-
Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
0.27
0.27029565 = product of:
0.6081652 = sum of:
0.062223002 = product of:
0.186669 = sum of:
0.186669 = weight(_text_:3a in 2514) [ClassicSimilarity], result of:
0.186669 = score(doc=2514,freq=2.0), product of:
0.3321406 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03917671 = 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)
0.26398984 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.26398984 = score(doc=2514,freq=4.0), product of:
0.3321406 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03917671 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.017962547 = weight(_text_:of in 2514) [ClassicSimilarity], result of:
0.017962547 = score(doc=2514,freq=16.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.2932045 = fieldWeight in 2514, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.26398984 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.26398984 = score(doc=2514,freq=4.0), product of:
0.3321406 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03917671 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.44444445 = coord(4/9)
- Abstract
- In this paper, we present two ways to improve the precision of HITS-based algorithms onWeb documents. First, by analyzing the limitations of current HITS-based algorithms, we propose a new weighted HITS-based method that assigns appropriate weights to in-links of root documents. Then, we combine content analysis with HITS-based algorithms and study the effects of four representative relevance scoring methods, VSM, Okapi, TLS, and CDR, using a set of broad topic queries. Our experimental results show that our weighted HITS-based method performs significantly better than Bharat's improved HITS algorithm. When we combine our weighted HITS-based method or Bharat's HITS algorithm with any of the four relevance scoring methods, the combined methods are only marginally better than our weighted HITS-based method. Between the four relevance scoring methods, there is no significant quality difference when they are combined with a HITS-based algorithm.
- 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/.
- Source
- WWW '02: Proceedings of the 11th International Conference on World Wide Web, May 7-11, 2002, Honolulu, Hawaii, USA
-
Falk, H.: Document file searching (1998)
0.06
0.060675584 = product of:
0.18202674 = sum of:
0.010584532 = weight(_text_:of in 2429) [ClassicSimilarity], result of:
0.010584532 = score(doc=2429,freq=2.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.17277241 = fieldWeight in 2429, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=2429)
0.068122506 = weight(_text_:software in 2429) [ClassicSimilarity], result of:
0.068122506 = score(doc=2429,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.43831247 = fieldWeight in 2429, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.078125 = fieldNorm(doc=2429)
0.103319705 = product of:
0.20663941 = sum of:
0.20663941 = weight(_text_:packages in 2429) [ClassicSimilarity], result of:
0.20663941 = score(doc=2429,freq=2.0), product of:
0.2706874 = queryWeight, product of:
6.9093957 = idf(docFreq=119, maxDocs=44218)
0.03917671 = queryNorm
0.7633876 = fieldWeight in 2429, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.9093957 = idf(docFreq=119, maxDocs=44218)
0.078125 = fieldNorm(doc=2429)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- Considers the importance of generating indexes when creating large document files, to facilitate searching, and evaluates 4 commercial document file index creation and searching software packages: QuickFind; Sonar; ZyIndex; and FastFind
-
Wiggins, R.; Matthews, J.A.: Plateaus, peaks, and promises : the Infonortics '98 search engines conference (1998)
0.06
0.05942248 = product of:
0.13370058 = sum of:
0.050336715 = weight(_text_:applications in 5216) [ClassicSimilarity], result of:
0.050336715 = score(doc=5216,freq=2.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.2918479 = fieldWeight in 5216, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.046875 = fieldNorm(doc=5216)
0.017962547 = weight(_text_:of in 5216) [ClassicSimilarity], result of:
0.017962547 = score(doc=5216,freq=16.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.2932045 = fieldWeight in 5216, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=5216)
0.0245278 = weight(_text_:systems in 5216) [ClassicSimilarity], result of:
0.0245278 = score(doc=5216,freq=2.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.2037246 = fieldWeight in 5216, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=5216)
0.040873505 = weight(_text_:software in 5216) [ClassicSimilarity], result of:
0.040873505 = score(doc=5216,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.2629875 = fieldWeight in 5216, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=5216)
0.44444445 = coord(4/9)
- Abstract
