Search (25 results, page 1 of 2)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"Retrievalalgorithmen"
  1. Furner, J.: ¬A unifying model of document relatedness for hybrid search engines (2003) 0.03
    0.032694243 = product of:
      0.09808272 = sum of:
        0.09808272 = sum of:
          0.058824293 = weight(_text_:2002 in 2717) [ClassicSimilarity], result of:
            0.058824293 = score(doc=2717,freq=2.0), product of:
              0.20701107 = queryWeight, product of:
                4.28654 = idf(docFreq=1652, maxDocs=44218)
                0.048293278 = queryNorm
              0.28416014 = fieldWeight in 2717, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.28654 = idf(docFreq=1652, maxDocs=44218)
                0.046875 = fieldNorm(doc=2717)
          0.03925843 = weight(_text_:22 in 2717) [ClassicSimilarity], result of:
            0.03925843 = score(doc=2717,freq=2.0), product of:
              0.16911483 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.048293278 = 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)
    
    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
  2. Figuerola, C.G.; Zazo, A.F.; Berrocal, J.L.A.: ¬La interaccion con el usuario en los sistemas de cuperacion de informacion realimentacion por relecvancia (2002) 0.03
    0.031003129 = product of:
      0.09300938 = sum of:
        0.09300938 = product of:
          0.18601876 = sum of:
            0.18601876 = weight(_text_:2002 in 2875) [ClassicSimilarity], result of:
              0.18601876 = score(doc=2875,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.8985933 = fieldWeight in 2875, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2875)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Scire. 8(2002) no.1, S.87-94
    Year
    2002
  3. Weinstein, A.: Hochprozentig : Tipps and tricks für ein Top-Ranking (2002) 0.03
    0.025835939 = product of:
      0.077507816 = sum of:
        0.077507816 = product of:
          0.15501563 = sum of:
            0.15501563 = weight(_text_:2002 in 1083) [ClassicSimilarity], result of:
              0.15501563 = score(doc=1083,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.74882776 = fieldWeight in 1083, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1083)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Internet Professionell. 2002, H.9, S.66-71
    Year
    2002
  4. Guerrero-Bote, V.P.; Moya Anegón, F. de; Herrero Solana, V.: Document organization using Kohonen's algorithm (2002) 0.02
    0.020668752 = product of:
      0.062006254 = sum of:
        0.062006254 = product of:
          0.12401251 = sum of:
            0.12401251 = weight(_text_:2002 in 2564) [ClassicSimilarity], result of:
              0.12401251 = score(doc=2564,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.5990622 = fieldWeight in 2564, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2564)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Information processing and management. 38(2002) no.1, S.79-89
    Year
    2002
  5. Boughanem, M.; Chrisment, C.; Tamine, L.: On using genetic algorithms for multimodal relevance optimization in information retrieval (2002) 0.02
    0.01808516 = product of:
      0.054255478 = sum of:
        0.054255478 = product of:
          0.108510956 = sum of:
            0.108510956 = weight(_text_:2002 in 1011) [ClassicSimilarity], result of:
              0.108510956 = score(doc=1011,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.52417946 = fieldWeight in 1011, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1011)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Journal of the American Society for Information Science and Technology. 53(2002) no.11, S.934-943
    Year
    2002
  6. Drucker, H.; Shahrary, B.; Gibbon, D.C.: Support vector machines : relevance feedback and information retrieval (2002) 0.02
    0.015501564 = product of:
      0.04650469 = sum of:
        0.04650469 = product of:
          0.09300938 = sum of:
            0.09300938 = weight(_text_:2002 in 2581) [ClassicSimilarity], result of:
              0.09300938 = score(doc=2581,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.44929665 = fieldWeight in 2581, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2581)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Information processing and management. 38(2002) no.3, S.305-323
    Year
    2002
  7. Back, J.: ¬An evaluation of relevancy ranking techniques used by Internet search engines (2000) 0.02
    0.015267169 = product of:
      0.045801505 = sum of:
        0.045801505 = product of:
          0.09160301 = sum of:
            0.09160301 = weight(_text_:22 in 3445) [ClassicSimilarity], result of:
              0.09160301 = score(doc=3445,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.5416616 = fieldWeight in 3445, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=3445)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    25. 8.2005 17:42:22
  8. Crouch, C.J.; Crouch, D.B.; Chen, Q.; Holtz, S.J.: Improving the retrieval effectiveness of very short queries (2002) 0.01
    0.012917969 = product of:
      0.038753908 = sum of:
        0.038753908 = product of:
          0.077507816 = sum of:
            0.077507816 = weight(_text_:2002 in 2572) [ClassicSimilarity], result of:
