Search (10 results, page 1 of 1)

  • × author_ss:"Wolfram, D."
  1. Wolfram, D.; Volz, A.; Dimitroff, A.: ¬The effect of linkage structure on retrieval performance in a hypertext-based bibliographic retrieval system (1996) 0.05 
    0.045020256 = product of:
  0.09004051 = sum of:
    0.067920536 = weight(_text_:26 in 6622) [ClassicSimilarity], result of:
      0.067920536 = score(doc=6622,freq=4.0), product of:
        0.17584132 = queryWeight, product of:
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.04979191 = queryNorm
        0.3862604 = fieldWeight in 6622, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6622)
    0.022119977 = product of:
      0.044239953 = sum of:
        0.044239953 = weight(_text_:access in 6622) [ClassicSimilarity], result of:
          0.044239953 = score(doc=6622,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.2621377 = fieldWeight in 6622, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6622)
      0.5 = coord(1/2)
  0.5 = coord(2/4)
    Abstract
    Investigates how linkage environments in a hypertext based bibliographic retrieval system affect retrieval performance for novice and experienced searchers, 2 systems, 1 with inter record linkages to authors and descriptors and 1 that also included title and abstract keywords, were tested. No significant differences in retrieval performance and system usage were found for most search tests. The enhanced system did provide better performance where title and abstract keywords provided the most direct access to relevant records. The findings have implications for the design of bilbiographic information retrieval systems using hypertext linkages
    Date
    26. 2.1997 20:26:38
  2. Wolfram, D.; Dimitroff, A.: Hypertext vs. Boolean-based searching in a bibliographic database environment : a direct comparison of searcher performance (1998) 0.02 
    0.02058303 = product of:
  0.08233212 = sum of:
    0.08233212 = weight(_text_:26 in 6436) [ClassicSimilarity], result of:
      0.08233212 = score(doc=6436,freq=2.0), product of:
        0.17584132 = queryWeight, product of:
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.04979191 = queryNorm
        0.4682183 = fieldWeight in 6436, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.09375 = fieldNorm(doc=6436)
  0.25 = coord(1/4)
    Date
    11. 8.2001 16:18:26
  3. Zhang, J.; Chen, Y.; Zhao, Y.; Wolfram, D.; Ma, F.: Public health and social media : a study of Zika virus-related posts on Yahoo! Answers (2020) 0.01 
    0.008576263 = product of:
  0.03430505 = sum of:
    0.03430505 = weight(_text_:26 in 5672) [ClassicSimilarity], result of:
      0.03430505 = score(doc=5672,freq=2.0), product of:
        0.17584132 = queryWeight, product of:
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.04979191 = queryNorm
        0.19509095 = fieldWeight in 5672, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.5315237 = idf(docFreq=3516, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5672)
  0.25 = coord(1/4)
    Date
    31. 1.2020 13:26:36
  4. Dimitroff, A.; Wolfram, D.: Searcher response in a hypertext-based bibliographic information retrieval system (1995) 0.01 
    0.006746116 = product of:
  0.026984464 = sum of:
    0.026984464 = product of:
      0.05396893 = sum of:
        0.05396893 = weight(_text_:22 in 187) [ClassicSimilarity], result of:
          0.05396893 = score(doc=187,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.30952093 = fieldWeight in 187, 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=187)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Journal of the American Society for Information Science. 46(1995) no.1, S.22-29
  5. Wittig, C.; Wolfram, D.: ¬A survey of networking education in North American library schools (1994) 0.01 
    0.006319993 = product of:
  0.025279973 = sum of:
    0.025279973 = product of:
      0.050559945 = sum of:
        0.050559945 = weight(_text_:access in 750) [ClassicSimilarity], result of:
          0.050559945 = score(doc=750,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.29958594 = fieldWeight in 750, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0625 = fieldNorm(doc=750)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    Reports results of a survey of US library schools to investigate the adoption, impact, and role of networking concepts and resources, such as the Internet, in the library and information science curriculum. Findings indicate that, to a large degree, educators have kept up with recent trends and tools in networking in a variety of courses. There was overwhelming consensus on the importance of networked information resources and access tools but less agreement on their places in the library and information science curriculum
  6. Ajiferuke, I.; Lu, K.; Wolfram, D.: ¬A comparison of citer and citation-based measure outcomes for multiple disciplines (2010) 0.01 
    0.005059587 = product of:
  0.020238347 = sum of:
    0.020238347 = product of:
      0.040476695 = sum of:
        0.040476695 = weight(_text_:22 in 4000) [ClassicSimilarity], result of:
          0.040476695 = score(doc=4000,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.23214069 = fieldWeight in 4000, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=4000)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Date
    28. 9.2010 12:54:22
  7. Castanha, R.C.G.; Wolfram, D.: ¬The domain of knowledge organization : a bibliometric analysis of prolific authors and their intellectual space (2018) 0.00 
    0.0042163227 = product of:
  0.01686529 = sum of:
    0.01686529 = product of:
      0.03373058 = sum of:
        0.03373058 = weight(_text_:22 in 4150) [ClassicSimilarity], result of:
          0.03373058 = score(doc=4150,freq=2.0), product of:
            0.17436278 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04979191 = queryNorm
            0.19345059 = fieldWeight in 4150, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4150)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Source
    Knowledge organization. 45(2018) no.1, S.13-22
  8. Wolfram, D.; Xie, H.I.: Traditional IR for web users : a context for general audience digital libraries (2002) 0.00 
    0.0039499956 = product of:
  0.015799982 = sum of:
    0.015799982 = product of:
      0.031599965 = sum of:
        0.031599965 = weight(_text_:access in 2589) [ClassicSimilarity], result of:
