Publications
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Constructing A Joint Problem Space: The Computer As A Tool For Sharing Knowledge
This chapter presents a case study intended to exemplify the use of a computer as a cognitive tool for learning that occurs socially. We investigate a particularly important kind of…
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A Model for the Functioning of the Striatum
A model is presented for the operation of the striatum. The model posits that the basal ganglia are responsible for driving smooth transitions of state for an organism.
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A System For Labeling Self-Repairs In Speech
The system marks the location and extent of a repair, as well as relevant words in the region of the repair. Together these labels determine the relationship between the "error"…
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The Design and Assessment of A Hypermedia Course on Semiconductor Manufacturing
Learning effects were assessed. Results suggest that subjects who browsed via hypermedia links tended to more often bridge topic areas rather than explore them in depth, but there were little…
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The Grasper-CL Graph Management System
Grasper-CL [5] is a COMMON LISP system for manipulating and displaying graphs, and for building graph-based user interfaces for application programs.
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Fastus: A System For Extracting Information From Natural-Language Text
FASTUS is a system for extracting information from free text in English, and potentially other languages as well, for entry into a database, and potentially for other applications. It works…
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Connectionist Gender Adaptation in a Hybrid Neural Network / Hidden Markov Model Speech Recognition System
An approach to modeling long-term consistencies in peech signal within the framework of a hybrid Hidden Markov Model (HMM) / Multilayer Perceptron (MLP peaker-independent continuous-speech recognition system is presented.
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The Design Space of Frame Knowledge Representation Systems
This paper surveys the FRS design space in search of design principles for FRSs.
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Hybrid Neural Network/Hidden Markov Model Continuous Speech Recognition
In this paper we present a hybrid multilayer perceptron (MLP)/hidden Markov model (HMM) speaker-independent continuous-speech recognition system, in which the advantages of both approaches are combined by using MLPs to…
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Characterizing diagnoses and systems
In this paper we analyze the concept of diagnosis in depth exploiting the notions of implicate/implicant and prime implicate/implicant.
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Fundamentals Of Deductive Program Synthesis
An informal tutorial is presented for program synthesis, with an emphasis on deductive methods. According to this approach, to construct a program meeting a given specification, we prove the existence…
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Integrating Multiple Knowledge Sources for Detection and Correction of Repairs in Human-computer Dialog
We present here criteria and techniques for automatically detecting the presence of a repair, its location, and making the appropriate correction. The criteria involve integration of knowledge from several sources:…