Search (7 results, page 1 of 1)

  • × author_ss:"Chowdhury, G.G."
  1. Chowdhury, G.G.: Introduction to modern information retrieval (1999) 0.01
    0.010490114 = product of:
      0.06294068 = sum of:
        0.05147998 = weight(_text_:allgemeine in 4902) [ClassicSimilarity], result of:
          0.05147998 = score(doc=4902,freq=2.0), product of:
            0.14797503 = queryWeight, product of:
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.028196473 = queryNorm
            0.3478964 = fieldWeight in 4902, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.046875 = fieldNorm(doc=4902)
        0.011460698 = product of:
          0.022921396 = sum of:
            0.022921396 = weight(_text_:22 in 4902) [ClassicSimilarity], result of:
              0.022921396 = score(doc=4902,freq=2.0), product of:
                0.098739244 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.028196473 = queryNorm
                0.23214069 = fieldWeight in 4902, 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=4902)
          0.5 = coord(1/2)
      0.16666667 = coord(2/12)
    
    Content
    Enthält die Kapitel: 1. Basic concepts of information retrieval systems, 2. Database technology, 3. Bibliographic formats, 4. Subject analysis and representation, 5. Automatic indexing and file organization, 6. Vocabulary control, 7. Abstracts and abstracting, 8. Searching and retrieval, 9. Users of information retrieval, 10. Evaluation of information retrieval systems, 11. Evaluation experiments, 12. Online information retrieval, 13. CD-ROM information retrieval, 14. Trends in CD-ROM and online information retrieval, 15. Multimedia information retrieval, 16. Hypertext and hypermedia systems, 17. Intelligent information retrieval, 18. Natural language processing and information retrieval, 19. Natural language interfaces, 20. Natural language text processing and retrieval systems, 21. Problems and prospects of natural language processing systems, 22. The Internet and information retrieval, 23. Trends in information retrieval.
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur
  2. Chowdhury, G.G.; Mahapatra, M.: Applications of the theory of relational analysis in information retrieval (1990) 0.01
    0.0067199245 = product of:
      0.080639094 = sum of:
        0.080639094 = weight(_text_:organisation in 3551) [ClassicSimilarity], result of:
          0.080639094 = score(doc=3551,freq=4.0), product of:
            0.14418204 = queryWeight, product of:
              5.113478 = idf(docFreq=722, maxDocs=44218)
              0.028196473 = queryNorm
            0.55928665 = fieldWeight in 3551, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.113478 = idf(docFreq=722, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3551)
      0.083333336 = coord(1/12)
    
    Abstract
    Farradane's theory of relational analysis has wide applications in information retrieval. The major areas of application cover their use in retrospective searches, semantic analysis of information, concept organisation and control, efficiency as an information retrieval tool, multilingual indexing tool, in SDI term relations in thesauri, study of nature of subjects, computerised indexing systems, analysis and measuring of information and organisation of current information. Most of the applications were in scientific subjects and the data bases considered were too small to generalise. Suggests 5 new areas of research on relational indexing: compilations of a detailed manual; application in scientific, social sciences, and humanities literature; application in study of the nature of subject literature; comparative efficiency of relational indeximg; and a compilation of a relational thesaurus.
  3. Meyyappan, N.; Foo, F.; Chowdhury, G.G.: Design and evaluation of a task-based digital library for the academic community (2004) 0.01
    0.0057599354 = product of:
      0.06911922 = sum of:
        0.06911922 = weight(_text_:organisation in 4425) [ClassicSimilarity], result of:
          0.06911922 = score(doc=4425,freq=4.0), product of:
            0.14418204 = queryWeight, product of:
              5.113478 = idf(docFreq=722, maxDocs=44218)
              0.028196473 = queryNorm
            0.4793886 = fieldWeight in 4425, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.113478 = idf(docFreq=722, maxDocs=44218)
              0.046875 = fieldNorm(doc=4425)
      0.083333336 = coord(1/12)
    
    Abstract
    The paper discusses the design, development and evaluation of a task-based digital library, the Digital Work Environment (DWE), for the academic community of higher education institutions (HEI) with Nanyang Technological University, Singapore, as a test case. Three different information organisation approaches (alphabetical, subject category and task-based) were used to organise the wide range of heterogeneous information resources that were interfaced to DWE. A user evaluation study using a series of task scenarios was carried out to gauge the effectiveness and usefulness of DWE and these information organisation approaches. The time taken by respondents to identify and access the relevant information resources for individual tasks was also measured. The findings show that the task-based approach took the least time in identifying information resources. Regression analysis of information resource location time with gender, age, computer experience and digital resource experience of the participants are also reported.
  4. Chowdhury, G.G.: Introduction to modern information retrieval (2010) 0.00
    0.002859999 = product of:
      0.034319986 = sum of:
        0.034319986 = weight(_text_:allgemeine in 4903) [ClassicSimilarity], result of:
          0.034319986 = score(doc=4903,freq=2.0), product of:
            0.14797503 = queryWeight, product of:
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.028196473 = queryNorm
            0.23193093 = fieldWeight in 4903, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.03125 = fieldNorm(doc=4903)
      0.083333336 = coord(1/12)
    
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur
  5. Chowdhury, G.G.: Template mining for information extraction from digital documents (1999) 0.00
    0.0022284691 = product of:
      0.02674163 = sum of:
        0.02674163 = product of:
          0.05348326 = sum of:
            0.05348326 = weight(_text_:22 in 4577) [ClassicSimilarity], result of:
              0.05348326 = score(doc=4577,freq=2.0), product of:
                0.098739244 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.028196473 = queryNorm
                0.5416616 = fieldWeight in 4577, 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=4577)
          0.5 = coord(1/2)
      0.083333336 = coord(1/12)
    
    Date
    2. 4.2000 18:01:22
  6. Chowdhury, G.G.; Neelameghan, A.; Chowdhury, S.: VOCON: Vocabulary control online in MicroIsis databases (1995) 0.00
    0.0015757657 = product of:
      0.018909188 = sum of:
        0.018909188 = product of:
          0.037818376 = sum of:
            0.037818376 = weight(_text_:22 in 1087) [ClassicSimilarity], result of:
              0.037818376 = score(doc=1087,freq=4.0), product of:
                0.098739244 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.028196473 = queryNorm
                0.38301262 = fieldWeight in 1087, 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=1087)
          0.5 = coord(1/2)
      0.083333336 = coord(1/12)
    
    Source
    Knowledge organization. 22(1995) no.1, S.18-22
  7. Chowdhury, G.G.; Chowdhury, S.: Introduction to digital libraries (2003) 0.00
    0.0012512495 = product of:
      0.015014993 = sum of:
        0.015014993 = weight(_text_:allgemeine in 6119) [ClassicSimilarity], result of:
          0.015014993 = score(doc=6119,freq=2.0), product of:
            0.14797503 = queryWeight, product of:
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.028196473 = queryNorm
            0.10146978 = fieldWeight in 6119, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.2479978 = idf(docFreq=631, maxDocs=44218)
              0.013671875 = fieldNorm(doc=6119)
      0.083333336 = coord(1/12)
    
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur