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ICASSP
2011
IEEE
14 years 10 months ago
Stability analysis of multiplicative update algorithms for non-negative matrix factorization
Multiplicative update algorithms have encountered a great success to solve optimization problems with non-negativity constraints, such as the famous non-negative matrix factorizat...
Roland Badeau, Nancy Bertin, Emmanuel Vincent
CPHYSICS
2011
271views Education» more  CPHYSICS 2011»
14 years 10 months ago
A dedicated algorithm for calculating ground states for the triangular random bond Ising model
In the presented article we present an algorithm for the computation of ground state spin configurations for the 2d random bond Ising model on planar triangular lattice graphs. T...
O. Melchert, A. K. Hartmann
DLOG
2011
14 years 10 months ago
The Complexity of Conjunctive Query Abduction in DL-Lite
In order to meet usability requirements, most logic-based applications provide explanation facilities for reasoning services. This holds also for DLs, where research focused on the...
Diego Calvanese, Magdalena Ortiz, Mantas Simkus, G...
CISIS
2011
IEEE
14 years 6 months ago
Agent-based Pickup and Delivery Planning: The Learnable Evolution Model Approach
—The Dynamic Vehicle Routing Problem (DVRP) is an optimization problem in which agents deliver orders that are not known in advance to the routing. Partial solutions need to be a...
Janusz Wojtusiak, Tobias Warden, Otthein Herzog
CONSTRAINTS
2007
89views more  CONSTRAINTS 2007»
15 years 6 months ago
Cardinal: A Finite Sets Constraint Solver
In this paper we present Cardinal, a general finite sets constraint solver just made publicly available in ECLiPSe Prolog, suitable for combinatorial problem solving by exploiting ...
Francisco Azevedo