Search (19 results, page 1 of 1)

  • × theme_ss:"Volltextretrieval"
  1. Pirkola, A.; Jarvelin, K.: ¬The effect of anaphor and ellipsis resolution on proximity searching in a text database (1995) 0.04
    0.038723666 = product of:
      0.07744733 = sum of:
        0.07744733 = product of:
          0.23234199 = sum of:
            0.23234199 = weight(_text_:28.8 in 4088) [ClassicSimilarity], result of:
              0.23234199 = score(doc=4088,freq=2.0), product of:
                0.44273564 = queryWeight, product of:
                  9.499662 = idf(docFreq=8, maxDocs=44218)
                  0.04660541 = queryNorm
                0.5247872 = fieldWeight in 4088, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  9.499662 = idf(docFreq=8, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4088)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    So far, methods for ellipsis and anaphor resolution have been developed and the effects of anaphor resolution have been analyzed in the context of statistical information retrieval of scientific abstracts. No significant improvements has been observed. Analyzes the effects of ellipsis and anaphor resolution on proximity searching in a full text database. Anaphora and ellipsis are classified on the basis of the type of their correlates / antecedents rather than, as traditional, on the basis of their own linguistic type. The classification differentiates proper names and common nouns of basic words, compound words, and phrases. The study was carried out in a newspaper article database containing 55.000 full text articles. A set of 154 keyword pairs in different categories was created. Human resolution of keyword ellipsis and anaphora was performed to identify sentences and paragraphs which would match proximity searches after resolution. Findings indicate that ellipsis and anaphor resolution is most relevant for proper name phrases and only marginal in the other keyword categories. Therefore the recall effect of restricted resolution of proper name phrases only was analyzed for keyword pairs containing at least 1 proper name phrase. Findings indicate a recall increase of 38.2% in sentence searches, and 28.8% in paragraph searches when proper name ellipsis were resolved. The recall increase was 17.6% sentence searches, and 19.8% in paragraph searches when proper name anaphora were resolved. Some simple and computationally justifiable resolution method might be developed only for proper name phrases to support keyword based full text information retrieval. Discusses elements of such a method
  2. Reinisch, F.: Wer suchet - der findet? : oder Die Überwindung der sprachlichen Grenzen bei der Suche in Volltextdatenbanken (2000) 0.03
    0.033829592 = product of:
      0.067659184 = sum of:
        0.067659184 = product of:
          0.10148877 = sum of:
            0.050973658 = weight(_text_:29 in 4919) [ClassicSimilarity], result of:
              0.050973658 = score(doc=4919,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.31092256 = fieldWeight in 4919, 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=4919)
            0.050515115 = weight(_text_:22 in 4919) [ClassicSimilarity], result of:
              0.050515115 = score(doc=4919,freq=2.0), product of:
                0.1632042 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04660541 = queryNorm
                0.30952093 = fieldWeight in 4919, 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=4919)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 7.2000 17:48:06
    Source
    Dokumente und Datenbanken in elektronischen Netzen: Tagungsberichte vom 6. und 7. Österreichischen Online-Informationstreffen bzw. vom 7. und 8. Österreichischen Dokumentartag, Schloß Seggau, Seggauberg bei Leibnitz, 26.-29. September 1995, Congresszentrum Igls bei Innsbruck, 21.-24. Oktober 1997. Hrsg.: E. Pipp
  3. Tenopir, C.: Searching by controlled vocabulary or free text (1987) 0.02
    0.01699122 = product of:
      0.03398244 = sum of:
        0.03398244 = product of:
          0.101947315 = sum of:
            0.101947315 = weight(_text_:29 in 1350) [ClassicSimilarity], result of:
              0.101947315 = score(doc=1350,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.6218451 = fieldWeight in 1350, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.125 = fieldNorm(doc=1350)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Library journal. 112(1987) Nov.15, S.58-29
  4. Pipp, E.: Volltextdatenbanken im Vergleich (2001) 0.01
    0.014867317 = product of:
      0.029734634 = sum of:
        0.029734634 = product of:
          0.0892039 = sum of:
            0.0892039 = weight(_text_:29 in 6509) [ClassicSimilarity], result of:
              0.0892039 = score(doc=6509,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.5441145 = fieldWeight in 6509, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6509)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    29. 9.2001 11:28:25
  5. Witt, M.: Au sujet des mots-clés (1997) 0.01
    0.012014607 = product of:
      0.024029214 = sum of:
        0.024029214 = product of:
          0.07208764 = sum of:
            0.07208764 = weight(_text_:29 in 1666) [ClassicSimilarity], result of:
              0.07208764 = score(doc=1666,freq=4.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.43971092 = fieldWeight in 1666, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1666)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    29. 1.1996 16:50:24
    29. 7.1998 18:19:41
  6. Blair, D.C.; Maron, M.E.: ¬An evaluation of retrieval effectiveness for a full-text document-retrieval system (1985) 0.01
    0.010619513 = product of:
      0.021239026 = sum of:
        0.021239026 = product of:
          0.063717075 = sum of:
            0.063717075 = weight(_text_:29 in 1345) [ClassicSimilarity], result of:
              0.063717075 = score(doc=1345,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.38865322 = fieldWeight in 1345, 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=1345)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Vgl. auch : Salton, G.: Another look ... Comm. ACM 29(1986) S.S.648-656; Blair, D.C.: Full text retrieval ... Int. Class. 13(1986) S.18-23: Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. proc. man. 26(1990) S.437-447.
