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2023 5th international conference on modeling, Simulation, Optimization and Algorithm, ICMSOA 2023

作者： Zhang, Wangyang Li, Qingwei Xu, Xin Li, Weiqing School of Computer Science and Engineering Nanjing University of Science and Technology Jiangsu Nanjing China The 28th Research Institute of China Electronics Technology Group Corporation Jiangsu Nanjing China

As a complex system with collaborative cooperation and capability emergence, the unmanned swarm system plays an important role in military, agriculture, aerospace and other fields. With the increasing complexity of unmanned swarm systems, traditional modeling methods cannot effectively describe the dynamics of swarm systems. In order to effectively design, use and evaluate unmanned swarm systems, this article conducts modeling and simulation of unmanned swarm systems based on DSDEVS(Dynamic Structure Discrete Event System Specification). Describe the unmanned swarm system from both behavioral and structural aspects. Based on component modeling, the microscopic behaviors of the unmanned platforms that constitute the unmanned swarm are described, and coupling relationships are established to describe the collaborative structure between unmanned platforms. According to the state transfer and event interaction characteristics of the unmanned swarm system, a synchronization mechanism is added to support changes in the swarm structure. This enables the unmanned swarm system to make adaptive structural adjustments according to environmental changes and its own goals during simulation operation, so as to achieve a state of enhanced capabilities and structural stability to complete the task. Finally, the effectiveness and feasibility of this method were verified through a simulation experiment of joint reconnaissance by a UAV swarm. © Published under licence by IOP Publishing Ltd.

关键词： Specifications

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Mathematical Model, Algorithm and computer Code for Analyzing Thin Dielectric Plate Scatterers based on Surface Equivalent Equation and Method of Moments

Mathematical Model, Algorithm and Computer Code for Analyzin...

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2024 Antenna Design and measurement international conference, ADMInC 2024

作者： Dang, Tuan Phuong Alhaj Hasan, Adnan F. Gazizov, Talgat R. Tomsk State University of Control Systems and Radioelectronics Department of Television and Control Tomsk Russia

ISBN: (纸本)9798350390568

Electromagnetic analysis of dielectric structures is of interest to many researchers due to the wide application of new dielectric and composite materials. Therefore, in this paper, we have carried out a comprehensive analysis of thin dielectric plate structure by the method of moments with pulse basis functions based on the surface equivalent theory with approximate integral solution. We developed a mathematical model based on this approach, and developed an algorithm and computer code based on it for modeling thin dielectric plate structure excited by a TM plane wave. The obtained results were compared with previously published ones calculated using the method of moments with pulse basis functions based on the surface equivalent theory with direct integral solution. The good agreement of the results demonstrated the effectiveness of the mathematical model and the code based on it. © 2024 IEEE.

关键词： Method of moments

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2024 IEEE 12th international conference on Intelligent systems, IS 2024 - Proceedings

2024 IEEE 12th International Conference on Intelligent Syste...

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12th IEEE international conference on Intelligent systems, IS 2024

ISBN: (纸本)9798350350982

The proceedings contain 110 papers. The topics discussed include: integrating speech input in educational immersive virtual reality applications: a systematic review;discrete-event co-simulation interface for time-triggered organic computing;imaging in a smart agriculture platform;comparative analysis of machine learning techniques for enhanced predictive modeling in healthcare;exploring graph-based techniques in job recommendation systems;multiple inputs and hybrid deep learning model to identify suspicious posts on social media;analysis and prediction of computer science students’ performance based on core foundational courses using ensemble machine learning methods;efficient news synopsis generation with T5 transformers;and a flexible multi-agent systems task environment for simulating hybrid intelligence.

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Various Peculiarities of Automated Test and measurements in Power Electronics 4

Various Peculiarities of Automated Test and Measurements in ...

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4th international conference on Electrical, computer, Communications and Mechatronics Engineering, ICECCME 2024

作者： Hranov, Tsveti Dekov, Anton Dimitrov, Vladimir Hinov, Nikolay Technical University of Sofia Department of Power Electronics Sofia Bulgaria

ISBN: (纸本)9798350391183

The paper presents aspects for adoption of the automated test and measurement workflow and algorithms related to the study of power electronic converters. Particularly this is related with some peculiarities of various test bench configurations and how this test-bench configurations affect the speed, performance and accuracy of the carried measurements and produced data. First a test without a device is performed to evaluate the measurement instruments and after that the effect of it has been investigated. Then evaluation of the system is done with a converter in the loop, to investigate its' effect on the transient processes. The test is based on a virtual instrument (VI), written in Python programming language with various instrument control and data acquisition and processing libraries. The main idea of this VI is to preform efficiency tests of power converters. It is of critical aspect that the researcher is aware of this peculiarities in order to make accurate conclusions on power converter parameters such as efficiency, load and line regulation, reliability and safety of the devices tested. © 2024 IEEE.

