Several problems of finding keys in directories are considered. Methods of searching ordered and unordered directories are analyzed. Searching on ranges of key values in also considered. Finally, design tradeoffs among the classes of directory and searching strategies are developed. (4 references) (Author/SJ)

Automatic processing of the bibliography on vapor-liquid equilibrium data is done by means of a specially developed mnemonic coding system. (Author/JB)

Describes the theoretical framework of a retrieval system that uses data structures called bitmaps to improve search algorithms for medium-sized systems. Information retrieval systems that contain the full text of the documents are discussed, and the use of inverted files such as concordances for small texts is explained. (24 references) (LRW)

This review of the Keyword-in-Context (KWIC) indexing considers its inception by Luhn, its original format and purpose, various applications and uses of the basic KWIC concept, its advantages and disadvantages, and evaluations of its effectiveness. (30 references) (Author/NH)

The characteristics of the Intrex subject/title inverted file are analyzed. Basic statistics of the inverted file are presented including various distributions of the index words and terms from which the file was derived, and statistics on stems, the file growth process, and redundancy measurements. A study of stems both with extremely high and…

This project comprises the second year's work of a 3-year research plan to develop computer programs, necessary data, and procedures for using the computer in a special field of musicology known as thematic indexing, and to explore the use of these techniques in other areas of music. During the second year, the research centered on three areas:…

Computerization seems to offer some solutions to the inadequacies of the card catalog. However, vocabulary obstacles must be overcome before the history, art history, and art students alike can enter libraries all over the world and quickly satisfy their various needs. (10 references) (Author/NH)

Describes project initiated at Georgia College to provide access to the information in small-town newspapers by developing an index-abstract for the Milledgeville, Georgia, "Southern Recorder" and its successors (1820-present). The nature of the index project, subject terms, funding, and the use of computers are discussed. Seven…

Introduces the multicharacter trie as an index structure that can improve the time needed for retrieving full-text materials stored on CD-ROMs. The advantages of this structure compared to other structures are described, and experimental results comparing it to the widely used B+ tree and other structures used for full-text retrieval are…

The logical structure of the data bank is described from the user's point of view, without reference to machine implementation. The length of files, records, segments, and fields are variable and unlimited; duplication factors are unlimited; sequence of files, records within file, and segments within record are random. All data are subject to…

The author discusses the impact of the "computer revolution" on the field of rhetoric and public address in terms of the potential applications of computer methods to rhetorical problems. He first discusses the computer as a very fast calculator, giving the example of a study that probably would not have been undertaken if the calculations had had…

A series of computer programs to handle natural language retrieval and analysis in a manner analogous to that of a statistical package is discussed. The document presents an overview of several language analysis projects currently underway, and of several research approaches to problems in language analysis. The manner in which the Language…

The role and place of the machine in scientific and technical information is explored including: basic trends in the development of information retrieval systems; preparation of engineering and scientific cadres with respect to mechanization and automation of information works; the logic of descriptor retrieval systems; the 'SETKA-3' automated…

This paper examines some of the finding aids (e.g., information that provides insight into a group of records in an archival collection) currently used or being developed by the National Archives and Records Administration (NARA). It explores their practicality and whether and how they can be improved. In addition, the paper analyzes the factors…

A project designed to permit people from different disciplines to locate and retrieve rapidly, and as specifically as possible, all items in a slide collection that fill their specific needs, is the subject of this paper. A field-test of the system for 35mm slides used within the fields of Art, History, Literature and Drama yielded the following…