  7. Salton, G.: Another look at automatic text-retrieval systems (1986) 0.01
    0.010619513 = product of:
      0.021239026 = sum of:
        0.021239026 = product of:
          0.063717075 = sum of:
            0.063717075 = weight(_text_:29 in 1356) [ClassicSimilarity], result of:
              0.063717075 = score(doc=1356,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.38865322 = fieldWeight in 1356, 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=1356)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Communications of the Association for Computing Machinery. 29(1986), S.648-656
  8. Wenzel, F.: Semantische Eingrenzung im Freitext-Retrieval auf der Basis morphologischer Segmentierungen (1980) 0.01
    0.010619513 = product of:
      0.021239026 = sum of:
        0.021239026 = product of:
          0.063717075 = sum of:
            0.063717075 = weight(_text_:29 in 2037) [ClassicSimilarity], result of:
              0.063717075 = score(doc=2037,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.38865322 = fieldWeight in 2037, 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=2037)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Nachrichten für Dokumentation. 31(1980) H.1, S.29-35
  9. Molto, M.: Improving full text search performance through textual analysis (1993) 0.01
    0.00849561 = product of:
      0.01699122 = sum of:
        0.01699122 = product of:
          0.050973658 = sum of:
            0.050973658 = weight(_text_:29 in 5099) [ClassicSimilarity], result of:
              0.050973658 = score(doc=5099,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.31092256 = fieldWeight in 5099, 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=5099)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 29(1993) no.5, S.614-632
  10. Kristensen, J.: Expanding end-users' query statements for free text searching with a search-aid thesaurus (1993) 0.01
    0.00849561 = product of:
      0.01699122 = sum of:
        0.01699122 = product of:
          0.050973658 = sum of:
            0.050973658 = weight(_text_:29 in 6621) [ClassicSimilarity], result of:
              0.050973658 = score(doc=6621,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.31092256 = fieldWeight in 6621, 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=6621)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Information processing and management. 29(1993) no.6, S.733-744
  11. Laegreid, J.A.: SIFT: a Norwegian information retrieval system (1993) 0.01
    0.008419186 = product of:
      0.016838372 = sum of:
        0.016838372 = product of:
          0.050515115 = sum of:
            0.050515115 = weight(_text_:22 in 7701) [ClassicSimilarity], result of:
              0.050515115 = score(doc=7701,freq=2.0), product of:
                0.1632042 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04660541 = queryNorm
                0.30952093 = fieldWeight in 7701, 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=7701)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    23. 1.1999 19:22:09
  12. Zillmann, H.: OSIRIS und eLib : Information Retrieval und Search Engines in Full-text Databases (2001) 0.01
    0.008419186 = product of:
      0.016838372 = sum of:
        0.016838372 = product of:
          0.050515115 = sum of:
            0.050515115 = weight(_text_:22 in 5937) [ClassicSimilarity], result of:
              0.050515115 = score(doc=5937,freq=2.0), product of:
                0.1632042 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04660541 = queryNorm
                0.30952093 = fieldWeight in 5937, 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=5937)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    14. 6.2001 12:22:31
  13. Dambeck, H.; Engler, T.: Gesucht und gefunden : Neun Volltext-Suchprogramme für den Desktop (2002) 0.01
    0.008419186 = product of:
      0.016838372 = sum of:
        0.016838372 = product of:
          0.050515115 = sum of:
            0.050515115 = weight(_text_:22 in 1169) [ClassicSimilarity], result of:
              0.050515115 = score(doc=1169,freq=2.0), product of:
                0.1632042 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04660541 = queryNorm
