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CIKM
2005
Springer
14 years 1 months ago
Rotation invariant indexing of shapes and line drawings
We present data representations, distance measures and organizational structures for fast and efficient retrieval of similar shapes in image databases. Using the Hough Transform w...
Michail Vlachos, Zografoula Vagena, Philip S. Yu, ...
CPM
2010
Springer
175views Combinatorics» more  CPM 2010»
14 years 12 days ago
Compression, Indexing, and Retrieval for Massive String Data
The field of compressed data structures seeks to achieve fast search time, but using a compressed representation, ideally requiring less space than that occupied by the original i...
Wing-Kai Hon, Rahul Shah, Jeffrey Scott Vitter
ICPR
2008
IEEE
14 years 2 months ago
Fast model selection for MaxMinOver-based training of support vector machines
OneClassMaxMinOver (OMMO) is a simple incremental algorithm for one-class support vector classification. We propose several enhancements and heuristics for improving model select...
Fabian Timm, Sascha Klement, Thomas Martinetz
SDM
2009
SIAM
170views Data Mining» more  SDM 2009»
14 years 4 months ago
Optimal Distance Bounds on Time-Series Data.
Most data mining operations include an integral search component at their core. For example, the performance of similarity search or classification based on Nearest Neighbors is ...
Michail Vlachos, Philip S. Yu, Suleyman S. Kozat
BIRD
2007
Springer
13 years 11 months ago
Fast Search Algorithms for Position Specific Scoring Matrices
Fast search algorithms for finding good instances of patterns given as position specific scoring matrices are developed, and some empirical results on their performance on DNA sequ...
Cinzia Pizzi, Pasi Rastas, Esko Ukkonen