Search (259 results, page 2 of 13)

  • × theme_ss:"Benutzerstudien"
  • × year_i:[1990 TO 2000}
  1. Perzylo, L.; Oliver, R.: ¬An investigation of children's use of a multimedia CD-ROM product for information retrieval (1992) 0.00 
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  2. Kilgour, F.G.: Effectiveness of surname-title-words searches by scholars (1995) 0.00 
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    Abstract
    This article reprots the findings of an experiment employing a simulated scholarly use of an OPAC to determine the frequency of one-screen displays when a scholar searches for a known-item with so-called 'keywords' in an implied boolean system. The experiment revealed that a 'keyword' search formula comprising surname plus first and last title words produced a single screen 92.8% of the time, thereby reducing the failure of traditional title searching to produce single screens by nearly one half; such a formula also enables a scholar to search successfully with abbreviated, unsearchable bibliographic citations. Additional research should be carried out, for if it is further demonstrated that replacing traditional bibliographic catalog entries with transcribed title pages provides an improved known-item OPAC, users would benefit and libraries would enjoy huge savings
    Type
    a
  3. Collins, K.: Providing subject access to images : a study of user queries (1998) 0.00 
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  4. Wang, P.; Soergel, D.: Beyond topical relevance : document selection behaviour of real users of IR systems (1993) 0.00 
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    Abstract
    Reports on part of a study of real users' behaviour in selecting documents from a list of citations resulting from a search of an information retrieval system. Document selection involves value judgements and decision making. Understanding how users evaluate documents and make decisions provides a basis for designing intelligent information retrieval system that can do a better job of predicting usefulness
    Type
    a
  5. Yu, L.; O'Brien, A.: ¬A practical typology of adult fiction borrowers based on their reading habits (1999) 0.00 
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    Abstract
    Reports results of a study which applied a typological procedure, developed by Lazairsfeld from the social sciences, to a set of qualitative data on fiction reading habits for the purpose of forming a practical typology of fiction borrowers. The data was collected from a sample of 300 readers in 2 medium sized UK public libraries over a 2 month period. The procedure, using an inductive research approach, first mapped readers along 6 dimensions of reading habits which emerged from the data frequencies of borrowing, the numbers of authors currently read, the literary/recreational orientation of reading, searching approaches usually applied, sureness (confidence) in book selection and then proceeded to reduce the number of combinations formed by these dimensions, based on their relationships. A typology of 7 types of fiction borrowers was devised: readers of particularism; readers of frequent literary pluralism; readers of infrequent literary pluralism; readers of frequent recreational pluralism; readers of infrequent recreational pluralism; readers of frequent universalism; and readers of infrequent universalism
    Type
    a
  6. Marcella, R.; Baxter, G.: ¬The information needs and the information seeking behaviour of a national sample of the population in the United Kingdom, with special reference to needs related to citizenship (1999) 0.00 
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    Abstract
    This paper reports the results of a survey of information needs and information seeking behaviour of a national sample of the UK population. The project was funded by the BLR&IC and comprised a survey by questionnaire covering all regions of the United Kingdom. 1.294 responses were received giving a valid and demographically respresentative response rate of 45,7%. Major findings include: that the majority of respondents had sought information in the past (59,4%) and that an even greater number predicted a future need for information (78,4%). Over three quarters of respondents said that they would use public libraries and between half and three quarters would approach CABx, post offices, government departments or family and friends. Face to face communicationss and reading a book were the most popular means of accessing information but a wide variety of other preferred options were cited. Only a small proportion expressed a preference for using a computer to seek information and there was a clear emphasis on public libraries as an appropriate location for accessing computerised information. A highly significant majority (79,2%) believed that access to information was very important for exercising their rights as citizens. Many significant variables, in terms of age, gender, status and region were found. In particular it was felt significant that young people were less sure of the importance of being able to access information
    Type
    a
  7. Marcella, R.; Baxter, G.: ¬A national survey of the citizenship information needs of the general public (1999) 0.00 
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    Abstract
    This paper reports the results of a survey of information needs and information seeking behaviour of a national sample of the UK population. The survey was the first stage of the Citizenship Information project, funded by the British Library Research and Innovation Centre. In total, 1294 responses were received giving a valid and demographically representative response rate of 45.7 per cent. Major findings include: that the majority of respondents had sought information in the past (59.4 per cent) and that an even greater number predicted a future need for information (78.4 per cent). Over three quarters of respondents said that they would use public libraries and between half and three quarters would approach Citizens Advice Bureaux, Post Offices, Government departments or family and friends. Face-to-face communications and reading a book were the most popular means of accessing information, but a wide variety of other preferred options were cited. Only a small proportion expressed a preference for using a computer to seek information, and there was a clear emphasis on public libraries as an appropriate location for accessing electronic information. A highly significant majority (79.2 per cent) believed that access to information was very important for exercising their rights as a citizen.