              0.077507816 = score(doc=2572,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.37441388 = fieldWeight in 2572, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2572)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Information processing and management. 38(2002) no.1, S.1-36
    Year
    2002
  9. Quiroga, L.M.; Mostafa, J.: ¬An experiment in building profiles in information filtering : the role of context of user relevance feedback (2002) 0.01
    0.012917969 = product of:
      0.038753908 = sum of:
        0.038753908 = product of:
          0.077507816 = sum of:
            0.077507816 = weight(_text_:2002 in 2579) [ClassicSimilarity], result of:
              0.077507816 = score(doc=2579,freq=5.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.37441388 = fieldWeight in 2579, product of:
                  2.236068 = tf(freq=5.0), with freq of:
                    5.0 = termFreq=5.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2579)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Information processing and management. 38(2002) no.5, S.671-694
    Year
    2002
  10. Herrera-Viedma, E.; Cordón, O.; Herrera, J.C.; Luqe, M.: ¬An IRS based on multi-granular lnguistic information (2003) 0.01
    0.0098040495 = product of:
      0.029412147 = sum of:
        0.029412147 = product of:
          0.058824293 = sum of:
            0.058824293 = weight(_text_:2002 in 2740) [ClassicSimilarity], result of:
              0.058824293 = score(doc=2740,freq=2.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.28416014 = fieldWeight in 2740, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2740)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    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
  11. MacFarlane, A.; Robertson, S.E.; McCann, J.A.: Parallel computing for passage retrieval (2004) 0.01
    0.008724097 = product of:
      0.02617229 = sum of:
        0.02617229 = product of:
          0.05234458 = sum of:
            0.05234458 = weight(_text_:22 in 5108) [ClassicSimilarity], result of:
              0.05234458 = score(doc=5108,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.30952093 = fieldWeight in 5108, 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=5108)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    20. 1.2007 18:30:22
  12. Losada, D.E.; Barreiro, A.: Emebedding term similarity and inverse document frequency into a logical model of information retrieval (2003) 0.01
    0.008724097 = product of:
      0.02617229 = sum of:
        0.02617229 = product of:
          0.05234458 = sum of:
            0.05234458 = weight(_text_:22 in 1422) [ClassicSimilarity], result of:
              0.05234458 = score(doc=1422,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.30952093 = fieldWeight in 1422, 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=1422)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 3.2003 19:27:23
  13. Lopez-Pujalte, C.; Guerrero Bote, V.P.; Moya-Anegón, F. de: Evaluation of the application of genetic algorithms to relevance feedback (2003) 0.01
    0.008170041 = product of:
      0.024510123 = sum of:
        0.024510123 = product of:
          0.049020246 = sum of:
            0.049020246 = weight(_text_:2002 in 2756) [ClassicSimilarity], result of:
              0.049020246 = score(doc=2756,freq=2.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.2368001 = fieldWeight in 2756, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2756)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    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
  14. Agosti, M.; Pretto, L.: ¬A theoretical study of a generalized version of kleinberg's HITS algorithm (2005) 0.01
    0.008170041 = product of:
      0.024510123 = sum of:
        0.024510123 = product of:
          0.049020246 = sum of:
            0.049020246 = weight(_text_:2002 in 4) [ClassicSimilarity], result of:
              0.049020246 = score(doc=4,freq=2.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.2368001 = fieldWeight in 4, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Kleinberg's HITS (Hyperlink-Induced Topic Search) algorithm (Kleinberg 1999), which was originally developed in a Web context, tries to infer the authoritativeness of a Web page in relation to a specific query using the structure of a subgraph of the Web graph, which is obtained considering this specific query. Recent applications of this algorithm in contexts far removed from that of Web searching (Bacchin, Ferro and Melucci 2002, Ng et al. 2001) inspired us to study the algorithm in the abstract, independently of its particular applications, trying to mathematically illuminate its behaviour. In the present paper we detail this theoretical analysis. The original work starts from the definition of a revised and more general version of the algorithm, which includes the classic one as a particular case. We perform an analysis of the structure of two particular matrices, essential to studying the behaviour of the algorithm, and we prove the convergence of the algorithm in the most general case, finding the analytic expression of the vectors to which it converges. Then we study the symmetry of the algorithm and prove the equivalence between the existence of symmetry and the independence from the order of execution of some basic operations on initial vectors. Finally, we expound some interesting consequences of our theoretical results.
