Search (88 results, page 1 of 5)

0.021661952 = product of:
  0.06498586 = sum of:
    0.06498586 = sum of:
      0.0234353 = weight(_text_:of in 6958) [ClassicSimilarity], result of:
        0.0234353 = score(doc=6958,freq=16.0), product of:
          0.06850986 = queryWeight, product of:
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.043811057 = queryNorm
          0.34207192 = fieldWeight in 6958, product of:
            4.0 = tf(freq=16.0), with freq of:
              16.0 = termFreq=16.0
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.0546875 = fieldNorm(doc=6958)
      0.041550554 = weight(_text_:22 in 6958) [ClassicSimilarity], result of:
        0.041550554 = score(doc=6958,freq=2.0), product of:
          0.15341885 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.043811057 = 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)

Abstract

Reports on the design of a GUI for the Okapi 'best match' retrieval system developed at the Centre for Interactive Systems Research, City University, UK, for online library catalogues. The X-Windows interface includes an interactive query expansion (IQE) facilty which involves the user in the selection of query terms to reformulate a search. Presents the design rationale, based on a game board metaphor, and describes the features of each of the stages of the search interaction. Reports on the early operational field trial and discusses relevant evaluation issues and objectives

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

0.020292649 = product of:
  0.060877945 = sum of:
    0.060877945 = sum of:
      0.0133916 = weight(_text_:of in 2765) [ClassicSimilarity], result of:
        0.0133916 = score(doc=2765,freq=4.0), product of:
          0.06850986 = queryWeight, product of:
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.043811057 = queryNorm
          0.19546966 = fieldWeight in 2765, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.0625 = fieldNorm(doc=2765)
      0.047486346 = weight(_text_:22 in 2765) [ClassicSimilarity], result of:
        0.047486346 = score(doc=2765,freq=2.0), product of:
          0.15341885 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.043811057 = 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)

Pages

S.20-22

Source

OPACs and the user: Proc. of the 3rd Anglo-Nordic seminar, Apr. 90

0.012378259 = product of:
  0.037134774 = sum of:
    0.037134774 = sum of:
      0.0133916 = weight(_text_:of in 168) [ClassicSimilarity], result of:
        0.0133916 = score(doc=168,freq=16.0), product of:
          0.06850986 = queryWeight, product of:
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.043811057 = queryNorm
          0.19546966 = fieldWeight in 168, product of:
            4.0 = tf(freq=16.0), with freq of:
              16.0 = termFreq=16.0
            1.5637573 = idf(docFreq=25162, maxDocs=44218)
            0.03125 = fieldNorm(doc=168)
      0.023743173 = weight(_text_:22 in 168) [ClassicSimilarity], result of:
        0.023743173 = score(doc=168,freq=2.0), product of:
          0.15341885 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.043811057 = 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)

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

0.0051669977 = product of:
  0.015500993 = sum of:
    0.015500993 = product of:
      0.031001985 = sum of:
        0.031001985 = weight(_text_:of in 2395) [ClassicSimilarity], result of:
          0.031001985 = score(doc=2395,freq=28.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.45251858 = fieldWeight in 2395, product of:
              5.2915025 = tf(freq=28.0), with freq of:
                28.0 = termFreq=28.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2395)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

A research project at Middlesex Polytechnic is examning the problems of subject access in an OPAC. A series of user studies have been carried out which examined students' use of existing catalogue facilities, which in turn led to the experimental evaluation of various interface designs for an online catalogue. The experiments were primarily concerned with the effect of the following variables on the speed and accuracy of retrieval of specific items, the use of colour, the speed of presentation of information, the amount of information on a screen, the paging and scrolling of information, the position of a sought item within a list

