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» Geometry and the complexity of matrix multiplication
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COMPGEOM
2000
ACM
15 years 2 months ago
A trace bound for the hereditary discrepancy
Let A be the incidence matrix of a set system with m sets and n points, m ≤ n, and let t = tr M, where M = AT A. Finally, let σ = tr M2 be the sum of squares of the elements of ...
Bernard Chazelle, Alexey Lvov
COMPGEOM
2011
ACM
14 years 1 months ago
Persistence-based clustering in riemannian manifolds
We present a clustering scheme that combines a mode-seeking phase with a cluster merging phase in the corresponding density map. While mode detection is done by a standard graph-b...
Frédéric Chazal, Leonidas J. Guibas,...
103
Voted
AFRIGRAPH
2010
ACM
15 years 1 months ago
Progressive RBF interpolation
Interpolation based on Radial Basis Functions (RBF) is very often used for scattered scalar data interpolation in n-dimensional space in general. RBFs are used for surface reconst...
Václav Skala
ISAAC
2007
Springer
109views Algorithms» more  ISAAC 2007»
15 years 3 months ago
A Sub-cubic Time Algorithm for the k -Maximum Subarray Problem
We design a faster algorithm for the k-maximum sub-array problem under the conventional RAM model, based on distance matrix multiplication (DMM). Specifically we achieve O(n3 log ...
Sung Eun Bae, Tadao Takaoka
WACV
2005
IEEE
15 years 3 months ago
Temporal Synchronization of Video Sequences in Theory and in Practice
— In this work, we present a formalization of the video synchronization problem that exposes new variants of the problem that have been left unexplored to date. We also present a...
Anthony Whitehead, Robert Laganière, Prosen...