Search (3 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × author_ss:"Beheshti, J."
  1. Beheshti, J.: Browsing through public access catalogs (1992) 0.00
    0.004164351 = product of:
      0.016657405 = sum of:
        0.016657405 = weight(_text_:information in 2781) [ClassicSimilarity], result of:
          0.016657405 = score(doc=2781,freq=8.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.27153665 = fieldWeight in 2781, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2781)
      0.25 = coord(1/4)
    
    Abstract
    Browsing is an important aspect of the information-seeking activities of library users and is primarily visual. Second-generation OPACs lack the necessary visual characteristics for browsing. These characteristics may be best implemented through simulation of images of books and library shelves on the computer monitors. To mimic users' mental models of the real world may be costly, however, unless new interfaces can tap into existing sources of information. A possible solution may be found in using the information embedded in the MARC record pertaining to the physical description of a book. Public Access Catalog Extension (PACE) is designed as an alternative interface based on mental images of users and MARC records
    Source
    Information technology and libraries. 11(1992) no.3, S.220-228
  2. Beheshti, J.: ¬The evolving OPAC (1997) 0.00
    0.0029446408 = product of:
      0.011778563 = sum of:
        0.011778563 = weight(_text_:information in 5612) [ClassicSimilarity], result of:
          0.011778563 = score(doc=5612,freq=4.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.1920054 = fieldWeight in 5612, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5612)
      0.25 = coord(1/4)
    
    Abstract
    Advances in computer and communication technology technology have had an important impact on OPACs. The client server architecture model, the Internet, protocols, and standards such as Z39.50 have resulted in newly designed interfaces which reduce syntactic and semantic knowledge required to conduct effective online searches. Experimental OPACs have been developed in an attempt to assist users in conceptual transformation of their information needs into searchable queries. These experiments are based primarily on determining users' behaviour at the OPAC terminal, which needs much further study. Other non traditional models for storing and retrieving information should be considered to create an intuitive OPAC
  3. Beheshti, J.; Large, V.; Bialek, M.: PACE: a browsable graphical interface (1996) 0.00
    0.0020821756 = product of:
      0.008328702 = sum of:
        0.008328702 = weight(_text_:information in 7685) [ClassicSimilarity], result of:
          0.008328702 = score(doc=7685,freq=2.0), product of:
            0.06134496 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.034944877 = queryNorm
            0.13576832 = fieldWeight in 7685, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7685)
      0.25 = coord(1/4)
    
    Source
    Information technology and libraries. 15(1996) no.4, S.231-240