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arXiv 2025年

作者： Pitschi, Phillip Sagmeister, Simon Goblirsch, Sven Lienkamp, Markus Lohmann, Boris Technical University of Munich School of Engineering & Design Department of Engineering Physics and Computation Institute of Automatic Control Germany Technical University of Munich School of Engineering & Design Department of Mobility Systems Engineering Institute of Automotive Technology Germany

Usually, a controller for path- or trajectory tracking is employed in autonomous driving. Typically, these controllers generate high-level commands like longitudinal acceleration or force. However, vehicles with combustion engines expect different actuation inputs. This paper proposes a longitudinal control concept that translates high-level trajectory-tracking commands to the required low-level vehicle commands such as throttle, brake pressure and a desired gear. We chose a modular structure to easily integrate different trajectory-tracking control algorithms and vehicles. The proposed control concept enables a close tracking of the high-level control command. An anti-lock braking system, traction control, and brake warmup control also ensure a safe operation during real-world tests. We provide experimental validation of our concept using real world data with longitudinal accelerations reaching up to 25 sm2 . The experiments were conducted using the EAV24 racecar during the first event of the Abu Dhabi Autonomous Racing League on the Yas Marina Formula 1 Circuit. Copyright © 2025, The Authors. All rights reserved.

关键词： Traction control

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A numerical toy model of Langevin dynamics provides real-time visualization of colloidal microdroplet evaporation

arXiv

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arXiv 2025年

作者： Derkachov, Gennadiy Jakubczyk, Tomasz Alikhanzadeh-Arani, Sima Wojciechowski, Tomasz Jakubczyk, Daniel Institute of Physics Polish Academy of Sciences al. Lotników 32/46 WarsawPL-02668 Poland Institute of Control and Computation Engineering Warsaw University of Technology ul. Nowowiejska 15/19 WarsawPL-00665 Poland Frahangian University P.O. Box 14665-889 Tehran Iran International Research Centre MagTop al. Lotników 32/46 WarsawPL-02668 Poland

We have developed and tested a simplified but versatile numerical model of nanoparticles' aggregation using Langevin dynamics. The model is particularly capable of simulating aggregation in an evaporating (or condensing) microdroplet. It runs on a graphics processing unit (GPU), which makes it sufficiently fast for real-time conceptualization tasks. We have verified the results of modeling against the findings from two types of experiments we conducted in electrodynamic traps. Firstly, our model helped us to elucidate the phenomenon of scattering 'revival', often observed during the evaporation of composite microdroplets. Further on, we were able to mimic our experiments, in which the microdroplets were dried up to form nanoparticle (NP) aggregates, and then soft-landed. Thus we could compare model predictions with SEM imaging. The model was tested for up to 2.5×105 nanoparticles of several coexisting types. Several types of interactions can be accounted for: inter-particle: Lennard-Jones and Coulomb;external: dispersion medium viscosity, centrifugal force, gravity, surface tension, and interface movement. Brownian motion of nanoparticles can be freely controlled. The core program is accompanied by scripts extracting statistical NP aggregates properties in post-processing - fractal dimension and radial distribution functions. The codes are made available in public repositories. Several diverse evolution scenarios are presented. © 2025, CC BY.

关键词： Brownian movement

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Multiple Criteria Games-Theory and Applications

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Journal of Systems engineering and Electronics 1995年第2期6卷 65-81页

作者： Andrzej P. Wierzbicki(institute of control and computation engineering, Warsaw University of Technology,Nowowiejska 15 / 19, 00--665 Warsaw, Poland.) Institute of Control and Computation Engineering Warsaw University of Technology Nowowiejska 15 / 1900-665 Warsaw Poland

After a reivew of basic concepts in multiple criteria optimization, the paper presents a characterization of noncooperative equilibria in multiple criteria games in normal form either by weighted sums or by. order-consistent achievement scalarizing functions, for convex and nonconvex cases. Possible applications of multiple criteria games and such characterizations of their equilibria are indicated. The analysis of multiple criteria games might be especially useful when studying reasons of possible conflict escalation processes and ways of preventing them.

