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» Hierarchical approximation and localization
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ICAPR
2009
Springer
14 years 5 months ago
Hierarchical Local Maps for Robust Approximate Nearest Neighbor Computation
In this paper, we propose a novel method for fast nearest neighbors retrieval in non-Euclidean and non-metric spaces. We organize the data into a hierarchical fashion that preserv...
Pratyush Bhatt, Anoop M. Namboodiri
VC
1998
56views more  VC 1998»
13 years 10 months ago
Hierarchical approximation and localization
Remco C. Veltkamp
TALG
2010
109views more  TALG 2010»
13 years 9 months ago
Facility location with hierarchical facility costs
We introduce a facility location problem with submodular facility cost functions, and give an O(log n) approximation algorithm for it. Then we focus on a special case of submodula...
Zoya Svitkina, Éva Tardos
FGR
2002
IEEE
140views Biometrics» more  FGR 2002»
14 years 3 months ago
Hierarchical Wavelet Networks for Facial Feature Localization
We present a technique for facial feature localization using a two-level hierarchical wavelet network. The first level wavelet network is used for face matching, and yields an af...
Rogério Schmidt Feris, Jim Gemmell, Kentaro...
CVPR
2004
IEEE
15 years 26 days ago
Wavelet-Based Hierarchical Surface Approximation from Height Fields
This paper presents a novel hierarchical approach to triangular mesh generation from height fields. A waveletbased multiresolution analysis technique is used to estimate local sha...
Sang-Mook Lee, Daniel L. Schmoldt