0.0049907546 = product of:
  0.014972264 = sum of:
    0.014972264 = product of:
      0.029944528 = sum of:
        0.029944528 = weight(_text_:of in 1773) [ClassicSimilarity], result of:
          0.029944528 = score(doc=1773,freq=20.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.43708345 = fieldWeight in 1773, product of:
              4.472136 = tf(freq=20.0), with freq of:
                20.0 = termFreq=20.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0625 = fieldNorm(doc=1773)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Reports a survey conducted in April 1997 of 136 Japanese WWW and Telnet OPACs from the persepctive of their functions and user interfaces. These included: types of searchable files; access points; kinds of displays; login commands; search methods; Boolean operation; help functions; search history; and browsing of indexed terms. Results indicate a sharp rise in the number of WWW OPACs and problems with the provision of functions and user interfaces by Japanese WWW OPACs

Source

Annals of Japan Society of Library Science. 43(1997) no.3, S.103-116

0.0049790437 = product of:
  0.014937131 = sum of:
    0.014937131 = product of:
      0.029874261 = sum of:
        0.029874261 = weight(_text_:of in 3379) [ClassicSimilarity], result of:
          0.029874261 = score(doc=3379,freq=26.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.43605784 = fieldWeight in 3379, product of:
              5.0990195 = tf(freq=26.0), with freq of:
                26.0 = termFreq=26.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3379)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Reports results of an evaluation study of 3 WWW based prototypes for bibliographic displays developed as part of an ongoing research project at the Faculty of Information Studies, Toronto University. The development of these prototypes builds upon results obtained in earlier phases of the project that addressed issues of both the content and form of bibliographic displays in OPACs. Anticipation of continued growth in the number of catalogues available through the WWW, combined with research evidence that existing Web based displays have not shown improvement over their text based counterparts, motivated the development of these prototypes for use on the Web. Reports findings from a focus group evaluation of the 3 prototypes and makes suggestions for future research

0.0048322775 = product of:
  0.014496832 = sum of:
    0.014496832 = product of:
      0.028993664 = sum of:
        0.028993664 = weight(_text_:of in 3705) [ClassicSimilarity], result of:
          0.028993664 = score(doc=3705,freq=12.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.42320424 = fieldWeight in 3705, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.078125 = fieldNorm(doc=3705)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

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

0.0044112457 = product of:
  0.013233736 = sum of:
    0.013233736 = product of:
      0.026467472 = sum of:
        0.026467472 = weight(_text_:of in 4243) [ClassicSimilarity], result of:
          0.026467472 = score(doc=4243,freq=10.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.38633084 = fieldWeight in 4243, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.078125 = fieldNorm(doc=4243)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Traces the improvements in the capability of microcomputers to support graphics as they have led to improved, graphics and menu based interfaces for OPACs. Presents a state of the art review covering the development of OPAC screens, OPAC front end design; and the planning and implementation of OPAC front ends

0.00436691 = product of:
  0.01310073 = sum of:
    0.01310073 = product of:
      0.02620146 = sum of:
        0.02620146 = weight(_text_:of in 2775) [ClassicSimilarity], result of:
          0.02620146 = score(doc=2775,freq=20.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.38244802 = fieldWeight in 2775, product of:
              4.472136 = tf(freq=20.0), with freq of:
                20.0 = termFreq=20.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2775)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Browse searching of online catalogs and electronic indexes is a popular means of retrieving information, but some subject heading lists are so extensive that browsing them can be difficult and time-consuming. This resaerch tested one way of presenting a browse interface to reduce the amount of scanning of subject headings required. It found that a hierarchical presentation of headings reduced the amount of scanning required by more than 50% without any reduction in the effectiveness of the search. Better browsable displays of this sort can improve the efficiency of searching but appear not to alter effectivenenss

0.004175565 = product of:
  0.012526695 = sum of:
    0.012526695 = product of:
      0.02505339 = sum of:
        0.02505339 = weight(_text_:of in 6957) [ClassicSimilarity], result of:
          0.02505339 = score(doc=6957,freq=14.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.36569026 = fieldWeight in 6957, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0625 = fieldNorm(doc=6957)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Reports on the state-of-the art of online catalogues and considers propects for future developments. Describes the background and origins of OPACs. Considers the limitations of second generation systems which are failing to meet the needs of users. Examines new approaches to their design which include: user-centre design, interface design, use of advanced retrieval techniques, and their use in the network environment. Considers future developments of OPACs taking into account developments in other electronic information sources

