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APPROX
2010
Springer
168views Algorithms» more  APPROX 2010»
13 years 11 months ago
Lower Bounds for Local Monotonicity Reconstruction from Transitive-Closure Spanners
Abstract. Given a directed graph G = (V, E) and an integer k 1, a ktransitive-closure-spanner (k-TC-spanner) of G is a directed graph H = (V, EH ) that has (1) the same transitive...
Arnab Bhattacharyya, Elena Grigorescu, Madhav Jha,...
LATA
2010
Springer
13 years 8 months ago
Language-Based Comparison of Petri Nets with Black Tokens, Pure Names and Ordered Data
We apply language theory to compare the expressive power of models that extend Petri nets with features like colored tokens and/or whole place operations. Specifically, we conside...
Fernando Rosa Velardo, Giorgio Delzanno
TIP
2008
208views more  TIP 2008»
13 years 9 months ago
Vision Processing for Realtime 3-D Data Acquisition Based on Coded Structured Light
Structured light vision systems have been successfully used for accurate measurement of 3-D surfaces in computer vision. However, their applications are mainly limited to scanning ...
S. Y. Chen, Y. F. Li, Jianwei Zhang
CCS
2007
ACM
14 years 4 months ago
Managing RBAC states with transitive relations
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
Chaoyi Pang, David P. Hansen, Anthony J. Maeder
SODA
2010
ACM
181views Algorithms» more  SODA 2010»
14 years 7 months ago
On the Cell Probe Complexity of Dynamic Membership
We study the dynamic membership problem, one of the most fundamental data structure problems, in the cell probe model with an arbitrary cell size. We consider a cell probe model e...
KE YI, QIN ZHANG