Search (62 results, page 1 of 4)

0.009342804 = product of:
  0.02802841 = sum of:
    0.015872892 = weight(_text_:information in 6958) [ClassicSimilarity], result of:
      0.015872892 = score(doc=6958,freq=6.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.23515764 = fieldWeight in 6958, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6958)
    0.012155517 = product of:
      0.03646655 = sum of:
        0.03646655 = weight(_text_:22 in 6958) [ClassicSimilarity], result of:
          0.03646655 = score(doc=6958,freq=2.0), product of:
            0.13464698 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03845047 = queryNorm
            0.2708308 = fieldWeight in 6958, 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=6958)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Source

Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon

0.008121804 = product of:
  0.024365412 = sum of:
    0.010473392 = weight(_text_:information in 2765) [ClassicSimilarity], result of:
      0.010473392 = score(doc=2765,freq=2.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.1551638 = fieldWeight in 2765, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=2765)
    0.01389202 = product of:
      0.04167606 = sum of:
        0.04167606 = weight(_text_:22 in 2765) [ClassicSimilarity], result of:
          0.04167606 = score(doc=2765,freq=2.0), product of:
            0.13464698 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03845047 = queryNorm
            0.30952093 = fieldWeight in 2765, 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=2765)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

Presents a brief report on a study, carried out by the Centre for Interactive Systems Research, City University, to investigate the techniques used for evaluating OPACs: to explore and assess different data gathering methods in studying information seeking behaviour at the on-line catalogue; and to examine how a transaction logging facility could be enhanced to serve as a more effective diagnostic tool. For a full report see British Library research paper 78

Pages

S.20-22

0.0072074337 = product of:
  0.0216223 = sum of:
    0.0111087095 = weight(_text_:information in 3851) [ClassicSimilarity], result of:
      0.0111087095 = score(doc=3851,freq=4.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.16457605 = fieldWeight in 3851, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=3851)
    0.010513592 = product of:
      0.031540774 = sum of:
        0.031540774 = weight(_text_:29 in 3851) [ClassicSimilarity], result of:
          0.031540774 = score(doc=3851,freq=2.0), product of:
            0.13525672 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03845047 = queryNorm
            0.23319192 = fieldWeight in 3851, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.046875 = fieldNorm(doc=3851)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

The Online Public Access Catalog (OPAC) is an information retrieval system characterized by short bibliographic records, mainly of books, journals, and audiovisual materials available in a particular library. This, coupled with a Boolean search interface and a heterogeneous user population with diverse needs, presents special problems for subject searching by end users. To perform effective subject searching in the OPAC system requires a wide range of knowledge and skills. Various approaches to improving the OPAC design for subject searching have been proposed and are reviewed in this entry. The trend toward Web-based OPAC interfaces and the developments in Internet and digital library technologies present fresh opportunities for enhancing the effectiveness of the OPAC system for subject searching.

Date

27. 8.2011 14:24:29

Source

Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates

0.004088619 = product of:
  0.024531713 = sum of:
    0.024531713 = product of:
      0.07359514 = sum of:
        0.07359514 = weight(_text_:29 in 1255) [ClassicSimilarity], result of:
          0.07359514 = score(doc=1255,freq=2.0), product of:
            0.13525672 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03845047 = queryNorm
            0.5441145 = fieldWeight in 1255, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.109375 = fieldNorm(doc=1255)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Source

Program. 26(1992) no.1, S.29-37

0.004060902 = product of:
  0.012182706 = sum of:
    0.005236696 = weight(_text_:information in 168) [ClassicSimilarity], result of:
      0.005236696 = score(doc=168,freq=2.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.0775819 = fieldWeight in 168, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03125 = fieldNorm(doc=168)
    0.00694601 = product of:
      0.02083803 = sum of:
        0.02083803 = weight(_text_:22 in 168) [ClassicSimilarity], result of:
          0.02083803 = score(doc=168,freq=2.0), product of:
            0.13464698 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03845047 = queryNorm
            0.15476047 = fieldWeight in 168, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.03125 = fieldNorm(doc=168)
      0.33333334 = coord(1/3)
  0.33333334 = coord(2/6)