- Reports on the Infonortics '98 conference on 'Search Engines and Beyond', held at Boston, Massachusetts, 1-2 April 1998. Presenters included some of the leading developers of search engine technology as well as researchers in the field of information retrieval (IR). Summarizes papers on the following topics: the state of IR today; statistical approaches to IR; the history of enhanced statistical engines and commercial online services; new features in Web search engines; Inktomi full text index services; distributed searching; natural language processing and linguistics-based applications; Northern Light service features; challenges to IR including knowledge management systems using Adaptive Probabilistic Concept Modelling; Verity's Knowledge Organizer product; cross-language retrieval; image analysis products and video processing software; trends in knowledge extraction tools; the state of the information industry; the expectations of end users; and the development of tests for measuring search engine technology
-
Blake, P.: AltaVista and Notes for the web (1996)
0.05
0.048005622 = product of:
0.14401686 = sum of:
0.06711562 = weight(_text_:applications in 4537) [ClassicSimilarity], result of:
0.06711562 = score(doc=4537,freq=2.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.38913056 = fieldWeight in 4537, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.0625 = fieldNorm(doc=4537)
0.022403233 = weight(_text_:of in 4537) [ClassicSimilarity], result of:
0.022403233 = score(doc=4537,freq=14.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.36569026 = fieldWeight in 4537, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=4537)
0.054498006 = weight(_text_:software in 4537) [ClassicSimilarity], result of:
0.054498006 = score(doc=4537,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.35064998 = fieldWeight in 4537, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.0625 = fieldNorm(doc=4537)
0.33333334 = coord(3/9)
- Footnote
- Briefly reviews the AltaVista and Notes search software for searching the WWW. In the case of AltaVista, Digital claims that this web crawler has been crawling the WWW at the rate of 2,5 million pages per day and already accounts for the indexing of 16 million pages and 13.000 newsgroups. Suggests that AltaVista pulls of significantly more on obscure or specialist subjects than rivals like InfoSeek and Excite. concludes with details of IBM's development of the Lotus WWW searcher designed to cope with the increasing complexity of web applications
-
McMurdo, G.: How the Internet was indexed (1995)
0.04
0.038163655 = product of:
0.114490956 = sum of:
0.021999538 = weight(_text_:of in 2411) [ClassicSimilarity], result of:
0.021999538 = score(doc=2411,freq=24.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.3591007 = fieldWeight in 2411, product of:
4.8989797 = tf(freq=24.0), with freq of:
24.0 = termFreq=24.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=2411)
0.034687545 = weight(_text_:systems in 2411) [ClassicSimilarity], result of:
0.034687545 = score(doc=2411,freq=4.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.28811008 = fieldWeight in 2411, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=2411)
0.05780387 = weight(_text_:software in 2411) [ClassicSimilarity], result of:
0.05780387 = score(doc=2411,freq=4.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.3719205 = fieldWeight in 2411, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=2411)
0.33333334 = coord(3/9)
- Abstract
- The scope and characteristics of what may be considered the first three generations of automated Internet indexing systems are identified and described as to their methods of compiling their datasets, their search interfaces and the associated etymological metaphors and mythologies. These three are suggested to be: firstly, the Archie system for single keyword and regular expression searches of the file lists of anonymous ftp sites: secondly, the Veronica system for Boolean keyword in title searches of the world's gopher servers; thirdly, a range of software techniques jnown as robots and search engines, which compile searchable databases of information accessible via the WWW, such as the currently popular Lycos project at Carnegie Mellon University. The present dominance of WWW client software as the preferred interface to Internet information has led to provision of methods of also using the first two systems by this single interface, and these are also noted
- Source
- Journal of information science. 21(1995) no.6, S.479-489
-
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)
0.04
0.0378924 = product of:
0.1136772 = sum of:
0.07118686 = weight(_text_:applications in 1215) [ClassicSimilarity], result of:
0.07118686 = score(doc=1215,freq=4.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.41273528 = fieldWeight in 1215, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.046875 = fieldNorm(doc=1215)
0.017962547 = weight(_text_:of in 1215) [ClassicSimilarity], result of:
0.017962547 = score(doc=1215,freq=16.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.2932045 = fieldWeight in 1215, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=1215)
0.0245278 = weight(_text_:systems in 1215) [ClassicSimilarity], result of:
0.0245278 = score(doc=1215,freq=2.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.2037246 = fieldWeight in 1215, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=1215)
0.33333334 = coord(3/9)
- 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.