    Type
    a
  8. Garland, K.: ¬The information search process : a study of elements associated with meaningful research tasks (1995) 0.00 
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    Abstract
    I(nvestigates the constituents of a good research task, requiring students to construct meaning from a variety of resources. The study involved collaboration between a high school media specialist, 7 teachers, and a university faculty member in Michigan, USA. 6 research projects involving 387 students of all ability levels were observed to identify elements associated with meaningsful research. Data were collected from a questionnaire completed by all students and student and teacher interviews. elements found to be related to satisfaction with the research process and to satisfaction with achievement were: student choice of topic, group work, course related topics, clarity of goals and means of evaluation, and process instruction
    Type
    a
  9. Solomon, P.: Children, technology, and instruction : a case study of elementary school children using an online public access catalog (OPAC) (1994) 0.00 
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    Abstract
    Reports on a study at an elementary school in Washington, DC examining pupils' use of an OPAC. Presents this within the overall instructional environment of the school in order to open a window on the broader interaction of children, technology, curriculum, instruction and learning. Explains the methodology used in the study, the findings of the study, and notes a number of conclusions. Focuses in particular on the patterns of success and failure of children's use of the OPAC, their search strategies and the nature of their interaction with the OPAC
    Type
    a
  10. Read, J.: 'What do you want?' : a question academic libraries should be asking their users (1997) 0.00 
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    Abstract
    Reports a strategy adopted at Reading University Library in the UK, using Libra software and methodology developed by Priority Search Ltd. in conjunction with the University of London Library, to determine a way of adjusting the library opening hours to satisfy the needs of the greatest number of users. Describes the survey methodology and administration, discusses survey findings, offers tips for librarians in dealing with users, and considers the creative nature of such a survey
    Type
    a
  11. Kolmayer, E.: Bases de données grand public et organisation des connaissances (1992) 0.00 
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    Abstract
    Difficulties in accessing databases are linked to the (mostly different) organization of knowledge in a consulted field. These difficulties pose the problem of how to assist a user in his search
    Type
    a
  12. Jörgensen, C.; Liddy, E.D.: Information access or information anxiety? : an explanatory evaluation of book index features (1996) 0.00 
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    Abstract
    The authors conducted a controlled user study in both print and electronic environments and present here a subset of results from index use in the print format
    Type
    a
  13. Sullenger, P.: ¬A serials transaction log analysis (1997) 0.00 
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    Abstract
    A transaction log analysis of searches for serials looks at how users go about their searching (by title, subject, or keyword) and what problems they encounter, and then examines the results of those searches. Explores ways in which serials records could be improved to enhance retrieval
    Type
    a
  14. Hsieh, Y.-s.: ¬A study on the users' perception to the body language of reference librarians (1997) 0.00 
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    Abstract
    Part 2 of an article reporting results of a questionnaire survey of library users' perceptions of reference librarians' body language aims and its influence on the users' satisfaction of the reference interviews
    Type
    a
  15. Kantor, P.B.; Nordlie, R.: Models of the behavior of people searching the Internet : a Petri net approach (1999) 0.00 
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    Abstract
