Sciweavers

10608 search results - page 83 / 2122
» Complexity of O'Hara's Algorithm
Sort
View
ICDAR
2007
IEEE
14 years 4 months ago
On Segmentation of Documents in Complex Scripts
Document image segmentation algorithms primarily aim at separating text and graphics in presence of complex layouts. However, for many non-Latin scripts, segmentation becomes a ch...
K. S. Kumar, S. Kumar, C. V. Jawahar
WADS
2007
Springer
115views Algorithms» more  WADS 2007»
14 years 4 months ago
Alpha-Beta Witness Complexes
Building on the work of Martinetz, Schulten and de Silva, Carlsson, we introduce a 2-parameter family of witness complexes and algorithms for constructing them. This family can be ...
Dominique Attali, Herbert Edelsbrunner, John Harer...
STOC
2004
ACM
153views Algorithms» more  STOC 2004»
14 years 10 months ago
Quantum and classical query complexities of local search are polynomially related
Let f be an integer valued function on a finite set V . We call an undirected graph G(V, E) a neighborhood structure for f. The problem of finding a local minimum for f can be phr...
Miklos Santha, Mario Szegedy
ER
2007
Springer
103views Database» more  ER 2007»
14 years 4 months ago
Ensuring the Semantic Correctness of Complex Regions
Ensuring the semantic and topological correctness of spatial data is an important requirement in geographical information systems and spatial database systems in order to preserve ...
Mark McKenney, Alejandro Pauly, Reasey Praing, Mar...
STOC
1996
ACM
101views Algorithms» more  STOC 1996»
14 years 2 months ago
The Space Complexity of Approximating the Frequency Moments
The frequency moments of a sequence containing mi elements of type i, for 1 i n, are the numbers Fk = n i=1 mk i . We consider the space complexity of randomized algorithms that...
Noga Alon, Yossi Matias, Mario Szegedy