The Text-Pac System is capable of generating indexes and bulletins to provide a current information service without the selectivity feature. Indexes of the accumulated data base may also be used as a basis for manual retrospective searching. The manual search involves searching computer-prepared indexes from a machine readable data base produced…

Some problems arising in the combination of discipline-oriented retrieval systems for the purpose of constructing a specialized retrieval system for a multidisciplinary topic are considered. A compromise solution involving an augmented combined index is suggested. (4 references) (Author/NH)

The first of a series of five papers whose aim is to find a rational basis for indexing and some means to evaluate it. (Author)

A procedure for producing a Key-Word-Out-of-Context (KWOC) alerting tool for a specific field of information as a temporary alternative to computerization. (Author/AB)

The main purpose of the experiment was to answer the question whether broad or narrow terms function most effectively in the retrieval of relevant documents. The answer depends on what the user of the retrieval system wants, his wants being expressed in terms of stated precision-recall preference, or by the exact number of relevant documents he…

The report is concerned with the implementation of an on-line information storage and retrieval system for the Rome Air Development Center. This system is to incorporate techniques of automatic document classification for a large document collection in an interactive environment. Following a review of the system design, the implementation of the…

Problems of indexing and index use lie at the heart of information use. They determine maximum possible use of information systems and sources, affect communication with users, influence the use of retrieved documents, and should form a more important field of research than past history indicates. Previous research provides some clues to user…

The Multiterm system is shown to be a unique concept for producing a multilingual index via computer processing. The new concept has significance for international cooperative programs. (6 references) (Author/NH)

This research is concerned with reusing texts produced by audio describers as a source for automatically deriving shot-level indexing for film and video products. Results reinforce the notion that audio description is not sufficient on its own as a source for generating an index to the image, but it is valuable because it describes what is going…

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 experiment used five index languages to form nine different index files to the same collection of documents. Each index term, in each language, was treated in two ways: as an independent English term, and as a coded entry in a faceted-type thesaurus which specified relationships between terms. The performance effect of the thesaurus was then…

TRIAL is an information processing system that will perform editing, indexing, and retrieval of textual and certain types of numeric information. The system allows for: (1) the creation and maintenance of a master file, (2) indexing on words designated as 'key' words or, alternatively, on every word in the text, excluding those common terms that…

Investigates the use of signature files in Chinese information retrieval systems and proposes a new partitioning method-called Partitioned Signature File for Chinese (PSFC)-based on the characteristics of Chinese words. Experimental results confirm the features of PSFC and demonstrate its superiority over the traditional single signature file…

This report discusses the problem of the meansings of words used in information retrieval systems, and shows how semantic tools can aid in the communication which takes place between indexers and searchers via index terms. After treating the differing use of semantic tools in different types of systems, two tools (classification tables and…

A template for pictorial image description to be used by novice image searchers in recording their descriptions of images was tested; image attribute classes derived in previous research were used to model the template. Results indicated that users may need training and/or more guidance to correctly assign descriptors to higher-level classes.…