Search (58 results, page 1 of 3)

  • × language_ss:"e"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × type_ss:"a"
  1. Menczer, F.: Lexical and semantic clustering by Web links (2004) 0.01
    0.009015142 = product of:
      0.022537854 = sum of:
        0.012669483 = product of:
          0.038008448 = sum of:
            0.038008448 = weight(_text_:f in 3090) [ClassicSimilarity], result of:
              0.038008448 = score(doc=3090,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.26422277 = fieldWeight in 3090, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3090)
          0.33333334 = coord(1/3)
        0.00986837 = product of:
          0.029605111 = sum of:
            0.029605111 = weight(_text_:29 in 3090) [ClassicSimilarity], result of:
              0.029605111 = score(doc=3090,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.23319192 = fieldWeight in 3090, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3090)
          0.33333334 = coord(1/3)
      0.4 = coord(2/5)
    
    Date
    9. 1.2005 19:20:29
  2. Bando, L.L.; Scholer, F.; Turpin, A.: Query-biased summary generation assisted by query expansion : temporality (2015) 0.01
    0.007512619 = product of:
      0.018781547 = sum of:
        0.010557904 = product of:
          0.03167371 = sum of:
            0.03167371 = weight(_text_:f in 1820) [ClassicSimilarity], result of:
              0.03167371 = score(doc=1820,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.22018565 = fieldWeight in 1820, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1820)
          0.33333334 = coord(1/3)
        0.008223643 = product of:
          0.024670927 = sum of:
            0.024670927 = weight(_text_:29 in 1820) [ClassicSimilarity], result of:
              0.024670927 = score(doc=1820,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.19432661 = fieldWeight in 1820, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1820)
          0.33333334 = coord(1/3)
      0.4 = coord(2/5)
    
