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» On the Convergence of Bound Optimization Algorithms
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WEA
2010
Springer
338views Algorithms» more  WEA 2010»
16 years 1 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
SODA
2010
ACM
144views Algorithms» more  SODA 2010»
15 years 4 months ago
Cell-Probe Lower Bounds for Succinct Partial Sums
The partial sums problem in succinct data structures asks to preprocess an array A[1 . . n] of bits into a data structure using as close to n bits as possible, and answer queries ...
Mihai Patrascu, Emanuele Viola
SPIN
2010
Springer
15 years 4 months ago
Time-Bounded Reachability in Distributed Input/Output Interactive Probabilistic Chains
Abstract. We develop an algorithm to compute timed reachability probabilities for distributed models which are both probabilistic and nondeterministic. To obtain realistic results ...
Georgel Calin, Pepijn Crouzen, Pedro R. D'Argenio,...
CPAIOR
2008
Springer
15 years 8 months ago
Integrating Symmetry, Dominance, and Bound-and-Bound in a Multiple Knapsack Solver
Abstract. The multiple knapsack problem (MKP) is a classical combinatorial optimization problem. A recent algorithm for some classes of the MKP is bin-completion, a bin-oriented, b...
Alex S. Fukunaga
GIS
2006
ACM
16 years 7 months ago
Exploiting a page-level upper bound for multi-type nearest neighbor queries
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
Xiaobin Ma, Shashi Shekhar, Hui Xiong, Pusheng Zha...