Search (4 results, page 1 of 1)

0.0236903 = product of:
  0.0473806 = sum of:
    0.0473806 = product of:
      0.0947612 = sum of:
        0.0947612 = weight(_text_:22 in 4577) [ClassicSimilarity], result of:
          0.0947612 = score(doc=4577,freq=2.0), product of:
            0.17494538 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04995828 = 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)
  0.5 = coord(1/2)

Date

2. 4.2000 18:01:22

0.016751572 = product of:
  0.033503145 = sum of:
    0.033503145 = product of:
      0.06700629 = sum of:
        0.06700629 = weight(_text_:22 in 1087) [ClassicSimilarity], result of:
          0.06700629 = score(doc=1087,freq=4.0), product of:
            0.17494538 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04995828 = 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)
  0.5 = coord(1/2)

Source

Knowledge organization. 22(1995) no.1, S.18-22

0.014648988 = product of:
  0.029297976 = sum of:
    0.029297976 = product of:
      0.05859595 = sum of:
        0.05859595 = weight(_text_:opinion in 6119) [ClassicSimilarity], result of:
          0.05859595 = score(doc=6119,freq=4.0), product of:
            0.3271964 = queryWeight, product of:
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.04995828 = queryNorm
            0.17908496 = fieldWeight in 6119, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              6.5493927 = idf(docFreq=171, maxDocs=44218)
              0.013671875 = fieldNorm(doc=6119)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Footnote

Chapter 13 an DL evaluation merges criteria from traditional library evaluation with criteria from user interface design and information retrieval. Quantitative, macro-evaluation techniques are emphasized, and again, some DL evaluation projects and reports are illustrated. A very brief chapter an the role of librarians in the DL follows, emphasizing that traditional reference skills are paramount to the success of the digital librarian, but that he should also be savvy in Web page and user interface design. A final chapter an research trends in digital libraries seems a bit incoherent. It mentions many of the previous chapters' topics, and would possibly be better organized if written as summary sections and distributed among the other chapters. The book's breadth is quite expansive, touching an both fundamental and advanced topics necessary to a well-rounded DL education. As the book is thoroughly referenced to DL and DL-related research projects, it serves as a useful starting point for those interested in more in depth learning. However, this breadth is also a weakness. In my opinion, the sheer number of research projects and papers surveyed leaves the authors little space to critique and summarize key issues. Many of the case studies are presented as itemized lists and not used to exemplify specific points. I feel that an introductory text should exercise some editorial and evaluative rights to create structure and organization for the uninitiated. Case studies should be carefully Chosen to exemplify the specific issues and differences and strengths highlighted. It is lamentable that in many of the descriptions of research projects, the authors tend to give more historical and funding Background than is necessary and miss out an giving a synthesis of the pertinent details.
Another weakness of the book is its favoritism towards the authors' own works. To a large extent, this bias is natural as the authors know their own works best. However, in an introductory text, it is critical to reference the most appropriate source and give a balanced view of the field. In this respect, 1 feel the book could be more objective in its selection of references and research projects. Introduction to Digital Libraries is definitely a book written for a purpose. LIS undergraduates and "practicing professionals who need to know about recent developments in the field of digital libraries" (p. xiv) will find this book a fine introduction, as it is clearly written and accessible to laymen, giving explanations without delving into terminology and math. As it surveys a large number of projects, it is also an ideal starting point for students to pick and investigate particular DL research projects. However, graduate LIS students who already have a solid understanding of library fundamentals as well as Computer science students may find this volume lacking in details. Alternative texts such as Lesk (1999) and Arms (2000) are possibly more suitable for those who need to investigate topics in depth. For the experienced practitioner or researcher delving into the DL field for the first time, the recent 2002 ARIST chapter by Fox and Urs may also be a suitable alternative. In their introduction, the authors ask, "What are digital libraries? How do they differ from online databases and search services? Will they replace print libraries? What impact will they have an people and the society?" (p. 3). To answer these questions, Chowdhury and Chowdhury offer a multitude of case studies to let the audience draw their own conclusions. To this end, it is my opinion that Introduction to Digital Libraries serves a useful purpose as a supplemental text in the digital library Curriculum but misses the mark of being an authoritative textbook."

0.010152985 = product of:
  0.02030597 = sum of:
    0.02030597 = product of:
      0.04061194 = sum of:
        0.04061194 = weight(_text_:22 in 4902) [ClassicSimilarity], result of:
          0.04061194 = score(doc=4902,freq=2.0), product of:
            0.17494538 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04995828 = 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)
  0.5 = coord(1/2)

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.