Author: SRI International
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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 data, and concentrates on two approaches: extracting features that are robust against channel variations, and transforming the speaker models to compensate for channel effects.
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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 information to collaborators’ current tasks.
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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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The Probability Inquiry Environment: A Collaborative, Inquiry-Based Simulation Environment
We report on the Probability Inquiry Environment (PIE), which facilitates the development of probabilistic reasoning by making available collaborative inquiry activities and student-controlled simulations.
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Trajectories From Today’s WWW To A Powerful Educational Infrastructure
Over the course of two days, the participants generated a wealth of ideas about the limitations of today’s web, its near-term trajectories, and potential educational advances. We share a summary of those ideas here.
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Combining Words and Speech Prosody for Automatic Topic Segmentation
We present a probabilistic model that uses both prosodic and lexical cues for the automatic segmentation of speech into topic units. The approach combines hidden Markov models, statistical language models, and prosody-based decision trees.
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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 partnership.
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Prolegomena to a Theory of Disability, Inability and Handicap
In this paper we extend a theory of action, IPT to try to elucidate these concepts. This attempt at elucidation is itself at most a prolegomena to a study that can usefully feedback into the moral and legal issues involving disabilities.
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Forward For The Components On Online Education
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Science In The Palm Of Their Hands
If we’re serious about having children use technology in K–12 classrooms, then we need to convince the gatekeepers of those classrooms as to the worth of the technology. Doing so requires that we speak in the language of the teachers’ profession: first identify the learning experiences and their outcomes, along with why those are desired,…
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Toward A Learning Technologies Knowledge Network
This paper describes the rationale and operations of the NSF-funded Center, and first-year progress in defining a set of CILT partnership projects with many other institutions that came out of our national theme-team workshops.