-
Gardner, T.; Iannella, R.: Architecture and software solutions (2000)
0.04
0.03675949 = product of:
0.110278465 = sum of:
0.011975031 = weight(_text_:of in 4867) [ClassicSimilarity], result of:
0.011975031 = score(doc=4867,freq=4.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.19546966 = fieldWeight in 4867, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=4867)
0.07707182 = weight(_text_:software in 4867) [ClassicSimilarity], result of:
0.07707182 = score(doc=4867,freq=4.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.49589399 = fieldWeight in 4867, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.0625 = fieldNorm(doc=4867)
0.021231614 = product of:
0.042463228 = sum of:
0.042463228 = weight(_text_:22 in 4867) [ClassicSimilarity], result of:
0.042463228 = score(doc=4867,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = queryNorm
0.30952093 = fieldWeight in 4867, 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=4867)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- The current subject gateways have evolved over time when the discipline of Internet resource discovery was in its infancy. This is reflected by the lack of well-established, light-weight, deployable, easy-to-use, standards for metadata and information retrieval. We provide an introduction to the architecture, standards and software solutions in use by subject gateways, and to the issues that must be addressed to support future subject gateways
- Date
- 22. 6.2002 19:38:24
-
Su, L.T.: ¬A comprehensive and systematic model of user evaluation of Web search engines : I. Theory and background (2003)
0.04
0.035520546 = product of:
0.10656163 = sum of:
0.059322387 = weight(_text_:applications in 5164) [ClassicSimilarity], result of:
0.059322387 = score(doc=5164,freq=4.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.34394607 = fieldWeight in 5164, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.0390625 = fieldNorm(doc=5164)
0.018332949 = weight(_text_:of in 5164) [ClassicSimilarity], result of:
0.018332949 = score(doc=5164,freq=24.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.2992506 = fieldWeight in 5164, product of:
4.8989797 = tf(freq=24.0), with freq of:
24.0 = termFreq=24.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0390625 = fieldNorm(doc=5164)
0.02890629 = weight(_text_:systems in 5164) [ClassicSimilarity], result of:
0.02890629 = score(doc=5164,freq=4.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.24009174 = fieldWeight in 5164, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.0390625 = fieldNorm(doc=5164)
0.33333334 = coord(3/9)
- Abstract
- The project proposes and tests a comprehensive and systematic model of user evaluation of Web search engines. The project contains two parts. Part I describes the background and the model including a set of criteria and measures, and a method for implementation. It includes a literature review for two periods. The early period (1995-1996) portrays the settings for developing the model and the later period (1997-2000) places two applications of the model among contemporary evaluation work. Part II presents one of the applications that investigated the evaluation of four major search engines by 36 undergraduates from three academic disciplines. It reports results from statistical analyses of quantitative data for the entire sample and among disciplines, and content analysis of verbal data containing users' reasons for satisfaction. The proposed model aims to provide systematic feedback to engine developers or service providers for system improvement and to generate useful insight for system design and tool choice. The model can be applied to evaluating other compatible information retrieval systems or information retrieval (IR) techniques. It intends to contribute to developing a theory of relevance that goes beyond topicality to include value and usefulness for designing user-oriented information retrieval systems.
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.13, S.1175-1192
-
Next generation search engines : advanced models for information retrieval (2012)
0.03
0.03466961 = product of:
0.078006625 = sum of:
0.020973632 = weight(_text_:applications in 357) [ClassicSimilarity], result of:
0.020973632 = score(doc=357,freq=2.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.1216033 = fieldWeight in 357, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.01953125 = fieldNorm(doc=357)
0.014968789 = weight(_text_:of in 357) [ClassicSimilarity], result of:
0.014968789 = score(doc=357,freq=64.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.24433708 = fieldWeight in 357, product of:
8.0 = tf(freq=64.0), with freq of:
64.0 = termFreq=64.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.01953125 = fieldNorm(doc=357)
0.025033578 = weight(_text_:systems in 357) [ClassicSimilarity], result of:
0.025033578 = score(doc=357,freq=12.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.20792553 = fieldWeight in 357, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.01953125 = fieldNorm(doc=357)
0.017030627 = weight(_text_:software in 357) [ClassicSimilarity], result of:
0.017030627 = score(doc=357,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.10957812 = fieldWeight in 357, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.01953125 = fieldNorm(doc=357)
0.44444445 = coord(4/9)
- Abstract
- The main goal of this book is to transfer new research results from the fields of advanced computer sciences and information science to the design of new search engines. The readers will have a better idea of the new trends in applied research. The achievement of relevant, organized, sorted, and workable answers- to name but a few - from a search is becoming a daily need for enterprises and organizations, and, to a greater extent, for anyone. It does not consist of getting access to structural information as in standard databases; nor does it consist of searching information strictly by way of a combination of key words. It goes far beyond that. Whatever its modality, the information sought should be identified by the topics it contains, that is to say by its textual, audio, video or graphical contents. This is not a new issue. However, recent technological advances have completely changed the techniques being used. New Web technologies, the emergence of Intranet systems and the abundance of information on the Internet have created the need for efficient search and information access tools.
