Search (27 results, page 1 of 2)

  • × author_ss:"Marchionini, G."
  • × type_ss:"a"
  1. Marchionini, G.: Designing hypertexts : start with an index (1994) 0.02 
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    Pages
    S.77-89
    Source
    Challenges in indexing electronic text and images. Ed.: R. Fidel et al
    Type
    a
  2. Komlodi, A.; Soergel, D.; Marchionini, G.: Search histories for user support in user interfaces (2006) 0.00 
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    Abstract
    The authors describe user interface tools based on search histories to support legal information seekers. The design of the tools was informed by the results of a user study (Komlodi, 2002a) that examined the use of human memory, external memory aids, and search histories in legal information seeking and derived interface design recommendations for information storage and retrieval systems. The data collected were analyzed to identify potential task areas where search histories can support information seeking and use. The results show that many information-seeking tasks can take advantage of automatically and manually recorded history information. These findings encouraged the design of user interface tools building on search history information: direct search history displays, history-enabled scratchpad facilities, and organized results collection tools.
    Date
    22. 7.2006 18:04:19
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.6, S.803-897
    Type
    a
  3. 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) 0.00 
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    Source
    Library and information science research. 15(1993) no.1, S.35-69
    Type
    a
  4. Marchionini, G.; Komlodi, A.: Design of interfaces for information seeking (1999) 0.00 
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    Source
    Annual review of information science and technology. 33(1998), S.89-130
    Type
    a
  5. Marchionini, G.; Shneiderman, B.: Finding facts vs. browsing knowledge in hypertext systems (1988) 0.00 
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    Source
    IEEE computer. 21(1988), S.70-80
    Type
    a
  6. 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
    Type
    a
  7. Marchionini, G.: ¬An invitation to browse : designing full-text systems for novice users (1987) 0.00 
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    Source
    Canadian journal of information science. 12(1987) nos.3/4, S.69-79
    Type
    a
  8. Marchionini, G.: Research and development in digital libraries (1998) 0.00 
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    Pages
    S.259-278
    Type
    a
  9. 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
    Type
    a
  10. Ding, W.; Marchionini, G.: ¬A comparative study of Web search service performance (1996) 0.00 
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    Abstract
    Investigates the current state of search services conducted by comparing 3 popular WWW based search services: InfoSeek, Lycos and OpenText. A taxonomy of service features was first created to do a descriptive comparison. A set of 5 questions were used to conduct searches with the 3 services. Each service offered some advantage for specific queries although Lycos and OpenText showed better results for the different precision metrics used in this limited study. There was a low result overlap among the 3 services. None of the services provide good output control for users. Makes recommendations for improvements in display, indexing and updating
    Footnote
    Vgl.: Nicholson, S.: Raising reliability of Web search tools ... In: JASIS 51(2000) no.8, S.724-729
    Pages
    S.136-142
    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
    Type
    a
  11. 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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    Abstract
    Explores the hypothesis that using a zooming graphical interface minimizes user disorientation when reading documents in an electronic environment. 36 graduate students at the University of Maryland at College Park, USA, were randomly assigned to read a hypertext document in either Pad++, a zooming graphical interface, or Mosaic, a jump-based interface. Questionnaires, observation, and taped interviews were used to compare and evalutae the use of the 2 interfaces with regard to learning time, performance and user satisfaction. Findings suggest as workstations become more powerful, a hybrid interface that adds continuous zooming to the existing mechanisms of scroll, pan and jump will emerge
    Pages
    S.58-66
    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
    Type
    a
  12. White, R.W.; Marchionini, G.; Muresan, G.: Evaluating exploratory search systems : introduction to special topic issue of information processing and management (2008) 0.00 
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    Source
    Information processing and management. 44(2008) no.2, S.433-436
    Type
    a
  13. 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
    Pages
    S.129-142
    Type
    a
  14. Liebscher, P.; Marchionini, G.: Browse and analytical search strategies in a full-text CD-ROM encyclopedia (1988) 0.00 
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    Abstract
    School library media specialists do not know which search strategies are most appropriate for the new full-text CD-ROM databases. Reports an experiment conducted to examine the effectiveness of 2 search strategies - analytical and browse strategies - for information seeking and use among high school students using an electronic full-text ancyclopedia for the search task. The experiment sought to determine whether: a short training session in a particular information strategy allows an information seeker to form an adequate mental model of the search task; and a simple 'browse' model compare favourably with a more 'analytical' model for information seeking in a full-text online environment. Both strategies proved effective for finding relevant information yet each demonstrated distinct advantages and disadvantages. Recommends that as new technologies are introduced, school library media specialists should conduct careful observations and controlled comparisons of how students use these systems
    Source
    School library media quarterly. 16(1988) no.4, S.223-233
    Type
    a
  15. Marchionini, G.: Co-evolution of user and organizational interfaces : a longitudinal case study of WWW dissemination of national statistics (2002) 0.00 
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    Abstract
    The data systems, policies and procedures, corporate culture, and public face of an agency or institution make up its organizational interface. This case study describes how user interfaces for the Bureau of Labor Statistics web site evolved over a 5-year period along with the [arger organizational interface and how this co-evolution has influenced the institution itself. Interviews with BLS staff and transaction log analysis are the foci in this analysis that also included user informationseeking studies and user interface prototyping and testing. The results are organized into a model of organizational interface change and related to the information life cycle.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.14, S.1192-1209
