Publications
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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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Identifying Agreement and Disagreement in Conversational Speech: Use of Bayesian Networks to Model Pragmatic Dependencies
We describe a statistical approach for modeling agreements and disagreements in conversational interaction.
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Managing uncertainty in dialogue information state for real time understanding of multi-human meeting dialogue
Our ultimate aim is to model human-human dialogue (to the extent that it is feasible) in real-time, providing useful services (e.g. relevant document retrieval) and answering queries about the dialogue…
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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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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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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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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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Cross-dialectal Acoustic Data Sharing for Arabic Speech Recognition
In this paper we describe the use of acoustic data from Modern Standard Arabic (MSA) to improve the recognition of Egyptian Conversational Arabic (ECA).
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Evaluation Of Bias Correction Methods For ‘Worst-Case’ Selective Non-Participation In NAEP
Although NAEP has not been given an official confirmatory role under NCLB, one can expect greater scrutiny of the relationship between state scores and state NAEP scores in the coming…