Recent technological progress in computer science, Web technologies, and constantly evolving information available on the Internet has drastically changed the landscape of search and access to information. Web search has significantly evolved in recent years. In the beginning, web search engines such as Google and Yahoo! were only providing search service over text documents. Aggregated search was one of the first steps to go beyond text search, and was the beginning of a new era for information seeking and retrieval. These days, new web search engines support aggregated search over a number of vertices, and blend different types of documents (e.g., images, videos) in their search results. New search engines employ advanced techniques involving machine learning, computational linguistics and psychology, user interaction and modeling, information visualization, Web engineering, artificial intelligence, distributed systems, social networks, statistical analysis, semantic analysis, and technologies over query sessions. Documents no longer exist on their own; they are connected to other documents, they are associated with users and their position in a social network, and they can be mapped onto a variety of ontologies. Similarly, retrieval tasks have become more interactive and are solidly embedded in a user's geospatial, social, and historical context. It is conjectured that new breakthroughs in information retrieval will not come from smarter algorithms that better exploit existing information sources, but from new retrieval algorithms that can intelligently use and combine new sources of contextual metadata.
With the rapid growth of web-based applications, such as search engines, Facebook, and Twitter, the development of effective and personalized information retrieval techniques and of user interfaces is essential. The amount of shared information and of social networks has also considerably grown, requiring metadata for new sources of information, like Wikipedia and ODP. These metadata have to provide classification information for a wide range of topics, as well as for social networking sites like Twitter, and Facebook, each of which provides additional preferences, tagging information and social contexts. Due to the explosion of social networks and other metadata sources, it is an opportune time to identify ways to exploit such metadata in IR tasks such as user modeling, query understanding, and personalization, to name a few. Although the use of traditional metadata such as html text, web page titles, and anchor text is fairly well-understood, the use of category information, user behavior data, and geographical information is just beginning to be studied. This book is intended for scientists and decision-makers who wish to gain working knowledge about search engines in order to evaluate available solutions and to dialogue with software and data providers.
- Content
- Enthält die Beiträge: Das, A., A. Jain: Indexing the World Wide Web: the journey so far. Ke, W.: Decentralized search and the clustering paradox in large scale information networks. Roux, M.: Metadata for search engines: what can be learned from e-Sciences? Fluhr, C.: Crosslingual access to photo databases. Djioua, B., J.-P. Desclés u. M. Alrahabi: Searching and mining with semantic categories. Ghorbel, H., A. Bahri u. R. Bouaziz: Fuzzy ontologies building platform for Semantic Web: FOB platform. Lassalle, E., E. Lassalle: Semantic models in information retrieval. Berry, M.W., R. Esau u. B. Kiefer: The use of text mining techniques in electronic discovery for legal matters. Sleem-Amer, M., I. Bigorgne u. S. Brizard u.a.: Intelligent semantic search engines for opinion and sentiment mining. Hoeber, O.: Human-centred Web search.
Vert, S.: Extensions of Web browsers useful to knowledge workers. Chen, L.-C.: Next generation search engine for the result clustering technology. Biskri, I., L. Rompré: Using association rules for query reformulation. Habernal, I., M. Konopík u. O. Rohlík: Question answering. Grau, B.: Finding answers to questions, in text collections or Web, in open domain or specialty domains. Berri, J., R. Benlamri: Context-aware mobile search engine. Bouidghaghen, O., L. Tamine: Spatio-temporal based personalization for mobile search. Chaudiron, S., M. Ihadjadene: Studying Web search engines from a user perspective: key concepts and main approaches. Karaman, F.: Artificial intelligence enabled search engines (AIESE) and the implications. Lewandowski, D.: A framework for evaluating the retrieval effectiveness of search engines.
