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Achieving Real-Time Mode Estimation through Offline Compilation
(2002-10-22)
As exploration of our solar system and outerspace move into the future, spacecraft are being developed to venture on increasingly challenging missions with bold objectives. The spacecraft tasked with completing these ...
Surface Reflectance Recognition and Real-World Illumination Statistics
(2002-10-01)
Humans distinguish materials such as metal, plastic, and paper effortlessly at a glance. Traditional computer vision systems cannot solve this problem at all. Recognizing surface reflectance properties from a single ...
Understanding Subsystems in Biology through Dimensionality Reduction, Graph Partitioning and Analytical Modeling
(2003-02-05)
Biological systems exhibit rich and complex behavior through the orchestrated interplay of a large array of components. It is hypothesized that separable subsystems with some degree of functional autonomy exist; deciphering ...
Reinforcement Learning by Policy Search
(2003-02-14)
One objective of artificial intelligence is to model the behavior of an intelligent agent interacting with its environment. The environment's transformations can be modeled as a Markov chain, whose state is partially ...
A Reinforcement-Learning Approach to Power Management
(2002-05-01)
We describe an adaptive, mid-level approach to the wireless device power management problem. Our approach is based on reinforcement learning, a machine learning framework for autonomous agents. We describe how our ...
Detecting Faces in Impoverished Images
(2001-11-05)
The ability to detect faces in images is of critical ecological significance. It is a pre-requisite for other important face perception tasks such as person identification, gender classification and affect analysis. Here ...
Perceiving Illumination Inconsistencies in Scenes
(2001-11-05)
The human visual system is adept at detecting and encoding statistical regularities in its spatio-temporal environment. Here we report an unexpected failure of this ability in the context of perceiving inconsistencies in ...
Improving Multiclass Text Classification with the Support Vector Machine
(2001-10-16)
We compare Naive Bayes and Support Vector Machines on the task of multiclass text classification. Using a variety of approaches to combine the underlying binary classifiers, we find that SVMs substantially outperform Naive ...
Perceptual Evaluation of Video-Realistic Speech
(2003-02-28)
abstract With many visual speech animation techniques now available, there is a clear need for systematic perceptual evaluation schemes. We describe here our scheme and its application to a new video-realistic ...
Relative Contributions of Internal and External Features to Face Recognition
(2003-03-01)
The central challenge in face recognition lies in understanding the role different facial features play in our judgments of identity. Notable in this regard are the relative contributions of the internal (eyes, nose and ...