Search (60 results, page 1 of 3)

0.08669235 = product of:
  0.1733847 = sum of:
    0.1733847 = sum of:
      0.0743701 = weight(_text_:online in 6418) [ClassicSimilarity], result of:
        0.0743701 = score(doc=6418,freq=2.0), product of:
          0.15842392 = queryWeight, product of:
            3.0349014 = idf(docFreq=5778, maxDocs=44218)
            0.05220068 = queryNorm
          0.46943733 = fieldWeight in 6418, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.0349014 = idf(docFreq=5778, maxDocs=44218)
            0.109375 = fieldNorm(doc=6418)
      0.099014595 = weight(_text_:22 in 6418) [ClassicSimilarity], result of:
        0.099014595 = score(doc=6418,freq=2.0), product of:
          0.18279788 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05220068 = queryNorm
          0.5416616 = fieldWeight in 6418, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.109375 = fieldNorm(doc=6418)
  0.5 = coord(1/2)

Source

Online. 22(1998) no.6, S.57-58

0.049538486 = product of:
  0.09907697 = sum of:
    0.09907697 = sum of:
      0.0424972 = weight(_text_:online in 3572) [ClassicSimilarity], result of:
        0.0424972 = score(doc=3572,freq=2.0), product of:
          0.15842392 = queryWeight, product of:
            3.0349014 = idf(docFreq=5778, maxDocs=44218)
            0.05220068 = queryNorm
          0.2682499 = fieldWeight in 3572, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.0349014 = idf(docFreq=5778, maxDocs=44218)
            0.0625 = fieldNorm(doc=3572)
      0.05657977 = weight(_text_:22 in 3572) [ClassicSimilarity], result of:
        0.05657977 = score(doc=3572,freq=2.0), product of:
          0.18279788 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.05220068 = queryNorm
          0.30952093 = fieldWeight in 3572, 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=3572)
  0.5 = coord(1/2)

Source

Online. 22(1998) no.3, S.24-26,28

0.024753649 = product of:
  0.049507298 = sum of:
    0.049507298 = product of:
      0.099014595 = sum of:
        0.099014595 = weight(_text_:22 in 5089) [ClassicSimilarity], result of:
          0.099014595 = score(doc=5089,freq=2.0), product of:
            0.18279788 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05220068 = queryNorm
            0.5416616 = fieldWeight in 5089, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=5089)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

22. 7.2006 18:43:54

0.024595601 = product of:
  0.049191203 = sum of:
    0.049191203 = product of:
      0.098382406 = sum of:
        0.098382406 = weight(_text_:online in 6742) [ClassicSimilarity], result of:
          0.098382406 = score(doc=6742,freq=14.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.62100726 = fieldWeight in 6742, product of:
              3.7416575 = tf(freq=14.0), with freq of:
                14.0 = termFreq=14.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6742)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Reports results of a study to examine the performance of online catalogue searches involving personal names and to recommend improvements to the basic system approach to soliciting user queries and searching for them. The research questions addressed in the study wre: how online systems can chose searching approaches on their own that are likely to produce useful retrieval; how online systems solicit queries from users; and how users respond to an experimental online catalogue that prompts them for the different elements of their personal name queries. Improvements include: the implementation of a new design for online catalogue searching that features search trees; new methods for soliciting user queries bearing personal names; and enlisting the participation of online catalogue users in the evaluation of system prompts, instructions, and messages that request input from them

0.0212486 = product of:
  0.0424972 = sum of:
    0.0424972 = product of:
      0.0849944 = sum of:
        0.0849944 = weight(_text_:online in 6891) [ClassicSimilarity], result of:
          0.0849944 = score(doc=6891,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.5364998 = fieldWeight in 6891, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.125 = fieldNorm(doc=6891)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.020787079 = product of:
  0.041574158 = sum of:
    0.041574158 = product of:
      0.083148316 = sum of:
        0.083148316 = weight(_text_:online in 4895) [ClassicSimilarity], result of:
          0.083148316 = score(doc=4895,freq=10.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.524847 = fieldWeight in 4895, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4895)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The study attempted to idendify how end-users modify their initial search strategies in the light of new information presented during their interaction with an online bibliographic information retrieval system in a real environment. This exploratory study was also conducted to determine the effectiveness of the changes, made by users during the online process, in retrieving relevant documents. Analysis of this data shows that all end-users modify their searches during the online process. Results indicate that certain changes were made more frequently than others. Changes affecting relevance and characteristics of end-users' online search behaviour were also identified