- LCSH
- Information storage and retrieval systems / Research
User interfaces (Computer systems)
- Subject
- Information storage and retrieval systems / Research
User interfaces (Computer systems)
-
Kennedy, S.D.: Dilemmas abound with Internet ads (1996)
0.03
0.034069996 = product of:
0.102209985 = sum of:
0.050336715 = weight(_text_:applications in 6951) [ClassicSimilarity], result of:
0.050336715 = score(doc=6951,freq=2.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.2918479 = fieldWeight in 6951, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.046875 = fieldNorm(doc=6951)
0.010999769 = weight(_text_:of in 6951) [ClassicSimilarity], result of:
0.010999769 = score(doc=6951,freq=6.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.17955035 = fieldWeight in 6951, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=6951)
0.040873505 = weight(_text_:software in 6951) [ClassicSimilarity], result of:
0.040873505 = score(doc=6951,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.2629875 = fieldWeight in 6951, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=6951)
0.33333334 = coord(3/9)
- Abstract
- Examines how the 71,1 million dollars in advertising revenue from 600 Web sites has been gained. 2/3 of this went to only 10 sites, the top 5 of which were Netscape, InfoSeek, Yahoo!, Lycos anc Excite. Offers 5 tips for effective banner advertising on Web pages. Multithreaded parallel search sites such as MetaCrawler and SavvySearch which enable a user to run several search engines simultaneously, pose a threat to advertising. Cyber 411, a new tool, queries 15 different search engines. Another category, software for querying multiple search engines such as WebCompass, willbuild a keyword searchable index with the summary of results which is output as an HTML file. Compares this with similar products including a Netscape product. InfoSeek and Excite offer mini-applications to place a labelled button on the browser's tool-bar to go straight to their respective search engine. VistaPass from AltaVista will run minimized on a task bar
-
Berry, M.W.; Browne, M.: Understanding search engines : mathematical modeling and text retrieval (1999)
0.03
0.028135002 = product of:
0.12660751 = sum of:
0.010999769 = weight(_text_:of in 5777) [ClassicSimilarity], result of:
0.010999769 = score(doc=5777,freq=6.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.17955035 = fieldWeight in 5777, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=5777)
0.11560774 = weight(_text_:software in 5777) [ClassicSimilarity], result of:
0.11560774 = score(doc=5777,freq=16.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.743841 = fieldWeight in 5777, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=5777)
0.22222222 = coord(2/9)
- Abstract
- This book discusses many of the key design issues for building search engines and emphazises the important role that applied mathematics can play in improving information retrieval. The authors discuss not only important data structures, algorithms, and software but also user-centered issues such as interfaces, manual indexing, and document preparation. They also present some of the current problems in information retrieval that many not be familiar to applied mathematicians and computer scientists and some of the driving computational methods (SVD, SDD) for automated conceptual indexing
- Classification
- ST 230 [Informatik # Monographien # Software und -entwicklung # Software allgemein, (Einführung, Lehrbücher, Methoden der Programmierung) Software engineering, Programmentwicklungssysteme, Softwarewerkzeuge]
- RVK
- ST 230 [Informatik # Monographien # Software und -entwicklung # Software allgemein, (Einführung, Lehrbücher, Methoden der Programmierung) Software engineering, Programmentwicklungssysteme, Softwarewerkzeuge]
- Series
- Software, environments, tools; 8
-
Duval, B.K.; Main, L.: Searching on the Net : general overview (1996)
0.03
0.028065749 = product of:
0.084197246 = sum of:
0.008467626 = weight(_text_:of in 7268) [ClassicSimilarity], result of:
0.008467626 = score(doc=7268,freq=2.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.13821793 = fieldWeight in 7268, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=7268)
0.054498006 = weight(_text_:software in 7268) [ClassicSimilarity], result of:
0.054498006 = score(doc=7268,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.35064998 = fieldWeight in 7268, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.0625 = fieldNorm(doc=7268)
0.021231614 = product of:
0.042463228 = sum of:
0.042463228 = weight(_text_:22 in 7268) [ClassicSimilarity], result of:
0.042463228 = score(doc=7268,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = queryNorm
0.30952093 = fieldWeight in 7268, 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=7268)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- First of a 3 part series discussing how to access and use Web search engines on the Internet. Distinguishes between FTP sites, Gopher sites, Usenet News sites and Web sites. Considers subject searching versus keyword; how to improve search strategies and success rates; bookmarks; Yahoo!, Lycos; InfoSeek; Magellan; Excite; Inktomi; HotBot and AltaVista
