Search (23 results, page 1 of 2)

  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  • × type_ss:"a"
  • × year_i:[2010 TO 2020}
  1. Rekabsaz, N. et al.: Toward optimized multimodal concept indexing (2016) 0.02 
    0.01775662 = product of:
  0.03551324 = sum of:
    0.03551324 = product of:
      0.07102648 = sum of:
        0.07102648 = weight(_text_:22 in 2751) [ClassicSimilarity], result of:
          0.07102648 = score(doc=2751,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = 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)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 2.2016 18:25:22
  2. Kozikowski, P. et al.: Support of part-whole relations in query answering (2016) 0.02 
    0.01775662 = product of:
  0.03551324 = sum of:
    0.03551324 = product of:
      0.07102648 = sum of:
        0.07102648 = weight(_text_:22 in 2754) [ClassicSimilarity], result of:
          0.07102648 = score(doc=2754,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = 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)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    1. 2.2016 18:25:22
  3. Marx, E. et al.: Exploring term networks for semantic search over RDF knowledge graphs (2016) 0.02 
    0.01775662 = product of:
  0.03551324 = sum of:
    0.03551324 = product of:
      0.07102648 = sum of:
        0.07102648 = weight(_text_:22 in 3279) [ClassicSimilarity], result of:
          0.07102648 = score(doc=3279,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = 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)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  4. Kopácsi, S. et al.: Development of a classification server to support metadata harmonization in a long term preservation system (2016) 0.02 
    0.01775662 = product of:
  0.03551324 = sum of:
    0.03551324 = product of:
      0.07102648 = sum of:
        0.07102648 = weight(_text_:22 in 3280) [ClassicSimilarity], result of:
          0.07102648 = score(doc=3280,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = 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)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  5. Salaba, A.; Zeng, M.L.: Extending the "Explore" user task beyond subject authority data into the linked data sphere (2014) 0.01 
    0.012429634 = product of:
  0.024859268 = sum of:
    0.024859268 = product of:
      0.049718536 = sum of:
        0.049718536 = weight(_text_:22 in 1465) [ClassicSimilarity], result of:
          0.049718536 = score(doc=1465,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.2708308 = fieldWeight in 1465, 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=1465)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
  6. Mlodzka-Stybel, A.: Towards continuous improvement of users' access to a library catalogue (2014) 0.01 
    0.012429634 = product of:
  0.024859268 = sum of:
    0.024859268 = product of:
      0.049718536 = sum of:
        0.049718536 = weight(_text_:22 in 1466) [ClassicSimilarity], result of:
          0.049718536 = score(doc=1466,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.2708308 = fieldWeight in 1466, 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=1466)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
  7. Zeng, M.L.; Gracy, K.F.; Zumer, M.: Using a semantic analysis tool to generate subject access points : a study using Panofsky's theory and two research samples (2014) 0.01 
    0.010653973 = product of:
  0.021307945 = sum of:
    0.021307945 = product of:
      0.04261589 = sum of:
        0.04261589 = weight(_text_:22 in 1464) [ClassicSimilarity], result of:
          0.04261589 = score(doc=1464,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.23214069 = fieldWeight in 1464, 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=1464)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Knowledge organization in the 21st century: between historical patterns and future prospects. Proceedings of the Thirteenth International ISKO Conference 19-22 May 2014, Kraków, Poland. Ed.: Wieslaw Babik
  8. Brandão, W.C.; Santos, R.L.T.; Ziviani, N.; Moura, E.S. de; Silva, A.S. da: Learning to expand queries using entities (2014) 0.01 
    0.00887831 = product of:
  0.01775662 = sum of:
    0.01775662 = product of:
      0.03551324 = sum of:
        0.03551324 = weight(_text_:22 in 1343) [ClassicSimilarity], result of:
          0.03551324 = score(doc=1343,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.19345059 = fieldWeight in 1343, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1343)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 8.2014 17:07:50
  9. Athukorala, K.; Glowacka, D.; Jacucci, G.; Oulasvirta, A.; Vreeken, J.: Is exploratory search different? : a comparison of information search behavior for exploratory and lookup tasks (2016) 0.01 
