Piotr Beling
SoftwareX, volume 26, pages 101681, March 2024, doi: https://doi.org/10.1016/j.softx.2024.101681
The paper presents BSuccinct, a collection of software focused on compact and succinct data structures that are both space and time efficient.
Piotr Beling
ACM Journal of Experimental Algorithmics, May 2023, doi: 10.1145/3596453
In the paper we study a fingerprint-based minimal perfect hash function (FMPH for short). We propose an effective method (called FMPHGO) that reduces the size of FMPH, as well as a number of implementation improvements.
Piotr Beling, Piotr Cybula, Andrzej Jaszkiewicz, Przemysław Pełka, Marek Rogalski, Piotr Sielski
22nd European Conference on Evolutionary Computation in Combinatorial Optimisation (EvoStar/EvoCOP), April 2022, Madrid, Spain
We describe a new method for the vehicle routing problems with constraints. Instead of trying to improve the typical metaheuristics used to efficiently solve vehicle routing problems, like large neighborhood search, iterated local search, or evolutionary algorithms, we allow them to explore the deeply infeasible regions of the search space in a controlled way.
Piotr Beling
International Joint Conferences on Artificial Intelligence (IJCAI), Montral, August 19-26, 2021
Presentation of the results included in the paper On pruning search trees of impartial games, published in Artificial Intelligence.
Piotr Beling, Marek Rogalski
Artificial Intelligence, volume 283, pages 103262, March 2020, doi: 10.1016/j.artint.2020.103262
In this paper we study computing Sprague-Grundy values for short impartial games under the normal play convention. We put forward new game-agnostic methods for effective pruning search trees of impartial games.
Piotr Beling, Piotr Cybula, Andrzej Jaszkiewicz, Marek Rogalski, Piotr Sielski
SIGOPT 2020 International Conference on Optimization, March 4-6, 2020, Dortmund, Germany
We propose a new method for the vehicle routing problems with constraints. Instead of trying to improve the typical metaheuristics used to efficiently solve vehicle routing problems, like large neighborhood search, iterated local search, or evolutionary algorithms, we allow them to explore the deeply infeasible regions of the search space in a controlled way.
Piotr Beling, Piotr Cybula, Andrzej Jaszkiewicz, Marek Rogalski, Piotr Sielski
20th Annual Workshop on Metaheuristics, May 15-16, 2019, Oslo, Norway
We propose a new method for the vehicle routing problems with constraints. Instead of trying to improve the typical metaheuristics used to efficiently solve vehicle routing problems, like large neighborhood search, iterated local search, or evolutionary algorithms, we allow them to explore the deeply infeasible regions of the search space in a controlled way.
Piotr Sielski, Piotr Cybula, Marek Rogalski, Piotr Beling, Andrzej Jaszkiewicz
29th European Conference On Operational Research EURO2018, July 8-11, 2018, Valencia, Spain
A new metaheuristic based on infeasible regions exploration and diversity management. A very general (not limited to VRP) meta-meta heuristic that can be used on top of any framework and allows a dramatic performance improvement.
Piotr Cybula, Piotr Beling, Andrzej Jaszkiewicz, Marek Rogalski, Piotr Sielski
24th IFIP World Computer Congress, September 17-21, 2018, Poznań, Poland
New evolutionary algorithms for the VRP problem family.
Piotr Beling
IEEE Transactions on Computational Intelligence and AI in Games, volume 9, number 1, pages 76-87, March 2017, doi: 10.1109/TCIAIG.2015.2505240
In this paper, some improvements of the partition search algorithm are proposed.
Łukasz Piskorski, Jarosław Walczak, Piotr Beling
Elektronika: konstrukcje, technologie, zastosowania, 9/2016, pages 43-46, doi: 10.15199/13.2016.9.10
In this work results of the computer simulation of semiconductor-based vertical-cavity surface-emitting lasers with GaInAsSb/GaSb active region and emission in the 2.6–2.8 μm wavelength range obtained with the use of comprehensive fully self-consistent optical-electrical-thermal -recombination numerical model have been presented.
Łukasz Piskorski, Jarosław Walczak, Magdalena Marciniak, Piotr Beling, Maciej Dems, Włodzimierz Nakwaski
18th International Conference on Transparent Optical Networks (ICTON), 2016, doi: 10.1109/ICTON.2016.7550331
In this paper we present the results of the computer simulation of the GaSb-based multi-quantum-well GaInAsSb/GaSb vertical-cavity surface-emitting lasers (VCSELs) with the emission wavelength above 2.6 μm.
