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SIAMCOMP
2012
13 years 6 months ago
An Optimal Dynamic Data Structure for Stabbing-Semigroup Queries
Let S be a set of n intervals in R, and let (S, +) be any commutative semigroup. We assign a weight ω(s) ∈ S to each interval in S. For a point x ∈ R, let S(x) ⊆ S be the se...
Pankaj K. Agarwal, Lars Arge, Haim Kaplan, Eyal Mo...
AIIDE
2008
15 years 6 months ago
Recombinable Game Mechanics for Automated Design Support
Systems that provide automated game-design support-whether fully automated game generators, or tools to assist human designers--must be able to maintain a representation of a game...
Mark J. Nelson, Michael Mateas
ADBIS
2009
Springer
140views Database» more  ADBIS 2009»
15 years 10 months ago
Optimizing Maintenance of Constraint-Based Database Caches
Abstract. Caching data reduces user-perceived latency and often enhances availability in case of server crashes or network failures. DB caching aims at local processing of declarat...
Joachim Klein 0002, Susanne Braun
DEON
2010
Springer
15 years 8 months ago
Relevance, Derogation and Permission
Abstract. We show that a recently developed theory of positive permission based on the notion of derogation is hampered by a triviality result that indicates a problem with the und...
Audun Stolpe
ICDT
1997
ACM
97views Database» more  ICDT 1997»
15 years 8 months ago
Queries and Computation on the Web
The paper introduces a model of the Web as an in nite, semistructured set of objects. We reconsider the classical notions of genericity and computability of queries in this new con...
Serge Abiteboul, Victor Vianu