0.020787079 = product of:
  0.041574158 = sum of:
    0.041574158 = product of:
      0.083148316 = sum of:
        0.083148316 = weight(_text_:online in 7435) [ClassicSimilarity], result of:
          0.083148316 = score(doc=7435,freq=10.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.524847 = fieldWeight in 7435, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7435)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Describes the comparative approach to system evaluation used in this research project which delegated the administartion of an online retrieval test to an experimental online catalogue to produce data for evaluating the effectiveness of a new subject access design. Describes the methods enlisted to sort out problem test administration, e.g. to identify out-of-scope queries, incomplete system administration, and suspect post-search questionnaire responses. Covers how w the researchers handled problem search administrations and what actions they would use to reduce or eliminate the occurrence of such administrations in future online retrieval tests that delegate control of retrieval tests to online systems

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 347) [ClassicSimilarity], result of:
          0.0743701 = score(doc=347,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 347, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.109375 = fieldNorm(doc=347)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 3853) [ClassicSimilarity], result of:
          0.0743701 = score(doc=3853,freq=8.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 3853, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3853)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Considers 2 non-Boolean searching systems available on commercial online systems. QUESTQUORUM, based on coordination level searching, was introduced by ESA/IRS in Dec. 85. TARGET, which employs partial match probabilistic retrieval was introduced by DIALOG in Dec 93. 6 subject searches were carried out on databases available on both Dialog and ESA/IRS to compare TARGET and QUESTQUORUM with Boolean searching. Outlines the main advantages of these tools, and their disadvantages. Suggests when their use may be preferable

Source

Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 3869) [ClassicSimilarity], result of:
          0.0743701 = score(doc=3869,freq=8.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 3869, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3869)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Considers factors lowering both intersearcher and intrasearcher consistency in online searching. 32 searchers with different backgrounds first analyzed 12 search requests, and after 2 months 8 of the same search requests, and formulated query statements from them for a search. Intersearcher consistency was the results of more than one factor. There were more differences between searchers ion the selection of search terms than in the selection of search concepts. The most important factor lowering intrasearcher consistency was that the same searcher selected different search terms to describe the same search concepts on various occasions

Source

Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 3871) [ClassicSimilarity], result of:
          0.0743701 = score(doc=3871,freq=8.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 3871, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3871)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Examines the searching behaviour of Guardian journalists searching FT PROFILE online system. Using transactional log analysis compares the searching styles of journalists with those of Guardian librarians. In some respects end users conform to the picture that professionals have of them - they search with a very limited range of commands - but in other respects they confound that image - they are very quick and economical searchers. Their behaviour relates to their general information seeking behaviour, and their searching styles would be seen in this regard

Source

Online information 95: Proceedings of the 19th International online information meeting, London, 5-7 December 1995. Ed.: D.I. Raitt u. B. Jeapes

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 7107) [ClassicSimilarity], result of:
          0.0743701 = score(doc=7107,freq=2.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 7107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.109375 = fieldNorm(doc=7107)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

0.018592525 = product of:
  0.03718505 = sum of:
    0.03718505 = product of:
      0.0743701 = sum of:
        0.0743701 = weight(_text_:online in 623) [ClassicSimilarity], result of:
          0.0743701 = score(doc=623,freq=8.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.46943733 = fieldWeight in 623, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=623)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Reports results of research to examine users conducting their initial online search on a particular information problem. Findings from 3 separate studies of relevance judgements by 44 initial search users were examined, including 2 studies of 13 end users and a study of 18 user engaged in mediated online searches. Number of items was judged on the scale 'relevant', 'patially relevant' and 'not rlevant'. Results suggest that: a relationship exists between partially rlevant items retrieved anch changes in the users' information problem or question during an information seeking process; partial relevance judgements play an important role for users in the early stages of seeking information on a particular information problem; and 'highly' relevant items may or may not be the only items useful at the early stages of users' information seeking processes

Source

Online and CD-ROM review. 21(1997) no.5, S.271-280

0.017817494 = product of:
  0.035634987 = sum of:
    0.035634987 = product of:
      0.071269974 = sum of:
        0.071269974 = weight(_text_:online in 386) [ClassicSimilarity], result of:
          0.071269974 = score(doc=386,freq=10.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.4498688 = fieldWeight in 386, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.046875 = fieldNorm(doc=386)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Using subject headings for Online Retrieval is an indispensable tool for online system desingners who are developing new systems or refining exicting ones. The book describes subject analysis and subject searching in online catalogs, including the limitations of retrieval, and demonstrates how such limitations can be overcome through system design and programming. The book describes the Library of Congress Subject headings system and system characteristics, shows how information is stored in machine readable files, and offers examples of and recommendations for successful methods. Tables are included to support these recommendations, and diagrams, graphs, and bar charts are used to provide results of data analyses.

