Title: Static and Dynamic Assortment OptimizationSpeaker: Prof. Kalyan TalluriAffiliation: Imperial College London Business SchoolLocation: LT 311 Huxley BuildingTime: 2:00pmAbstract. Assortment Optimization is the problem of offering an optimal assortment from a ground set. Customers choose one of the offered products or decide not to purchase any. The dynamic version of this problem with finite inventories... Read more »

Title: Markov Random Field Optimization in Medical Image AnalysisSpeaker: Dr. Ben GlockerAffiliation: Department of Computing - Imperial College LondonLocation: Room 140 HuxleyTime: 2:00pmAbstract. Markov Random Fields (MRFs) are widely used for modelling image analysis problems, such as segmentation, denoising, and motion estimation. In this presentation, I will provide a brief overview of different applications of... Read more »

Title: Bayesian Optimization Speaker: Dr. Mike OsborneAffiliation: Department of Engineering Science - University of Oxford Location: Room 145 HuxleyTime: 2:00pmAbstract. About the speaker.

Title: McCormick Relaxations: Convergence Rate and Extension to Multivariate Outer FunctionsSpeaker: Prof. Alexander MitsosAffiliation: Laboratory for Process Systems Engineering - RWTH Aachen UniversityLocation: CPSE seminar room (C615 Roderic Hill)Time: 3:00pmAbstract. Optimization is a widely used tool in process systems engineering, but often the optimization problems have multiple suboptimal local minima. Deterministic global optimization algorithms can... Read more »

Title: Worst-case complexity of nonlinear optimization: Where do we stand?Speaker: Prof. Philippe TointAffiliation: Department of Mathematics – Université de NamurLocation: CPSE seminar room (C615 Roderic Hill)Time: 11:00amAbstract. We review the available results on the evaluation complexity of algorithms using Lipschitz-continuous Hessians for the approximate solution of nonlinear and potentially nonconvex optimization problems. Here, evaluation complexity... Read more »

Title: Formal Proofs for Nonlinear OptimizationSpeaker: Dr. Victor MagronAffiliation: Department of Electrical and Electronic Engineering - Imperial College LondonLocation: Room 217 Huxley BuildingTime: 2:00pmAbstract. We present a formally verified global optimization framework. Given a semialgebraic or transcendental function f and a compact semialgebraic domain K, we use the nonlinear maxplus template approximation algorithm to provide... Read more »

Title: Supply Chain Optimization - from strategic to operational decision levelsSpeaker: Prof. Ana Barbosa-PovoaAffiliation: University of LisbonLocation: CPSE seminar room (C615 Roderic Hill)Time: 3:00pmAbstract. Supply Chains are complex systems that involve challenging problems. Such problems require suitable answers so as to guarantee efficiency and responsiveness improvements of the involved systems. When answering to such problems... Read more »

Title: Bifurcation Analysis Using Complete Search Methods Speaker: Dr. Mario Eduardo VillanuevaAffiliation: Centre for Process Systems Engineering at Imperial CollegeLocation: Room 217 Huxley BuildingTime: 2:00pmAbstract. When studying a non-linear dynamic system it is important to locate and characterise its equilibrium manifold and its bifurcation regions within a pre-specified computational domain. Except for very few simple... Read more »

Title: The Complexity of Primal-Dual Fixed Point Methods for Ridge RegressionSpeaker: Prof. Ademir RibeiroAffiliation: Department of Mathematics - Federal University of ParanaLocation: Room 218 Huxley BuildingTime: 2:00pmAbstract. We study the ridge regression (L2 regularized least squares) problem and its dual, which is also a ridge regression problem. We observe that the optimality conditions can be... Read more »

Title: Are Targets for Renewable Portfolio Standards Too Low? - The Impact of Market Structure on Energy Policy? (joint work with Makoto Tanaka and Yihsu Chen)Speaker: Dr Afzal SiddiquiAffiliation: Department of Statistical Science - University College LondonLocation: Room 217 Huxley BuildingTime: 2:00pmAbstract. In order to limit climate change from greenhouse gas emissions, governments have introduced... Read more »