Publications
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Nonparametric feature normalization for SVM-based speaker verification
We investigate several feature normalization and scaling approaches for use in speaker verification based on support vector machines.
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Constraint Refinement for Online Verifiable Cross-Layer System Adaptation
We present a novel approach to developing cross-layer optimization for resource limited real-time distributed systems, based on a constraint refinement technique combined with formal specification and feedback from system implementation.
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Field Desorption Ion Source Development for Neutron Generators
A new approach to deuterium ion sources for deuterium-tritium neutron generators is being developed. The source is based upon the field desorption of deuterium from the surfaces of metal tips.
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Effective Monitoring of a Survivable Distributed Networked Information System
This report describes the monitoring, intrusion detection, and reporting infrastructure of the resulting system highlighting the design principles and lessons learned that are generally applicable to survivable information systems.
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Laser-Ionization Mass Spectrometry of Explosives and Chemical Warfare Simulants
The objective of the present study was to better understand the photophysics of explosives and chemical warfare simulants in order to develop better performing analytical tools.
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Open-vocabulary spoken term detection using graphone-based hybrid recognition systems
We address the problem of retrieving out-of-vocabulary (OOV) words/queries from audio archives for spoken term detection (STD) task. In this work, we employ hybrid recognition systems which contain both words…
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Metallothionein Induction By Hypoxia Involves Cooperative Interactions Between Metal-Responsive Transcription Factor-1 and Hypoxia-Inducible Transcription Factor-1 Alpha
Here, we provide evidence that the protumorigenic hypoxia-inducible transcription factor-1α (HIF-1α) is essential for induction of MT-1 by hypoxia, but not zinc.
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Name-aware Speech Recognition for Interactive Question Answering
In this work we show how interactivity in a voice-enabled question answering application may improve speech recognition. We allow the user to provide a target named entity before asking the…
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The Role of Scaling Up Research in Designing for and Evaluating Robustness
In this article, we develop an argument that scaling up research can contribute important new knowledge by focusing researchers’ attention on the robustness of an innovation when used by varied…
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System combination using auxiliary information for speaker verification
We propose a modified linear logistic regression procedure that conditions combination weights on the auxiliary information. A regularization procedure is used to control the complexity of the extended model.
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SocialTV: designing for distributed, social television viewing
In this paper, we describe the initial results from a series of studies illustrating how people interact in front of a television set.
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The Magitti activity-aware leisure guide
The Magitti solution*, developed at PARC in close collaboration with DNP personnel, was designed to be synergistic with DNP's existing strengths in the publishing industry whilst incorporating the latest in…