- Date
- 6. 3.1997 16:22:15
- Source
- Library software review. 15(1996) no.4, S.242-251
-
Price, A.: NOVAGate : a Nordic gateway to electronic resources in the forestry, veterinary and agricultural sciences (2000)
0.03
0.027027255 = product of:
0.08108176 = sum of:
0.014818345 = weight(_text_:of in 4874) [ClassicSimilarity], result of:
0.014818345 = score(doc=4874,freq=8.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.24188137 = fieldWeight in 4874, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=4874)
0.047685754 = weight(_text_:software in 4874) [ClassicSimilarity], result of:
0.047685754 = score(doc=4874,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.30681872 = fieldWeight in 4874, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.0546875 = fieldNorm(doc=4874)
0.018577661 = product of:
0.037155323 = sum of:
0.037155323 = weight(_text_:22 in 4874) [ClassicSimilarity], result of:
0.037155323 = score(doc=4874,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = queryNorm
0.2708308 = fieldWeight in 4874, 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=4874)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- NOVAGate is a subject-based information gateway covering electronic resources in the agricultural, veterinary and related fields. The service, which opened in July 1998, is produced by the veterinary and agricultural libraries of the 5 Nordic countries - Denmark, Finland, Iceland, Norway and Sweden - which serve the NOVA University. The gateway covers Nordic and European resources as well as the resources of international organizations, but being planned is a network of subject gateways which will give access to a wide range of international quality resources within the agricultural, veterinary and related fields. The service uses the ROADS software
- Date
- 22. 6.2002 19:41:00
-
Suchen und Finden im Internet (2007)
0.03
0.026720548 = product of:
0.12024246 = sum of:
0.07118686 = weight(_text_:applications in 484) [ClassicSimilarity], result of:
0.07118686 = score(doc=484,freq=4.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.41273528 = fieldWeight in 484, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.046875 = fieldNorm(doc=484)
0.0490556 = weight(_text_:systems in 484) [ClassicSimilarity], result of:
0.0490556 = score(doc=484,freq=8.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.4074492 = fieldWeight in 484, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=484)
0.22222222 = coord(2/9)
- LCSH
- Business Information Systems
Information Systems Applications (incl.Internet)
- Subject
- Business Information Systems
Information Systems Applications (incl.Internet)
-
Hancock, B.: Subject-specific search engines : using the Harvest system to gather and maintain information on the Internet (1998)
0.03
0.026365494 = product of:
0.07909648 = sum of:
0.0128330635 = weight(_text_:of in 3238) [ClassicSimilarity], result of:
0.0128330635 = score(doc=3238,freq=6.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.20947541 = fieldWeight in 3238, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=3238)
0.047685754 = weight(_text_:software in 3238) [ClassicSimilarity], result of:
0.047685754 = score(doc=3238,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.30681872 = fieldWeight in 3238, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.0546875 = fieldNorm(doc=3238)
0.018577661 = product of:
0.037155323 = sum of:
0.037155323 = weight(_text_:22 in 3238) [ClassicSimilarity], result of:
0.037155323 = score(doc=3238,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = 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)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- The increasing expansion of the Internet has made resources available to users in sometimes unmanageable abundance. To help users manage this proliferation of information, librarians have begun to add URLs to their home pages. As well, specialized search engines are being used to retrieve information from selected sources in aneffort to return pertinent results. Describes the Harvest system which has been used to develop Index Antiquus, a specialized engine, for the classics and mediaeval studies. Presents a working example of how to search Index Antiquus
- Date
- 6. 3.1997 16:22:15
- Source
- Library software review. 17(1998) no.2, S.84-89
-
Chau, M.; Wong, C.H.; Zhou, Y.; Qin, J.; Chen, H.: Evaluating the use of search engine development tools in IT education (2010)
0.03
0.02546304 = product of:
0.07638912 = sum of:
0.041947264 = weight(_text_:applications in 3325) [ClassicSimilarity], result of:
0.041947264 = score(doc=3325,freq=2.0), product of:
0.17247584 = queryWeight, product of:
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.03917671 = queryNorm
0.2432066 = fieldWeight in 3325, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4025097 = idf(docFreq=1471, maxDocs=44218)
