Interactive systems must be designed to furnish error information to the user and must be able to accept a modification to the input and continue to cycle until convergence on the desired output is reached. (10 references) (Author)

This book discusses the relatively new development of interactive communication or dialog between men and computers. In this mutual exchange of information between two systems, each enjoys some independence of action, and the demand for improved information systems would be alleviated if effective communication between man and machine were…

Presents an overview of the IR-NLI II system, an expert interface that allows users to access online information retrieval systems and that encompasses user modeling capabilities. Highlights include the design of the system, the structure and content of stereotypes that represent typical classes of users, and construction of user models.…

Hypermedia and object oriented programming systems (OOPs) represent examples of "open" computer environments that allow the user access to parts of the code or operating system. Both systems share fundamental intellectual concepts (objects, messages, methods, classes, and inheritance), so that an understanding of hypermedia can help in…

Discusses the CODER system, which was developed to investigate the application of artificial intelligence methods to increase the effectiveness of information retrieval systems, particularly those involving heterogeneous documents. Highlights include the use of PROLOG programing, blackboard-based designs, knowledge engineering, lexicological…

Describes the mental coding processes involved in the flow of information when the user is interacting with an enabling information-retrieval (IR) system, or a system designed to stimulate the user's grasping towards a higher understanding of the information need/problem/task that brought the user to the system. (Author/AEF)

Presents an overview of the ways in which user/system interaction in interactive information-retrieval (IR) systems has been treated in IR research and practice over the years. Describes the characteristics of a number of IR systems, as well as proposals for IR systems, in light of challenges set for by John Bennett in 1971. Contains 82…

Presents an interaction model and an experimental method for information retrieval. This automated method helps identify which user and system variables are relevant, which are independent of other variables, and which ranges of the variables are most important. Results show that relevance feedback consistently improves retrieval performance. (AEF)

Explores what an intelligent information retrieval system involves and why expert system techniques might interest system designers. Expert systems research is reviewed with emphasis on components, architecture, and computer interaction, and it is concluded that information retrieval is not an ideal problem domain for expert system application at…

Special types of prosthetic devices have been designed to support the specific needs of disabled and handicapped computer users in retrieving information. Of particular importance are interfaces based on the use of sound, tactile operations, and gestures. Such interfaces may be used to provide disabled people with access to hypermedia information.…

Explores the concepts of interaction and interactivity presented in different theoretical models in the fields of human-computer interaction (HCI) and information-seeking/searching behavior, and relates these to information retrieval (IR) research. Suggests that interaction in HCI is primarily concerned with establishing a user/system dialogue at…

A description is provided of GUIDE-0, an experimental information system. The system serves as a bibliographic aid for students who are taking introductory computer science courses whose material is at least partially implemented via PLATO-IV lessons. Following a brief introduction to the system in Chapter I, the second Chapter describes the…

Information systems (IS) professionals are called on to produce increasingly sophisticated user interfaces as a part of software development. Although IS education includes coverage of user interface (UI) development, classroom presentation of this topic frequently is cursory and does not provide any particular methodology for the task. In this…

REACTIONS OF A USER POPULATION (SCIENTISTS/ENGINEERS AND LIBRARIANS) TO AN OPERATIONAL TEST OF AN ON-LINE SYSTEM FOR RETRIEVING DOCUMENT CITATIONS (RECON) WERE STUDIED AT SEVERAL NASA FACILITIES. DURING A TWO MONTH OPERATIONAL TEST PERIOD, DATA WERE COLLECTED REGARDING FREQUENCY OF USAGE AND DEGREE OF SUCCESS ENCOUNTERED IN CONDUCTING ON-LINE…

During the present decade cable television (CATV) systems will be franchised in most metropolitan areas of the nation. Previously, CATV has mainly transmitted over-the-air broadcast signals to small communities, but in the urban setting the capabilities of wideband cable (e.g., 30 channels per cable) can be expanded and applied to new…