1 code implementation • 20 Sep 2022 • Roberto Rossi
Stochastic Dynamic Programming is a branch of Stochastic Programming that takes a "functional equation" approach to the discovery of optimal policies.
1 code implementation • 6 Aug 2017 • Roberto Rossi, Özgür Akgün, Steven Prestwich, S. Armagan Tarim
In this work we introduce declarative statistics, a suite of declarative modelling tools for statistical analysis.
1 code implementation • 30 May 2017 • Roberto Rossi, Maurizio Tomasella, Belen Martin-Barragan, Tim Embley, Chris Walsh, Matthew Langston
Motivated by a practical case study elicited in the context of a project we recently conducted at Crossrail, we introduce the Dynamic Bowser Routing Problem.
Optimization and Control
no code implementations • 24 Apr 2017 • Steven Prestwich, Roberto Rossi, Armagan Tarim
Reinforcement Learning (RL) extends Dynamic Programming to large stochastic problems, but is problem-specific and has no generic solvers.
no code implementations • 28 Nov 2016 • Roberto Rossi, Özgür Akgün, Steven Prestwich, Armagan Tarim
We show that BIN_COUNTS can be employed to develop a decomposition for the $\chi^2$ test constraint, a new statistical constraint that we introduce in this work.
1 code implementation • 20 Feb 2014 • Roberto Rossi, Steven Prestwich, S. Armagan Tarim
We introduce statistical constraints, a declarative modelling tool that links statistics and constraint programming.
1 code implementation • 23 Jul 2013 • Roberto Rossi, Onur A. Kilic, S. Armagan Tarim
In this paper, we develop mixed integer linear programming models to compute near-optimal policy parameters for the non-stationary stochastic lot sizing problem under Bookbinder and Tan's static-dynamic uncertainty strategy.
Optimization and Control Systems and Control Probability
1 code implementation • 5 Jul 2013 • Roberto Rossi, S. Armagan Tarim, Steven Prestwich, Brahim Hnich
When the random variable of interest is normally distributed, the first order loss function can be easily expressed in terms of the standard normal cumulative distribution and probability density function.
Optimization and Control Probability
no code implementations • 9 Oct 2011 • Roberto Rossi, Brahim Hnich, S. Armagan Tarim, Steven Prestwich
In this work we introduce a novel approach, based on sampling, for finding assignments that are likely to be solutions to stochastic constraint satisfaction problems and constraint optimisation problems.