    0.0076480582 = product of:
  0.0152961165 = sum of:
    0.0152961165 = product of:
      0.030592233 = sum of:
        0.030592233 = weight(_text_:2 in 3150) [ClassicSimilarity], result of:
          0.030592233 = score(doc=3150,freq=6.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.23629841 = fieldWeight in 3150, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3150)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Exploratory search is an increasingly important activity yet challenging for users. Although there exists an ample amount of research into understanding exploration, most of the major information retrieval (IR) systems do not provide tailored and adaptive support for such tasks. One reason is the lack of empirical knowledge on how to distinguish exploratory and lookup search behaviors in IR systems. The goal of this article is to investigate how to separate the 2 types of tasks in an IR system using easily measurable behaviors. In this article, we first review characteristics of exploratory search behavior. We then report on a controlled study of 6 search tasks with 3 exploratory-comparison, knowledge acquisition, planning-and 3 lookup tasks-fact-finding, navigational, question answering. The results are encouraging, showing that IR systems can distinguish the 2 search categories in the course of a search session. The most distinctive indicators that characterize exploratory search behaviors are query length, maximum scroll depth, and task completion time. However, 2 tasks are borderline and exhibit mixed characteristics. We assess the applicability of this finding by reporting on several classification experiments. Our results have valuable implications for designing tailored and adaptive IR systems.
  10. Mayr, P.; Schaer, P.; Mutschke, P.: ¬A science model driven retrieval prototype (2011) 0.01 
    0.0074935355 = product of:
  0.014987071 = sum of:
    0.014987071 = product of:
      0.029974142 = sum of:
        0.029974142 = weight(_text_:2 in 649) [ClassicSimilarity], result of:
          0.029974142 = score(doc=649,freq=4.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.2315242 = fieldWeight in 649, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=649)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    This paper is about a better understanding of the structure and dynamics of science and the usage of these insights for compensating the typical problems that arises in metadata-driven Digital Libraries. Three science model driven retrieval services are presented: co-word analysis based query expansion, re-ranking via Bradfordizing and author centrality. The services are evaluated with relevance assessments from which two important implications emerge: (1) precision values of the retrieval services are the same or better than the tf-idf retrieval baseline and (2) each service retrieved a disjoint set of documents. The different services each favor quite other - but still relevant - documents than pure term-frequency based rankings. The proposed models and derived retrieval services therefore open up new viewpoints on the scientific knowledge space and provide an alternative framework to structure scholarly information systems.
    Date
    2. 3.2013 11:42:37
  11. Bräscher, M.: Semantic relations in knowledge organization systems (2014) 0.01 
    0.0074935355 = product of:
  0.014987071 = sum of:
    0.014987071 = product of:
      0.029974142 = sum of:
        0.029974142 = weight(_text_:2 in 1380) [ClassicSimilarity], result of:
          0.029974142 = score(doc=1380,freq=4.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.2315242 = fieldWeight in 1380, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=1380)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    2. 9.2014 19:19:40
    Source
    Knowledge organization. 41(2014) no.2, S.175-180
  12. Brunetti, J.M.; Roberto García, R.: User-centered design and evaluation of overview components for semantic data exploration (2014) 0.01 
    0.0071026483 = product of:
  0.0142052965 = sum of:
    0.0142052965 = product of:
      0.028410593 = sum of:
        0.028410593 = weight(_text_:22 in 1626) [ClassicSimilarity], result of:
          0.028410593 = score(doc=1626,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.15476047 = fieldWeight in 1626, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=1626)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
  13. Thenmalar, S.; Geetha, T.V.: Enhanced ontology-based indexing and searching (2014) 0.01 
    0.006214817 = product of:
  0.012429634 = sum of:
    0.012429634 = product of:
