.046875 = fieldNorm(doc=2726)
0.016361302 = product of:
0.049083903 = sum of:
0.049083903 = weight(_text_:theory in 2726) [ClassicSimilarity], result of:
0.049083903 = score(doc=2726,freq=2.0), product of:
0.1780563 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.042818543 = queryNorm
0.27566507 = fieldWeight in 2726, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.046875 = fieldNorm(doc=2726)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Source
- Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
-
Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003)
0.04
0.03584558 = product of:
0.07169116 = sum of:
0.060088523 = weight(_text_:representation in 2717) [ClassicSimilarity], result of:
0.060088523 = score(doc=2717,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.3050057 = fieldWeight in 2717, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.046875 = fieldNorm(doc=2717)
0.011602643 = product of:
0.034807928 = sum of:
0.034807928 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
0.034807928 = score(doc=2717,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.23214069 = fieldWeight in 2717, 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=2717)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Date
- 11. 9.2004 17:32:22
- Source
- Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
-
Hoeber, O.; Yang, X.D.: Evaluating WordBars in exploratory Web search scenarios (2008)
0.03
0.029915206 = product of:
0.059830412 = sum of:
0.050073773 = weight(_text_:representation in 2046) [ClassicSimilarity], result of:
0.050073773 = score(doc=2046,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.25417143 = fieldWeight in 2046, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.0390625 = fieldNorm(doc=2046)
0.009756638 = product of:
0.029269911 = sum of:
0.029269911 = weight(_text_:29 in 2046) [ClassicSimilarity], result of:
0.029269911 = score(doc=2046,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.19432661 = fieldWeight in 2046, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=2046)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Abstract
- Web searchers commonly have difficulties crafting queries to fulfill their information needs; even after they are able to craft a query, they often find it challenging to evaluate the results of their Web searches. Sources of these problems include the lack of support for constructing and refining queries, and the static nature of the list-based representations of Web search results. WordBars has been developed to assist users in their Web search and exploration tasks. This system provides a visual representation of the frequencies of the terms found in the first 100 document surrogates returned from an initial query, in the form of a histogram. Exploration of the search results is supported through term selection in the histogram, resulting in a re-sorting of the search results based on the use of the selected terms in the document surrogates. Terms from the histogram can be easily added or removed from the query, generating a new set of search results. Examples illustrate how WordBars can provide valuable support for query refinement and search results exploration, both when vague and specific initial queries are provided. User evaluations with both expert and intermediate Web searchers illustrate the benefits of the interactive exploration features of WordBars in terms of effectiveness as well as subjective measures. Although differences were found in the demographics of these two user groups, both were able to benefit from the features of WordBars.
- Date
- 29. 7.2008 15:30:02
-
Garcés, P.J.; Olivas, J.A.; Romero, F.P.: Concept-matching IR systems versus word-matching information retrieval systems : considering fuzzy interrelations for indexing Web pages (2006)
0.03
0.029871322 = product of:
0.059742644 = sum of:
0.050073773 = weight(_text_:representation in 5288) [ClassicSimilarity], result of:
0.050073773 = score(doc=5288,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.25417143 = fieldWeight in 5288, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.0390625 = fieldNorm(doc=5288)
0.00966887 = product of:
0.02900661 = sum of:
0.02900661 = weight(_text_:22 in 5288) [ClassicSimilarity], result of:
0.02900661 = score(doc=5288,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.19345059 = fieldWeight in 5288, 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=5288)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Abstract
- This article presents a semantic-based Web retrieval system that is capable of retrieving the Web pages that are conceptually related to the implicit concepts of the query. The concept of concept is managed from a fuzzy point of view by means of semantic areas. In this context, the proposed system improves most search engines that are based on matching words. The key of the system is to use a new version of the Fuzzy Interrelations and Synonymy-Based Concept Representation Model (FIS-CRM) to extract and represent the concepts contained in both the Web pages and the user query. This model, which was integrated into other tools such as the Fuzzy Interrelations and Synonymy based Searcher (FISS) metasearcher and the fz-mail system, considers the fuzzy synonymy and the fuzzy generality interrelations as a means of representing word interrelations (stored in a fuzzy synonymy dictionary and ontologies). The new version of the model, which is based on the study of the cooccurrences of synonyms, integrates a soft method for disambiguating word senses. This method also considers the context of the word to be disambiguated and the thematic ontologies and sets of synonyms stored in the dictionary.
