Search (15 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Marchionini, G."
  1. Marchionini, G.; Dwiggins, S.; Katz, A.; Lin, X.: Information seeking in full-text and-user-oriented search systems : the roles of domain and search expertise (1993) 0.01 
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    Source
    Library and information science research. 15(1993) no.1, S.35-69
  2. Marchionini, G.; Komlodi, A.: Design of interfaces for information seeking (1999) 0.01 
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    Source
    Annual review of information science and technology. 33(1998), S.89-130
  3. Marchionini, G.: Information seeking in full-text end-user-oriented search system : the roles of domain and search expertise (1993) 0.01 
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    Abstract
    Presents a study that identifies and examines the roles that information-seeking expertise and domain expertise play in information seeking in full text, and user search systems. This forms part of an investigation to characterise information seeking and to determine how it is affected by interactive electronic access to primary information. Distinguishes between the approaches of search experts and domain experts. Makes recommendations for systems design
    Source
    Library and information science research. 15(1993) no.1, S.35-69
  4. Marchionini, G.: Interfaces for end-user information seeking (1992) 0.01 
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    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
  5. Marchionini, G.: Information seeking in electronic environments (1995) 0.00 
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    COMPASS
    Information retrieval / Use of / On-line computers
    Footnote
    Rez. in: JASIS 47(1996) no.5, S.405-406 (J.R. Hill); Canadian journal of information and library science 20(1995) nos.3/4, S.53-55 (J. Beheshti); Library quarterly 66(1996) no.4, S.483-485 (C.C. Kuhlthau)
    Subject
    Information retrieval / Use of / On-line computers
  6. Ding, W.; Soergel, D.; Marchionini, G.: Performance of visual, verbal, and combined video surrogates (1999) 0.00 
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    Abstract
    This study investigates the information representation power of different modalities in the video data in order to collect empirical evidence for video surrogate creation and thus better support effective video browsing and information retrieval. Three types of video surrogates - keyframe, keyword/phrase, and combination of the two were created and compared under two user tasks-verbal comprehension and visual gisting in user performance and preference. Results and discussions follow
    Imprint
    Medford, NJ : Information Today
    Series
    Proceedings of the American Society for Information Science; vol.36
    Source
    Knowledge: creation, organization and use. Proceedings of the 62nd Annual Meeting of the American Society for Information Science, 31.10.-4.11.1999. Ed.: L. Woods
  7. Marchionini, G.; Xia, L.; Dwiggins, S.: Efforts of search and subject expertise on information seeking in a hypertext environment (1990) 0.00 
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    Abstract
    As part of ongoing investigation of information seeking behaviour of end users in electronic environments, a comparison was made of those users having expertise in a topic area and those with expertise in online searching. Computer scientists and online search specialists conducted assigned searches in a HyperCard database on the topic of hypertext. Both groups of experts were able to conduct successful searches and outperformed a novice control group. Search specialists took slightly less time tahn the domain experts, modified queries by adding terms found in the text, and tended to focus on query formulation. Domain experts focused on the text and used their domain knowledge for further question answering
    Imprint
    Medford, NJ : Learned Information Inc.
    Source
    ASIS'90: Information in the year 2000, from research to applications. Proc. of the 53rd Annual Meeting of the American Society for Information Science, Toronto, Canada, 4.-8.11.1990. Ed. by Diana Henderson
    Theme
    Information
  8. Marchionini, G.; Fox, E.A.: Progress toward Digital Libraries : augmentation through integration (1999) 0.00 
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    Source
    Information processing and management. 35(1999) no.3, S.219-225
  9. Marchionini, G.: Designing hypertexts : start with an index (1994) 0.00 
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    Imprint
    Medford, NJ : Learned information
  10. Marchionini, G.: Research and development in digital libraries (1998) 0.00 
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    Source
    Encyclopedia of library and information science. Vol.63, [=Suppl.26]
  11. Tse, T.; Vegh, S.; Marchionini, G.; Shneiderman, B.: ¬An exploratory study of video browsing user interface designs and research methodologies : effectiveness in information seeking tasks (1999) 0.00 
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    Abstract
    The purpose of this exploratory study is to develop research methods to compare the effectiveness of two video browsing interface designs, or surrogates-one static (storyboard) and one dynamic (slide show)-on two distinct information seeking tasks (gist determination and object recognition). Although video data is multimodal, potentially consisting of images, speech, sound, and text, the surrogates tested depend on image data only and use key frames or stills extracted from source video. A test system was developed to determine the effects of different key frame displays on user performance in specified information seeking tasks. The independent variables were interface display and task type. The dependent variables were task accuracy and subjective satisfaction. Covariates included spatial visual ability and time-to-completion. The study used a repeated block factorial 2x2 design; each of 20 participants interacted with all four interface-task combinations. No statistically significant results for task accuracy were found. Statistically significant differences were found, however, for user satisfaction with the display types: users assessed the static display to be "easier" to use than the dynamic display for both task types, even though there were no performance differences. This methodological approach provides a useful way to learn about the relationship between surrogate types and user tasks during video browsing
    Imprint
    Medford, NJ : Information Today
    Series
    Proceedings of the American Society for Information Science; vol.36
    Source
    Knowledge: creation, organization and use. Proceedings of the 62nd Annual Meeting of the American Society for Information Science, 31.10.-4.11.1999. Ed.: L. Woods
  12. Marchionini, G.; Meadow, C.T.; Dwiggins, S.; Lin, X.; Jiabin, W.; Yuan, W.: ¬A study of user interaction with information retrieval interfaces : progress report (1991) 0.00 
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    Abstract
    Reports progress and future plans for a project to study the interactions of users with information retrieval interfaces. Tests are run with professional data base searchers and with end users who are members of a profession but have little or no searching experience. Interfaces tested include a command language search system used to search DIALOG bibliographic data bases, a non-procedural system that produces DIALOG commands, and several full text systems, including one using hypertext. The intent is to determine which kinds of users perform best with each type of interface. The project is being conducted jointly bay the University of Toronto and the University of Maryland
    Source
    Canadian journal of information science. 16(1991) no.4, S.42-59
  13. Paez, L.B.; Silva-Fu, J.B.d.; Marchionini, G.: Disorientation in electronic environments : a study of hypertext and continuous zooming interfaces (1996) 0.00 
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    Imprint
    Medford, NJ : Learned Information
    Source
    Global complexity: information, chaos and control. Proceedings of the 59th Annual Meeting of the American Society for Information Science, ASIS'96, Baltimore, Maryland, 21-24 Oct 1996. Ed.: S. Hardin
  14. Ding, W.; Marchionini, G.: ¬A comparative study of Web search service performance (1996) 0.00 
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    Imprint
    Medford, NJ : Learned Information
    Source
    Global complexity: information, chaos and control. Proceedings of the 59th Annual Meeting of the American Society for Information Science, ASIS'96, Baltimore, Maryland, 21-24 Oct 1996. Ed.: S. Hardin
  15. Marchionini, G.; Liebscher, P.: Performance in electronic encyclopedias : implications for adaptive systems (1991) 0.00 
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    Imprint
    Medford : Learned Information Inc.

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