SOME MACHINE-PRODUCED INDEXES ARE COMPARED TO ASSIST IN DECIDING ON THE FORMAT FOR A PROPOSED INDEX. THE OBJECTIVES OF AN INDEX AND THE SEARCH PROCEDURE ARE ANALYZED, AND AN EXPLANATION AND A RELATIONSHIP IS GIVEN FOR KEY-WORDS-IN-TITLE AND KEY-REFERENCES OF THE SAME ARTICLE. BASED ON THE COMPARISON OF THE INDEXES, A 53- YEAR CUMULATIVE INDEX WAS…

The retrieval effectiveness of Keywork-In-Context (KWIC) indexing is sought using a simple search simulation which constrains the user to approach a KWIC index with subject keywords and references dictated by a conventional index. A comparison of several KWIC index studies, using various methodologies, shows retrievability ratios of 35 percent -…

This volume contains the first two lessons of a course in subject indexing based upon the Educational Resources Information Center (ERIC) Thesaurus, Lesson 1 is an introduction to indexing, containing definitions and concepts related to the theory of indexing and information retrieval as well as an introduction to the ERIC Thesaurus. Lesson 2 is…

The operational retrospective retrieval service offered by BIOSIS exploits a file created essentially without vocabulary control. A pragmatic program of file building criteria has been persued which has provided improved retrieval and an annual summary of the vocabulary of the literature. (11 references) (Author/KE)

The experiments involved 11,571 abstracts (with titles), 1,000 key-word stems and 93 search requests. Measures of word association are derived in several ways from the numbers of documents in which two given words co-occur, and measures of similarity from the numbers of words associated with both. Word clusters with different degrees of overlap…

Some of the factors that must inevitably affect the assessment of printed indexes are discussed, together with the observation of two unexpected phenomena, namely an apparent relationship between precision and searching effort, and relationships between generality and both recall and fallout. (4 references) (Author)

This paper compares the subject indexing on articles pertaining to Immanuel Kant, agriculture, and aging that are found simultaneously in Humanities Index, Academic Search Elite (EBSCO) and Periodicals Research II (Micromedia ProQuest), in order to show that there are substantial variations in the depth and quality of indexing in these databases.…

An experiment was conducted to design a corporate author index to a large bibliographic file. The nature of corporate entries necessitates a different search key construction from that of personal names or titles. Derivation of a search key to select distinct corporate entry records is discussed. (7 references) (Author)

In 1965 the Syracuse University School of Library Science held a symposium to explore the nature of the relationship between the structure and transmission of knowledge, on the one hand, and the array of bibliographic devices which have been developed to facilitate access to that knowledge, on the other. Papers presented discussed the need for a…

After a summary of background knowledge useful in searching for information, the authors cover extensively the sources available to the researcher interested in locating educational data or conducting a search of bibliographic materials. They list reference books, dictionaries, almanacs, yearbooks, subject matter summaries; and sources for…

This operating manual was constructed for the first version of the experimental database system SOUCIT, a qualified citation index for educational technology designed by the Computer Services Unit of Robert Gordon's Institute of Technology (RGIT) in association with the Scottish Education Department. The database comprises 45 references generated…

Describes methods for applying natural-language processing for automatic concept-based indexing of full text and methods for exploiting the structure and hierarchy of full-text documents to a large collection of full-text documents drawn from the Health Services/Technology Assessment Text database at the National Library of Medicine. Examines how…

The Uniterm system of coordinate indexing, developed by the Armed Services Technical Information Agency, provides a method for the organization, storage, and retrieval of information. The contents of reports are analyzed, and terms are assigned to the documents. For each term there is a card upon which the accession number of documents assigned…

A report of several comparisons designed to measure the retrieval effectiveness of machined-aided indexing and manual indexing. (Author)

Describes an indexing technique based on overlapping word fragments as reference strings that are linked in a directed graph structure which makes possible exact match-, partial match-, and masked-partial match-retrieval and indicates search strategies for each case. Eight figures, two tables, and nine references are provided. (RBF)