0.0390625 = fieldNorm(doc=3325)
0.0140020205 = weight(_text_:of in 3325) [ClassicSimilarity], result of:
0.0140020205 = score(doc=3325,freq=14.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.22855641 = fieldWeight in 3325, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0390625 = fieldNorm(doc=3325)
0.020439833 = weight(_text_:systems in 3325) [ClassicSimilarity], result of:
0.020439833 = score(doc=3325,freq=2.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.1697705 = fieldWeight in 3325, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.0390625 = fieldNorm(doc=3325)
0.33333334 = coord(3/9)
- Abstract
- It is important for education in computer science and information systems to keep up to date with the latest development in technology. With the rapid development of the Internet and the Web, many schools have included Internet-related technologies, such as Web search engines and e-commerce, as part of their curricula. Previous research has shown that it is effective to use search engine development tools to facilitate students' learning. However, the effectiveness of these tools in the classroom has not been evaluated. In this article, we review the design of three search engine development tools, SpidersRUs, Greenstone, and Alkaline, followed by an evaluation study that compared the three tools in the classroom. In the study, 33 students were divided into 13 groups and each group used the three tools to develop three independent search engines in a class project. Our evaluation results showed that SpidersRUs performed better than the two other tools in overall satisfaction and the level of knowledge gained in their learning experience when using the tools for a class project on Internet applications development.
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.2, S.288-299
-
Falk, H.: World Wide Web search and retrieval (1997)
0.03
0.025312053 = product of:
0.11390424 = sum of:
0.010584532 = weight(_text_:of in 6815) [ClassicSimilarity], result of:
0.010584532 = score(doc=6815,freq=2.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.17277241 = fieldWeight in 6815, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=6815)
0.103319705 = product of:
0.20663941 = sum of:
0.20663941 = weight(_text_:packages in 6815) [ClassicSimilarity], result of:
0.20663941 = score(doc=6815,freq=2.0), product of:
0.2706874 = queryWeight, product of:
6.9093957 = idf(docFreq=119, maxDocs=44218)
0.03917671 = queryNorm
0.7633876 = fieldWeight in 6815, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.9093957 = idf(docFreq=119, maxDocs=44218)
0.078125 = fieldNorm(doc=6815)
0.5 = coord(1/2)
0.22222222 = coord(2/9)
- Abstract
- Lists and briefly describes the range of facilities available for searching the WWW, such as search engines, link-following packages and content delivery services. Includes web site information (URLs) with each product and service reviewed
-
Chen, L.-C.: Next generation search engine for the result clustering technology (2012)
0.02
0.024654377 = product of:
0.07396313 = sum of:
0.015556021 = weight(_text_:of in 105) [ClassicSimilarity], result of:
0.015556021 = score(doc=105,freq=12.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.25392252 = fieldWeight in 105, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=105)
0.042483397 = weight(_text_:systems in 105) [ClassicSimilarity], result of:
0.042483397 = score(doc=105,freq=6.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.35286134 = fieldWeight in 105, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=105)
0.015923709 = product of:
0.031847417 = sum of:
0.031847417 = weight(_text_:22 in 105) [ClassicSimilarity], result of:
0.031847417 = score(doc=105,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = queryNorm
0.23214069 = fieldWeight in 105, 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=105)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- Result clustering has recently attracted a lot of attention to provide the users with a succinct overview of relevant search results than traditional search engines. This chapter proposes a mixed clustering method to organize all returned search results into a hierarchical tree structure. The clustering method accomplishes two main tasks, one is label construction and the other is tree building. This chapter uses precision to measure the quality of clustering results. According to the results of experiments, the author preliminarily concluded that the performance of the system is better than many other well-known commercial and academic systems. This chapter makes several contributions. First, it presents a high performance system based on the clustering method. Second, it develops a divisive hierarchical clustering algorithm to organize all returned snippets into hierarchical tree structure. Third, it performs a wide range of experimental analyses to show that almost all commercial systems are significantly better than most current academic systems.