Abstract

The effect that content and layout of bibliographic displays had on the ability of end-users to process catalog information was tested using a 2 x 2 factorial experimental design. Participants were asked to perform two related tasks during the course of the experiment. In the first task, they were asked to select a set of items that they would examine further for a hypothetical paper they must write, using a simulated online catalog to make their assessments of relevance. In the second task, they were asked to examine 20 bibliographic records, decide whether they would choose to examine these items further on the shelf, and identify the data elements that they used to formulate their relevance decision. One group viewed bibliographic records on an interface similar to current online catalogs, one that used data labels and contained data elements commonly found. A second group viewed these records on an interface in which the labels had been removed, but the data elements were the same as those in the first. The third group viewed these records on a labeled display that included enhanced data elements on the brief record display. The final group viewed these records with the same brief record data elements as the third group, but with the labels removed, using ISBD and AACR2 punctuation standards. For the first task, participants using enhanced brief screen interfaces viewed more brief screens and fewer full screens than their counterparts. Screen durations for the second 10 screens were found to have dropped from those of the first 10 screens. Statistical analyses comparing demographic variables to the screen frequencies uncovered many significant differences. Participants using the enhanced-content interfaces made fewer selections from index and full screens, and more selections from brief screens. For the second task, participants who used enhanced-content interfaces were able to make some sort of relevance judgment more frequently than those who used standard-content interfaces.

Date

10. 9.2000 17:38:22

0.0039032027 = product of:
  0.023419216 = sum of:
    0.023419216 = weight(_text_:information in 3672) [ClassicSimilarity], result of:
      0.023419216 = score(doc=3672,freq=10.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.3469568 = fieldWeight in 3672, product of:
          3.1622777 = tf(freq=10.0), with freq of:
            10.0 = termFreq=10.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=3672)
  0.16666667 = coord(1/6)

Abstract

Discusses and illustrates the essential features of user-system interfaces designed to support end user searching. Presents examples of interfaces to support the following basic information seeking functions are presented: problem definition, source selection, problem articulation, examination of results, and information extraction. Argues that present interfaces focus on problem articulation and examination of results functions, and research and development are needed to support the problem definition and information extraction functions

Source

Journal of the American Society for Information Science. 43(1992), S.156-163

0.0037412765 = product of:
  0.022447659 = sum of:
    0.022447659 = weight(_text_:information in 2769) [ClassicSimilarity], result of:
      0.022447659 = score(doc=2769,freq=12.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.3325631 = fieldWeight in 2769, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=2769)
  0.16666667 = coord(1/6)

Abstract

The study assessed the ability of children to categorise concepts that will be used to organise an information retrieval interface. The work was done of Project SEED (Science for Early Educational Development), a project to develop hands-on science programmes for elementary schools. Aims to tailor an interface to the particular skills of children in organising science knowledge. The results are promising for the design of IR interfaces based on children's abilities to manipulate information.

Imprint

Medford, New Jersey : Learned Information

Source

ASIS'89. Managing information and technology. Proceedings of the 52nd annual meeting of the American Society for Information Science, Washington, D.C., 30.10.-2.11.1989. Vol. 26. Ed. by J. Katzer and G.B. Newby

0.0037029032 = product of:
  0.022217419 = sum of:
    0.022217419 = weight(_text_:information in 2236) [ClassicSimilarity], result of:
      0.022217419 = score(doc=2236,freq=4.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.3291521 = fieldWeight in 2236, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=2236)
  0.16666667 = coord(1/6)

Imprint

Medford, NJ : Learned Information, Inc.

0.0037029032 = product of:
  0.022217419 = sum of:
    0.022217419 = weight(_text_:information in 1773) [ClassicSimilarity], result of:
      0.022217419 = score(doc=1773,freq=4.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.3291521 = fieldWeight in 1773, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=1773)
  0.16666667 = coord(1/6)

Imprint

Medford, NJ : Learned Information

0.0030857527 = product of:
  0.018514516 = sum of:
    0.018514516 = weight(_text_:information in 3705) [ClassicSimilarity], result of:
      0.018514516 = score(doc=3705,freq=4.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27429342 = fieldWeight in 3705, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=3705)
  0.16666667 = coord(1/6)

Abstract

Selected papers presented by leading professionals at a mid-year conference of ASIS, along with additional commentary by guest editors comprise this volume, which condenses a broad range of information into a cohesive overview of the state of the art of interface design

0.0030857527 = product of:
  0.018514516 = sum of:
    0.018514516 = weight(_text_:information in 222) [ClassicSimilarity], result of:
      0.018514516 = score(doc=222,freq=4.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27429342 = fieldWeight in 222, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=222)
  0.16666667 = coord(1/6)

PRECIS

Bibliographic on / line information retrieval services

Subject

Bibliographic on / line information retrieval services

0.0030547397 = product of:
  0.018328438 = sum of:
    0.018328438 = weight(_text_:information in 2640) [ClassicSimilarity], result of:
      0.018328438 = score(doc=2640,freq=2.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27153665 = fieldWeight in 2640, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=2640)
  0.16666667 = coord(1/6)