    Type
    a
  16. Marchionini, G.: Information-seeking strategies of novices using a full-text electronic encyclopedia (1989) 0.00 
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    Abstract
    An exploratory study was conducted of elementary school children searching a full-text electronic encyclopedia on CD-ROM. 28 third and forth graders and 24 sixth graders conducted 2 assigned searches, one open-ended, the other one closed, after 2 demonstration sessions. Keystrokes captured by the computer and observer notes were used to examine user information-seeking strategies from a mental model perspective. Older searchers were more successful in finding required information, and took less time than younger searchers. No differences in total number of moves were found. Analysis of search patterns showed that novices used a heuristic, highly interactive search strategy. Searchers used sentence and phrase queries, indicating unique mental models for this search system. Most searchers accepted system defaults and used the AND connective in formulating queries. Transition matrix analysis showed that younger searchers generally favoured query refining moves and older searchers fovoured examining title and text moves. Suggestions for system designers were made and future research questions were identified
    Source
    Journal of the American Society for Information Science. 40(1989) no.1, S.54-66
    Type
    a
  17. Marchionini, G.: Information seeking in full-text end-user-oriented search system : the roles of domain and search expertise (1993) 0.00 
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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
    Type
    a
  18. Shah, C.; Marchionini, G.: Awareness in collaborative information seeking (2010) 0.00 
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    Abstract
    Support for explicit collaboration in information-seeking activities is increasingly recognized as a desideratum for search systems. Several tools have emerged recently that help groups of people with the same information-seeking goals to work together. Many issues for these collaborative information-seeking (CIS) environments remain understudied. The authors identified awareness as one of these issues in CIS, and they presented a user study that involved 42 pairs of participants, who worked in collaboration over 2 sessions with 3 instances of the authors' CIS system for exploratory search. They showed that while having awareness of personal actions and history is important for exploratory search tasks spanning multiple sessions, support for group awareness is even more significant for effective collaboration. In addition, they showed that support for such group awareness can be provided without compromising usability or introducing additional load on the users.
    Footnote
    Erratum in: Journal of the American Society for Information Science and Technology, 61(2010) no.11, S.2377.
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.10, S.1970-1986
    Type
    a
  19. White, R.W.; Marchionini, G.: Examining the effectiveness of real-time query expansion (2007) 0.00 
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    Abstract
    Interactive query expansion (IQE) (c.f. [Efthimiadis, E. N. (1996). Query expansion. Annual Review of Information Systems and Technology, 31, 121-187]) is a potentially useful technique to help searchers formulate improved query statements, and ultimately retrieve better search results. However, IQE is seldom used in operational settings. Two possible explanations for this are that IQE is generally not integrated into searchers' established information-seeking behaviors (e.g., examining lists of documents), and it may not be offered at a time in the search when it is needed most (i.e., during the initial query formulation). These challenges can be addressed by coupling IQE more closely with familiar search activities, rather than as a separate functionality that searchers must learn. In this article we introduce and evaluate a variant of IQE known as Real-Time Query Expansion (RTQE). As a searcher enters their query in a text box at the interface, RTQE provides a list of suggested additional query terms, in effect offering query expansion options while the query is formulated. To investigate how the technique is used - and when it may be useful - we conducted a user study comparing three search interfaces: a baseline interface with no query expansion support; an interface that provides expansion options during query entry, and a third interface that provides options after queries have been submitted to a search system. The results show that offering RTQE leads to better quality initial queries, more engagement in the search, and an increase in the uptake of query expansion. However, the results also imply that care must be taken when implementing RTQE interactively. Our findings have broad implications for how IQE should be offered, and form part of our research on the development of techniques to support the increased use of query expansion.
    Source
    Information processing and management. 43(2007) no.3, S.685-704
    Type
    a
  20. Marchionini, G.; Wildemuth, B.M.; Geisler, G.: ¬The Open Video Digital Library : a Möbius strip of research and practice (2006) 0.00 
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    Abstract
    The Open Video Digital Library (OVDL) provides digital video files to the education and research community and is distinguished by an innovative user interface that offers multiple kinds of visual surrogates to people searching for video content. The OVDL is used by several thousand people around the world each month and part of this success is due to its user interface. This article examines the interplay between research and practice in the development of this particular digital library with an eye toward lessons for all digital libraries. We argue that theoretical and research goals blur into practical goals and practical goals raise new research questions as research and development progress-this process is akin to walking along a Möbius strip in which a locally two-sided surface is actually part of a globally one-sided world. We consider the gulf between the theories that guide current digital library research and current practice in operational digital libraries, provide a developmental history of the OVDL and the research frameworks that drove its development, illustrate how user studies informed its implementation and revision, and conclude with reflections and recommendations on the interplay between research and practice.
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.12, S.1629-1643
    Type
    a

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