    Abstract
    Query-biased summaries help users to identify which items returned by a search system should be read in full. In this article, we study the generation of query-biased summaries as a sentence ranking approach, and methods to evaluate their effectiveness. Using sentence-level relevance assessments from the TREC Novelty track, we gauge the benefits of query expansion to minimize the vocabulary mismatch problem between informational requests and sentence ranking methods. Our results from an intrinsic evaluation show that query expansion significantly improves the selection of short relevant sentences (5-13 words) between 7% and 11%. However, query expansion does not lead to improvements for sentences of medium (14-20 words) and long (21-29 words) lengths. In a separate crowdsourcing study, we analyze whether a summary composed of sentences ranked using query expansion was preferred over summaries not assisted by query expansion, rather than assessing sentences individually. We found that participants chose summaries aided by query expansion around 60% of the time over summaries using an unexpanded query. We conclude that query expansion techniques can benefit the selection of sentences for the construction of query-biased summaries at the summary level rather than at the sentence ranking level.
  3. Boyack, K.W.; Wylie,B.N.; Davidson, G.S.: Information Visualization, Human-Computer Interaction, and Cognitive Psychology : Domain Visualizations (2002) 0.00
    0.004610147 = product of:
      0.023050733 = sum of:
        0.023050733 = product of:
          0.0691522 = sum of:
            0.0691522 = weight(_text_:22 in 1352) [ClassicSimilarity], result of:
              0.0691522 = score(doc=1352,freq=4.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.54716086 = fieldWeight in 1352, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1352)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    22. 2.2003 17:25:39
    22. 2.2003 18:17:40
  4. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.00
    0.0045638126 = product of:
      0.022819063 = sum of:
        0.022819063 = product of:
          0.068457186 = sum of:
            0.068457186 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.068457186 = score(doc=2134,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.5416616 = fieldWeight in 2134, 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=2134)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    30. 3.2001 13:32:22
  5. Ross, J.: ¬A new way of information retrieval : 3-D indexing and concept mapping (2000) 0.00
    0.0039473483 = product of:
      0.01973674 = sum of:
        0.01973674 = product of:
          0.059210222 = sum of:
            0.059210222 = weight(_text_:29 in 6171) [ClassicSimilarity], result of:
              0.059210222 = score(doc=6171,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.46638384 = fieldWeight in 6171, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.09375 = fieldNorm(doc=6171)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    25. 2.1997 10:29:16
  6. Shiri, A.A.; Revie, C.; Chowdhury, G.: Thesaurus-enhanced search interfaces (2002) 0.00
    0.0039473483 = product of:
      0.01973674 = sum of:
        0.01973674 = product of:
          0.059210222 = sum of:
            0.059210222 = weight(_text_:29 in 3807) [ClassicSimilarity], result of:
              0.059210222 = score(doc=3807,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.46638384 = fieldWeight in 3807, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.09375 = fieldNorm(doc=3807)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    18. 5.2002 17:29:00
  7. Shiri, A.A.; Revie, C.: ¬The effects of topic complexity and familiarity on cognitive and physical moves in a thesaurus-enhanced search environment (2003) 0.00
    0.0039473483 = product of:
      0.01973674 = sum of:
        0.01973674 = product of:
          0.059210222 = sum of:
            0.059210222 = weight(_text_:29 in 4695) [ClassicSimilarity], result of:
              0.059210222 = score(doc=4695,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.46638384 = fieldWeight in 4695, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4695)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Journal of information science. 29(2003) no.6, S.517-
  8. Celik, I.; Abel, F.; Siehndel, P.: Adaptive faceted search on Twitter (2011) 0.00
    0.003378529 = product of:
      0.016892646 = sum of:
        0.016892646 = product of:
          0.050677933 = sum of:
            0.050677933 = weight(_text_:f in 2221) [ClassicSimilarity], result of:
              0.050677933 = score(doc=2221,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.35229704 = fieldWeight in 2221, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2221)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
  9. Stojanovic, N.: On the query refinement in the ontology-based searching for information (2005) 0.00
    0.0032894572 = product of:
      0.016447285 = sum of:
        0.016447285 = product of:
          0.049341854 = sum of:
            0.049341854 = weight(_text_:29 in 2907) [ClassicSimilarity], result of:
              0.049341854 = score(doc=2907,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38865322 = fieldWeight in 2907, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2907)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    5. 4.1996 15:29:15
  10. Rekabsaz, N. et al.: Toward optimized multimodal concept indexing (2016) 0.00
    0.0032598663 = product of:
      0.016299332 = sum of:
        0.016299332 = product of:
          0.048897993 = sum of:
            0.048897993 = weight(_text_:22 in 2751) [ClassicSimilarity], result of:
              0.048897993 = score(doc=2751,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38690117 = fieldWeight in 2751, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2751)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    1. 2.2016 18:25:22
  11. Kozikowski, P. et al.: Support of part-whole relations in query answering (2016) 0.00
