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  • × author_ss:"Saracevic, T."
  1. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.04 
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    Pages
    S.22-25
    Series
    Proceedings of the American Society for Information Science; vol. 20
    Source
    Productivity in the information age : proceedings of the 46th ASIS annual meeting, 1983. Ed.: Raymond F Vondra
  2. Saracevic, T.: Individual differences in organizing, searching and retrieving information (1991) 0.03 
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    Abstract
    Synthesises the major findings of several decades of research into the magnitude of individual deffirences in information retrieval related tasks and suggests implications for practice and design. The study is related to a series of studies of human aspects and cognitive decision making in information seeking, searching and retrieving
    Imprint
    Medford : Learned Information Inc.
    Source
    ASIS'91: systems understanding people. Proc. of the 54th Annual Meeting of the ASIS, vol.28, Washington, DC, 27.-31.10.1991. Ed.: J.-M. Griffiths
  3. Saracevic, T.: Effects of inconsistent relevance judgments on information retrieval test results : a historical perspective (2008) 0.03 
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    Abstract
    The main objective of information retrieval (IR) systems is to retrieve information or information objects relevant to user requests and possible needs. In IR tests, retrieval effectiveness is established by comparing IR systems retrievals (systems relevance) with users' or user surrogates' assessments (user relevance), where user relevance is treated as the gold standard for performance evaluation. Relevance is a human notion, and establishing relevance by humans is fraught with a number of problems-inconsistency in judgment being one of them. The aim of this critical review is to explore the relationship between relevance on the one hand and testing of IR systems and procedures on the other. Critics of IR tests raised the issue of validity of the IR tests because they were based on relevance judgments that are inconsistent. This review traces and synthesizes experimental studies dealing with (1) inconsistency of relevance judgments by people, (2) effects of such inconsistency on results of IR tests and (3) reasons for retrieval failures. A historical context for these studies and for IR testing is provided including an assessment of Lancaster's (1969) evaluation of MEDLARS and its unique place in the history of IR evaluation.
    Content
    Beitrag in einem Themenheft 'The Influence of F. W. Lancaster on Information Science and on Libraries', das als Festschrift für F.W. Lancaster deklariert ist.
  4. Spink, A.; Saracevic, T.: Search term selection during mediated online searching (1993) 0.02 
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    Abstract
    Reports selected results from a large study, conducted at Rutgers University, NJ, which observed, under real life conditions the interactions between users, intermediaries and information retrieval systems before and during online searching. Examines the stages of the search process at which search terms from different sources were selected and how the search terms selected at different stages of the search process contributed to the retrieval of relevant items as judged by users. Notes the sequences in which terms were selected and analyzes the sequences to determine the types and frequencies of changes that occur in such sequences. Results indicate that there are regular patterns in search term selection during the online search process. Discusses the implications of these findings
    Imprint
    Medford, NJ : Learned Information
  5. Saracevic, T.: Indexing, searching, and relevance (1989) 0.02 
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    Footnote
    "As noted by many critics, the present design of online subject access, be it through library catalogs or online retrieval systems, does not accomodate human variability in searching (or indexing). This calls for radically different design principles and inplementations ir order to accomodate the observed patterns, interactions,and differences in human information behavior, of which the overlap findings are one of the important manifestations" (S.107)
  6. Saracevic, T.: Modelling interaction in information retrieval (IR) : a review and proposal (1996) 0.01 
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    Abstract
    Examines traditional and interactive models in information retrieval, and proposes an interactive information retrieval model based on different levels in the interactive process. Proposes a stratified interactive information retrieval model which has potential to account for a variety of aspects in the processes involved. In this model information retrieval interaction is decomposed into several levels that subtly affect each other. Makes general remarks on the state of information retrieval interaction research
    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
  7. Saracevic, T.: ¬The concept of 'relevance' in information science : a historical review (1970) 0.01 
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    Source
    Introduction to information science. Ed.: T. Saracevic
  8. Saracevic, T.: Charting the future of information science (1990) 0.01 
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    Source
    Bulletin of the American Society for Information Science. 16(1990) no.4, S.13
  9. Saracevic, T.: Information science (2009) 0.01 
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    Abstract
    The purpose of this entry is to provide an overview of information science as a field or discipline, including a historical perspective to illustrate the events and forces that shaped it. Information science is a field of professional practice and scientific inquiry dealing with effective communication of information and information objects, particularly knowledge records, among humans in the context of social, organizational, and individual need for and use of information. Information science emerged in the aftermath of the Second World War, as did a number of other fields, addressing the problem of information explosion and using technology as a solution. Presently, information science deals with the same problems in the Web and digital environments. This entry covers problems addressed by information science, the intellectual structure of the field, and the description of main areas-information retrieval, human information behavior, metric studies, and digital libraries. This entry also includes an account of education related to information science and conclusions about major characteristics.