- Date
- 22. 7.2006 17:14:12
-
Sauer, D.: Alles schneller finden (2001)
0.02
0.023466839 = product of:
0.093867354 = sum of:
0.093867354 = product of:
0.14080103 = sum of:
0.082787804 = weight(_text_:29 in 6835) [ClassicSimilarity], result of:
0.082787804 = score(doc=6835,freq=4.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.5496386 = fieldWeight in 6835, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=6835)
0.05801322 = weight(_text_:22 in 6835) [ClassicSimilarity], result of:
0.05801322 = score(doc=6835,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.38690117 = fieldWeight in 6835, 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=6835)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 1. 8.1997 14:03:29
11.11.2001 17:25:22
- Source
- Com!online. 2001, H.12, S.24-29
-
Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013)
0.02
0.02316068 = product of:
0.09264272 = sum of:
0.09264272 = product of:
0.13896407 = sum of:
0.0925535 = weight(_text_:theory in 1149) [ClassicSimilarity], result of:
0.0925535 = score(doc=1149,freq=4.0), product of:
0.1780563 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.042818543 = queryNorm
0.51979905 = fieldWeight in 1149, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.0625 = fieldNorm(doc=1149)
0.04641057 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
0.04641057 = score(doc=1149,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.30952093 = fieldWeight in 1149, 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=1149)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Abstract
- This paper presents a test of the validity of using Google Scholar to evaluate the publications of researchers by comparing the premises on which its search engine, PageRank, is based, to those of Garfield's theory of citation indexing. It finds that the premises are identical and that PageRank and Garfield's theory of citation indexing validate each other.
- Date
- 17.12.2013 11:02:22
-
Assadi, H.; Beauvisage, T.: ¬A comparative study of six french-speaking Web directories (2003)
0.02
0.0212445 = product of:
0.084978 = sum of:
0.084978 = weight(_text_:representation in 2723) [ClassicSimilarity], result of:
0.084978 = score(doc=2723,freq=4.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.4313432 = fieldWeight in 2723, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.046875 = fieldNorm(doc=2723)
0.25 = coord(1/4)
- Abstract
- This paper presents a comparative study of six French-language Web directories (MSN, Nomade, Open Directory, Voila, Voila Pages Perso, and Yahoo). The study focuses an the quantitative and qualitative aspects of the organization of these directories, and an the way in which they describe sites. It reveals a wide variety of structures, content and organizational principles. In this respect, Web directories do not correspond to classic theories of classification. They highlight the difficulty of proposing a structured representation of the heterogeneous content of the Web.
- Source
- Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
-
Langville, A.N.; Meyer, C.D.: Google's PageRank and beyond : the science of search engine rankings (2006)
0.02
0.020806724 = product of:
0.04161345 = sum of:
0.030044261 = weight(_text_:representation in 6) [ClassicSimilarity], result of:
0.030044261 = score(doc=6,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.15250285 = fieldWeight in 6, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.0234375 = fieldNorm(doc=6)
0.011569187 = product of:
0.03470756 = sum of:
0.03470756 = weight(_text_:theory in 6) [ClassicSimilarity], result of:
0.03470756 = score(doc=6,freq=4.0), product of:
0.1780563 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.042818543 = queryNorm
0.19492465 = fieldWeight in 6, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.0234375 = fieldNorm(doc=6)
0.33333334 = coord(1/3)
0.5 = coord(2/4)
- Content
