Publications
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Does Session Variability Compensation in Speaker Recognition Model Intrinsic Variation Under Mismatched Conditions?
We find that ISV compensation is remarkably successful on a corpus of intrinsic variation that is highly controlled for channel (a dominant component of ISV). The results are particularly surprising…
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Nonprofit Organizations and Pharmaceutical Research and Development
To provide a perspective on NPO business models, 10 SRI case studies are summarized herein, including basic and contract research, discovery of new drugs and biologics, pharmaceutical and biotech R&D…
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Ultra-Low-Power Electronics for Non-Invasive Medical Monitoring
We focus on the monitoring of the heart and describe a micropower electrocardiograph, an ultra-low-power pulse oximeter, an ultra-low-power phonocardiograph, an integrated-circuit switched-capacitor model of the heart, and a low-power…
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First Observations of Large-Scale Wave Structure and Equatorial Spread F Using Certo Radio Beaconon the C/NOFS Satellite
First observations of large-scale wave structure and the subsequent development of equatorial spread F, using total electron content derived from the ground based reception of beacon signals from the CERTO…
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The Wake-Promoting Effects of Hypocretin-1 are Attenuated in Old Rats
We sought to determine whether the wake-promoting effect of hypocretin changes with age in Wistar rats, a strain in which age-related changes in both sleep and hypocretin signaling have been…
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Building a Highly Accurate Mandarin Speech Recognizer with Language-Independent Technologies and Language-Dependent Modules
We describe a system for highly accurate large-vocabulary Mandarin speech recognition. The prevailing hidden Markov model based technologies are essentially language independent and constitute the backbone of our system.
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An Unfinished Canvas: District Capacity and the Use of New Funds for Arts Education in California
We assessed districts’ capacity with respect to arts education, explored early spending choices, and examined the relationship between the two.
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Feature-based and channel-based analyses of intrinsic variability in speaker verification
In this paper we explore the use of other speaker verification systems on the telephone channel data and compare against the GMM baseline. We found the GMM system to be…
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Leaving Flatland: Effcient Real-Time Three-Dimensional Perception and Motion Planning
In this article we present the complete details of the architecture and implementation of Leaving Flatland, an exploratory project that attempts to surmount the challenges of closing the loop between…
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From 3D space to third place: the social life of small virtual spaces
Through our virtual ethnography of dance clubs and corner bars in three MMO environments, we find four features of virtual public spaces that appear critical for their success: accessibility, social…
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Spectrum fusion: using multiple mass spectra for de novo peptide sequencing
We report on a new algorithm for combining the information from several mass spectra of the same peptide.
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Natural and implicit interaction systems
The notion that humans move purposefully to obtain information provides a guiding framework to interpret natural body movements and gestures as implicit cues.