Jirí Kubalík

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Large software companies have to plan their project portfolio to maximize potential portfolio return and strategic alignment, while balancing various preferences, and considering limited resources. Project portfolio managers need methods and tools to find a good solution for complex project portfolios and multiobjective target criteria efficiently. However,(More)
This paper presents an application of a prototype optimization with evolved improvement steps algorithm (POEMS) to the well-known problem of optimal sorting network design. The POEMS is an iterative algorithm that seeks the best variation of the current solution in each iteration. The variations, also called hypermutations, are evolved by means of an(More)
Recently, a new iterative optimization framework utilizing an evolutionary algorithm called " Prototype Optimization with Evolved iMprovement Steps " (POEMS) was introduced, which showed good performance on hard optimization problems-large instances of TSP and real-valued optimization problems. Especially, on discrete optimization problems such as the TSP(More)
This paper proposes an evolutionary-based iterative local search hyper-heuristic approach called Iterated Search Driven by Evolutionary Algorithm Hyper-Heuristic (ISEA). Two versions of this algorithm, ISEA-chesc and ISEA-adaptive, that differ in the re-initialization scheme are presented. The performance of the two algorithms was experimentally evaluated(More)
The Shortest Common Supersequence (SCS) problem is a well-known hard combinatorial optimization problem that formalizes many real world problems. Recently, an application of the iterative optimization method called Prototype Optimization with Evolved Improvement Steps (POEMS) to the SCS problem has been proposed. The POEMS seeks the best variation of the(More)
The paper presents a successful application of an evolutionary based iterative optimization method called Prototype Optimization with Evolved Improvement Steps (POEMS) to the DNA fragment assembly problem. The DNA fragment assembly problem, known to be NP-hard, is of great importance as it constitutes an important step in the genome project. The POEMS is an(More)