Author: SRI International
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Document icons and page thumbnails: issues in construction of document thumbnails for page-image digital libraries
This paper documents some issues encountered in creating various kinds of renderings of page images for the UpLib digital library system, and suggests approaches for each, based on both problem analysis and user feedback.
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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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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 to up to four pairs of solutions.
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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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Collaborative extensions for the UpLib system
Describes the metadata sharing and extension sharing systems used with UpLib.
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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 improvement interventions—as a prerequisite to designing online sociotechnical infrastructure that supports the professional growth of education professionals.
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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 of speech that are delimited by various automatically extractable events of interest. We propose three methods for modeling NERFs that cope with missing features.
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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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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 and different travelling speeds), including live tests in an industrial crash-test facility.
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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.
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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 identification system is built with the MODGDF as the front end feature.