Search (9 results, page 1 of 1)

  • × author_ss:"Tenopir, C."
  1. Tenopir, C.: Reference services from RLG (1995) 0.06
    0.05500804 = product of:
      0.11001608 = sum of:
        0.11001608 = sum of:
          0.06081203 = weight(_text_:bibliographic in 2612) [ClassicSimilarity], result of:
            0.06081203 = score(doc=2612,freq=2.0), product of:
              0.17672792 = queryWeight, product of:
                3.893044 = idf(docFreq=2449, maxDocs=44218)
                0.045395818 = queryNorm
              0.34409973 = fieldWeight in 2612, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.893044 = idf(docFreq=2449, maxDocs=44218)
                0.0625 = fieldNorm(doc=2612)
          0.04920405 = weight(_text_:22 in 2612) [ClassicSimilarity], result of:
            0.04920405 = score(doc=2612,freq=2.0), product of:
              0.15896842 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045395818 = queryNorm
              0.30952093 = fieldWeight in 2612, 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=2612)
      0.5 = coord(1/2)
    
    Abstract
    Describes the variety of search services supporting library reference functions offered by the RLG in the USA. The best known of these is RLIN, the massive bibliographic database and related services originally developed for shared cataloguing. In the last few years RLG has added CitaDel, an online search system that provides access to indexing/abstracting databases; and Zephyr, a Z39.50 server that amkes the RLIN and CitaDel databases searchable through a library's online catalogue. RLG also offers document delivery connections, including Ariel and Internet based document delivery software, for a full complement of online reference support for academic and public libraries
    Date
    25.11.1995 19:22:01
  2. Tenopir, C.: Linking to full texts (1998) 0.02
    0.021500299 = product of:
      0.043000598 = sum of:
        0.043000598 = product of:
          0.086001195 = sum of:
            0.086001195 = weight(_text_:bibliographic in 2262) [ClassicSimilarity], result of:
              0.086001195 = score(doc=2262,freq=4.0), product of:
                0.17672792 = queryWeight, product of:
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.045395818 = queryNorm
                0.4866305 = fieldWeight in 2262, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2262)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Describes the links which major online indexing and bibliographic services are providing from article citations to the corresponding electronic full text. Services covered include OCLC's FirstSearch and its Electronic Collections Online, Ovid, PubMed and UMI/ProQuest Direct. Discusses the value of links to electronic full text vis a vis direct searching of the full text, arguing for the superiority of the former and stressing that indexing services and bibliographic databases have a strong future for this reason
  3. Tenopir, C.; Ennis, L.: ¬The digital reference work of academic libraries (1998) 0.02
    0.015221728 = product of:
      0.030443456 = sum of:
        0.030443456 = product of:
          0.060886912 = sum of:
            0.060886912 = weight(_text_:22 in 5170) [ClassicSimilarity], result of:
              0.060886912 = score(doc=5170,freq=4.0), product of:
                0.15896842 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045395818 = queryNorm
                0.38301262 = fieldWeight in 5170, 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=5170)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Online. 22(1998) no.4, S.22-28
  4. Tenopir, C.: Online databases : the new generation of online search software (1993) 0.02
    0.0152030075 = product of:
      0.030406015 = sum of:
        0.030406015 = product of:
          0.06081203 = sum of:
            0.06081203 = weight(_text_:bibliographic in 6728) [ClassicSimilarity], result of:
              0.06081203 = score(doc=6728,freq=2.0), product of:
                0.17672792 = queryWeight, product of:
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.045395818 = queryNorm
                0.34409973 = fieldWeight in 6728, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.0625 = fieldNorm(doc=6728)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Examines why online systems and CD-ROMs are producing a greater need for bibliographic instruction. Most online systems and CD-ROMs operate with the same software developed for the first online systems 20 years ago. Innovative search techniques such as natural language have spread from inhouse databases to the commercial online and CD-ROM environment. Personal Librarian and Westlaw Is Natural represent the online second generation. Discusses Personal Librarian; CD-ROM products; online expansion and DIALOG and Personal Library Software