关键词： automated test and measurement conversion efficiency data acquisition power electronics

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Dissecting Cloud Gaming Performance with DECAF 22

Dissecting Cloud Gaming Performance with DECAF

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2022 ACM SIGMETRICS/IFIP PERFORMANCE joint international conference on measurement and modeling of computer systems, SIGMETRICS/PERFORMANCE 2022

作者： Iqbal, Hassan Khalid, Ayesha Shahzad, Muhammad North Carolina State University RaleighNC United States University of California Santa CruzCA United States

ISBN: (纸本)9781450391412

Cloud gaming platforms have witnessed tremendous growth over the past two years, with a number of large Internet companies including Amazon, Facebook, Google, Microsoft, and Nvidia publicly launching their own platforms. However, there is an absence of systematic performance measurement methodologies which can generally be applied. In this paper, we implement DECAF, a methodology to systematically analyze and dissect the performance of cloud gaming platforms across different game genres and game platforms. By applying DECAF, we measure the performance of Google Stadia, Amazon Luna, and Nvidia GeForceNow, and uncover a number of important findings such as processing delays in the cloud comprise majority of the total round trip delay (˜73.54%), the video streams delivered by these platforms are characterized by high variability of bitrate, frame rate, and resolution. Our work has important implications for cloud gaming platforms and opens the door for further research on measurement methodologies for cloud gaming. © 2022 Owner/Author.

关键词： latency cloud gaming performance evaluation network utilization game bot streaming bitrate measurement deep learning

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Simultaneous range and velocity measurement with Doppler single-photon lidar

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Optica 2025年第5期12卷 604-613页

作者： Kitichotkul, Ruangrawee Rapp, Joshua Ma, Yanting Mansour, Hassan Department of Electrical and Computer Engineering Boston University BostonMA02215 United States Mitsubishi Electric Research Laboratories CambridgeMA02139 United States

Single-photon lidar (SPL) can accurately measure distances to targets from extremely weak reflections. However, the conventional wisdom holds that pulsed lidar cannot directly measure velocity, unlike other forms of lidar. We present a detection model for SPL that explicitly includes a target’s radial velocity, manifesting as a Doppler shift in the repetition frequency of the received laser pulse train. We propose an approach called Doppler SPL, comprising a pair of methods for jointly estimating range and velocity. Our first method estimates the Doppler shift via Fourier analysis of the detection times. The second method is a maximum likelihood (ML) estimator that can improve the Fourier estimate and enable joint estimation of the flux from signal and background *** derive the Cramér–Rao bound for the estimation problem and show via simulations that the ML estimator is statistically efficient across diverse acquisition settings. We also demonstrate simultaneous estimation of range with sub-centimeter accuracy and velocity with 0.1 m/s root mean square error for experimental measurements at 50 frames per second (fps), despite a signal-to-background ratio as low as 0.007. Finally, we present an example of a 3D video reconstruction at 120 fps with per-pixel velocity estimates. With the addition of velocimetry, Doppler SPL has the potential to introduce advanced capabilities in applications such as atmospheric monitoring or autonomous navigation. © 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement.

关键词： Velocity measurement

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Factored MDP based Moving Target Defense with Dynamic Threat modeling 23

Factored MDP based Moving Target Defense with Dynamic Threat...

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23rd international conference on Autonomous Agents and Multiagent systems, AAMAS 2024

作者： Bose, Megha Paruchuri, Praveen Kumar, Akshat International Institute of Information Technology Hyderabad India Singapore Management University Bras Basah Singapore

Moving Target Defense (MTD) has emerged as a proactive defense framework to counteract ever-changing cyber threats. Existing approaches often make assumptions about attacker-side knowledge and behavior, potentially resulting in suboptimal defense. This paper introduces a novel MTD approach, leveraging a Markov Decision Process (MDP) model that eliminates the need for prior knowledge about attacker intentions or payoffs. Our framework seamlessly integrates real-time attacker responses into the defender's MDP using a dynamic Bayesian network. We use a factored MDP model to enable a more comprehensive and realistic representation of the system having multiple switchable aspects and also accommodate incremental updates of an attack response predictor as new attack data emerges, ensuring adaptive defense. Empirical evaluations demonstrate the approach's effectiveness in uncertain scenarios with evolving as well as unknown attack landscapes. © 2024 international Foundation for Autonomous Agents and Multiagent systems.

