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COMPGEOM
2010
ACM
14 years 19 days ago
Orthogonal range reporting: query lower bounds, optimal structures in 3-d, and higher-dimensional improvements
Orthogonal range reporting is the problem of storing a set of n points in d-dimensional space, such that the k points in an axis-orthogonal query box can be reported efficiently. ...
Peyman Afshani, Lars Arge, Kasper Dalgaard Larsen
ICALP
2009
Springer
14 years 7 months ago
Improved Bounds for Flow Shop Scheduling
We resolve an open question raised by Feige & Scheideler by showing that the best known approximation algorithm for flow shops is essentially tight with respect to the used low...
Monaldo Mastrolilli, Ola Svensson
SAT
2005
Springer
124views Hardware» more  SAT 2005»
14 years 1 months ago
An Improved Upper Bound for SAT
We give a randomized algorithm for testing satisfiability of Boolean formulas in conjunctive normal form with no restriction on clause length. Its running time is at most 2n(1−1...
Evgeny Dantsin, Alexander Wolpert
SAGT
2010
Springer
223views Game Theory» more  SAGT 2010»
13 years 6 months ago
Improved Lower Bounds on the Price of Stability of Undirected Network Design Games
Abstract. Bounding the price of stability of undirected network design games with fair cost allocation is a challenging open problem in the Algorithmic Game Theory research agenda....
Vittorio Bilò, Ioannis Caragiannis, Angelo ...
WABI
2007
Springer
133views Bioinformatics» more  WABI 2007»
14 years 1 months ago
RNA Folding Including Pseudoknots: A New Parameterized Algorithm and Improved Upper Bound
Predicting the secondary structure of an RNA sequence is an important problem in structural bioinformatics. The general RNA folding problem, where the sequence to be folded may con...
Chunmei Liu, Yinglei Song, Louis W. Shapiro