      0.024859268 = sum of:
        0.024859268 = weight(_text_:22 in 1633) [ClassicSimilarity], result of:
          0.024859268 = score(doc=1633,freq=2.0), product of:
            0.18357785 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05242341 = queryNorm
            0.1354154 = fieldWeight in 1633, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02734375 = fieldNorm(doc=1633)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    20. 1.2015 18:30:22
  14. Narock, T.; Zhou, L.; Yoon, V.: Semantic similarity of ontology instances using polarity mining (2013) 0.01 
    0.0052987295 = product of:
  0.010597459 = sum of:
    0.010597459 = product of:
      0.021194918 = sum of:
        0.021194918 = weight(_text_:2 in 620) [ClassicSimilarity], result of:
          0.021194918 = score(doc=620,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.16371232 = fieldWeight in 620, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=620)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.2, S.416-427
  15. Jindal, V.; Bawa, S.; Batra, S.: ¬A review of ranking approaches for semantic search on Web (2014) 0.01 
    0.0052987295 = product of:
  0.010597459 = sum of:
    0.010597459 = product of:
      0.021194918 = sum of:
        0.021194918 = weight(_text_:2 in 2799) [ClassicSimilarity], result of:
          0.021194918 = score(doc=2799,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.16371232 = fieldWeight in 2799, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=2799)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 50(2014) no.2, S.416-425
  16. Selvaretnam, B.; Belkhatir, M.: ¬A linguistically driven framework for query expansion via grammatical constituent highlighting and role-based concept weighting (2016) 0.01 
    0.0052987295 = product of:
  0.010597459 = sum of:
    0.010597459 = product of:
      0.021194918 = sum of:
        0.021194918 = weight(_text_:2 in 2876) [ClassicSimilarity], result of:
          0.021194918 = score(doc=2876,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.16371232 = fieldWeight in 2876, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=2876)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 52(2016) no.2, S.174-192
  17. Li, N.; Sun, J.: Improving Chinese term association from the linguistic perspective (2017) 0.01 
    0.0052987295 = product of:
  0.010597459 = sum of:
    0.010597459 = product of:
      0.021194918 = sum of:
        0.021194918 = weight(_text_:2 in 3381) [ClassicSimilarity], result of:
          0.021194918 = score(doc=3381,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.16371232 = fieldWeight in 3381, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.046875 = fieldNorm(doc=3381)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    2. 9.2014 19:19:40
  18. Oh, K.E.; Joo, S.; Jeong, E.-J.: Online consumer health information organization : users' perspectives on faceted navigation (2015) 0.00 
    0.004415608 = product of:
  0.008831216 = sum of:
    0.008831216 = product of:
      0.017662432 = sum of:
        0.017662432 = weight(_text_:2 in 2197) [ClassicSimilarity], result of:
          0.017662432 = score(doc=2197,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.13642694 = fieldWeight in 2197, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2197)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    2. 9.2014 19:19:40
  19. Buccio, E. Di; Melucci, M.; Moro, F.: Detecting verbose queries and improving information retrieval (2014) 0.00 
    0.004415608 = product of:
  0.008831216 = sum of:
    0.008831216 = product of:
      0.017662432 = sum of:
        0.017662432 = weight(_text_:2 in 2695) [ClassicSimilarity], result of:
          0.017662432 = score(doc=2695,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.13642694 = fieldWeight in 2695, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2695)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 50(2014) no.2, S.342-360
  20. Cai, F.; Rijke, M. de: Learning from homologous queries and semantically related terms for query auto completion (2016) 0.00 
    0.004415608 = product of:
  0.008831216 = sum of:
    0.008831216 = product of:
      0.017662432 = sum of:
        0.017662432 = weight(_text_:2 in 2971) [ClassicSimilarity], result of:
          0.017662432 = score(doc=2971,freq=2.0), product of:
            0.1294644 = queryWeight, product of:
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.05242341 = queryNorm
            0.13642694 = fieldWeight in 2971, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4695914 = idf(docFreq=10170, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2971)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    2. 6.2016 19:55:42

Authors

Themes