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Kantor, P.B.; Saracevic, T.: Quantitative study of the value of research libraries : a foundation for the evaluation of digital libraries (1999) 0.06
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Abstract

In anticipation of the explosive growth of digital libraries, a complex study was undertaken seeking to evaluate 21 diverse services at 5 major academic research libraries. This work stands as a model for evaluation of digital libraries, through its focus on both the costs of operations and the impacts of the services that those operations provide. The data have been analyzed using both statistical methods and methods of Data Envelopment Analysis. The results of the study, which are presented in detail, serve to demonstrate that a cross-functional approach to library services is feasible. They also highlight a new measure of impact, which is a weighted logarithmic combination of the amount of time that users spend interacting with the service, combined with a Likert-scale indication of the value of that service in relation to the time expended. The measure derived, incorporating simple information obtainable from the user, together with information which is readily available in server/client logs, provides an excellent foundation for transferring these measurement principles to the Digital Library environment
Saracevic, T.: Information science (2009) 0.05
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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

Saracevic, T.; Kantor, P.: Online searching : still an imprecise art (1991) 0.04

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Abstract: Summarises the results of a research project which investigated the human decision making and user-system interactions which take place during online searching. Searches were carried out by professional searchers using DIALOG databases, and rated for relevance, precision and recall
Source: Library journal. 116(1991) no.16, S.47-51

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

Saracevic, T.: ¬A research project on classification of questions in information retrieval : preliminary work (1980) 0.01

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Saracevic, T.; Kantor, P.B.: Studying the value of library and information services : Part II: Methodology and taxonomy (1997) 0.01

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Footnote: 2nd 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

Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.01

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Pages: S.22-25

Saracevic, T.: Indexing, searching, and relevance (1989) 0.01

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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)

Saracevic, T.; Mokros, H.; Su, L.: Nature of interaction between users and intermediaries in online searching : a qualitative analysis (1990) 0.01
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Abstract

Reports preliminary results from a study, conducted at Rutgers Univ., School of Communication, Information and Library Studies, to conduct observations and experiments under real-life conditions on the nature, effects and patterns in the discourse between users and intermediary searchers and in the related computer commands in the context of online searching and responses. The study involved videotaping interactions between users and intermediaries and recording the search logs for 40 questions. Users judged the relevance of output and completed a number of other measures. Data is analysed both quantitatively, using standard and innovative statistical techniques, and qualitatively, through a grounded theory approach using microanalytic and observational methods

Mokros, H.B.; Mullins, L.S.; Saracevic, T.: Practice and personhood in professional interaction : social identities and information needs (1995) 0.01

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Source: Library and information science research. 17(1995) no.3, S.237-257

Saracevic, T.: Ciencia da informacao, origem, evolucao e relacoes (1996) 0.01

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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

Saracevic, T.: Effects of inconsistent relevance judgments on information retrieval test results : a historical perspective (2008) 0.00

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Source: Library trends. 56(2008) no.4, S.763-783

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