Theme

Verbale Doksprachen im Online-Retrieval

0.017681178 = product of:
  0.035362355 = sum of:
    0.035362355 = product of:
      0.07072471 = sum of:
        0.07072471 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
          0.07072471 = score(doc=3103,freq=2.0), product of:
            0.18279788 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05220068 = queryNorm
            0.38690117 = fieldWeight in 3103, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3103)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

27. 2.1999 20:55:22

0.017681178 = product of:
  0.035362355 = sum of:
    0.035362355 = product of:
      0.07072471 = sum of:
        0.07072471 = weight(_text_:22 in 3107) [ClassicSimilarity], result of:
          0.07072471 = score(doc=3107,freq=2.0), product of:
            0.18279788 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.05220068 = queryNorm
            0.38690117 = fieldWeight in 3107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.078125 = fieldNorm(doc=3107)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

27. 2.1999 20:59:22

0.0161016 = product of:
  0.0322032 = sum of:
    0.0322032 = product of:
      0.0644064 = sum of:
        0.0644064 = weight(_text_:online in 3872) [ClassicSimilarity], result of:
          0.0644064 = score(doc=3872,freq=6.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.4065447 = fieldWeight in 3872, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3872)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

Investigates search intermediary elicitations during mediated online searching. A study of 40 online reference interviews involving 1.557 search intermediary elicitation, found 15 different types of search intermediary elicitation to users. The elicitation purpose included search terms and strategies, database selection, relevance of retrieved items, users' knowledge and previous information seeking. Analysis of the patterns in the types and sequencing of elicitation showed significant strings of multiple elicitation regarding search terms and strategies, and relevance judgements. Discusses the implications of the findings for training search intermediaries and the design of interfaces eliciting information from end users

0.01502503 = product of:
  0.03005006 = sum of:
    0.03005006 = product of:
      0.06010012 = sum of:
        0.06010012 = weight(_text_:online in 3845) [ClassicSimilarity], result of:
          0.06010012 = score(doc=3845,freq=4.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.37936267 = fieldWeight in 3845, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=3845)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

2 studies were conducted to investigate the cognitive processes involved in online document-based information retrieval. These studies led to the development of 5 computerised models of online document retrieval. These models were incorporated into a design of an 'intelligent' document-based retrieval system. Following a discussion of this system, discusses the broader implications of the research for the design of information retrieval sysems

0.01502503 = product of:
  0.03005006 = sum of:
    0.03005006 = product of:
      0.06010012 = sum of:
        0.06010012 = weight(_text_:online in 4380) [ClassicSimilarity], result of:
          0.06010012 = score(doc=4380,freq=16.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.37936267 = fieldWeight in 4380, product of:
              4.0 = tf(freq=16.0), with freq of:
                16.0 = termFreq=16.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.03125 = fieldNorm(doc=4380)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

We return to arguments made 10 years ago that online catalogs are difficult to use because their design does not incorporate sufficient understanding of searching behavior. The earlier article examined studies of information retrieval system searching for their implications for online catalog design; this article examines the implications of card catalog design for online catalogs. With this analysis, we hope to contribute to a better understanding of user behavior and to lay to rest the card catalog design model for online catalogs. We discuss the problems with query matching systems, which were designed for skilled search intermediaries rather than end-users, and the knowledge and skills they require in the information-seeking process, illustrated with examples of searching card and online catalogs. Searching requires conceptual knowledge of the information retrieval process - translating an information need into a searchable query; semantic knowledge of how to implement a query in a given system - the how and when to use system features; and technical skills in executing the query - basic computing skills and the syntax of entering queries as specific search statements. In the short term, we can help make online catalogs easier to use through improved training and documentation that is based on information-seeking bahavior, with the caveat that good training is not a substitute for good system design. Our long term goal should be to design intuitive systems that require a minimum of instruction. Given the complexity of the information retrieval problem and the limited capabilities of today's systems, we are far from achieving that goal. If libraries are to provide primary information services for the networked world, they need to put research results on the information-seeking process into practice in designing the next generation of online public access information retrieval systems

0.01502503 = product of:
  0.03005006 = sum of:
    0.03005006 = product of:
      0.06010012 = sum of:
        0.06010012 = weight(_text_:online in 6978) [ClassicSimilarity], result of:
          0.06010012 = score(doc=6978,freq=4.0), product of:
            0.15842392 = queryWeight, product of:
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.05220068 = queryNorm
            0.37936267 = fieldWeight in 6978, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.0349014 = idf(docFreq=5778, maxDocs=44218)
              0.0625 = fieldNorm(doc=6978)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Abstract

The Getty Online Searching Project studied the end user searching behaviour of 27 humanities scholars over a 2 year period. A number of scholars anticipated that they were already familiar with a percentage of records their searches retrieved. High document familiarity can be a significant factor in searching: Draws implications regarding the impact of high document familiarity on relevance and information retrieval theory. Makes speculations regarding high document familiarity and Bradford's law