eprintid: 748 rev_number: 8 eprint_status: archive userid: 17 dir: disk0/00/00/07/48 datestamp: 2011-08-01 10:24:49 lastmod: 2011-08-04 07:30:21 status_changed: 2011-08-01 10:24:49 type: book_section metadata_visibility: show item_issues_count: 0 creators_name: Dellino, Gabriella creators_name: Fedele, Mariagrazia creators_name: Meloni, Carlo creators_id: gabriella.dellino@imtlucca.it creators_id: creators_id: title: Dynamic objectives aggregation methods in multi-objective evolutionary optimization ispublished: pub subjects: QA divisions: EIC full_text_status: none abstract: Several approaches for solving multi-objective optimization problems entail a form of scalarization of the objectives. This chapter proposes a study of different dynamic objectives aggregation methods in the context of evolutionary algorithms. These methods are mainly based on both weighted sum aggregations and curvature variations. Since the incorporation of chaotic rules or behaviour in population-based optimization algorithms has been shown to possibly enhance their searching ability, this study proposes to introduce and evaluate also some chaotic rules in the dynamic weights generation process. A comparison analysis is presented on the basis of a campaign of computational experiments on a set of benchmark problems from the literature. date: 2011 date_type: published series: Studies in Computational Intelligence number: 357 publisher: Springer-Verlag pagerange: 85-103 id_number: 10.1007/978-3-642-20958-1_6 refereed: TRUE isbn: 978-3-642-20957-4 book_title: Innovative computing methods and their applications to engineering problems editors_name: Nedjah, Nadia editors_name: Dos Santos Coelho, Leandro editors_name: Mariani, Viviana editors_name: De Macedo Mourelle, Luiza official_url: http://dx.doi.org/10.1007/978-3-642-20958-1_6 citation: Dellino, Gabriella and Fedele, Mariagrazia and Meloni, Carlo Dynamic objectives aggregation methods in multi-objective evolutionary optimization. In: Innovative computing methods and their applications to engineering problems. Studies in Computational Intelligence (357). Springer-Verlag, pp. 85-103. ISBN 978-3-642-20957-4 (2011)