Showing papers on "User modeling published in 1975"
01 Jan 1975
TL;DR: Lin and Garvey noted, in reviewing the 1971 literature, that user studies continued to thrive in the United States and that beginning in the 1970s there was a good deal of activity in other nations; it has become a truly international phenomenon.
Abstract: It has been estimated1 that there have been between 400 and 600 user studies in science and technology, the exact number depending upon the way in which user studies are defined. However, this figure may give an exaggerated indication of the amount of valuable activity in this field, because it has been estimated by the United States Federal Council for Science and Technology2 that only 58 contributions from 450 publications identified in the field of user studies were based upon objective data. Since 1968 when the estimate of 400 – 600 studies was given, the literature has continued to grow. Lin and Garvey3 noted, in reviewing the 1971 literature, that user studies continued to thrive in the United States and that beginning in the 1970s there was a good deal of activity in other nations; it has become a truly international phenomenon.
22 citations
TL;DR: This paper discusses what in The Mead Corporation have found to be certain aspects of search strategy with respect to searching large data bases and certain problem areas that remain and four specific areas in the interface language are defined.
Abstract: This paper discusses what in The Mead Corporation have found to be certain aspects of search strategy with respect to searching large data bases and certain problem areas that remain. The paper defines some problem areas, especially problem areas in the freeing-up of the interface language between the user and the search process. Four specific areas in the interface language are defined, and a recommendation is made concerning basic research into some linguistic meanings for the four areas.
4 citations
24 Sep 1975
TL;DR: The paper presents a possible approach to the solution of questions of interest about the extent to which user interfaces should be standardized, the techniques which allow rapid implementation of new more specialized interfaces, or the procedure for selecting the most suitable interface for a given problem.
Abstract: In light of the necessary investments, commercially available data base systems usually offer comparatively general-purpose interfaces These are suitable only for the data base specialist In order for a data base system to attract non-programmer users, interfaces must be provided that approximate the special user terminology and conceptualizations If, in particular, these users form a heterogeneous group, a variety of interfaces will be required Questions of interest are then the extent to which user interfaces should be standardized, the techniques which allow rapid implementation of new more specialized interfaces, or the procedure for selecting the most suitable interface for a given problem Based on the concept of hierarchy of abstract machines, the paper presents a possible approach to the solution of these questions Three examples will be introduced to critically examine the concept and demonstrate some of its merits and shortcomings
2 citations
01 Jan 1975
TL;DR: The notion of “superposition codes” will be introduced and it will be shown how these codes dominate other transmission schemes.
Abstract: We shall first give a brief review of the concepts used in the theory of simple communication systems. These concepts will then be extended to multiple users communication systems. Finally, the notion of “superposition codes” will be introduced and we shall show how these codes dominate other transmission schemes. for a very large class of multiple users channels.