Source

Perspectives in information management 1. Ed.: C. Oppenheim

0.0030547397 = product of:
  0.018328438 = sum of:
    0.018328438 = weight(_text_:information in 3865) [ClassicSimilarity], result of:
      0.018328438 = score(doc=3865,freq=2.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27153665 = fieldWeight in 3865, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=3865)
  0.16666667 = coord(1/6)

Source

Information technology and libraries. 6(1987), S.20-33

0.0030547397 = product of:
  0.018328438 = sum of:
    0.018328438 = weight(_text_:information in 273) [ClassicSimilarity], result of:
      0.018328438 = score(doc=273,freq=2.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27153665 = fieldWeight in 273, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=273)
  0.16666667 = coord(1/6)

Source

Information technology and libraries. 11(1992), S.62-76

0.0030547397 = product of:
  0.018328438 = sum of:
    0.018328438 = weight(_text_:information in 2771) [ClassicSimilarity], result of:
      0.018328438 = score(doc=2771,freq=8.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.27153665 = fieldWeight in 2771, 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=2771)
  0.16666667 = coord(1/6)

Abstract

The University of Toronto hopes to encourage development of a campus-wide information system consisting of many walk-up-and-use components. The first component to be developed was an instructional program for users of the library's online catalog. The interface had to be attractive, usable by novices, and flexible enough to carry the content. Much effort was expended in ensuring that it met these criteria. User testing played an important role in the design of the interface. The design and testing of the system's entry point, navigation aids, and templates for spatial arrangements of information on the screen are discussed

Source

Behaviour and information technology. 11(1992) no.1, S.1-12

0.0030547397 = product of:
  0.018328438 = sum of:
    0.018328438 = weight(_text_:information in 2781) [ClassicSimilarity], result of:
      0.018328438 = score(doc=2781,freq=8.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = 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)
  0.16666667 = coord(1/6)

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

0.0030234081 = product of:
  0.018140448 = sum of:
    0.018140448 = weight(_text_:information in 1936) [ClassicSimilarity], result of:
      0.018140448 = score(doc=1936,freq=6.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.2687516 = fieldWeight in 1936, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=1936)
  0.16666667 = coord(1/6)

Abstract

Präsentation folgender Gestaltungsprinzipien: (1) Help the user develop an understanding of the operation of the interface and the search process; (2) Provide information to help users judge the value of continuing a search path; (3) Assist the user in refining the search query or search topic; (4) Provide verbal labels suggestive of meaning

Source

Bulletin of the American Society for Information Science. 24(1998), April/May, S.17-20

0.0030234081 = product of:
  0.018140448 = sum of:
    0.018140448 = weight(_text_:information in 2111) [ClassicSimilarity], result of:
      0.018140448 = score(doc=2111,freq=6.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.2687516 = fieldWeight in 2111, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=2111)
  0.16666667 = coord(1/6)

Abstract

Modern online information systems have been criticized as being too complicated for the average information seeker. To overcome this problem interfaces have been developed to assist users at all stages of the information transfer process from searching to analysis and evaluation of retrieval data. However, the effectiveness of an interface will depend on the skills of the user. Further development of interfaces will be aided by the use of Windows and mouse controlled systems

0.0030234081 = product of:
  0.018140448 = sum of:
    0.018140448 = weight(_text_:information in 5110) [ClassicSimilarity], result of:
      0.018140448 = score(doc=5110,freq=6.0), product of:
        0.067498945 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03845047 = queryNorm
        0.2687516 = fieldWeight in 5110, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=5110)
  0.16666667 = coord(1/6)

Abstract

Describes the general features of a personal portable information interface to OPACs, the framework of which encompasses the attributes of: access; accuracy; attractiveness; assistance; appropriateness; and adaptibility. This model can be used as a standard with which to compare available networked services and resources to specific user populations

0.0029204423 = product of:
  0.017522654 = sum of:
    0.017522654 = product of:
      0.05256796 = sum of:
        0.05256796 = weight(_text_:29 in 573) [ClassicSimilarity], result of:
          0.05256796 = score(doc=573,freq=2.0), product of:
            0.13525672 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.03845047 = queryNorm
            0.38865322 = fieldWeight in 573, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.078125 = fieldNorm(doc=573)
      0.33333334 = coord(1/3)
  0.16666667 = coord(1/6)

Date

20.10.2000 13:29:02