Łukasz Piskorski, Jarosław Walczak, Piotr Beling
XV Krajowa Konferencja Elektroniki, Darłowo, 2016
In this work results of the computer simulation of semiconductor-based vertical-cavity surface-emitting lasers with GaInAsSb/GaSb active region and emission in the 2.6–2.8 μm wavelength range obtained with the use of comprehensive fully self-consistent optical-electrical-thermal -recombination numerical model have been presented.
Piotr Beling
Ph.D. thesis, University of Łódź, Łódź, 2016, in polish
Ph.D. thesis, prepared under the supervision of Prof. Goldstein at the University of Łódź and defended at the Łódź University of Technology in 2006.
Maciej Dems, Piotr Beling, Maciej Kuc, Łukasz Piskorski
VI Workshop on Physics and Technology of Semiconductor Lasers, pages 31-32, Kraków, 2015
Łukasz Piskorski, Jarosław Walczak, Maciej Dems, Piotr Beling, Robert Sarzała
Przegląd Elektroniczny 09/2015, pages 150-153, doi: 10.15199/48.2015.09.39
Maciej Dems, Piotr Beling, Marcin Gębski, Łukasz Piskorski, Maciej Kuc, Michał Wasiak, Magdalena Marciniak, Patrycja Śpiewak, Marta Więckowska, Robert Sarzala
17th International Conference on Transparent Optical Networks (ICTON), Budapest, doi: 10.1109/ICTON.2015.7193495
We present important aspects of modeling these modes with advanced self-consistent software and we will also show some propositions of possible measures that can be taken to increase modal selectivity and reduce number of modes.
Łukasz Piskorski, Robert Sarzala, Jarosław Walczak, Maciej Dems, Piotr Beling, Adam Sokół, Włodzimierz Nakwaski
17th International Conference on Transparent Optical Networks (ICTON), Budapest, 2015, doi: 10.1109/ICTON.2015.7193493
In this work results of a threshold operation of antimonide-based tunnel-junction (TJ) VCSEL have been presented with the aid of the comprehensive fully self-consistent optical-electrical-thermal-recombination numerical model.
Łukasz Piskorski, Jarosław Walczak, Maciej Dems, Piotr Beling, Robert Sarzała
XIV Krajowa Konferencja Elektroniki, Darłówko Wschodnie, poster
In this work results of the threshold operation of antimonide-based vertical-cavity surface-emitting laser have been presented with the aid of the comprehensive fully self-consistent optical-electrical-thermal-recombination numerical model.
Maciej Dems, Piotr Beling, Marcin Gębski, Łukasz Piskorski, Jarosław Walczak, Maciej Kuc, Leszek Frasunkiewicz, Michał Wasiak, Robert Sarzała, Tomasz Czyszanowski
Proc. SPIE 9381, Vertical-Cavity Surface-Emitting Lasers XIX, 93810K (4 III 2015); doi: 10.1117/12.2078321
We show the process of modeling complete physical properties of VCSELs and we present a step-by-step development of its complete multi-physics model, gradually improving its accuracy.
Maciej Dems, Piotr Beling, Marcin Gębski, Łukasz Piskorski, Maciej Kuc, Michał Wasiak, Robert Sarzała
15th International Conference on Transparent Optical Networks (ICTON), Cartagena, Spain, doi: 10.1109/ICTON.2013.6602733
In the talk a new automated and self-consistent approach to modeling photonic devices is presented. Is is based on a new software being developed at Lodz University of Technology and its main idea is automated consideration of mutual interactions between various physical phenomena taking place in photonic devices.
Radosław Zajdel, Justyna Zajdel, Anna Zwolińska, Janusz Śmigielski, Piotr Beling, Tomasz Cegliński, Dariusz Nowak
Archives of Medical Science, Clinical research, vol. 8, no. 5, pp. 892-898, doi: 10.5114/aoms.2012.28891
We compared a subject’s reaction time while performing a test either with a mobile phone ringing or without.
Piotr Beling
Metody Informatyki Stosowanej, no. 3/2011 (28), pages 5-18
The paper presents a review of algorithms to efficiently solve the double dummy problem in the card game of bridge.
Marek Rudnicki, Sławomir Wiak, Piotr Beling
Polish Journal of Environmental Studies 2008, Vol. 17, no. 2A, pp. 73-76
Marek Rudnicki, Sławomir Wiak, Piotr Beling
XII International Conference - System Modelling and Control, Zakopane, Poland
Piotr Beling
Master’s thesis, Łódź University of Technology, Łódź, 2006, in polish
Master’s thesis on programming of logical games. It describes an artificial intelligence engine used in a checkers program.