Publications
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A Cognitive Framework for Delegation to an Assistive User Agent
We present a BDI-based framework for a cognitive agent that acts as an assistant to a human user by performing tasks on her behalf. This framework accommodates: (1) user delegation…
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Incorporating Tandem / HATs MLP Features into SRI’s Conversational Speech Recognition System
We describe the development of a speech recognition system for conversational telephone speech (CTS) that incorporates acoustic features estimated by multilayer perceptrons (MLPs). The acoustic features are based on frame-level…
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Constructing Padi Measurement Models for the BEAR Scoring Engine (Padi Technical Report 7)
Connections among the task design, student work products, evaluation, and inferential reasoning are highlighted, and the BEAR Scoring Engine is presented as one example of how multidimensional item response modeling…
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Combining Feature Sets with Support Vector Machines: Application to Speaker Recognition
In this paper, we describe a general technique for optimizing the relative weights of feature sets in a support vector machine (SVM) and show how it can be applied to…
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Four Weightings and a Fusion: A Cepstral-SVM System for Speaker Recognition
A new speaker recognition system is described that uses Mel-frequency cepstral features. This system is a combination of four support vector machines (SVMs). All the SVM systems use polynomial features…
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A* Based Joint Segmentation and Classification of Dialog Acts in Multiparty Meetings
We investigate the use of the A* algorithm for joint segmentation and classification of dialog acts (DAs) of the ICSI Meeting Corpus. The proposed method is evaluated on both traditional…
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Multirate ASR Models for Phone-Class Dependent N-Best List Rescoring
In this work, we describe a technique to augment a recognizer that uses this compromise with information from multiple-rate spectral models that emphasize either better time or better frequency resolution…
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Singapore Tablet PC Program Study: Executive Summary and Final Report, Volume 1, Technical Findings
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Mapping The Distribution Of Expertise And Resources In A School: Investigating The Potential Of Using Social Network Analysis In Evaluation
This paper describes results of a study investigating the potential of using social network analysis to evaluate the capacity of a school to undertake a schoolwide educational reform.
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Singapore Tablet PC Program Study: Executive Summary and Final Report, Volume 2, Technical Appendicies
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VERL: An ontology framework for representing and annotating video events
This article describes the findings of a recent workshop series that has produced an ontology framework for representing video events-called Video Event Representation Language (VERL) -and a companion annotation framework,…
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Task Management under Change and Uncertainty: Constraint Solving Experience with the CALO Project
We outline the challenges and opportunities presented by constraint solving in the presence of change and uncertainty, embodied in CALO's personalized time management and task reasoning and execution systems.