Reports an experiment in which verbalized tape-recorded searches on five subject indexes reveal the linguistic processing taking place. Extracts from the search transcriptions are given, and the search processing modes of seeking, scanning, and screening are discussed. (Author/KP)

Responds to Heppner and Krauskopf's article on an information processing approach to personal problem solving by presenting shortcomings in the approach, notably its failure to fully exploit the available information processing concepts to reconceptualize personal problem solving specifically or counseling in general. Nonetheless, sees the…

This article specifies some basic considerations regarding information processing and perception and suggests two related considerations when attempting to provide for learning. (Author)

Library text production and information retrieval applications require a programing language with string processing facilities. The most useful languages are SNOBOL, COMIT APL and PL/1. (Author/LS)

Measures of visual information processing in dyslexic and normal children were compared. Significant differences were found between dyslexics and normals at early stages of visual information processing. (ST)

The technique for machine-aided indexing developed at the Defense Documentation Center (DDC) is illustrated on a randomly chosen abstract. Additional text is provided in coded form so that the reader can more fully explore this technique. (2 references) (Author)

Groups of middle-aged and elderly women were compared on problem solving behavior. Results indicated a decline in the use of classification skills among the elderly and an inability to use constraint-seeking questions. (ST)

This paper describes how the problem of resolution of syntactic ambiguities is approached in the parser PHRASE, developed for use in experiments in automatic indexing and extracting. PHRASE is a multi-level parser for declarative sentences, in which the syntactic structure is built up in four stages. (10 references) (Author)

A method of constructing a check digit for nonconventional chemical codes is described. (5 references) (Author)

A system of automatic indexing based on Baye's theorem is described briefly. (18 references) (Author)

The author describes a method of automatic indexing using the assignment of priority to verbs which may also be viewed as a simulation of how a person classifies documents. (15 references) (Author/SJ)

The need to provide reliable information on the properties of substances and materials has led to the proposed establishment of a numerical data system. The problems this poses, the most urgent of which is that of developing basic methodological principles underlying the data system processes, are discussed. (32 references) (Author/KE)

Because of an absence of theory, rules and conventions for thesaurus construction and maintenance, an investigation of how thesauri are actually updated was conducted. Two concepts crucial to any theoretical foundation of thesauri and two techniques for systematic updating of a thesaurus are presented for consideration. (46 references) (Author/KE)

There are six major studies of the effect of indexing depth on retrieval performance. They differ in purpose, methodology, measures, indexing language, field of study, and data base--nevertheless, all have found depth of indexing to have the same effect upon information retrieval. (13 references) (Author/NH)

The adaptability of the theory of integrative levels to a generalised classification scheme is questioned in that its hypotheses have not been adequately developed and confirmed. It is suggested that not enough cognisance has been taken of twentieth century relativistic thinking in which space-time is treated as a continuum. (14 references)…