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10th Brazilian Conference on Intelligent Systems, BRACIS 2021

作者： Dantas, Joao P. A. Costa, Andre N. Geraldo, Diego Maximo, Marcos R. O. A. Yoneyama, Takashi Decision Support Systems Subdivision Institute for Advanced Studies SP Sao Jose dos Campos12.288-001 Brazil Computer Science Division Aeronautics Institute of Technology SP Sao Jose dos Campos12228-900 Brazil Electronic Engineering Division Aeronautics Institute of Technology SP Sao Jose dos Campos12228-900 Brazil

ISBN: (纸本)9783030916985

This work investigates the use of a Deep Neural Network (DNN) to perform an estimation of the Weapon Engagement Zone (WEZ) maximum launch range. The WEZ allows the pilot to identify an airspace in which the available missile has a more significant probability of successfully engaging a particular target, i.e., a hypothetical area surrounding an aircraft in which an adversary is vulnerable to a shot. We propose an approach to determine the WEZ of a given missile using 50,000 simulated launches in variate conditions. These simulations are used to train a DNN that can predict the WEZ when the aircraft finds itself on different firing conditions, with a coefficient of determination of 0.99. It provides another procedure concerning preceding research since it employs a non-discretized model, i.e., it considers all directions of the WEZ at once, which has not been done previously. Additionally, the proposed method uses an experimental design that allows for fewer simulation runs, providing faster model training. © 2021, Springer Nature Switzerland AG.

关键词： Deep neural networks

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Modern Information Technologies in Scientific Research and Educational Activities

arXiv

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arXiv 2024年

作者： Malakhov, Kyrylo Kaverinskiy, Vladislav Ivanova, Liliia Romanyuk, Oleksandr Romaniuk, Oksana Voinova, Svitlana Kotlyk, Sergii Sokolova, Oksana V. M. Glushkov Institute of Cybernetics The National Academy of Sciences of Ukraine Kyiv Ukraine Department of Wear-Resistant and Corrosion-Resistant Powder Construction Materials Frantsevic Institute for Problems in Material Science The National Academy of Sciences of Ukraine Kyiv Ukraine Separated Structural Subdivision «Odesa Technical Professional College of Odesa National University of Technology» Odessa Ukraine Vinnytsia National Technical university Vinnytsia Ukraine Vinnytsia National Technical university Vinnytsia Ukraine Odesa National University of Technology Odessa Ukraine The Institute of Computer Engineering Automation Robotics and Programming Odesa National University of Technology Odessa Ukraine Odesa National University of Technology Odessa Ukraine

This article presents a comprehensive methodology for enhancing the capabilities of conversational AI systems, focusing on ChatGPT, through the integration of ontology-driven structured prompts and meta-learning techniques. The proposed approach, exemplified by the RDWE OntoChatGPT system, demonstrates significant potential for improving productivity and expanding knowledge bases in specific subject domains and languages. By formalizing methods for creating and configuring structured prompts and context ontologies, the system enables ChatGPT to provide specific information using selected contexts, thereby enhancing its performance in handling data across diverse linguistic and domain contexts. Through empirical testing, the study evaluates the system’s effectiveness in providing accurate responses while also highlighting areas for further refinement. The methodology’s adaptability to other conversational AI systems based on large language models underscores its potential for broader application in natural language processing and dialogue systems. Future enhancements aim to refine structured prompts and incorporate additional input data to further improve system performance and accuracy. Overall, this research contributes to advancing the capabilities of conversational AI systems, paving the way for more sophisticated and effective human-computer interactions in various domains. © 2024, CC BY-SA.

关键词： Ontology

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Weapon Engagement Zone Maximum Launch Range Estimation Using a Deep Neural Network

arXiv

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arXiv 2021年

作者： Dantas, Joao P.A. Costa, Andre N. Geraldo, Diego Maximo, Marcos R.O.A. Yoneyama, Takashi Decision Support Systems Subdivision Institute for Advanced Studies Sao Jose dos Campos12.288-001 Brazil Computer Science Division Aeronautics Institute of Technology Sao Jose dos Campos12228-900 Brazil Electronic Engineering Division Aeronautics Institute of Technology Sao Jose dos Campos12228-900 Brazil

关键词： Deep neural networks

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SUPERVISED MACHINE LEARNING FOR EFFECTIVE MISSILE LAUNCH BASED ON BEYOND VISUAL RANGE AIR COMBAT SIMULATIONS

arXiv

引用

arXiv 2022年

作者： Dantas, Joao P.A. Costa, Andre N. Medeiros, Felipe L.L. Geraldo, Diego Maximo, Marcos R.O.A. Yoneyama, Takashi Decision Support Systems Subdivision Institute for Advanced Studies Trevo Cel Av Jose A. A. do Amarante 1 Putim SP Sao Jose dos Campos12228-001 Brazil Computer Science Division Aeronautics Institute of Technology Praca Marechal Eduardo Gomes 50 Vila das Acacias SP Sao Jose dos Campos12228-900 Brazil Electronic Engineering Division Aeronautics Institute of Technology Praca Marechal Eduardo Gomes 50 Vila das Acacias SP Sao Jose dos Campos12228-900 Brazil

This work compares supervised machine learning methods using reliable data from constructive simulations to estimate the most effective moment for launching missiles during air combat. We employed resampling techniques to improve the predictive model, analyzing accuracy, precision, recall, and f1-score. Indeed, we could identify the remarkable performance of the models based on decision trees and the significant sensitivity of other algorithms to resampling techniques. The models with the best f1-score brought values of 0.379 and 0.465 without and with the resampling technique, respectively, which is an increase of 22.69%. Thus, if desirable, resampling techniques can improve the model's recall and f1-score with a slight decline in accuracy and precision. Therefore, through data obtained through constructive simulations, it is possible to develop decision support tools based on machine learning models, which may improve the flight quality in BVR air combat, increasing the effectiveness of offensive missions to hit a particular target. Copyright © 2022, The Authors. All rights reserved.

