Search (8 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Informationsdienstleistungen"
  1. Cross, A.: ¬The OPAC and community information (1997) 0.00
    0.0030255679 = product of:
      0.0060511357 = sum of:
        0.0060511357 = product of:
          0.012102271 = sum of:
            0.012102271 = weight(_text_:a in 1751) [ClassicSimilarity], result of:
              0.012102271 = score(doc=1751,freq=10.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.22789092 = fieldWeight in 1751, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1751)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Hertfordshire Libraries, Arts & Information, UK, has made its library catalogue and a community information resource of over 10.000 items available on the WWW through the ALS InfoCentre system. It is currently discussing establishing a managed service for the WWW server in order to maintain a fresh presence on the Web and to sell Web space to recoup investment
    Type
    a
  2. Meghabghab, G.V.; Meghabghab, D.B.: INN: an intelligent negotiating neural network for information systems : a design model (1994) 0.00
    0.0026849252 = product of:
      0.0053698504 = sum of:
        0.0053698504 = product of:
          0.010739701 = sum of:
            0.010739701 = weight(_text_:a in 8490) [ClassicSimilarity], result of:
              0.010739701 = score(doc=8490,freq=14.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.20223314 = fieldWeight in 8490, product of:
                  3.7416575 = tf(freq=14.0), with freq of:
                    14.0 = termFreq=14.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=8490)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Research on the use of online catalogues reveals that information retrieval by subject is the most common form, but the least successful. Most problems are attributed to users' search terms, which are either to broad or too specific. Presents an Intelligent Negotiating Neural Network (INN) design model for solving this aspect of online catalogues. The network is designed to act as as electronic information specialist capable of learning to negotiate a user's query and translate it into a true, well formulate statement prior to accessing an online catalogue. The network's architecture includes 4 dimensions: conceptual graphs for queries, inheritance and recognition, knowledge base, and modules. This architecture corresponds to four elements of the traditional query negotiation interview performed by information specialists. These are: query/concept; types of sources/answer-providing tools; types of literature; and time frame. 3 different sessions of the user interface are presented: negotiation of a broadly stae query; negotiation of a norrowly stae query; and negotiation of a query for which concepts are nonexistent in the knowledge base
    Type
    a
  3. Furner, J.; Willett, P.: ¬A survey of hypertext-based public-access point-of-information systems in UK libraries (1995) 0.00
    0.002269176 = product of:
      0.004538352 = sum of:
        0.004538352 = product of:
          0.009076704 = sum of:
            0.009076704 = weight(_text_:a in 2044) [ClassicSimilarity], result of:
              0.009076704 = score(doc=2044,freq=10.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.1709182 = fieldWeight in 2044, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2044)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    We have recently completed a survey of the operational use of hypertext-based information systems in academic, public and special libraries in the UK. A literatur search, questionnaire and both telephone and face-to-face interviews demonstrate that the principle application of hypertext systems is for the implementation of public-access point-of-information systems, which provide guidance to the users of local information resources. In this paper, we describe the principle issuse relating to the design and usage of these systems that were raised in the interviews and that we experienced when using the systems for ourselves. We then present a set of technical recommendations with the intention of helping the developers of future systems, with special attention being given to the need to develop effective methods for system evaluation
    Type
    a
  4. Martin, L.M.: Evaluating OPACs or, OPACs are reference tools, too! (1992) 0.00
    0.001913537 = product of:
      0.003827074 = sum of:
        0.003827074 = product of:
          0.007654148 = sum of:
            0.007654148 = weight(_text_:a in 4550) [ClassicSimilarity], result of:
              0.007654148 = score(doc=4550,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.14413087 = fieldWeight in 4550, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4550)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Althogh the library literature contains numerous papers on the functional and performance evaluation of OPACs, as well as on the evaluation of many facets of reference service, it presents little assistance for the evaluation of OPACs as the central facet of reference service. In order to alleviate this lack, evaluates OPACs as if they were any other reference tool, judging them against Norman D. Stevens' classic 18 criteria for the evaluation of reference books. Includes a selective bibliography of works on both OPAC and reference book evaluation
    Type
    a
  5. Thompson, D.M.: Online public access catalogs and user instruction (1994) 0.00
    0.001674345 = product of:
      0.00334869 = sum of:
        0.00334869 = product of:
          0.00669738 = sum of:
            0.00669738 = weight(_text_:a in 1047) [ClassicSimilarity], result of:
              0.00669738 = score(doc=1047,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.12611452 = fieldWeight in 1047, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1047)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Reports the results of a questionnaire survey of 414 libraries in 4 categories: academic libraries; school libraries; public libraries and special libraries; to assess the status of library training initiatives with respect to the libraries' OPACs. Answers were sought to 3 questions: how have libraries modifoed OPAC software; have libraries developed any instructional methods for teaching the use of OPACs; and to what extent are online catalogues self instructional? Results show that most participants' libraries have modofied library OPAC software; librarians continue to teach use of the online catalogue, depending heavily on handouts; few systems have built-in tutorials for users; and very fes have developed computer assisted instruction for the OPAC
    Type
    a
  6. Webb, J.: Innovative approaches to improve visibility : public access to public information in the Oregon Public Access Catalog (1994) 0.00
    0.001674345 = product of:
      0.00334869 = sum of:
        0.00334869 = product of:
          0.00669738 = sum of:
            0.00669738 = weight(_text_:a in 1587) [ClassicSimilarity], result of:
              0.00669738 = score(doc=1587,freq=4.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.12611452 = fieldWeight in 1587, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1587)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The Oregon State Library, USA, provides free, statewide access to its online system to libraries and government agencies. The Oregon Public Access Catalog (ORPAC) includes more than 20 databases and files besides online catalogues. Most of these external databases are Oregon state government state agency information resources. These include the full text of the oregon Revised Statutes, the Oregon Administrative Rules, the Opinions of the State Appelate Courts, and a database of all vacant state government positions. This service provide public access to public information and has made the ORPAC one of the most widely known state government information services
    Type
    a
  7. Doman, D.: MAGGIE'S PLACE : connecting with the community ate the Pikes Peak Library District (1994) 0.00
    0.001353075 = product of:
      0.00270615 = sum of:
        0.00270615 = product of:
          0.0054123 = sum of:
            0.0054123 = weight(_text_:a in 8576) [ClassicSimilarity], result of:
              0.0054123 = score(doc=8576,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.10191591 = fieldWeight in 8576, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0625 = fieldNorm(doc=8576)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a
  8. Molholt, P.; Forsythe, K.: Opening up information access through the electronic catalogue (1991) 0.00
    0.0011839407 = product of:
      0.0023678814 = sum of:
        0.0023678814 = product of:
          0.0047357627 = sum of:
            0.0047357627 = weight(_text_:a in 524) [ClassicSimilarity], result of:
              0.0047357627 = score(doc=524,freq=2.0), product of:
                0.053105544 = queryWeight, product of:
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.046056706 = queryNorm
                0.089176424 = fieldWeight in 524, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.153047 = idf(docFreq=37942, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=524)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Type
    a