Publications
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Leveraging graph locality via abstraction
The use of abstraction to speedup problem solving is ubiquitous in AI, especially in the field of heuristic search where abstraction has proven a crucial technique for creating highly accurate…
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Regression testing for grammar-based systems
This paper describes best practices in two closely related regression testing frameworks used in grammar-based systems: MedSLT, a spoken language translation system based on the Regulus platform, and a search…
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An LFG Chinese grammar for machine use
This paper describes the Chinese grammar developed at PARC, including its three basic components: the tokenizer and tagger, lexicon and syntactic rules.
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PARC’s Bridge question answering system
This paper describes a system designed to robustly map from natural language sentences to logical, abstract knowledge representations (the Bridge system).
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Overlay mechanisms for multi-level deep processing applications
This paper discusses some engineering tools that are used in the XLE grammar development platform to allow for domain specialization.
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A Preference Model for Over-Constrained Meeting Requests
We develop a preference model designed to capture user scheduling preferences for overconstrained meeting requests between multiple people, and a methodology for preference elicitation to initially populate this model.
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Adapting Scenario-Based Curriculum Materials To Community College Technical Courses
This 3-year case study examined how 7 instructors and 78 students in California and Texas responded to the changes involved in implementing one type of reform program—the scenario-based curriculum.
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Nanoscience: A Vehicle For A Goals-Oriented Science Education Final Report
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Efficient Message Passing and Propagation of Simple Temporal Constraints
We first show that for an STN, these messages can be represented compactly as sub-STNs. We then present an efficient message passing scheme for computing the minimal constraints of an…
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Results from Levels 2/3 Fusion Implementations: Issues, Challenges, Retrospectives and Perspectives for the Future an Annotated Perspective
This paper is a retrospective annotated view of the invited panel discussion organized by Ivan Kadar (first author), supported by John Salerno, in order to provide both a historical perspective…
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Privacy enhancing technologies; papers from the 7th International Symposium (PET 2007)
To appropriately reflect this evolution, the PET workshop is changing its name to the Privacy Enhancing Technologies Symposium.
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An Intelligent Personal Assistant for Task and Time Management
We describe an intelligent personal assistant that has been developed to aid a busy knowledge worker in managing time commitments and performing tasks. The system draws on a diverse set…