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PR
2007
125views more  PR 2007»
13 years 7 months ago
Calculating geometric properties of three-dimensional objects from the spherical harmonic representation
The volume, location of the centroid, and second order moments of a threedimensional star-shaped object are determined in terms of the spherical harmonic coefficients of its bound...
Artemy Baxansky, Nahum Kiryati
ICASSP
2009
IEEE
13 years 5 months ago
Log-likelihood ratio clipping in MIMO-BICM systems: Information geometric analysis and impact on system capacity
The clipping of log-likelihood ratios (LLRs) in soft demodulators for multiple-input multiple-output (MIMO) systems with bitinterleaved coded modulation (BICM) was recently observ...
Stefan Schwandter, Peter Fertl, Clemens Novak, Ger...
DAGSTUHL
2010
13 years 9 months ago
Modeling and Visualization of Cardiovascular Systems
Modeling complex organs, such as the human heart, requires a detailed understanding of the geometric and mechanical properties of that organ. Similarly, the model is only as accur...
Thomas Wischgoll
COMPGEOM
2009
ACM
14 years 2 months ago
Near-linear approximation algorithms for geometric hitting sets
Given a set system (X, R), the hitting set problem is to find a smallest-cardinality subset H ⊆ X, with the property that each range R ∈ R has a non-empty intersection with H...
Pankaj K. Agarwal, Esther Ezra, Micha Sharir
SIAMCOMP
1998
86views more  SIAMCOMP 1998»
13 years 7 months ago
Exact Learning of Discretized Geometric Concepts
We first present an algorithm that uses membership and equivalence queries to exactly identify a discretized geometric concept defined by the union of m axis-parallel boxes in d-...
Nader H. Bshouty, Paul W. Goldberg, Sally A. Goldm...