关键词： Multiple criteria optimization Multiple criteria games Noncooperative solutions,Conflict escalation and prevention

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AutoFE-Pointer: Auto-weighted feature extractor based on pointer network for DNA methylation prediction

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International Journal of Biological Macromolecules 2025年 311卷 143668页

作者： Feng, Xin Xin, Ruihao Wu, Jiezhang Zheng, Jiaxin Wang, Chenyan Yu, Cuinan School of Science Jilin Institute of Chemical Technology Jilin130000 China State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of Chemistry Jilin University Changchun130012 China College of Information and Control Engineering Jilin Institute of Chemical Technology Jilin130000 China College of Computer Science and Technology Key Laboratory of Symbolic Computation and Knowledge Engineering of Ministry of Education Jilin University Changchun130012 China Civil Aviation General Hospital Beijing100123 China School of Engineering Westlake University Zhejiang Hangzhou310030 China Hunan Bojii Life Technology Co. Ltd. Hunan Province Changsha410000 China

DNA methylation is a critical epigenetic modification that plays a central role in gene regulation, cellular differentiation, and the development of various diseases, including cancers. Aberrant methylation patterns have emerged as both biomarkers and mechanistic drivers in pathogenesis, underscoring the urgent need for precise and efficient predictive tools. Although some deep learning techniques have advanced methylation prediction, most existing models are trained independently on single-species datasets. This species-specific approach limits efficiency because each model can only handle one dataset at a time, often at the expense of predictive performance. Additionally, the state-of-the-art deep learning models tend to have enormous parameter counts and computational overhead, making them impractical for integration into local offline software applications. To overcome these challenges, we propose AutoFE-Pointer, a lightweight and novel framework that harnesses an improved softened pointer network to dynamically extract and weight features from diverse DNA sequences. AutoFE-Pointer is designed to simultaneously process 17 different benchmark datasets spanning multiple species, achieving superior performance compared to models that are trained individually on single-species data. In doing so, it not only offers state-of-the-art predictive accuracy and robust cross-species generalization but also significantly reduces computational demands, facilitating its deployment in local offline environments. This breakthrough represents a significant advancement in the field of epigenetic modeling and computational biology. © 2025

关键词： Enterprise software

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Portfolio optimization with reward-risk ratio measure based on the conditional value-At-risk

Portfolio optimization with reward-risk ratio measure based ...

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2015 World Congress on engineering and Computer Science, WCECS 2015

作者： Ogryczak, Wlodzimierz Przyluski, Michal Śliwiński, Tomasz Institute of Control and Computation Engineering Warsaw University of Technology Poland

ISBN: (纸本)9789881404725

In several problems of portfolio selection the reward-risk ratio criterion is optimized to search for a risky portfolio offering the maximum increase of the mean return, compared to the risk-free investment opportunities. We analyze such a model with the CVaR type risk measure. Exactly the deviation type of risk measure must be used, i.e. The so-called conditional drawdown measure. We analyze both the theoretical properties (SSD consistency) and the computational complexity (LP models).

关键词： Linear programming

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Probing a solid electrolyte interphase layer with sub-nanometer pores using redox mediators

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eScience 2025年第3期5卷

作者： Lv, Ximei Liu, Jie Li, Chenkun Yu, Fengjiao Xiao, Dengji Zhao, Shulin Wu, Yuping Chen, Yuhui State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University Nanjing 211816 China Institute of Energy Technologies IET-3: Theory and Computation of Energy Materials Forschungszentrum Jülich GmbH Jülich 52425 Germany Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and Environment Southeast University Nanjing 210096 China