          0.031599965 = score(doc=2589,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.18724121 = fieldWeight in 2589, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2589)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    The emergence of general audience digital libraries (GADLs) defines a context that represents a hybrid of both "traditional" IR, using primarily bibliographic resources provided by database vendors, and "popular" IR, exemplified by public search systems available on the World Wide Web. Findings of a study investigating end-user searching and response to a GADL are reported. Data collected from a Web-based end-user survey and data logs of resource usage for a Web-based GADL were analyzed for user characteristics, patterns of access and use, and user feedback. Cross-tabulations using respondent demographics revealed several key differences in how the system was used and valued by users of different age groups. Older users valued the service more than younger users and engaged in different searching and viewing behaviors. The GADL more closely resembles traditional retrieval systems in terms of content and purpose of use, but is more similar to popular IR systems in terms of user behavior and accessibility. A model that defines the dual context of the GADL environment is derived from the data analysis and existing IR models in general and other specific contexts. The authors demonstrate the distinguishing characteristics of this IR context, and discuss implications for the development and evaluation of future GADLs to accommodate a variety of user needs and expectations.
  9. Xie, H.I.; Wolfram, D.: State digital library usability contributing organizational factors (2002) 0.00 
    0.0039499956 = product of:
  0.015799982 = sum of:
    0.015799982 = product of:
      0.031599965 = sum of:
        0.031599965 = weight(_text_:access in 5221) [ClassicSimilarity], result of:
          0.031599965 = score(doc=5221,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.18724121 = fieldWeight in 5221, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5221)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    In this issue Xie and Wolfram study the Wisconsin state digital library BadgerLink to determine the organizational factors that lead to different use requirements and the degree to which these are met, as well as impact on physical libraries. To this end, usage data from EBSCOhost and ProQuest logs for BadgerLink were analyzed, 313 Wisconsin libraries of all types were surveyed (76% response rate), and analyzed along with 81 responses to a voluntary web survey of end users. Heaviest users were K-12 schools and institutions of higher education. Heaviest use sites were the two largest state universities and the state's largest public library. Small libraries were infrequent users. Web survey respondents were mature working professionals. Sixty percent searched for specific information, but 46% reported browsing in subject areas. Libraries with dedicated Internet access reported more frequent usage than those with dial-up connection. Those who accessed from libraries reported more frequent use than those at work or at home. Libraries that trained end users reported more use, but the majority of the web survey respondents reported themselves as self-taught. Logs confirm reported subject interests. Three surrogates were requested for every full text document but full text availability is reported as the reason for use by 30% of users. Availability has led to the cancellation of subscriptions in many libraries that are important promoters of the service. A model will need to include interactions based upon the influence of each involved participant on the others. It will also need to include the extension of the activities of one participant to other participant organizations and the communication among these organizations.
  10. Olson, H.A.; Wolfram, D.: Syntagmatic relationships and indexing consistency on a larger scale (2008) 0.00 
    0.0039499956 = product of:
  0.015799982 = sum of:
    0.015799982 = product of:
      0.031599965 = sum of:
        0.031599965 = weight(_text_:access in 2214) [ClassicSimilarity], result of:
          0.031599965 = score(doc=2214,freq=2.0), product of:
            0.16876608 = queryWeight, product of:
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.04979191 = queryNorm
            0.18724121 = fieldWeight in 2214, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.389428 = idf(docFreq=4053, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2214)
      0.5 = coord(1/2)
  0.25 = coord(1/4)
    Abstract
    Purpose - The purpose of this article is to examine interindexer consistency on a larger scale than other studies have done to determine if group consensus is reached by larger numbers of indexers and what, if any, relationships emerge between assigned terms. Design/methodology/approach - In total, 64 MLIS students were recruited to assign up to five terms to a document. The authors applied basic data modeling and the exploratory statistical techniques of multi-dimensional scaling (MDS) and hierarchical cluster analysis to determine whether relationships exist in indexing consistency and the coocurrence of assigned terms. Findings - Consistency in the assignment of indexing terms to a document follows an inverse shape, although it is not strictly power law-based unlike many other social phenomena. The exploratory techniques revealed that groups of terms clustered together. The resulting term cooccurrence relationships were largely syntagmatic. Research limitations/implications - The results are based on the indexing of one article by non-expert indexers and are, thus, not generalizable. Based on the study findings, along with the growing popularity of folksonomies and the apparent authority of communally developed information resources, communally developed indexes based on group consensus may have merit. Originality/value - Consistency in the assignment of indexing terms has been studied primarily on a small scale. Few studies have examined indexing on a larger scale with more than a handful of indexers. Recognition of the differences in indexing assignment has implications for the development of public information systems, especially those that do not use a controlled vocabulary and those tagged by end-users. In such cases, multiple access points that accommodate the different ways that users interpret content are needed so that searchers may be guided to relevant content despite using different terminology.

Authors

Years

Themes