    0.0032598663 = product of:
      0.016299332 = sum of:
        0.016299332 = product of:
          0.048897993 = sum of:
            0.048897993 = weight(_text_:22 in 2754) [ClassicSimilarity], result of:
              0.048897993 = score(doc=2754,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38690117 = fieldWeight in 2754, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2754)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    1. 2.2016 18:25:22
  12. Marx, E. et al.: Exploring term networks for semantic search over RDF knowledge graphs (2016) 0.00
    0.0032598663 = product of:
      0.016299332 = sum of:
        0.016299332 = product of:
          0.048897993 = sum of:
            0.048897993 = weight(_text_:22 in 3279) [ClassicSimilarity], result of:
              0.048897993 = score(doc=3279,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38690117 = fieldWeight in 3279, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3279)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  13. Kopácsi, S. et al.: Development of a classification server to support metadata harmonization in a long term preservation system (2016) 0.00
    0.0032598663 = product of:
      0.016299332 = sum of:
        0.016299332 = product of:
          0.048897993 = sum of:
            0.048897993 = weight(_text_:22 in 3280) [ClassicSimilarity], result of:
              0.048897993 = score(doc=3280,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38690117 = fieldWeight in 3280, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=3280)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  14. Sacco, G.M.: Dynamic taxonomies and guided searches (2006) 0.00
    0.0032271033 = product of:
      0.016135516 = sum of:
        0.016135516 = product of:
          0.048406545 = sum of:
            0.048406545 = weight(_text_:22 in 5295) [ClassicSimilarity], result of:
              0.048406545 = score(doc=5295,freq=4.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.38301262 = fieldWeight in 5295, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5295)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    22. 7.2006 17:56:22
  15. Shapiro, C.D.; Yan, P.-F.: Generous tools : thesauri in digital libraries (1996) 0.00
    0.002956213 = product of:
      0.014781064 = sum of:
        0.014781064 = product of:
          0.044343192 = sum of:
            0.044343192 = weight(_text_:f in 3132) [ClassicSimilarity], result of:
              0.044343192 = score(doc=3132,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.3082599 = fieldWeight in 3132, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3132)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
  16. Colace, F.; Santo, M. De; Greco, L.; Napoletano, P.: Weighted word pairs for query expansion (2015) 0.00
    0.002956213 = product of:
      0.014781064 = sum of:
        0.014781064 = product of:
          0.044343192 = sum of:
            0.044343192 = weight(_text_:f in 2687) [ClassicSimilarity], result of:
              0.044343192 = score(doc=2687,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.3082599 = fieldWeight in 2687, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2687)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
  17. Sacco, G.M.: Accessing multimedia infobases through dynamic taxonomies (2004) 0.00
    0.0026315656 = product of:
      0.013157828 = sum of:
        0.013157828 = product of:
          0.03947348 = sum of:
            0.03947348 = weight(_text_:29 in 2637) [ClassicSimilarity], result of:
              0.03947348 = score(doc=2637,freq=2.0), product of:
                0.12695599 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.036090754 = queryNorm
                0.31092256 = fieldWeight in 2637, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2637)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    29. 8.2004 10:15:02
  18. Efthimiadis, E.N.: End-users' understanding of thesaural knowledge structures in interactive query expansion (1994) 0.00
    0.002607893 = product of:
      0.013039465 = sum of:
        0.013039465 = product of:
          0.039118394 = sum of:
            0.039118394 = weight(_text_:22 in 5693) [ClassicSimilarity], result of:
              0.039118394 = score(doc=5693,freq=2.0), product of:
                0.12638368 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.036090754 = queryNorm
                0.30952093 = fieldWeight in 5693, 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=5693)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Date
    30. 3.2001 13:35:22
  19. Scholer, F.; Williams, H.E.; Turpin, A.: Query association surrogates for Web search (2004) 0.00
    0.0025338966 = product of:
      0.012669483 = sum of:
        0.012669483 = product of:
          0.038008448 = sum of:
            0.038008448 = weight(_text_:f in 2236) [ClassicSimilarity], result of:
              0.038008448 = score(doc=2236,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.26422277 = fieldWeight in 2236, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2236)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
  20. Mayr, P.; Schaer, P.; Mutschke, P.: ¬A science model driven retrieval prototype (2011) 0.00
    0.0025338966 = product of:
      0.012669483 = sum of:
        0.012669483 = product of:
          0.038008448 = sum of:
            0.038008448 = weight(_text_:f in 649) [ClassicSimilarity], result of:
              0.038008448 = score(doc=649,freq=2.0), product of:
                0.14385001 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.036090754 = queryNorm
                0.26422277 = fieldWeight in 649, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=649)
          0.33333334 = coord(1/3)
      0.2 = coord(1/5)
    
    Source
    Concepts in context: Proceedings of the Cologne Conference on Interoperability and Semantics in Knowledge Organization July 19th - 20th, 2010. Eds.: F. Boteram, W. Gödert u. J. Hubrich

Authors

Years