- Inhalt: Chapter 1. Introduction to Web Search Engines: 1.1 A Short History of Information Retrieval - 1.2 An Overview of Traditional Information Retrieval - 1.3 Web Information Retrieval Chapter 2. Crawling, Indexing, and Query Processing: 2.1 Crawling - 2.2 The Content Index - 2.3 Query Processing Chapter 3. Ranking Webpages by Popularity: 3.1 The Scene in 1998 - 3.2 Two Theses - 3.3 Query-Independence Chapter 4. The Mathematics of Google's PageRank: 4.1 The Original Summation Formula for PageRank - 4.2 Matrix Representation of the Summation Equations - 4.3 Problems with the Iterative Process - 4.4 A Little Markov Chain Theory - 4.5 Early Adjustments to the Basic Model - 4.6 Computation of the PageRank Vector - 4.7 Theorem and Proof for Spectrum of the Google Matrix Chapter 5. Parameters in the PageRank Model: 5.1 The a Factor - 5.2 The Hyperlink Matrix H - 5.3 The Teleportation Matrix E Chapter 6. The Sensitivity of PageRank; 6.1 Sensitivity with respect to alpha - 6.2 Sensitivity with respect to H - 6.3 Sensitivity with respect to vT - 6.4 Other Analyses of Sensitivity - 6.5 Sensitivity Theorems and Proofs Chapter 7. The PageRank Problem as a Linear System: 7.1 Properties of (I - alphaS) - 7.2 Properties of (I - alphaH) - 7.3 Proof of the PageRank Sparse Linear System Chapter 8. Issues in Large-Scale Implementation of PageRank: 8.1 Storage Issues - 8.2 Convergence Criterion - 8.3 Accuracy - 8.4 Dangling Nodes - 8.5 Back Button Modeling
Chapter 9. Accelerating the Computation of PageRank: 9.1 An Adaptive Power Method - 9.2 Extrapolation - 9.3 Aggregation - 9.4 Other Numerical Methods Chapter 10. Updating the PageRank Vector: 10.1 The Two Updating Problems and their History - 10.2 Restarting the Power Method - 10.3 Approximate Updating Using Approximate Aggregation - 10.4 Exact Aggregation - 10.5 Exact vs. Approximate Aggregation - 10.6 Updating with Iterative Aggregation - 10.7 Determining the Partition - 10.8 Conclusions Chapter 11. The HITS Method for Ranking Webpages: 11.1 The HITS Algorithm - 11.2 HITS Implementation - 11.3 HITS Convergence - 11.4 HITS Example - 11.5 Strengths and Weaknesses of HITS - 11.6 HITS's Relationship to Bibliometrics - 11.7 Query-Independent HITS - 11.8 Accelerating HITS - 11.9 HITS Sensitivity Chapter 12. Other Link Methods for Ranking Webpages: 12.1 SALSA - 12.2 Hybrid Ranking Methods - 12.3 Rankings based on Traffic Flow Chapter 13. The Future of Web Information Retrieval: 13.1 Spam - 13.2 Personalization - 13.3 Clustering - 13.4 Intelligent Agents - 13.5 Trends and Time-Sensitive Search - 13.6 Privacy and Censorship - 13.7 Library Classification Schemes - 13.8 Data Fusion Chapter 14. Resources for Web Information Retrieval: 14.1 Resources for Getting Started - 14.2 Resources for Serious Study Chapter 15. The Mathematics Guide: 15.1 Linear Algebra - 15.2 Perron-Frobenius Theory - 15.3 Markov Chains - 15.4 Perron Complementation - 15.5 Stochastic Complementation - 15.6 Censoring - 15.7 Aggregation - 15.8 Disaggregation
-
Loeper, D. von: Sherlock Holmes im Netz (1997)
0.02
0.019425508 = product of:
0.07770203 = sum of:
0.07770203 = product of:
0.11655304 = sum of:
0.058539823 = weight(_text_:29 in 6566) [ClassicSimilarity], result of:
0.058539823 = score(doc=6566,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.38865322 = fieldWeight in 6566, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=6566)
0.05801322 = weight(_text_:22 in 6566) [ClassicSimilarity], result of:
0.05801322 = score(doc=6566,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.38690117 = fieldWeight in 6566, 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=6566)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 22. 2.1997 19:50:29
-
Baeza-Yates, R.; Hurtado, C.; Mendoza, M.: Improving search engines by query clustering (2007)
0.02
0.017525818 = product of:
0.07010327 = sum of:
0.07010327 = weight(_text_:representation in 601) [ClassicSimilarity], result of:
0.07010327 = score(doc=601,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.35583997 = fieldWeight in 601, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.0546875 = fieldNorm(doc=601)
0.25 = coord(1/4)
- Abstract
- In this paper, we present a framework for clustering Web search engine queries whose aim is to identify groups of queries used to search for similar information on the Web. The framework is based on a novel term vector model of queries that integrates user selections and the content of selected documents extracted from the logs of a search engine. The query representation obtained allows us to treat query clustering similarly to standard document clustering. We study the application of the clustering framework to two problems: relevance ranking boosting and query recommendation. Finally, we evaluate with experiments the effectiveness of our approach.
