Information & computer science publications
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Optimization of Bootstrapping in Circuits
We formally define the bootstrap problem, design a polynomial-time L-approximation algorithm using a novel method of rounding of a linear program, and show a matching hardness result: (L — epsilon) - inapproximability for any epsilon…
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Assessment and Content Authoring in Semantic Virtual Environments
This paper presents an approach to training in VEs that directly addresses these challenges and summarizes its application to a weapons maintenance task.
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Sub-Meter Vehicle Navigation Using Efficient Pre-Mapped Visual Landmarks
This paper presents a vehicle navigation system that is capable of achieving sub-meter GPS-denied navigation accuracy in large-scale urban environments, using pre-mapped visual landmarks.
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Probabilistic Inference Modulo Theories
We present SGDPLL(T ), an algorithm that solves probabilistic inference modulo theories, that is, inference problems over probabilistic models defined via a logic theory provided as a parameter.
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Analyzing hyperspectral images into multiple subspaces using Gaussian mixture models
I argue that the spectra in a hyperspectral datacube will usually lie in several low-dimensional subspaces, and that these subspaces are more easily estimated from the data than the endmembers.
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Spatial and Temporal Patterns in Preterm Birth in the United States
In order to help generate new research hypotheses, this study explored spatial and temporal patterns of preterm birth in a large, total-population dataset.
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Anomaly Detection and Diagnosis for Automatic Radio Network Verification
This paper focuses on the verification problem, proposing a novel framework that uses anomaly detection and diagnosis techniques that operate within a specified spatial scope.
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Snap-N-Eat: Food Recognition and Nutrition Estimation on a Smartphone
We present snap-n-eat, a mobile food recognition system. The system can recognize food and estimate the calorific and nutrition content of foods automatically without any user intervention.
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A Cross-language Study on Automatic Speech Disfluency Detection
We investigate two systems for automatic disfluency detection on English and Mandarin conversational speech data. The first system combines various lexical and prosodic features in a Conditional Random Field model for…
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Conflict-Directed Graph Coverage
In this paper, we open the black box and devise a new algorithm for this problem domain that we call conflict-directed graph coverage.
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Semantically Secure Order-Revealing Encryption: Multi-Input Functional Encryption without Obfuscation
We construct the first implementable encryption system supporting greater-than comparisons on encrypted data that provides the “best-possible” semantic security.
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Channel and Noise Robustness of Articulatory Features in a Deep Neural Net Based Speech Recognition System
This work presents a deep neural network (DNN)—hidden Markov model (HMM) based acoustic model where articulatory features are used in addition to mel-frequency cepstral coefficients (MFCC) for the Aurora-4 speech recognition task.