Literatur zur Informationserschließung

Diese Datenbank enthält über 40.000 Dokumente zu Themen aus den Bereichen Formalerschließung – Inhaltserschließung – Information Retrieval.

© 2015 W. Gödert, TH Köln, Institut für Informationswissenschaft / Powered by litecat, BIS Oldenburg (Stand: 28. April 2022)

Suchergebnisse

• 1
  Modjeska, D. ; Chignell, M.: Individual differences in exploration using desktop VR.
  In: Journal of the American Society for Information Science and technology. 54(2003) no.3, S.216-228.
  
  Abstract: Modjeska and Chignell attempt to determine whether virtual reality desk top environments have adverse effects on people with low spatial ability and difficulty in learning information structures. Both three dimensional visualization and representation by a series of 2 dimensional birds-eye snapshots were tested using the CityScape algorithm and VRML files viewed with a CosmoPlayer browser plug-in on twenty student subjects with web browsing experience. Subjects were divided by their scores on the Minnesota Paper Form Board test for spatial ability, the number of trials they attempted, their score on a local structure test, and their self reported sense of presence, ease of use, efficiency, and enjoyment. Navigational logs provided distance traveled as a percent of virtual world radius, average circle of proximity to target, and number of exits from the correct zone of proximity. Presence, ease of use, and efficiency correlate with enjoyment, and the objective measures correlate with each other but not the subjective measures. Perceived efficiency correlated with number of errors. A factor analysis produced an objective measure factor which was affected by both level of spatial ability and by world design, and a subjective measure factor which was not so affected. Structural learning ability, as measured by ability to retain a hierarchical information structure after browsing it, significantly effected performance but no performance advantage could be shown for either visualization scheme.
  
  
  
• 2
  Zhang, X. ; Chignell, M.: Assessment of the effects of user characteristics on mental models of information retrieval systems.
  In: Journal of the American Society for Information Science and technology. 52(2001) no.6, S.445-459.
  
  Abstract: This article reports the results of a study that investigated effects of four user characteristics on users' mental models of information retrieval systems: educational and professional status, first language, academic background, and computer experience. The repertory grid technique was used in the study. Using this method, important components of information retrieval systems were represented by nine concepts, based on four IR experts' judgments. Users' mental models were represented by factor scores that were derived from users' matrices of concept ratings on different attributes of the concepts. The study found that educational and professional status, academic background, and computer experience had significant effects in differentiating users on their factor scores. First language had a borderline effect, but the effect was not significant enough at a = 0.05 level. Specific different views regarding IR systems among different groups of users are described and discussed. Implications of the study for information science and IR system designs are suggested
  
  Themenfeld: Benutzerstudien
  
  
• 3
  Golovchinsky, G. ; Chignell, M.H.: ¬The newspaper as an information exploration metaphor.
  In: Information processing and management. 33(1997) no.5, S.663-683.
  
  Abstract: Examines the implementation of the newspaper metaphor in an information exploration interface. The newspaper metaphor is an appropriate interface papradigm for large-scale full-text databases. This metaphor is appropriate for large automatically generated hypertexts, independent of the nature of their content. Describes VOIR, a softwre prototype that is used as an electronic newspaper workbench. The program constructs newspaper pages interactively, and allows user to specify their information seeking intent in a variety of ways, including graphical Boolean queries, hypertext links, and typed-in queries. Reports some empirical evidence that indicates that users perform better when they are shown more articles simultaneously. These results suggest that the newspaper metaphor may be an effective organizing principle for a class of information exploration tasks. Discusses some implications for hypertext and information retrieval in general
  
  Anmerkung: Contribution to a special issue devoted to electronic newspapers
  
  Themenfeld: Hypertext
  
  
• 4
  Golovchinsky, G. ; Chignell, M. ; Charoenkitkarn, N.: Formal experiments in casual attire : case studies in information exploration.
  In: New review of hypermedia and multimedia. 1997, no.3, S.123-157.
  
  Abstract: Addresses the issue of how research methodology can be developed for the specific needs of research into information exploration behaviour, based on a 4 year programme of research on individual strategies in information exploration. Proposes a meta-experimental framework where research is carried out through a dynamic interaction between what and why questions, and between confirmatory and exploratory analyses. This approach preserves many of the advantages of formal experimentation, while permitting a more holistic examination of phenomena that is characteristic of ethnography. Illustrates the application of the meta-theoretical framework in 3 case studies that examined new information exploration functionalities and interfaces and their relationship to expertise and exploration strategy
  
  
  
• 5
  Charoenkitkarn, N. ; Chignell, M.H. ; Golovchinsky, G.: Is recall relevant? : An analysis how user interface conditions affect strategies and performance in large scale text retrieval.
  In: The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman. Gaithersburgh, MD : National Institute of Standards and Technology, 1996. S.211-231.
  (NIST special publication; 500-236)
  
  Objekt: TREC
  
  
• 6
  Waterworth, J.A. ; Chignell, M.H.: ¬A model for information exploration.
  In: Hypermedia. 3(1991) no.1, S.35-58.
  
  Abstract: Presents a 3 dimensional model of information exploration. An attempt is made to clarify the respective roles of the human and the system in browsing and information retrieval, and to characterise alternative interaction styles to maximise retrieval effectiveness. Illustrates the applicability of the model of exploration by describing 8 paradigmatic cases of information exploration that represent different vertices of the model. Describes initial experiment that attempted to assess the pragmatic impact of various combinations of exploration features. Discusses methods for integrating hypermedia and information retrieval into general information exploration systems and discusses some of the processes that people use in information exploration. Argues for the development of hybrid information systems combining exploration features in the most appropriate way according to the task needs of users
  
  Themenfeld: Hypertext
  
  
• 7
  Waterworth, J.A. ; Chignell, M.H.: ¬A manifesto for hypermedia usability research.
  In: Hypermedia. 1(1989) H.3, S.205-234.
  
  Abstract: Discusses key aspects of hypermedia usability in the light of the difficulties, and similaries, between the design of hypermedia applications and that of more convential user interfaces. Focuses on the role of analogy and of dynamism in hypermedia interface design, with particular emphasis on the advanteges and pitfalls of using metaphor. The concluding section summaries possible future hypermedia usability research.
  
  Themenfeld: Hypertext
  
  
• 8
  Borgman, C.L. ; Chignell, M.H. ; Valdez, F.: Designing an information retrieval interface based on children's categorization of knowledge : a pilot study.
  In: ASIS'89. Managing information and technology. Proceedings of the 52nd annual meeting of the American Society for Information Science, Washington, D.C., 30.10.-2.11.1989. Vol. 26. Ed. by J. Katzer and G.B. Newby. Medford, New Jersey : Learned Information, 1989. S.81-95.
  
  Abstract: The study assessed the ability of children to categorise concepts that will be used to organise an information retrieval interface. The work was done of Project SEED (Science for Early Educational Development), a project to develop hands-on science programmes for elementary schools. Aims to tailor an interface to the particular skills of children in organising science knowledge. The results are promising for the design of IR interfaces based on children's abilities to manipulate information.
  
  Themenfeld: OPAC ; Suchoberflächen