Search (51 results, page 2 of 3)

  • × language_ss:"e"
  • × theme_ss:"Retrievalalgorithmen"
  1. Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998) 0.01 
    0.010792375 = product of:
  0.02158475 = sum of:
    0.02158475 = product of:
      0.0431695 = sum of:
        0.0431695 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
          0.0431695 = score(doc=1319,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    1. 8.1996 22:08:06
  2. Zhu, B.; Chen, H.: Validating a geographical image retrieval system (2000) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 4769) [ClassicSimilarity], result of:
          0.037876792 = score(doc=4769,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 4769, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=4769)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  3. Drucker, H.; Shahrary, B.; Gibbon, D.C.: Support vector machines : relevance feedback and information retrieval (2002) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 2581) [ClassicSimilarity], result of:
          0.037876792 = score(doc=2581,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 2581, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=2581)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  4. Dominich, S.; Skrop, A.: PageRank and interaction information retrieval (2005) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 3268) [ClassicSimilarity], result of:
          0.037876792 = score(doc=3268,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 3268, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=3268)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    The PageRank method is used by the Google Web search engine to compute the importance of Web pages. Two different views have been developed for the Interpretation of the PageRank method and values: (a) stochastic (random surfer): the PageRank values can be conceived as the steady-state distribution of a Markov chain, and (b) algebraic: the PageRank values form the eigenvector corresponding to eigenvalue 1 of the Web link matrix. The Interaction Information Retrieval (1**2 R) method is a nonclassical information retrieval paradigm, which represents a connectionist approach based an dynamic systems. In the present paper, a different Interpretation of PageRank is proposed, namely, a dynamic systems viewpoint, by showing that the PageRank method can be formally interpreted as a particular case of the Interaction Information Retrieval method; and thus, the PageRank values may be interpreted as neutral equilibrium points of the Web.
  5. Lin, J.; Katz, B.: Building a reusable test collection for question answering (2006) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 5045) [ClassicSimilarity], result of:
          0.037876792 = score(doc=5045,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 5045, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=5045)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  6. Cecchini, R.L.; Lorenzetti, C.M.; Maguitman, A.G.; Brignole, N.B.: Multiobjective evolutionary algorithms for context-based search (2010) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 3482) [ClassicSimilarity], result of:
          0.037876792 = score(doc=3482,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 3482, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=3482)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Formulating high-quality queries is a key aspect of context-based search. However, determining the effectiveness of a query is challenging because multiple objectives, such as high precision and high recall, are usually involved. In this work, we study techniques that can be applied to evolve contextualized queries when the criteria for determining query quality are based on multiple objectives. We report on the results of three different strategies for evolving queries: (a) single-objective, (b) multiobjective with Pareto-based ranking, and (c) multiobjective with aggregative ranking. After a comprehensive evaluation with a large set of topics, we discuss the limitations of the single-objective approach and observe that both the Pareto-based and aggregative strategies are highly effective for evolving topical queries. In particular, our experiments lead us to conclude that the multiobjective techniques are superior to a baseline as well as to well-known and ad hoc query reformulation techniques.
  7. Van der Veer Martens, B.; Fleet, C. van: Opening the black box of "relevance work" : a domain analysis (2012) 0.01 
    0.009469198 = product of:
  0.018938396 = sum of:
    0.018938396 = product of:
      0.037876792 = sum of:
        0.037876792 = weight(_text_:b in 247) [ClassicSimilarity], result of:
          0.037876792 = score(doc=247,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.23486741 = fieldWeight in 247, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.046875 = fieldNorm(doc=247)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  8. Joss, M.W.; Wszola, S.: ¬The engines that can : text search and retrieval software, their strategies, and vendors (1996) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 5123) [ClassicSimilarity], result of:
          0.037002426 = score(doc=5123,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    12. 9.1996 13:56:22
  9. Kelledy, F.; Smeaton, A.F.: Signature files and beyond (1996) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 6973) [ClassicSimilarity], result of:
          0.037002426 = score(doc=6973,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    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
  10. 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 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
          0.037002426 = score(doc=1451,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:27:36
  11. 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 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