  5. Tenopir, C.: Full-text retrieval : systems and files (1994) 0.02
    0.0152030075 = product of:
      0.030406015 = sum of:
        0.030406015 = product of:
          0.06081203 = sum of:
            0.06081203 = weight(_text_:bibliographic in 2424) [ClassicSimilarity], result of:
              0.06081203 = score(doc=2424,freq=2.0), product of:
                0.17672792 = queryWeight, product of:
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.045395818 = queryNorm
                0.34409973 = fieldWeight in 2424, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.0625 = fieldNorm(doc=2424)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    State of the art review of the development of full text databases, encompassing: types of commercially available full text databases; online systems for full text databases; CD-ROM databases for full text databases; full text databases on magnetic discs or tapes; creation of full text databases; searching and display requirements for full text searching and software. Concludes that bibliographic information services without full text support solve only half of the retrieval problems
  6. Tenopir, C.: Integrating electronic reference (1995) 0.01
    0.012301013 = product of:
      0.024602026 = sum of:
        0.024602026 = product of:
          0.04920405 = sum of:
            0.04920405 = weight(_text_:22 in 2616) [ClassicSimilarity], result of:
              0.04920405 = score(doc=2616,freq=2.0), product of:
                0.15896842 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045395818 = queryNorm
                0.30952093 = fieldWeight in 2616, 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=2616)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    25.11.1995 19:22:01
  7. Tenopir, C.: Online systems for information access and retrieval (2008) 0.01
    0.011402255 = product of:
      0.02280451 = sum of:
        0.02280451 = product of:
          0.04560902 = sum of:
            0.04560902 = weight(_text_:bibliographic in 5587) [ClassicSimilarity], result of:
              0.04560902 = score(doc=5587,freq=2.0), product of:
                0.17672792 = queryWeight, product of:
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.045395818 = queryNorm
                0.2580748 = fieldWeight in 5587, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.893044 = idf(docFreq=2449, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5587)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In 1973 F. W. Lancaster published the first textbook about online information retrieval (with E. G. Fayen). That text and his later writings and books on the topics relating to online searching set the precedent for many books to follow. His early work also advocated many changes to the state-of-the-art systems and anticipated many of the characteristics of modern online information retrieval systems. Although the basic underlying structure of modern systems is still similar to what Lancaster wrote about thirty years ago, many of the changes he advocated have occurred. From an era of bibliographic databases on command-driven systems searched by library professionals, online systems have evolved to have friendlier interfaces, include full texts or links to full texts, and are targeted to the end users of the information. The information industry has evolved, as have the online search systems and tools that are so commonplace today.
  8. Tenopir, C.; Neufang, R.: Electronic reference options : how they stack up in research libraries (1992) 0.01
    0.010763386 = product of:
      0.021526773 = sum of:
        0.021526773 = product of:
          0.043053545 = sum of:
            0.043053545 = weight(_text_:22 in 2343) [ClassicSimilarity], result of:
              0.043053545 = score(doc=2343,freq=2.0), product of:
                0.15896842 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045395818 = queryNorm
                0.2708308 = fieldWeight in 2343, 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=2343)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Online. 16(1992) no.2, S.22-28
  9. Allard, S.; Levine, K.J.; Tenopir, C.: Design engineers and technical professionals at work : observing information usage in the workplace (2009) 0.01
    0.0076881335 = product of:
      0.015376267 = sum of:
        0.015376267 = product of:
          0.030752534 = sum of:
            0.030752534 = weight(_text_:22 in 2735) [ClassicSimilarity], result of:
              0.030752534 = score(doc=2735,freq=2.0), product of:
                0.15896842 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045395818 = queryNorm
                0.19345059 = fieldWeight in 2735, 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=2735)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 12:43:37