Publications
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Modeling the Prosody of Hidden Events for Improved Word Recognition
We investigate a new approach for using speech prosody as a knowledge source for speech recognition. The idea is to penalize word hypotheses that are inconsistent with prosodic features such…
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Combining Words and Prosody for Information Extraction from Speech
In this work we demonstrate the use of em prosodic cues, alone and in combination with words, for segmentation and name finding. In experiments, we find that prosodic cues alone…
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Characterizing the Performance of Multiple-Image Point-Correspondence Algorithms using Self-Consistency
A new approach to characterizing the performance of point- correspondence algorithms is presented.
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Robust Text-Independent Speaker Identification over Telephone Channels
This paper addresses the issue of closed-set text-independent speaker identifcation from samples of speech recorded over the telephone. It focuses on the effects of acoustic mismatches between training and testing…
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At the Boundary of Workflow and AI
This paper describes how techniques from the AI community, specifically reactive control, planning, and scheduling, could be leveraged to develop powerful, next-generation adaptive workflow engines that provide many of the…
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Task-based Information Management
We are constructing a system, called the Task-based Information Distribution Environment (TIDE), that delivers information to participants in a dynamic collaboration by evaluating the relevance of incoming and newly generated…
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Reconfigurable Elements for a Video Pipeline Processor
This paper describes a family of reconfigurable processing elements (RPEs) used to support video processing for the Sarnoff Vision Front End 200 (VFE-200) vision system.
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Construct Validation Of Mathematics Achievement: Evidence From Interview Procedures
This study investigated the validity of measures derived from a large-scale multiple-choice achievement test in mathematics, using evidence from introspective think-aloud protocols of students as they attempted test items.
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A Collaborative Environment for Authoring Large Knowledge Bases
We present an architecture for scalable frame representation systems (FRSs). KBs must be supported for rapid construction by a collaborative effort of teams of knowledge engineers through reuse of existing…
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Organizing Principles for Science Education Partnerships: Case Studies of Students’ Learning About ‘Rats in Space’ and ‘Deformed Frogs
We show that our Scaffolded Knowledge Integration framework gives partnerships a head start on effective designs. We illustrate this process with the Deformed Frogs partnership and the Rats in Space…
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From Moo To Meow: Domesticating Technology For Online Communities
Informed by our experience with TAPPED IN and reviews of related work, we are developing a new online “community-ware” technology called MEOW (Multi-user Educational Online Workspace) which can scale to…
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Integrated Pathway/Genome Databases and Their Role in Drug Discovery
We describe pathway-based analyses of the genomes of a number of medically relevant microorganisms, and a novel software tool that provides visualization of gene expression data on a diagram showing…