0.004142815 = product of:
  0.012428444 = sum of:
    0.012428444 = product of:
      0.024856888 = sum of:
        0.024856888 = weight(_text_:of in 1100) [ClassicSimilarity], result of:
          0.024856888 = score(doc=1100,freq=18.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.36282203 = fieldWeight in 1100, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1100)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Reviews the development of the British Library OPAC services leading up to the launch of OPAC 97, offering access to 9 mio bibliographic records and attempts to show the value of a user centred approach in the project management involved in developing such a service as recommended by Human Computer Interaction (HCI) studies. Reviews the evaluation studies of the Online Catalogue, the Network OPAC, a web prototype interface and of OPAC 97 and discusses the results in relation to the OPAC 97 project. Although the OPAC 97 interface made use of various HCI recommendations, user feedback sometimes contradicted these in specific instances, revealing the value of detailed user evaluation in developing services

0.004142815 = product of:
  0.012428444 = sum of:
    0.012428444 = product of:
      0.024856888 = sum of:
        0.024856888 = weight(_text_:of in 2198) [ClassicSimilarity], result of:
          0.024856888 = score(doc=2198,freq=18.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.36282203 = fieldWeight in 2198, product of:
              4.2426405 = tf(freq=18.0), with freq of:
                18.0 = termFreq=18.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2198)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Over the last couple of years, there has been a surge of activity in the library automation arena directed toward improved user interfaces. As Breeding looks at the events and activities that have transpired over the last year or so, Breeding sees an incredible amount of progress in creating interfaces that help librarians compete better in an ever more crowded landscape of information providers. It's strategically important for libraries to have technologies in place that will optimize delivery of content and services in the context of today's Web. Breeding believes that failure to make progress in this area can foster a creep of irrelevancy as potential users increasingly rely on information resources provided by entities other than libraries.

0.0041003237 = product of:
  0.01230097 = sum of:
    0.01230097 = product of:
      0.02460194 = sum of:
        0.02460194 = weight(_text_:of in 3324) [ClassicSimilarity], result of:
          0.02460194 = score(doc=3324,freq=6.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.3591007 = fieldWeight in 3324, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.09375 = fieldNorm(doc=3324)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Footnote

Rez. in: Journal of academic librarianship 18(1992) no.1, S.42-43 (R.J. Carande)

Imprint

Urbana-Champaign, IL : University of Illinois, GSLIS

0.003925761 = product of:
  0.011777283 = sum of:
    0.011777283 = product of:
      0.023554565 = sum of:
        0.023554565 = weight(_text_:of in 3369) [ClassicSimilarity], result of:
          0.023554565 = score(doc=3369,freq=22.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34381276 = fieldWeight in 3369, product of:
              4.690416 = tf(freq=22.0), with freq of:
                22.0 = termFreq=22.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.046875 = fieldNorm(doc=3369)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The ENQUIRE project forms part of a series of investigations on query expansion in the Okapi experimental text retrieval system. A configurable user interface was implemented as an evaluative tool and tested in two locations on two different databases: the library catalogue of The London Business SChool and the computing section of INSPEC. The system offered a range of possible strategies based on thesaural terms for reformulating queries. These could be initiated automatically by the system or interactively with the user. The formative phase of the evaluation established the appropriateness and usability of the interface as well as users' perceptions of the underlying functionality. The aim of the large scale field trial was to determine to what extent user would select thesaural terms suggested by the system to reformulate queries, and to evaluate the effectiveness of a new dynamic form of query expansion implemented for this project