  15. Lalmas, M.: XML retrieval (2009) 0.01
    0.008170041 = product of:
      0.024510123 = sum of:
        0.024510123 = product of:
          0.049020246 = sum of:
            0.049020246 = weight(_text_:2002 in 4998) [ClassicSimilarity], result of:
              0.049020246 = score(doc=4998,freq=2.0), product of:
                0.20701107 = queryWeight, product of:
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.048293278 = queryNorm
                0.2368001 = fieldWeight in 4998, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.28654 = idf(docFreq=1652, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4998)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Abstract
    Documents usually have a content and a structure. The content refers to the text of the document, whereas the structure refers to how a document is logically organized. An increasingly common way to encode the structure is through the use of a mark-up language. Nowadays, the most widely used mark-up language for representing structure is the eXtensible Mark-up Language (XML). XML can be used to provide a focused access to documents, i.e. returning XML elements, such as sections and paragraphs, instead of whole documents in response to a query. Such focused strategies are of particular benefit for information repositories containing long documents, or documents covering a wide variety of topics, where users are directed to the most relevant content within a document. The increased adoption of XML to represent a document structure requires the development of tools to effectively access documents marked-up in XML. This book provides a detailed description of query languages, indexing strategies, ranking algorithms, presentation scenarios developed to access XML documents. Major advances in XML retrieval were seen from 2002 as a result of INEX, the Initiative for Evaluation of XML Retrieval. INEX, also described in this book, provided test sets for evaluating XML retrieval effectiveness. Many of the developments and results described in this book were investigated within INEX.
  16. Kanaeva, Z.: Ranking: Google und CiteSeer (2005) 0.01
    0.0076335846 = product of:
      0.022900753 = sum of:
        0.022900753 = product of:
          0.045801505 = sum of:
            0.045801505 = weight(_text_:22 in 3276) [ClassicSimilarity], result of:
              0.045801505 = score(doc=3276,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.2708308 = fieldWeight in 3276, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3276)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    20. 3.2005 16:23:22
  17. Crestani, F.; Dominich, S.; Lalmas, M.; Rijsbergen, C.J.K. van: Mathematical, logical, and formal methods in information retrieval : an introduction to the special issue (2003) 0.01
    0.006543072 = product of:
      0.019629216 = sum of:
        0.019629216 = product of:
          0.03925843 = sum of:
            0.03925843 = weight(_text_:22 in 1451) [ClassicSimilarity], result of:
              0.03925843 = score(doc=1451,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.23214069 = fieldWeight in 1451, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1451)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 3.2003 19:27:36
  18. Fan, W.; Fox, E.A.; Pathak, P.; Wu, H.: ¬The effects of fitness functions an genetic programming-based ranking discovery for Web search (2004) 0.01
    0.006543072 = product of:
      0.019629216 = sum of:
        0.019629216 = product of:
          0.03925843 = sum of:
            0.03925843 = weight(_text_:22 in 2239) [ClassicSimilarity], result of:
              0.03925843 = score(doc=2239,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.23214069 = fieldWeight in 2239, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2239)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    31. 5.2004 19:22:06
  19. Witschel, H.F.: Global term weights in distributed environments (2008) 0.01
    0.006543072 = product of:
      0.019629216 = sum of:
        0.019629216 = product of:
          0.03925843 = sum of:
            0.03925843 = weight(_text_:22 in 2096) [ClassicSimilarity], result of:
              0.03925843 = score(doc=2096,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.23214069 = fieldWeight in 2096, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2096)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    1. 8.2008 9:44:22
  20. Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004) 0.01
    0.006543072 = product of:
      0.019629216 = sum of:
        0.019629216 = product of:
          0.03925843 = sum of:
            0.03925843 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
              0.03925843 = score(doc=2419,freq=2.0), product of:
                0.16911483 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.048293278 = queryNorm
                0.23214069 = fieldWeight in 2419, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2419)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    16.11.2008 16:22:48

Languages

  • e 21
  • d 3
  • sp 1
  • More… Less…

Types

  • a 23
  • m 2