                0.30952093 = fieldWeight in 1169, 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=1169)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    c't. 2002, H.22, S.190-197
  14. Albus, W.; Smulders, H.: Doeltreffend zoeken in volledige teksten : 1. full-text retrieval bij de HavenInformatieBank (1998) 0.01
    0.0074336585 = product of:
      0.014867317 = sum of:
        0.014867317 = product of:
          0.04460195 = sum of:
            0.04460195 = weight(_text_:29 in 1682) [ClassicSimilarity], result of:
              0.04460195 = score(doc=1682,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.27205724 = fieldWeight in 1682, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1682)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    29. 7.1998 19:54:49
  15. Preston, L.A.; Ebbs, C.M.; Luther, J.: 'Full text' access evaluation : are we getting the real thing? (1998) 0.01
    0.0074336585 = product of:
      0.014867317 = sum of:
        0.014867317 = product of:
          0.04460195 = sum of:
            0.04460195 = weight(_text_:29 in 2695) [ClassicSimilarity], result of:
              0.04460195 = score(doc=2695,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.27205724 = fieldWeight in 2695, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2695)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Part of an issue devoted to 'Experimentation and collaboration: creating series for a new millenium', part 2, Proceedings of the North American Serials Interest Group, Inc.'s 12th annual conference, 29 May - 1 June 1997, University of Michigan Ann Arbor, Michigan
  16. Blair, D.C.: Full text retrieval : Evaluation and implications (1986) 0.01
    0.0063717077 = product of:
      0.012743415 = sum of:
        0.012743415 = product of:
          0.038230244 = sum of:
            0.038230244 = weight(_text_:29 in 2047) [ClassicSimilarity], result of:
              0.038230244 = score(doc=2047,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.23319192 = fieldWeight in 2047, 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=2047)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Vgl.: Blair, D.C., M.E. Maron: An evaluation ... Comm. ACM 28(1985) S.280-299; Salton, G.: Another look ... Comm. ACM 29(1986) S.648-656; Blair, D.C., M.E. Maron: Full-text information retrieval ... Inf. Proc. Man. 26(1990) S.437-447.
  17. Leppanen, E.: Homografiongelma tekstihaussa ja homografien disambiguoinnin vaikutukset (1996) 0.01
    0.0063717077 = product of:
      0.012743415 = sum of:
        0.012743415 = product of:
          0.038230244 = sum of:
            0.038230244 = weight(_text_:29 in 27) [ClassicSimilarity], result of:
              0.038230244 = score(doc=27,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.23319192 = fieldWeight in 27, 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=27)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    9.12.1997 18:33:29
  18. Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.01
    0.006314389 = product of:
      0.012628778 = sum of:
        0.012628778 = product of:
          0.037886333 = sum of:
            0.037886333 = weight(_text_:22 in 3564) [ClassicSimilarity], result of:
              0.037886333 = score(doc=3564,freq=2.0), product of:
                0.1632042 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04660541 = queryNorm
                0.23214069 = fieldWeight in 3564, 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=3564)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    9. 1.1996 10:22:31
  19. Rösener, C.: ¬Die Stecknadel im Heuhaufen : Natürlichsprachlicher Zugang zu Volltextdatenbanken (2005) 0.00
    0.004247805 = product of:
      0.00849561 = sum of:
        0.00849561 = product of:
          0.025486829 = sum of:
            0.025486829 = weight(_text_:29 in 548) [ClassicSimilarity], result of:
              0.025486829 = score(doc=548,freq=2.0), product of:
                0.16394326 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.04660541 = queryNorm
                0.15546128 = fieldWeight in 548, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03125 = fieldNorm(doc=548)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    29. 3.2009 11:11:45