Publications
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The SPARK Agent Framework
We describe the SRI Procedural Agent Realization Kit (SPARK), a new BDI agent framework that combines scaleability and the clean semantic underpinning of more formal agent frameworks.
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A Minimal Solution to the Generalized 3-Point Pose Problem
It is a well known classical result that given the image projections of three known world points it is possible to solve for the pose of a calibrated perspective camera…
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Comparing and Combining Generative and Posterior Probability Models: Some Advances in Sentence Boundary Detection in Speech
We compare and contrast two different models for detecting sentence-like units in continuous speech. Both models combine lexical, syntactic, and prosodic information.
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Collaborative extensions for the UpLib system
Describes the metadata sharing and extension sharing systems used with UpLib.
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Modeling NERFs for Speaker Recognition
We introduce a new type of feature to capture long-range patterns associated with individual speakers or with speaking styles. NERFs, or Nonuniform Extraction Region Features, are defined based on regions…
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Visual Odometry
We present a system that estimates the motion of a stereo head or a single moving camera based on video input.
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National Early Intervention Longitudinal Study (NEILS): Expenditure Study
This study used the “ingredients” approach or Resource Cost Model (RCM) to analyze early intervention expenditures. The RCM represents a bottom-up methodology for organizing and analyzing resource allocation data.
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Teacher Professional Development, Technology, And Communities Of Practice: Are We Putting The Cart Before The Horse?
In this paper, we seek guideposts to help education technologists understand the nature of local K-12 education communities of practice specifically their reciprocal relationship with teacher professional development and instructional…
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Stereo-Based Vision System for Automotive Imminent Collision Detection
In this paper, we demonstrate that stereo vision is a promising solution to this problem. Our prototype system has been rigorously tested for different colliding scenarios (e.g., different intersection angles…
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Application of the Modified Group Delay Function to Speaker Identification and Discrimination
In this paper, we explore new methods by which speakers can be identified and discriminated, using features derived from the fourier transform phase. A Gaussian mixture model (GMM) based speaker…
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The Use of a Linguistically Motivated Language Model in Conversational Speech Recognition
In this paper we show that such a model can be used effectively and efficiently in all stages of a complex, multi-pass conversational telephone speech recognition system.
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Demonstrating Boolean Logic Using Simple Electrical Circuits
To provide a more direct and tangible connection of logic with a real-world application, I developed this enrichment activity.