关键词： Markov processes

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Methodology for Metrological Analysis of a Measuring Situation Allowing Consideration of Functional Relationships between Measured Quantities and Examples of its Application 27

Methodology for Metrological Analysis of a Measuring Situati...

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27th international conference on Soft Computing and measurements, SCM 2024

作者： Garanin, Vladimir A. Peter The Great St. Petersburg Polytechnic University Higher School of Computer Technologies and Information Systems St. Petersburg Russia

ISBN: (纸本)9798350363708

The work is devoted to the metrological analysis of situations of joint measurement of the values of several desired quantities, for which such dependencies between them exist and are known a priori that, for at least one of the quantities to be measured, we can obtain one or more independent estimates with their help from the values of other measured quantities. To calculate the limits of possible error in the results of processing such joint measurements, taking into account the mentioned a priori information, a universal technique is proposed that considers the uncertainties of the results of measurements performed and the parameters of the equations describing known relationships. The methodology is developed for cases when the relationships between measurands are expressed as one or more equations. The paper presents examples of its use for performing metrological analysis of typical measuring situations). © 2024 IEEE.

关键词： Uncertainty analysis

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Performance measurement of reading teaching-learning Business Processes: Case of whole-word and syllabic reading methods in primary schools

Performance measurement of reading teaching-learning Busines...

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2023 international conference on ENTERprise Information systems, CENTERIS 2023 - international conference on Project MANagement, ProjMAN 2023 - international conference on Health and Social Care Information systems and Technologies, HCist 2023

作者： Sahli, Amel Mejri, Asma Louati, Aymen Higher Institute of Computer Science of Kef University of Jendouba Jendouba Tunisia Isitcom Hammam Sousse University of Sousse Riadi Laboratory University of Mannouba Tunisia

In the educational filed, Key Performance Indicators (KPIs) aim to provide an opportunity to evaluate the performance of em- ployees, teachers' skills and pedagogy, students' results, learning objects, educational institutions and teaching-learning methods. In this research work, we focus on studying the performance of reading teaching-learning methods, specifically whole-word and syllabic languages learning methods. More precisely, we propose a Business Process Management (BPM) based approach for per- formance measurement of the corresponding business processes of the both methods. We elaborated the reading teaching-learning business processes using Business Process Model and Notation (BPMN), which is a widely adopted standard for formalizing busi- ness process modeling. We prepared a set of KPI for the different activities and for the whole process. We used these KPIs to gauge the performance of each business process and make comparisons between them. To validate our approach, we launched a dedicated questionnaire to primary school teachers in the third grade. By using this questionnaire, we were able to evaluate the overall perfor- mance of each reading process. Our findings indicate that the whole-word method is the most effective teaching method compared to the other. © 2024 The Author(s).

关键词： Administrative data processing

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Beliefs, Shocks, and the Emergence of Roles in Asset Markets: An Agent-Based modeling Approach 23

Beliefs, Shocks, and the Emergence of Roles in Asset Markets...

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23rd international conference on Autonomous Agents and Multiagent systems, AAMAS 2024

作者： Albers, Evan Irfan, Mohammad T. Botsch, Matthew J. Khoury College of Computer Sciences Northeastern University BostonMA United States Department of Computer Science Bowdoin College BrunswickME United States Department of Economics Bowdoin College BrunswickME United States

Although predictive AI models have grown to dominate computational finance, they are often limited in their applications when it comes to studying interventions and explaining behavioral outcomes. Financial economics, on the other hand, has a rich history of analytical approaches to asset-pricing theory, often requiring sweeping assumptions. In this paper, we construct an agent-based model of asset markets that is able to dispense with onerous restrictions on agent behaviors and beliefs, while having analytical validity and providing insights into the functioning of asset markets. In particular, we evaluate our models with respect to several traditional financial economic theories like Tobin's separation theorem and the capital asset pricing model (CAPM). We devise a network representing trades to show the emergence of different roles played by the agents. We study interventions, such as shocks, and explain the outcomes using our model. Finally, we investigate the effects of noise trading and show that noisy agents converge to different equilibrium points due to their differences in beliefs. Put together, this paper presents an agent-based model that can be used to study the effects of heterogeneous beliefs and risks of the agents and shocks to assets at a systemic level, thereby connecting localized agent and asset characteristics to global or collective outcomes. © 2024 international Foundation for Autonomous Agents and Multiagent systems.

关键词： Commerce

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