WorldCat Identities

Larson, Ray R.

Overview
Works: 11 works in 33 publications in 1 language and 92 library holdings
Genres: Conference papers and proceedings  Academic theses 
Roles: Author
Classifications: Z699, 025.00285
Publication Timeline
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Most widely held works by Ray R Larson
Users look at online catalogs : part 2, interacting with online catalogs : final report to the Council on Library Resources by Ray R Larson( Book )

6 editions published in 1983 in English and held by 24 WorldCat member libraries worldwide

Workload characteristics and computer system utilization in online library catalogs by Ray R Larson( )

8 editions published in 1986 in English and held by 18 WorldCat member libraries worldwide

This dissertation addresses the problems of measuring and evaluating the performance of online library catalog systems. The structure and functions of online catalogs, and the characteristics and needs of online catalog users are examined to provide a context for discussing performance measurement and evaluation. Various methodologies of computer performance evaluation are examined. Specific performance measures and methods of measurement and modelling for online catalog systems are described
Evaluating public access on-line catalogs : phase I, development and testing of data collection and analysis tools : final report to the Council on Library Resources by Ray R Larson( Book )

4 editions published in 1981 in English and held by 16 WorldCat member libraries worldwide

On-line catalog evaluation project data analysis plan by Gary S Lawrence( Book )

3 editions published in 1984 in English and held by 2 WorldCat member libraries worldwide

This document outlines the methodology to be used for analyzing and reporting data collected through questionnaires at the various libraries of the University of California in April and May of 1982, as the second phase of an online public access catalog (opac) evaluation project. It is noted that the project was designed to enable systems designers and librarians to: (1) improve opac system interface features; (2) improve opac implementation and support services; and (3) extend opac services to potential users. Sections describe project objectives and scope, the data sources used in the study, the standard statistical reports to be produced, the processing and application of organization-supplied data, analysis of user and non-user questionnaires, and comparison of user and non-user data. Appendices present a sample computer catalog profile; examples of the report formats for multiple response variables, Likert-scale variables, demographic analyses, and site/group comparisons; a list of variables derived from computer system profiles; and extensive listings of variables and codes for the user questionnaire, the non-user questionnaire, and the user/non-user comparison file. (Esr)
Interacting with online catalogs by Ray R Larson( Book )

1 edition published in 1983 in English and held by 1 WorldCat member library worldwide

Evaluating Public Access on-Line Catalogs. Phase I: Development and Testing of Data Collection and Analysis Tools. Final Report by Ray R Larson( Book )

1 edition published in 1981 in English and held by 1 WorldCat member library worldwide

This report outlines specifications for the online transaction monitoring and questionnaire administration features of the University of California's (uc) Prototype On-Line Catalog, known as melvyl. The development and testing of these features by the uc Division of Library Automation (dla) is also described. This document is the final report during Phase I of a 2-year Council on Library Resources (clr) evaluation project covering 14 online public access catalog systems in the United States and 1 in Canada. Sections of the report describe (1) melvyl system configuration and user transaction monitoring; (2) monitor data normalization and analysis using online statistical file processing (sabs) and batch processing with the Statistical Package for the Social Sciences (spss); (3) online questionnaire administration; and (4) user activity during a 1981 melvyl pretest. Preliminary comparisons of searching patterns in the online and card catalogs are included. Appendices provide an overview of the melvyl patron interface, detailed descriptions of monitor records from the user transaction log, descriptions of the files generated by sabs and the spss programs, and examples of the statistical reports produced by sabs and spss processing. (Esr)
Berkeley's TREC 8 Interactive Track Entry: Cheshire II and Zprise( )

1 edition published in 2006 in English and held by 1 WorldCat member library worldwide

This paper briefly discusses the UC Berkeley entry in the TREC 8 Interactive Track. In this year's study twelve searchers conducted six searches each, half on the Cheshire II system and the other half on the Zprise system, for a total of 72 searches. Questionnaires were administered to each participant to gather information about basic demographic and searching experience, about each search, about each of the systems, and finally, about the user's perceptions of the systems. In this paper, I will briefly describe the systems used in the study and how they differ in design goals and implementation. The results of the interactive track evaluations and the information derived from the questionnaires are then discussed and future improvements to the Cheshire II system are considered
Enhancing topical searching using classification clustering by Ray R Larson( )

1 edition published in 1989 in English and held by 1 WorldCat member library worldwide

Users Look at Online Catalogs. Part 2: Interacting with Online Catalogs. Final Report by Ray R Larson( Book )

1 edition published in 1983 in English and held by 1 WorldCat member library worldwide

This report focuses on a discussion of findings from analyses of computer transaction logs contributed by four of the online catalog systems used in the Public Access Project. It supplements the analyses of User and Non-User Questionnaires by providing analyses of data from the systems themselves. The four systems contributing data to this analysis were (1) mums/scorpio, two related systems used at the Library of Congress; (2) luis, the Northwestern University public access system; (3) ulisys (Universal Library Systems), a turnkey vendor system at the West Valley Community College District; and (4) melvyl, the prototype online union catalog of the University of California. The contents of the four transaction logs are described in detail and samples are provided. For each system the analysis includes the relative use of system commands and access points, tables of transactions, transitions from one command to another, and measures of the complexity of actual searches conducted by users. Use of commands is analyzed both in raw form and by generic type of command. Transaction logs for each system are appended. (Author/LMM)
Between Scylla and Charybdis subject searching in the online catalog by Ray R Larson( )

1 edition published in 1991 in Undetermined and held by 0 WorldCat member libraries worldwide

 
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Audience level: 0.74 (from 0.66 for Evaluating ... to 1.00 for Between Sc ...)

Languages
English (32)