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CCCG
2010
15 years 3 months ago
New variations of the reverse facility location problem
In this paper we consider a natural extension of the socalled reverse facility location problem which was introduced by Cabello et al. [3]. Given a set of n users and a set of m f...
Bhaswar B. Bhattacharya, Subhas C. Nandy
103
Voted
ICDT
2010
ACM
137views Database» more  ICDT 2010»
15 years 19 days ago
A Greedy Algorithm for Constructing a Low-Width Generalized Hypertree Decomposition
We propose a greedy algorithm which, given a hypergraph H and a positive integer k, produces a hypertree decomposition of width less than or equal to 3k −1, or determines that H...
Kaoru Katayama, Tatsuro Okawara, Yuka Itou
ICDE
2005
IEEE
113views Database» more  ICDE 2005»
16 years 3 months ago
On the Optimal Ordering of Maps and Selections under Factorization
The query optimizer of a database system is confronted with two aspects when handling user-defined functions (UDFs) in query predicates: the vast differences in evaluation costs b...
Thomas Neumann, Sven Helmer, Guido Moerkotte
INFOCOM
2007
IEEE
15 years 8 months ago
Iterative Scheduling Algorithms
— The input-queued switch architecture is widely used in Internet routers due to its ability to run at very high line speeds. A central problem in designing an input-queued switc...
Mohsen Bayati, Balaji Prabhakar, Devavrat Shah, Ma...
JDA
2011
90views more  JDA 2011»
14 years 8 months ago
Pattern matching in pseudo real-time
It has recently been shown how to construct online, non-amortised approximate pattern matching algorithms for a class of problems whose distance functions can be classified as be...
Raphaël Clifford, Benjamin Sach