Publications
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Metatheoretic Plan Summarization and Comparison
We describe a domain-independent framework for plan summarization and comparison that can help a human understand both key strategic elements of an individual plan and important differences among plans.
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Information scent and Web navigation: theory, models and automated usability evaluation
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Deductive Discovery and Composition of Resources
We consider the problem of answering a query, where the answer is not provided explicitly by any one resource, but has to be deduced from information provided by many resources;…
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Deploying a Personalized Time Management Agent
We report on our ongoing practical experience in designing, implementing, and deploying PTIME, a personalized agent for time management and meeting scheduling in an open, multi-agent environment. In developing PTIME…
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Early College High School Initiative: 2003-2005 Evaluation Report
This report is the second annual synthesis report on the national evaluation of the Bill & Melinda Gates Foundation ’s Early College High School Initiative (ECHSI). The foundation established the…
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Report On Technical Quality Of 6th And 8th Grade Student Assessments For The Tides Project
This report describes activities undertaken to create, pilot, and analyze technical quality of student assessments in sixth and eighth grades for the Transforming Instruction by Design in Earth Science (TIDES)…
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The Contribution of Cepstral and Stylistic Features to SRI’s 2005 NIST Speaker Recognition Evaluation System
Recent work in speaker recognition has demonstrated the advantage of modeling stylistic features in addition to traditional cepstral features, but to date there has been little study of the relative…
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The Use of Word N-grams and Parts of Speech for Hierarchical Cluster Language Modeling
We present extensions to the work of backoff hierarchical class n-gram language modeling of Zitouni et al. (2003) by studying the efficacy of exploring the use of parts of speech…
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Cross-Domain and Cross-Language Portability of Acoustic Features Estimated by Multilayer Perceptrons
In this paper we investigate how portable such features are across domains and languages. We show that even without retraining, English-trained MLP features can provide a significant boost to recognition…
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No Child Left Behind and Science Education: Opportunities, Challenges, and Risks
This article examines the opportunities, challenges, and risks that No Child Left Behind (NCLB) poses for science education in elementary and middle schools.
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Continuous Refinement of Agent Resource Estimates
The challenge we address is to reason about projected resource usage within a hierarchical task execution framework in order to improve agent effectiveness. Specifically, we seek to define and maintain…
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Generalized Linear Kernels for One-Versus-All Classification: Application to Speaker Recognition
In this paper, we examine the problem of kernel selection for one-versus-all (OVA) classification of multiclass data with support vector machines (SVMs). We focus specifically on the problem of training…