    Source
    Encyclopedia of library and information sciences. 3rd ed. Ed.: M.J. Bates
  10. Brenner, E.H.; Saracevic, T.: Indexing and searching in perspective (1985) 0.01 
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    Imprint
    Philadelphia : National Federation of Abstracting and Information Services
    LCSH
    Information retrieval
    Subject
    Information retrieval
  11. Saracevic, T.: Information science (1999) 0.01 
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    Content
    Beitrag eines Themenheftes: The 50th Anniversary of the Journal of the American Society for Information Science. Pt.2: Paradigms, models, and models of information science
    Source
    Journal of the American Society for Information Science. 50(1999) no.12, S.1051
  12. Spink, A.; Saracevic, T.: Human-computer interaction in information retrieval : nature and manifestations of feedback (1998) 0.01 
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    Abstract
    Develops a theoretical framework for expressing the nature of feedback as a critical process in interactive information retrieval. Feedback concepts from cybernetics and social sciences perspectives are used to develop a concept of information feedback applicable to information retrieval. Adapts models from human-computer interaction and interactive information retrieval as a framework for studying the manifestations of feedback in information retrieval. Presents results from an empirical study of real-life interactions between users, professional mediators and an information retrieval system computer. Presents data involving 885 feedback loops classified in 5 categories. Presents a connection between the theoretical framework and empirical observations and provides a number of pragmatic and research suggestions
    Footnote
    Contribution to a special section of articles related to human-computer interaction and information retrieval
  13. Saracevic, T.; Kantor, P.B.: Studying the value of library and information services : Part I: Establishing a theoretical framework (1997) 0.01 
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    Abstract
    Discusses underlying concepts related to value that must be clarified in order to proceed with any pragmatic study of value, and establishes a theory of use-oriented value of information and information services. Examines the notion of value in philosophy and economics and in relation to library and information services as well as the connection between value and relevance. Develops 2 models: one related to use of information and the other to use of library and information services. They are a theoretical framework for pragmatic study of value and a guide for the development of a Derived Taxonomy of Value in Using Library and Information Services
    Footnote
    1st part of a study to develop a taxonomy of value-in-use of library and information services based on users assessments and to propose methods and instruments for similar studies of library and information services in general
    Source
    Journal of the American Society for Information Science. 48(1997) no.6, S.527-542
  14. Saracevic, T.: Relevance: a review of and a framework for the thinking on the notion in information science (1975) 0.01 
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    Footnote
    Vg. auch die Beiträge in: Journal of the American Society for Information Science and Technology 58(2007) no.13, S.1915-1933 (Relevance: A review of the literature and a framework for thinking on the notion in information science. Part II: nature and manifestations of relevance) und S.2126 - 2144 (Relevance: A review of the literature and a framework for thinking on the notion in information science. Part III: Behavior and effects of relevance).
    Source
    Journal of the American Society for Information Science. 26(1975), S.321-343
  15. Belkin, N.J.; Chang, S.J.; Downs, T.; Saracevic, T.; Zhao, S.: Taking account of user tasks, goals and behavior for the design of online public access catalogs (1990) 0.01 
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    Imprint
    Medford, NJ : Learned Information Inc.
    Source
    ASIS'90: Information in the year 2000: from research to application. Proc. 33rd Annual Meeting of the American Society for Information Science
  16. Saracevic, T.: Why is relevance still the basic notion in information science? (2015) 0.01 
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    Source
    Re:inventing information science in the networked society: Proceedings of the 14th International Symposium on Information Science, Zadar/Croatia, 19th-21st May 2015. Eds.: F. Pehar, C. Schloegl u. C. Wolff
  17. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.2: users, questions, and effectiveness (1988) 0.01 
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    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.177-196
  18. Saracevic, T.; Kantor, P.: ¬A study of information seeking and retrieving : pt.3: searchers, searches, and overlap (1988) 0.01 
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    Source
    Journal of the American Society for Information Science. 39(1988) no.3, S.197-216
  19. Saracevic, T.: Ciencia da informacao, origem, evolucao e relacoes (1996) 0.01 
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    Abstract
    Information science is best defined as a discipline in terms of the problems it addresses. Its origins date back to the scientific and technical revolution after the 2nd World War, and its development has been essentially characterised by interdisciplinarity. Librarianship, computer science, cognitive science and communication studies all share interests with infomation science, but with increasing emphasis on the information society and the information industry dictated by technological imparatives, information science is now at a critical point in its evolution. The problem it sets out to solve are not decreasing but changing, with the pressure to improve access to an ever increasing store of knowledge. The social need for information science is evident, whatever the name given to the knowledge and skills which it encompasses
    Content
    Translation of a presentation given at the International Conference on Conceptions of Library and Information Science held at the University of Tampere in Aug 1991
    Footnote
    Übers. d. Titels: Information science: origin, evolution and relations
  20. Saracevic, T.: ¬A research project on classification of questions in information retrieval : preliminary work (1980) 0.01 
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    Source
    Communicating information : proceedings of the 43rd Asis annual meeting, Anaheim, California, October 5-10, 1980. Eds.: Alan R Benenfeld u. Edward John Kazlauskas

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