          0.037002426 = score(doc=2239,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    31. 5.2004 19:22:06
  12. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
          0.037002426 = score(doc=2717,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    11. 9.2004 17:32:22
  13. Witschel, H.F.: Global term weights in distributed environments (2008) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
          0.037002426 = score(doc=2096,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    1. 8.2008 9:44:22
  14. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
          0.037002426 = score(doc=2419,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    16.11.2008 16:22:48
  15. Campos, L.M. de; Fernández-Luna, J.M.; Huete, J.F.: Implementing relevance feedback in the Bayesian network retrieval model (2003) 0.01 
    0.009250606 = product of:
  0.018501213 = sum of:
    0.018501213 = product of:
      0.037002426 = sum of:
        0.037002426 = weight(_text_:22 in 825) [ClassicSimilarity], result of:
          0.037002426 = score(doc=825,freq=2.0), product of:
            0.15939656 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045518078 = 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)
  0.5 = coord(1/2)
    Date
    22. 3.2003 19:30:19
  16. Henzinger, M.R.: Link analysis in Web information retrieval (2000) 0.01 
    0.008927646 = product of:
  0.017855292 = sum of:
    0.017855292 = product of:
      0.035710584 = sum of:
        0.035710584 = weight(_text_:b in 801) [ClassicSimilarity], result of:
          0.035710584 = score(doc=801,freq=4.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.22143513 = fieldWeight in 801, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.03125 = fieldNorm(doc=801)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Content
    The goal of information retrieval is to find all documents relevant for a user query in a collection of documents. Decades of research in information retrieval were successful in developing and refining techniques that are solely word-based (see e.g., [2]). With the advent of the web new sources of information became available, one of them being the hyperlinks between documents and records of user behavior. To be precise, hypertexts (i.e., collections of documents connected by hyperlinks) have existed and have been studied for a long time. What was new was the large number of hyperlinks created by independent individuals. Hyperlinks provide a valuable source of information for web information retrieval as we will show in this article. This area of information retrieval is commonly called link analysis. Why would one expect hyperlinks to be useful? Ahyperlink is a reference of a web page B that is contained in a web page A. When the hyperlink is clicked on in a web browser, the browser displays page B. This functionality alone is not helpful for web information retrieval. However, the way hyperlinks are typically used by authors of web pages can give them valuable information content. Typically, authors create links because they think they will be useful for the readers of the pages. Thus, links are usually either navigational aids that, for example, bring the reader back to the homepage of the site, or links that point to pages whose content augments the content of the current page. The second kind of links tend to point to high-quality pages that might be on the same topic as the page containing the link.
  17. Chen, H.; Lally, A.M.; Zhu, B.; Chau, M.: HelpfulMed : Intelligent searching for medical information over the Internet (2003) 0.01 
    0.007890998 = product of:
  0.015781997 = sum of:
    0.015781997 = product of:
      0.031563994 = sum of:
        0.031563994 = weight(_text_:b in 1615) [ClassicSimilarity], result of:
          0.031563994 = score(doc=1615,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.19572285 = fieldWeight in 1615, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1615)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  18. Chen, Z.; Meng, X.; Fowler, R.H.; Zhu, B.: Real-time adaptive feature and document learning for Web search (2001) 0.01 
    0.007890998 = product of:
  0.015781997 = sum of:
    0.015781997 = product of:
      0.031563994 = sum of:
        0.031563994 = weight(_text_:b in 5209) [ClassicSimilarity], result of:
          0.031563994 = score(doc=5209,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.19572285 = fieldWeight in 5209, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5209)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  19. Dannenberg, R.B.; Birmingham, W.P.; Pardo, B.; Hu, N.; Meek, C.; Tzanetakis, G.: ¬A comparative evaluation of search techniques for query-by-humming using the MUSART testbed (2007) 0.01 
    0.007890998 = product of:
  0.015781997 = sum of:
    0.015781997 = product of:
      0.031563994 = sum of:
        0.031563994 = weight(_text_:b in 269) [ClassicSimilarity], result of:
          0.031563994 = score(doc=269,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.19572285 = fieldWeight in 269, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.0390625 = fieldNorm(doc=269)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
  20. Chen, Z.; Fu, B.: On the complexity of Rocchio's similarity-based relevance feedback algorithm (2007) 0.01 
    0.007890998 = product of:
  0.015781997 = sum of:
    0.015781997 = product of:
      0.031563994 = sum of:
        0.031563994 = weight(_text_:b in 578) [ClassicSimilarity], result of:
          0.031563994 = score(doc=578,freq=2.0), product of:
            0.16126883 = queryWeight, product of:
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.045518078 = queryNorm
            0.19572285 = fieldWeight in 578, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.542962 = idf(docFreq=3476, maxDocs=44218)
              0.0390625 = fieldNorm(doc=578)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Years

Types

  • a 50
  • m 1
  • More… Less…

Themes

Subjects

Classifications