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APPROX
2009
Springer
107views Algorithms» more  APPROX 2009»
14 years 3 months ago
Hierarchy Theorems for Property Testing
Referring to the query complexity of property testing, we prove the existence of a rich hierarchy of corresponding complexity classes. That is, for any relevant function q, we prov...
Oded Goldreich, Michael Krivelevich, Ilan Newman, ...
CIE
2007
Springer
14 years 2 months ago
Hierarchies in Fragments of Monadic Strict NP
We expose a strict hierarchy within monotone monadic strict NP without inequalities (MMSNP), based on the number of second-order monadic quantifiers. We do this by studying a fin...
Barnaby Martin, Florent R. Madelaine
DBPL
2001
Springer
133views Database» more  DBPL 2001»
14 years 29 days ago
A Theory of Spatio-Temporal Database Queries
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
Floris Geerts, Sofie Haesevoets, Bart Kuijpers
AAAI
2007
13 years 10 months ago
A Semantic Importing Approach to Knowledge Reuse from Multiple Ontologies
We present the syntax and semantics of a modular ontology language SHOIQP to support context-specific reuse of knowledge from multiple ontologies. A SHOIQP ontology consists of m...
Jie Bao, Giora Slutzki, Vasant Honavar
STOC
2007
ACM
140views Algorithms» more  STOC 2007»
14 years 8 months ago
On the submodularity of influence in social networks
We prove and extend a conjecture of Kempe, Kleinberg, and Tardos (KKT) on the spread of influence in social networks. A social network can be represented by a directed graph where...
Elchanan Mossel, Sébastien Roch