1595 search results - page 17 / 319 » Spherical Topic Models |
ACL
2009
14 years 7 months ago
2009
Most approaches to topic modeling assume an independence between documents that is frequently violated. We present an topic model that makes use of one or more user-specified grap...
RIAO
2007
14 years 11 months ago
2007
Modeling text with topics is currently a popular research area in both Machine Learning and Information Retrieval (IR). Most of this research has focused on automatic methods thou...
ICIP
2009
IEEE
15 years 10 months ago
2009
IEEE
We present a new statistical shape-from-shading framework for images of unknown illumination. The object (e.g., face) to be reconstructed is described by a parametric model. To de...
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3DPVT
2006
IEEE
15 years 3 months ago
2006
IEEE
The spherical harmonic (SPHARM) description is a powerful surface modeling technique that can model arbitrarily shaped but simply connected three dimensional (3D) objects. Because...
CGF
1998
14 years 9 months ago
1998
In this paper, we present an e cient algorithm for contact determination between spline models. We make use of a new hierarchy, called ShellTree, that comprises of spherical shell...