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» On LR(k)-Parsers of Polynomial Size
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FOCS
2010
IEEE
14 years 7 months ago
Stability Yields a PTAS for k-Median and k-Means Clustering
We consider k-median clustering in finite metric spaces and k-means clustering in Euclidean spaces, in the setting where k is part of the input (not a constant). For the k-means pr...
Pranjal Awasthi, Avrim Blum, Or Sheffet
ICTAC
2009
Springer
14 years 7 months ago
A First-Order Policy Language for History-Based Transaction Monitoring
Online trading invariably involves dealings between strangers, so it is important for one party to be able to judge objectively the trustworthiness of the other. In such a setting,...
Andreas Bauer 0002, Rajeev Goré, Alwen Tiu
CP
2011
Springer
13 years 9 months ago
Hierarchically Nested Convex VCSP
We introduce tractable classes of VCSP instances based on convex cost functions. Firstly, we show that the class of VCSP instances satisfying the hierarchically nested convexity pr...
Martin C. Cooper, Stanislav Zivny
IACR
2011
128views more  IACR 2011»
13 years 9 months ago
Sign Modules in Secure Arithmetic Circuits
In this paper, we study the complexity of secure multiparty computation using only the secure arithmetic black-box of a finite field, counting the cost by the number of secure m...
Ching-Hua Yu
ICDT
2012
ACM
251views Database» more  ICDT 2012»
13 years 6 days ago
Computing universal models under guarded TGDs
A universal model of a database D and a set Σ of integrity constraints is a database that extends D, satisfies Σ, and is most general in the sense that it contains sound and co...
André Hernich