eprintid: 3546 rev_number: 9 eprint_status: archive userid: 69 dir: disk0/00/00/35/46 datestamp: 2016-10-04 09:31:02 lastmod: 2016-10-04 09:31:46 status_changed: 2016-10-04 09:31:02 type: monograph metadata_visibility: no_search creators_name: Takapoui, Reza creators_name: Mohele, Nicholas creators_name: Boyd, Stephen creators_name: Bemporad, Alberto creators_id: creators_id: creators_id: creators_id: alberto.bemporad@imtlucca.it title: A Simple Effective Heuristic for Embedded Mixed-Integer Quadratic Programming ispublished: pub subjects: QA75 divisions: CSA full_text_status: public monograph_type: working_paper abstract: In this paper we propose a fast optimization algorithm for approximately minimizing convex quadratic functions over the intersection of affine and separable constraints (i.e., the Cartesian product of possibly nonconvex real sets). This problem class contains many NP-hard problems such as mixed-integer quadratic programming. Our heuristic is based on a variation of the alternating direction method of multipliers (ADMM), an algorithm for solving convex optimization problems. We discuss the favorable computational aspects of our algorithm, which allow it to run quickly even on very modest computational platforms such as embedded processors. We give several examples for which an approximate solution should be found very quickly, such as management of a hybrid-electric vehicle drivetrain and control of switched-mode power converters. Our numerical experiments suggest that our method is very effective in finding a feasible point with small objective value; indeed, we find that in many cases, it finds the global solution. date: 2015 date_type: published publisher: arXiv pages: 20 id_number: arXiv:1509.08416 institution: IMT Institute for Advanced Studies Lucca official_url: https://arxiv.org/abs/1509.08416 citation: Takapoui, Reza and Mohele, Nicholas and Boyd, Stephen and Bemporad, Alberto A Simple Effective Heuristic for Embedded Mixed-Integer Quadratic Programming. Working Paper arXiv document_url: http://eprints.imtlucca.it/3546/1/1509.08416v1.pdf