关键词： Decision trees

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Considerations of quantum key distribution for space applications

Considerations of quantum key distribution for space applica...

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AIAA SPACE Conference and Exposition 2012

作者： Bowes, Benjamin T. Marcus, Leo G. Gasster, Samuel D. Reed, Stephen A. The Aerospace Corporation Electro-Optical Device Evaluation Lab Sensor Systems Subdivision El Segundo CA United States The Aerospace Corporation Information Assurance Technology Dept Computer Science and Technology Subdivision El Segundo CA United States The Aerospace Corporation Computer Systems Research Dept Computer Science and Technology Subdivision El Segundo CA United States

ISBN: (纸本)9781600869402

Quantum Key Distribution (QKD) is a theoretically secure method of generating and distributing cryptographic keys. Its proven security is based on quantum nature of light. While QKD is theoretically secure there may be security deficiencies in real, practical implementations using non-ideal hardware. In this report we discuss security aspects of QKD and possible tests that may provide insight into the security of real QKD implementation of relevance to National Security Space missions. © 2012 by the American Institute of Aeronautics and Astronautics, Inc.

关键词： Quantum cryptography

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A unified load generator based on formal load specification and load transformation 06

A unified load generator based on formal load specification ...

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VALUETOOLS: 1st International Conference on Performance Evaluation Methodologies and Tools

作者： Cong, Jing Wolfinger, Bernd E. College of Computer Science and Technology DongHua University Telecommunications and Computer Networks Subdivision Computer Science Department University of Hamburg

ISBN: (纸本)1595935045

Optimizing the performance of existing networks often demands realistic and valid load generation tools. As the network loads observed may vary significantly over time, there is a strong need to develop flexible and extensible load generators which can reproduce these loads accurately. This paper presents a unified methodology for artificial load generating at different interfaces within the protocol hierarchy of computer networks. A unified load generator which is based on a formal load specification technique and a new approach to load modeling combined with load transformation is established. The methodology of constructing the unified load generator is validated by means of implementing a prototype of such a load generator (UniLoG) which is capable of producing network traffic with different characteristics in a very simple and flexible manner. We present the architectural design, some implementation aspects and investigate the limits of applicability of our prototype. Recent performance evaluation studies with UniLoG indicate that this load generator is a valid tool for QoS studies in computer networks, and can indeed produce some predefined traffic accurately. Copyright 2006 ACM.

关键词： Telecommunication traffic

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An approach to integrating and creating flexible software environments supporting the design of complex systems 91

An approach to integrating and creating flexible software en...

引用

Proceedings of the 23rd conference on Winter simulation

作者： Kirstie L. Bellman Computer Science and Technology SubDivision The Aerospace Corporation Los Angeles California

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Barrier synchronization over multistage interconnection networks 2

Barrier synchronization over multistage interconnection netw...

引用

2nd IEEE Symposium on Parallel and Distributed Processing, SPDP 1990

作者： Lee, Craig A. Computer Science and Technology Subdivision Aerospace Corporation United States

ISBN: (纸本)0818620870

The paper identifies two barrier synchronization techniques that are appropriate for nonuniform memory architectures. The first of these two, the dissemination barrier, is based on a progressive skip-ring of flags. The second, called the reflected-tree barrier, is based on software combining trees. The dissemination barrier is optimal in terms of the number of barrier stages required by the algorithm. The reflected-tree barrier, however, is optimal in the number of remote network operations required for algorithm completion. These two are compared by means of probabilistic simulations up to 4096 nodes and actual execution results up to 90 nodes on a BBN GP-1000. These results show that the reflected-tree barrier is significantly better on 30 nodes or more. © 1990 IEEE.

关键词： Memory architecture

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The modeling issues inherent in testing and evaluating knowledge-based systems

引用

Expert Systems With Applications 1990年第3期1卷 199-215页

作者： Bellman, Kirstie L. Computer Science and Technology Subdivision The Aerospace Corporation Los Angeles CA United States

computer science has always been concerned with the problem of organizing and representing knowledge to make it effectively computable. Expert systems or knowledge-based systems (KBSs)¹ are not dramatic departures from other computer programs. Rather, they bring together and extend a number of the innovations and concerns that characterize modern computer science. However, like the classes of special-application programs before them or like programs written in new languages, they avoid some of the errors with which we are familiar and create new ones that we need to discover. Part of our ability to specify and test such programs adequately depends upon our ability to discover as quickly as possible (a) the kinds of errors and problems that their new constructs, goals, and processing qualities introduce and (b) the methods, analyses, and tests that will allow one to identify these errors and to fix them. © 1990.

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Barrier synchronization over multistage interconnection networks

Barrier synchronization over multistage interconnection netw...

引用

International Symposium on Parallel and Distributed Processing (IPDPS)

作者： C.A. Lee Computer Science and Technology Subdivision Aerospace Corporation

关键词： Multiprocessor interconnection networks computer architecture Concurrent computing computer science Appropriate technology Computational modeling Programming profession Bandwidth Contracts Cloning

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