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White, R.W.; Marchionini, G.; Muresan, G.: Evaluating exploratory search systems : introduction to special topic issue of information processing and management (2008)
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Marchionini, G.; Shneiderman, B.: Finding facts vs. browsing knowledge in hypertext systems (1988)
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Marchionini, G.; Liebscher, P.: Performance in electronic encyclopedias : implications for adaptive systems (1991)
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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)
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Marchionini, G.; Komlodi, A.: Design of interfaces for information seeking (1999)
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Liebscher, P.; Marchionini, G.: Browse and analytical search strategies in a full-text CD-ROM encyclopedia (1988)
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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
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Marchionini, G.; Fox, E.A.: Progress toward Digital Libraries : augmentation through integration (1999)
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Marchionini, G.: Designing hypertexts : start with an index (1994)
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Marchionini, G.: ¬An invitation to browse : designing full-text systems for novice users (1987)
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Marchionini, G.: Research and development in digital libraries (1998)
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Komlodi, A.; Soergel, D.; Marchionini, G.: Search histories for user support in user interfaces (2006)
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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
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Marchionini, G.: Information seeking in full-text end-user-oriented search system : the roles of domain and search expertise (1993)
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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
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Marchionini, G.: Interfaces for end-user information seeking (1992)
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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)
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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
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Marchionini, G.: Co-evolution of user and organizational interfaces : a longitudinal case study of WWW dissemination of national statistics (2002)
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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.
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Marchionini, G.; Wildemuth, B.M.; Geisler, G.: ¬The Open Video Digital Library : a Möbius strip of research and practice (2006)
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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.
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Ding, W.; Soergel, D.; Marchionini, G.: Performance of visual, verbal, and combined video surrogates (1999)
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Paez, L.B.; Silva-Fu, J.B.d.; Marchionini, G.: Disorientation in electronic environments : a study of hypertext and continuous zooming interfaces (1996)
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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
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Marchionini, G.; Xia, L.; Dwiggins, S.: Efforts of search and subject expertise on information seeking in a hypertext environment (1990)
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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
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Ding, W.; Marchionini, G.: ¬A comparative study of Web search service performance (1996)
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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
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