Data-driven interactive multiobjective optimization using cluster based surrogate in discrete decision space
Authors
Date
2018Copyright
This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.
Tutkielma esittää klusteripohjaisen sijaismallin diskreetin päätöksentekoavaruuden dimension pienentämiseksi ja lineaaristen kokonaislukuoptimointitehtävien yksinkertaistamiseksi. Sijaismalli on suunnattu erityisesti datapohjaisten päätöksenteko-ongelmien interaktiiviseen ratkaisemiseen, sillä se yhdistää sijaismallin interaktiota
helpottavan vaikutuksen ja interaktiivisen NIMBUS menetelmän hyvän
suorituskyvyn sijaismallin tuloavaruudessa. Kehitettyä sijaismallia
ja metodia myös sovellettiin monitavoitteiseen metsätalousongelmaan
hyvin tuloksin. This thesis presents a cluster based surrogate model approach for reducing dimension of discrete decision space and so for simplifying integer linear optimization problems. The model is especially aimed for solving data-driven decision making problems interactively, as the surrogate makes interaction more seamless and the interactive NIMBUS method manages well within the product space of the surrogate. The developed cluster based surrogate and method were also applied for a Boreal Forest management problem with promising results.
Keywords
surrogate metamodel clustering cluster based synchronous NIMBUS multiobjective decision making interactive optimization sijaismalli metamalli surrogaatti klusterointi klusteripohjainen synkroninen NIMBUS monitavoitteinen päätöksenteko interaktiivinen päätöksenteko optimointi monitavoiteoptimointi matemaattinen optimointi multi-objective optimisation optimisation mathematical optimisation
Metadata
Show full item recordCollections
- Pro gradu -tutkielmat [29556]
Related items
Showing items with similar title or keywords.
-
Data-Driven Interactive Multiobjective Optimization Using a Cluster-Based Surrogate in a Discrete Decision Space
Hakanen, Jussi; Malmberg, Jose; Ojalehto, Vesa; Eyvindson, Kyle (Springer, 2019)In this paper, a clustering based surrogate is proposed to be used in offline data-driven multiobjective optimization to reduce the size of the optimization problem in the decision space. The surrogate is combined with an ... -
An interactive surrogate-based method for computationally expensive multiobjective optimisation
Tabatabaei, Mohammad; Hartikainen, Markus; Sindhya, Karthik; Hakanen, Jussi; Miettinen, Kaisa (Palgrave Macmillan Ltd., 2019)Many disciplines involve computationally expensive multiobjective optimisation problems. Surrogate-based methods are commonly used in the literature to alleviate the computational cost. In this paper, we develop an interactive ... -
Flexible data driven inventory management with interactive multiobjective lot size optimization
Heikkinen, Risto; Sipilä, Juha; Ojalehto, Vesa; Miettinen, Kaisa (Inderscience Publishers, 2023)We study data-driven decision support and formalise a path from data to decision making. We focus on lot sizing in inventory management with stochastic demand and propose an interactive multi-objective optimisation approach. ... -
Interactive data-driven multiobjective optimization of metallurgical properties of microalloyed steels using the DESDEO framework
Saini, Bhupinder Singh; Chakrabarti, Debalay; Chakraborti, Nirupam; Shavazipour, Babooshka; Miettinen, Kaisa (Elsevier BV, 2023)Solving real-life data-driven multiobjective optimization problems involves many complicated challenges. These challenges include preprocessing the data, modelling the objective functions, getting a meaningful formulation ... -
Data-driven Interactive Multiobjective Optimization : Challenges and a Generic Multi-agent Architecture
Afsar, Bekir; Podkopaev, Dmitry; Miettinen, Kaisa (Elsevier BV, 2020)In many decision making problems, a decision maker needs computer support in finding a good compromise between multiple conflicting objectives that need to be optimized simultaneously. Interactive multiobjective optimization ...