The solid electrolyte interphase (SEI) layer is crucial for lithium-ion batteries and has a significant impact on the electrochemical performance of negative electrodes, particularly for conversion-type materials with large volume changes and metallic lithium anode. However, the SEI layer has not yet been well understood. In this work, we used redox mediators of various sizes to probe the SEI layer that formed in carbonate-based electrolytes. The SEI layer has diffusion channels that allow the mediators smaller than benzoquinone (5.7 Å) to pass, suggesting that lithium ions have to partially de-solvate to pass through. Additionally, due to partial desolvation, the diffusion coefficient in the diffusion channels was higher than that in the bulk electrolytes. Both lithium salts and solvents influenced the size and areal density of channels. Herein, we aim to enhance comprehension of SEI structure and provide a method to study porous SEI layers using mediators, which can be extended to other electrochemical systems. © 2024 The Authors

关键词： Electrochemical impedance spectroscopy Porous structure Redox mediator SEI layer

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control of discretised sub-class of 2D systems 35

Control of discretised sub-class of 2D systems

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第35届中国控制会议

作者： SULIKOWSKI Bartlomiej GALKOWSKI Krzysztof Institute of Control and Computation Engineering University of Zielona Góra

ISBN: (纸本)9789881563910

Two-dimensional(2D) systems are characterized by two independent information propagation directions. They can be applied as well to analyze spatially interconnected systems, as for example ladder circuits. Then the time and the cell number are two independent variables. This paper shows new results in modeling and control of such systems.

关键词： 2D systems control Spatially interconnected systems Ladder circuits

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Approximations in data mining 1st

Approximations in data mining

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1st International Conference on Rough Sets and Current Trends in Computing, RSCTC 1998

作者： Traczyk, Wieslaw Institute of Control and Computation Engineering Warsaw University of Technology Poland

ISBN: (纸本)3540646558

There are many different ways of discovering knowledge in large databases but in all of them the same problem arises: how rigorously the results of discovery answer the purpose? In the paper we discuss some sources of vagueness in data mining, and present non-statistical method of inaccuracy evaluation. © Springer-Verlag Berlin Heidelberg 1998.

关键词： Data mining

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Fixed point method of step-size estimation for on-line neural network training

Fixed point method of step-size estimation for on-line neura...

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2010 6th IEEE World Congress on computational Intelligence, WCCI 2010 - 2010 International Joint Conference on Neural Networks, IJCNN 2010

作者： Wawrzyński, Pawel Institute of Control and Computation Engineering Warsaw University of Technology Poland

ISBN: (纸本)9781424469178

This paper considers on-line training of feadforward neural networks. Training examples are only available sampled randomly from a given generator. What emerges in this setting is the problem of step-sizes, or learning rates, adaptation. A scheme of determining step-sizes is introduced here that satisfies the following requirements: (i) it does not need any auxiliary problem-dependent parameters, (ii) it does not assume any particular loss function that the training process is intended to minimize, (iii) it makes the learning process stable and efficient. An experimental study with the 2D Gabor function approximation is presented. © 2010 IEEE.

关键词： Reinforcement learning

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Dynamic Matrix control Algorithm Implementation on ARM Cortex-R5 MCU: Performance Analysis

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IFAC-PapersOnLine 2018年第6期51卷 330-335页

作者： Czerwiski, Kamil Lawryczuk, Maciej Institute of Control and Computation Engineering Warsaw University of Technology ul. Nowowiejska 15/19 Warsaw00-665 Poland

This paper describes implementation of the Dynamic Matrix control (DMC) algorithm using a microcontroller with the ARM Cortex R5 core. Two versions of the DMC algorithm are considered: the classical one and the simplified one. It is shown that the latter one needs much shorter calculation time, but give the same control quality. Moreover, the influence of tuning parameters of the DMC algorithm on the calculation time is studied experimentally. The obtained implementation of the DMC algorithm can be used in very fast embedded system, with short sampling periods. Results of real experiment are demonstrated for Hercules RM57L843 LaunchPad board from Texas Instruments. © 2018

关键词： Embedded systems ARM processors control theory controllers Microcontrollers Microprocessor chips Model predictive control Real time systems Calculation time Dynamic matrix control Dynamic matrix control algorithms Performance analysis Real time embedded systems Short sampling period Texas Instruments Tuning parameter

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