0.003925761 = product of:
  0.011777283 = sum of:
    0.011777283 = product of:
      0.023554565 = sum of:
        0.023554565 = weight(_text_:of in 2772) [ClassicSimilarity], result of:
          0.023554565 = score(doc=2772,freq=22.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34381276 = fieldWeight in 2772, product of:
              4.690416 = tf(freq=22.0), with freq of:
                22.0 = termFreq=22.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.046875 = fieldNorm(doc=2772)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Reports the results of a research project, conducted by the School of Computing and Mathematics and the Library of Huddersfield Polytechnic, into the problem of matching the user interface of OPACs to the needs of users. The project brought together issues involving: Human Computer Instruction (HCI); system methods in the determinination of user requirements; and user centred design, and prototyping in a sequence of design and evaluation cycles. These cycles applied appropriate HCI styles, techniques and equipment (such as Graphical User Interface (GUI) and a mouse pointing device) and incorporated the lessons of each evaluation, to produce an OPAC user interface, ICARUS, which differs considerably in style, behaviour and characteristcs from those commonly encountered in academic and public libraries. The project concluded by evaluating ICARUS, against the BLCMP OPAC with 38 subjects in the Library of Huddersfield Polytechnic, and demonstrating a significant improvement in performance for different tasks for the ICARUS interface

Imprint

Huddersfield : The Polytechnic of Huddersfield

0.0039058835 = product of:
  0.01171765 = sum of:
    0.01171765 = product of:
      0.0234353 = sum of:
        0.0234353 = weight(_text_:of in 2768) [ClassicSimilarity], result of:
          0.0234353 = score(doc=2768,freq=16.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34207192 = fieldWeight in 2768, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2768)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Presents the selected findings of a research project based on the British Library Network Online Public Access Catalogue (NOPAC) carried out in the department of information and library management at the University of Northumbria in Newcastle, UK over the academic year 1994/95. Data was collected by means of interviews with NOPAC users especially on use made of the NOPAC and on attitudes towards the NOPAC's interface. Discusses the views of users as they relate to: display features; mode of interaction; help/user assistance; extra features available; and usability. Lists important points which emerged from the survey concerning the NOPAC service

0.0039058835 = product of:
  0.01171765 = sum of:
    0.01171765 = product of:
      0.0234353 = sum of:
        0.0234353 = weight(_text_:of in 2770) [ClassicSimilarity], result of:
          0.0234353 = score(doc=2770,freq=16.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34207192 = fieldWeight in 2770, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2770)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

Librarians find themselves today in a lively period of the evolution of user interfaces to online information. Most of the newer interfaces incorporate graphics, colour and mouse-supported searching to make intiation for the novics user easier and all searching more productive. Describes the University of Delaware's development of DELCAT MacPAC, a HyperCard-based front-end to the university's OPAC, adapted from Cornell University's MacPAC. The focus is on Delaware's customisation of MacPAC for its environment, including the support of remote users, and the testing, use, and distribution of the product

0.0039058835 = product of:
  0.01171765 = sum of:
    0.01171765 = product of:
      0.0234353 = sum of:
        0.0234353 = weight(_text_:of in 2778) [ClassicSimilarity], result of:
          0.0234353 = score(doc=2778,freq=16.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34207192 = fieldWeight in 2778, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2778)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

Abstract

The very nature of traditional interfaces to databases tend to hide their information content and makes it very difficult for a user to build a conceptual model of their contents. Traditional libraries, however, are designed to make their contents and their arrangements clearly visible and capable of browsing. Describes a small demonstration system aimed at making the contents of an OPAC capable of being visualised by users and designed as part of the HYPERCATalog effort

Source

Technology and competence. Proc. of the 8th Nordic Conference on Information and Documentation, Helsingborg, 19.-21.5.1992. Ed. by Karin Adler et al

0.0039058835 = product of:
  0.01171765 = sum of:
    0.01171765 = product of:
      0.0234353 = sum of:
        0.0234353 = weight(_text_:of in 2781) [ClassicSimilarity], result of:
          0.0234353 = score(doc=2781,freq=16.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.34207192 = fieldWeight in 2781, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2781)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

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

0.003865822 = product of:
  0.011597466 = sum of:
    0.011597466 = product of:
      0.023194931 = sum of:
        0.023194931 = weight(_text_:of in 1936) [ClassicSimilarity], result of:
          0.023194931 = score(doc=1936,freq=12.0), product of:
            0.06850986 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.043811057 = queryNorm
            0.33856338 = fieldWeight in 1936, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.0625 = fieldNorm(doc=1936)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)

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