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JMIV
2010
87views more  JMIV 2010»
15 years 4 months ago
Infinite Photography: New Mathematical Model for High-Resolution Images
A new mathematical image model is introduced using the photographic process as the starting point. Images are represented as infinite sequences of photons allowing analysis at arb...
Tapio Helin, Matti Lassas, Samuli Siltanen
JMLR
2010
128views more  JMLR 2010»
15 years 4 months ago
Iterative Scaling and Coordinate Descent Methods for Maximum Entropy Models
Maximum entropy (Maxent) is useful in natural language processing and many other areas. Iterative scaling (IS) methods are one of the most popular approaches to solve Maxent. With...
Fang-Lan Huang, Cho-Jui Hsieh, Kai-Wei Chang, Chih...
NECO
2010
78views more  NECO 2010»
15 years 4 months ago
Hebbian Plasticity and Homeostasis in a Model of Hypercolumn of the Visual Cortex
Neurons in the nervous system display a wide variety of plasticity processes. Among them are covariance based rules and homeostatic plasticity. By themselves, the first ones tend...
R. Rossi Pool, G. Mato
PSYCHNOLOGY
2010
120views more  PSYCHNOLOGY 2010»
15 years 4 months ago
Exploring Self-Presence in Collaborative Virtual Teams
The concept of self-presence provides a framework for understanding how people connect to virtual self-representations on three distinct levels (body, emotions, and identity). The...
Rabindra Ratan, Béatrice S. Hasler
ISBI
2006
IEEE
16 years 7 months ago
A diffusion tensor imaging tractography algorithm based on Navier-Stokes fluid mechanics
We introduce a method for estimating regional connectivity in diffusion tensor magnetic resonance imaging (DT-MRI) based on a fluid mechanics model. We customize the Navier-Stokes...
Nathan S. Hageman, David W. Shattuck, Katherine Na...