- Date
- 17. 4.2012 15:22:11
-
Duval, B.K.; Main, L.: Searching the Internet : part 2 trail-blazers (1997)
0.02
0.024117745 = product of:
0.07235324 = sum of:
0.015556021 = weight(_text_:of in 858) [ClassicSimilarity], result of:
0.015556021 = score(doc=858,freq=12.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.25392252 = fieldWeight in 858, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=858)
0.040873505 = weight(_text_:software in 858) [ClassicSimilarity], result of:
0.040873505 = score(doc=858,freq=2.0), product of:
0.15541996 = queryWeight, product of:
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.03917671 = queryNorm
0.2629875 = fieldWeight in 858, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9671519 = idf(docFreq=2274, maxDocs=44218)
0.046875 = fieldNorm(doc=858)
0.015923709 = product of:
0.031847417 = sum of:
0.031847417 = weight(_text_:22 in 858) [ClassicSimilarity], result of:
0.031847417 = score(doc=858,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = queryNorm
0.23214069 = fieldWeight in 858, 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=858)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- Presents a guide to searching for information on the Internet covering Research-It; familiar quotations: a collection of passages, phrases and proverbs traced to their sources in ancient and modern literature by John Bartlett; the Internet Public Library Reference Center; SearchERIC Database; Britannica Online; Britannica's Lives; The complete works of William Shakespeare; Flicks/Movie Schedules and Reviews; the Electronic Newsstand; CNN Interactive; Time Warner's Pathfinder; Electronic Newspapers from all 50 States; Yahoo, News; Newspapers; Techweb; ZDNet; the On-line Books Page; Columbia University Bartleby Library; the Children's Literature Web Guide; National Institutes of Health; US Census Bureau; Earthquake Info; US Postal Service Zip+4 Lookup; the Federal Web Locator; World Wide Web Virtual Library; US Government Information Sources; Index of the Constitution of the US; US States Code; Find California Code; Dearch for Bills; California Tenant's Rights; The Online Career Center; QuickAID Home Page; City.Net; Netscape's Destinations Button; International Telephone Directory; World Alumni Net; Archives of Adoptees and Birth Parents; and World Wide Registry Matching Adoptees with Birth Parents
- Date
- 6. 3.1997 16:22:15
- Source
- Library software review. 16(1997) no.2, S.89-98
-
Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003)
0.02
0.023891404 = product of:
0.07167421 = sum of:
0.021062955 = weight(_text_:of in 2717) [ClassicSimilarity], result of:
0.021062955 = score(doc=2717,freq=22.0), product of:
0.061262865 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.03917671 = queryNorm
0.34381276 = fieldWeight in 2717, product of:
4.690416 = tf(freq=22.0), with freq of:
22.0 = termFreq=22.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=2717)
0.034687545 = weight(_text_:systems in 2717) [ClassicSimilarity], result of:
0.034687545 = score(doc=2717,freq=4.0), product of:
0.12039685 = queryWeight, product of:
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.03917671 = queryNorm
0.28811008 = fieldWeight in 2717, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.0731742 = idf(docFreq=5561, maxDocs=44218)
0.046875 = fieldNorm(doc=2717)
0.015923709 = product of:
0.031847417 = sum of:
0.031847417 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
0.031847417 = score(doc=2717,freq=2.0), product of:
0.13719016 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03917671 = 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)
0.5 = coord(1/2)
0.33333334 = coord(3/9)
- Abstract
- Previous work an search-engine design has indicated that information-seekers may benefit from being given the opportunity to exploit multiple sources of evidence of document relatedness. Few existing systems, however, give users more than minimal control over the selections that may be made among methods of exploitation. By applying the methods of "document network analysis" (DNA), a unifying, graph-theoretic model of content-, collaboration-, and context-based systems (CCC) may be developed in which the nature of the similarities between types of document relatedness and document ranking are clarified. The usefulness of the approach to system design suggested by this model may be tested by constructing and evaluating a prototype system (UCXtra) that allows searchers to maintain control over the multiple ways in which document collections may be ranked and re-ranked.
- 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
