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  • × author_ss:"Wolfram, D."
  1. Zhang, J.; Wolfram, D.: Visualization of term discrimination analysis (2001) 0.02 
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    Abstract
    Zang and Wolfram compute the discrimination value for terms as the difference between the centroid value of all terms in the corpus and that value without the term in question, and suggest selection be made by comparing density changes with a visualization tool. The Distance Angle Retrieval Environment (DARE) visually projects a document or term space by presenting distance similarity on the X axis and angular similarity on the Y axis. Thus a document icon appearing close to the X axis would be relevant to reference points in terms of a distance similarity measure, while those close to the Y axis are relevant to reference points in terms of an angle based measure. Using 450 Associated Press news reports indexed by 44 distinct terms, the removal of the term ``Yeltsin'' causes the cluster to fall on the Y axis indicating a good discriminator. For an angular measure, cosine say, movement along the X axis to the left will signal good discrimination, as movement to the right will signal poor discrimination. A term density space could also be used. Most terms are shown to be indifferent discriminators. Different measures result in different choices as good and poor discriminators, as does the use of a term space rather than a document space. The visualization approach is clearly feasible, and provides some additional insights not found in the computation of a discrimination value.
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.8, S.615-627
  2. 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) 0.02 
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    Source
    Journal of the Association for Information Science and Technology. 71(2020) no.3, S.282-299
  3. Zhang, J.; Wolfram, D.; Wang, P.; Hong, Y.; Gillis, R.: Visualization of health-subject analysis based on query term co-occurrences (2008) 0.01 
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    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.12, S.1933-1947
  4. Wolfram, D.; Xie, H.I.: Traditional IR for web users : a context for general audience digital libraries (2002) 0.01 
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    Source
    Information processing and management. 38(2002) no.5, S.627-648
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  5. Dimitroff, A.; Wolfram, D.: Searcher response in a hypertext-based bibliographic information retrieval system (1995) 0.01 
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    Source
    Journal of the American Society for Information Science. 46(1995) no.1, S.22-29
  6. Ajiferuke, I.; Lu, K.; Wolfram, D.: ¬A comparison of citer and citation-based measure outcomes for multiple disciplines (2010) 0.01 
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    Date
    28. 9.2010 12:54:22
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.10, S.2086-2096
  7. Castanha, R.C.G.; Wolfram, D.: ¬The domain of knowledge organization : a bibliometric analysis of prolific authors and their intellectual space (2018) 0.01 
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    Source
    Knowledge organization. 45(2018) no.1, S.13-22
  8. Wolfram, D.; Dimitroff, A.: Hypertext vs. Boolean-based searching in a bibliographic database environment : a direct comparison of searcher performance (1998) 0.00 
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    Source
    Information processing and management. 34(1998) no.6, S.669-679
  9. Wolfram, D.; Spink, A.; Jansen, B.J.; Saracevic, T.: Vox populi : the public searching of the Web (2001) 0.00 
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    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.12, S.1073-1074
  10. Wolfram, D.: Applied informetrics for information retrieval research (2003) 0.00 
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    Pages
    232 S
  11. Wolfram, D.: ¬The symbiotic relationship between information retrieval and informetrics (2015) 0.00 
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    Scientometrics. 102(2015) no.3, S.2201-2214
  12. Minitroff, A.; Wolfram, D.: Design issues in a hypertext-based information system for bibliographic retrieval (1993) 0.00 
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    Pages
    S.191-198
    Source
    Integrating technologies - converging professions: proceedings of the 56th Annual Meeting of the American Society for Information Science, Columbus, OH, 24-28 October 1993. Ed.: S. Bonzi
  13. Wittig, C.; Wolfram, D.: ¬A survey of networking education in North American library schools (1994) 0.00 
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    Library trends. 42(1994) no.4, S.626-637
  14. Park, H.; You, S.; Wolfram, D.: Informal data citation for data sharing and reuse is more common than formal data citation in biomedical fields (2018) 0.00 
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    Journal of the Association for Information Science and Technology. 69(2018) no.11, S.1346-1354
  15. Wolfram, D.; Volz, A.; Dimitroff, A.: ¬The effect of linkage structure on retrieval performance in a hypertext-based bibliographic retrieval system (1996) 0.00 
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    Information processing and management. 32(1996) no.5, S.529-541
  16. Wolfram, D.: Inter-record linkage structure in a hypertext bibliographic retrieval system (1996) 0.00 
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    Journal of the American Society for Information Science. 47(1996) no.10, S.765-774
  17. Wolfram, D.; Dimitroff, A.: Preliminary findings on searcher performance and perceptions of performance in a hypertext bibliographic retrieval system (1997) 0.00 
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    Journal of the American Society for Information Science. 48(1997) no.12, S.1142-1145
  18. Wolfram, D.: Search characteristics in different types of Web-based IR environments : are they the same? (2008) 0.00 
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    Information processing and management. 44(2008) no.3, S.1279-1292
  19. Dimitroff, A.; Wolfram, D.; Volz, A.: Affective response and retrieval performance : analysis of contributing factors (1996) 0.00 
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    Library and information science research. 18(1996) no.2, S.121-132
  20. Ross, N.C.M.; Wolfram, D.: End user searching on the Internet : an analysis of term pair topics submitted to the Excite search engine (2000) 0.00 
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    Journal of the American Society for Information Science. 51(2000) no.10, S.949-958

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