    Previous models of searching behavior have taken as their foundation the Markov model of random processes. In this model, the next action that a user takes is determined by a probabilistic rule which is conditioned by the most recent experiences of the user. This model, which has achieved very limited success in describing real data, is at odds with the evidence of introspection in a crucial way. Introspection reveals that when we search we are, more or less, in a state of expectancy, which can be satisfied in a number of ways. In addition, the state can be modified by the accumulated evidence of our searches. The Markov model approach can not readily accommodate such persistence of intention and behavior. The Petri Net model, which has been developed to analyze the interdependencies among events in a communications network, can be adapted to this situation. In this adaptation, the so-called "transitions" of the Petri Net occur only when their necessary pre-conditions have been met. We are able to show that various key abstractions of information finding, such as "document relevance", "a desired number of relevant documents", "discouragement", "exhaustion" and "satisfaction" can all be modeled using the Petri Net framework. Further, we show that this model leads naturally to a new approach to the collection of user data, and to the analysis of transaction logs, by providing a far richer description of the user's present state, without inducing a combinatorial explosion
    Type
    a
  16. Hunter, R.N.: Successes and failures of patrons searching the online catalog at a large academic library : a transaction log analysis (1991) 0.00 
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    Abstract
    This article reports on a transaction log study of the BIS online catalog at North Caroline State University. Transaction logs were used to gather data on failure rates, usage patterns, and causes of problems. The result show that 54 percent of the searches analyzed failed. Subject searching was the most often used but least successful search. Problems experienced by patrons searching BIS were often due to a misunderstanding of how to operate the system, typographical errors, and the use of uncontrolled vocabulary. As in earlier studies, transaction logs analysis proved to be a fruitful and practical methodology for studying users' searching behaviour in an online catalog.
    Type
    a
  17. 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
    Type
    a
  18. Hancock-Beaulieu, M.: ¬A comparative transaction log analysis of browsing and search formulation in online catalogues (1993) 0.00 
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    Abstract
    OLIVE, a transaction logging facility enhanced with online questionnaires, was used to collect data from users of public and academic library catalogues. The comparative analysis of subject searching behaviour focused on the role of browsing subject headings and brief references in search formulation. Opportunities for browsing are greatly constrained by indexing practices. It is suggested that a more integrated approach to pre-coordinate and post-coordinate searching would be more effective. The logging software has been developed for a number of commercial online catalogues including Geac, CLSI and LIBERTAS. The use of a diagnostic and monitoring tool in the evaluation of OPACs is advocated
    Type
    a
  19. King, N.S.: End-user errors : a content analysis of PaperChase transaction logs (1993) 0.00 
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    Abstract
    Reports on a study, conducted at Maryland Univ., of end users of MEDLINE using PaperChase, a user friendly, menu driven software package, designed to be used with little or no training. Transaction logs. Transaction logs were examined to identify the types and frequency of apparent searching errors made by end users. The study is an extension of a previous study conducted at Michigan Univ. Results indicate that, despite the PaperChase system prompts that attempt to guide users to proper terminology, potentially costly errors are being made. Of particular concern are the misuses and failure to use the controlled vocabulary. Results suggest that a measure of end user training may be advisable
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    a
  20. Vigue-Camus, A.: Des usagers et des écrans à la Bibliothèque Publique d'Informations (1996) 0.00 
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    Abstract
    Account of a limited experimental study at the Bibliothèque Publique d'Informations (BPI), the Paris multimedia public library, to establish a methodology for investigating user interactions with new technology. A wide range of materials are available at the BPI, including CD-ROMs and the Internet. Preliminary observations indicate that users do not follow the pattern dictated by the machine, but take approaches based on their own experience and skills. Setbacks are generally interpreted as defects in the software, not personla failure to master the system. Large scale qualitative abservation, using research methods from the social sciences, would establish a knowledge base for developing user skills to exploit multimedia resources more fully
    Type
    a

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