-
Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
0.02
0.017001798 = product of:
0.06800719 = sum of:
0.06800719 = product of:
0.20402157 = sum of:
0.20402157 = weight(_text_:3a in 2514) [ClassicSimilarity], result of:
0.20402157 = score(doc=2514,freq=2.0), product of:
0.36301607 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.042818543 = queryNorm
0.56201804 = fieldWeight in 2514, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Content
- Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
-
Lewandowski, D.: Alles nur noch Google? : Entwicklungen im Bereich der WWW-Suchmaschinen (2002)
0.02
0.015540405 = product of:
0.06216162 = sum of:
0.06216162 = product of:
0.09324243 = sum of:
0.046831857 = weight(_text_:29 in 997) [ClassicSimilarity], result of:
0.046831857 = score(doc=997,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.31092256 = fieldWeight in 997, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=997)
0.04641057 = weight(_text_:22 in 997) [ClassicSimilarity], result of:
0.04641057 = score(doc=997,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.30952093 = fieldWeight in 997, 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=997)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 29. 9.2002 18:49:22
-
Becker, F.: Internet-Suchmaschinen : Funktionsweise und Beurteilung (1999)
0.02
0.015540405 = product of:
0.06216162 = sum of:
0.06216162 = product of:
0.09324243 = sum of:
0.046831857 = weight(_text_:29 in 1770) [ClassicSimilarity], result of:
0.046831857 = score(doc=1770,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.31092256 = fieldWeight in 1770, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=1770)
0.04641057 = weight(_text_:22 in 1770) [ClassicSimilarity], result of:
0.04641057 = score(doc=1770,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.30952093 = fieldWeight in 1770, 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=1770)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 23.10.1996 17:26:29
22. 3.2008 14:04:11
-
Warnick, W.L.; Leberman, A.; Scott, R.L.; Spence, K.J.; Johnsom, L.A.; Allen, V.S.: Searching the deep Web : directed query engine applications at the Department of Energy (2001)
0.02
0.015022131 = product of:
0.060088523 = sum of:
0.060088523 = weight(_text_:representation in 1215) [ClassicSimilarity], result of:
0.060088523 = score(doc=1215,freq=2.0), product of:
0.19700786 = queryWeight, product of:
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.042818543 = queryNorm
0.3050057 = fieldWeight in 1215, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.600994 = idf(docFreq=1206, maxDocs=44218)
0.046875 = fieldNorm(doc=1215)
0.25 = coord(1/4)
- Abstract
- Directed Query Engines, an emerging class of search engine specifically designed to access distributed resources on the deep web, offer the opportunity to create inexpensive digital libraries. Already, one such engine, Distributed Explorer, has been used to select and assemble high quality information resources and incorporate them into publicly available systems for the physical sciences. By nesting Directed Query Engines so that one query launches several other engines in a cascading fashion, enormous virtual collections may soon be assembled to form a comprehensive information infrastructure for the physical sciences. Once a Directed Query Engine has been configured for a set of information resources, distributed alerts tools can provide patrons with personalized, profile-based notices of recent additions to any of the selected resources. Due to the potentially enormous size and scope of Directed Query Engine applications, consideration must be given to issues surrounding the representation of large quantities of information from multiple, heterogeneous sources.
