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WEA
2010
Springer
330views Algorithms» more  WEA 2010»
14 years 4 months ago
Exact Bipartite Crossing Minimization under Tree Constraints
A tanglegram consists of a pair of (not necessarily binary) trees T1, T2 with leaf sets L1, L2. Additional edges, called tangles, may connect nodes in L1 with those in L2. The task...
Frank Baumann, Christoph Buchheim, Frauke Liers
WEA
2010
Springer
476views Algorithms» more  WEA 2010»
14 years 4 months ago
Fast FPT Algorithms for Computing Rooted Agreement Forests: Theory and Experiments
We improve on earlier FPT algorithms for computing a rooted maximum agreement forest (MAF) or a maximum acyclic agreement forest (MAAF) of a pair of phylogenetic trees. Their sizes...
Chris Whidden, Robert G. Beiko, Norbert Zeh
WEA
2010
Springer
545views Algorithms» more  WEA 2010»
14 years 4 months ago
Experiments on Union-Find Algorithms for the Disjoint-Set Data Structure
Abstract. The disjoint-set data structure is used to maintain a collection of non-overlapping sets of elements from a finite universe. Algorithms that operate on this data structu...
Md. Mostofa Ali Patwary, Jean R. S. Blair, Fredrik...
WEA
2010
Springer
338views Algorithms» more  WEA 2010»
14 years 4 months ago
New Lower Bounds for the Vehicle Routing Problem with Simultaneous Pickup and Delivery
Abstract. This work deals with the Vehicle Routing Problem with Simultaneous Pickup and Delivery. We propose undirected and directed two-commodity flow formulations, which are bas...
Anand Subramanian, Eduardo Uchoa, Luiz Satoru Ochi
WEA
2010
Springer
300views Algorithms» more  WEA 2010»
14 years 4 months ago
Using Bound Sets in Multiobjective Optimization: Application to the Biobjective Binary Knapsack Problem
This paper is devoted to a study of the impact of using bound sets in biobjective optimization. This notion, introduced by Villareal and Karwan [19], has been independently revisit...
Charles Delort, Olivier Spanjaard
SAC
2010
ACM
14 years 4 months ago
Referrer graph: a low-cost web prediction algorithm
This paper presents the Referrer Graph (RG) web prediction algorithm as a low-cost solution to predict next web user accesses. RG is aimed at being used in a real web system with ...
B. de la Ossa, Ana Pont, Julio Sahuquillo, Jos&eac...
DASFAA
2010
IEEE
139views Database» more  DASFAA 2010»
14 years 4 months ago
Highly Scalable Multiprocessing Algorithms for Preference-Based Database Retrieval
Abstract. Until recently algorithms continuously gained free performance improvements due to ever increasing processor speeds. Unfortunately, this development has reached its limit...
Joachim Selke, Christoph Lofi, Wolf-Tilo Balke
STACS
2010
Springer
14 years 4 months ago
The Remote Point Problem, Small Bias Spaces, and Expanding Generator Sets
Using ε-bias spaces over F2, we show that the Remote Point Problem (RPP), introduced by Alon et al [APY09], has an NC2 algorithm (achieving the same parameters as [APY09]). We stu...
Vikraman Arvind, Srikanth Srinivasan
TACAS
2010
Springer
342views Algorithms» more  TACAS 2010»
14 years 4 months ago
SAT Based Bounded Model Checking with Partial Order Semantics for Timed Automata
We study the model checking problem of timed automata based on SAT solving. Our work investigates alternative possibilities for coding the SAT reductions that are based on parallel...
Janusz Malinowski, Peter Niebert