-
Marchiori, M.: ¬The quest for correct information on the Web : hyper search engines (1997)
0.01
0.0135978535 = product of:
0.054391414 = sum of:
0.054391414 = product of:
0.08158712 = sum of:
0.040977873 = weight(_text_:29 in 7453) [ClassicSimilarity], result of:
0.040977873 = score(doc=7453,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.27205724 = fieldWeight in 7453, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=7453)
0.04060925 = weight(_text_:22 in 7453) [ClassicSimilarity], result of:
0.04060925 = score(doc=7453,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.2708308 = fieldWeight in 7453, 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=7453)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 1. 8.1996 22:08:06
- Source
- Computer networks and ISDN systems. 29(1997) no.8, S.1225-1235
-
Chang, C.-H.; Hsu, C.-C.: Customizable multi-engine search tool with clustering (1997)
0.01
0.0135978535 = product of:
0.054391414 = sum of:
0.054391414 = product of:
0.08158712 = sum of:
0.040977873 = weight(_text_:29 in 2670) [ClassicSimilarity], result of:
0.040977873 = score(doc=2670,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.27205724 = fieldWeight in 2670, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=2670)
0.04060925 = weight(_text_:22 in 2670) [ClassicSimilarity], result of:
0.04060925 = score(doc=2670,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.2708308 = fieldWeight in 2670, 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=2670)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 1. 8.1996 22:08:06
- Source
- Computer networks and ISDN systems. 29(1997) no.8, S.1217-1224
-
Hancock, B.: Subject-specific search engines : using the Harvest system to gather and maintain information on the Internet (1998)
0.01
0.0135978535 = product of:
0.054391414 = sum of:
0.054391414 = product of:
0.08158712 = sum of:
0.040977873 = weight(_text_:29 in 3238) [ClassicSimilarity], result of:
0.040977873 = score(doc=3238,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.27205724 = fieldWeight in 3238, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=3238)
0.04060925 = weight(_text_:22 in 3238) [ClassicSimilarity], result of:
0.04060925 = score(doc=3238,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.2708308 = fieldWeight in 3238, 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=3238)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 6. 3.1997 16:22:15
5. 3.1999 19:29:26
-
Zhitomirsky-Geffet, M.; Bar-Ilan, J.; Levene, M.: Analysis of change in users' assessment of search results over time (2017)
0.01
0.011695528 = product of:
0.046782114 = sum of:
0.046782114 = product of:
0.07017317 = sum of:
0.040903255 = weight(_text_:theory in 3593) [ClassicSimilarity], result of:
0.040903255 = score(doc=3593,freq=2.0), product of:
0.1780563 = queryWeight, product of:
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.042818543 = queryNorm
0.2297209 = fieldWeight in 3593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1583924 = idf(docFreq=1878, maxDocs=44218)
0.0390625 = fieldNorm(doc=3593)
0.029269911 = weight(_text_:29 in 3593) [ClassicSimilarity], result of:
0.029269911 = score(doc=3593,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.19432661 = fieldWeight in 3593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=3593)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Abstract
- We present the first systematic study of the influence of time on user judgements for rankings and relevance grades of web search engine results. The goal of this study is to evaluate the change in user assessment of search results and explore how users' judgements change. To this end, we conducted a large-scale user study with 86 participants who evaluated 2 different queries and 4 diverse result sets twice with an interval of 2 months. To analyze the results we investigate whether 2 types of patterns of user behavior from the theory of categorical thinking hold for the case of evaluation of search results: (a) coarseness and (b) locality. To quantify these patterns we devised 2 new measures of change in user judgements and distinguish between local (when users swap between close ranks and relevance values) and nonlocal changes. Two types of judgements were considered in this study: (a) relevance on a 4-point scale, and (b) ranking on a 10-point scale without ties. We found that users tend to change their judgements of the results over time in about 50% of cases for relevance and in 85% of cases for ranking. However, the majority of these changes were local.
- Date
- 16.11.2017 13:33:29
-
Carrière, S.J.; Kazman, R.: Webquery : searching and visualising the Web through connectivity (1997)
0.01
0.011655304 = product of:
0.046621215 = sum of:
0.046621215 = product of:
0.06993182 = sum of:
0.035123892 = weight(_text_:29 in 2674) [ClassicSimilarity], result of:
0.035123892 = score(doc=2674,freq=2.0), product of:
0.15062225 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.042818543 = queryNorm
0.23319192 = fieldWeight in 2674, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=2674)
0.034807928 = weight(_text_:22 in 2674) [ClassicSimilarity], result of:
0.034807928 = score(doc=2674,freq=2.0), product of:
0.14994325 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.042818543 = queryNorm
0.23214069 = fieldWeight in 2674, 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=2674)
0.6666667 = coord(2/3)
0.25 = coord(1/4)
- Date
- 1. 8.1996 22:08:06
- Source
- Computer networks and ISDN systems. 29(1997) no.8, S.1257-1267
