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International IEEE Conference on Intelligent Systems, IS

作者： R. Reddy S. Selliah V. Bharadwaj Jinqiao Yu S. Kankanahalli S. Reddy Smart Internet Programming Laboratory Concurrent Engineering Research Center Lane Department of Computer Science and Electrical Engineering West Virginia University Morgantown WV USA

Ubiquitous computing and universal network connectivity have given rise to expectations of building a Digital Society, where many aspects of business and social activities may be accomplished by remote participants. Intelligent, context-aware, and workflow-centric collaboration is an essential prerequisite to fulfill that expectation. EkSarva is a framework, which enables realization of such collaborations in diverse domains. This is accomplished by identifying the key concepts and their inter-relationships (dubbed the PPP/SST paradigm), which form the foundation of this framework. The key concepts include: (a) Project, (b) Person, (c) Place, (d) Signal, (e) Situation, and (f) Transcript. This paper describes how these concepts collectively can give rise to an intelligent collaboration environment.

关键词： Collaboration Collaborative work Internet Java computer networks Intelligent networks Signal processing Intelligent structures Intelligent agent Laboratories

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Budget analysis for water reservoirs using an autonomous sensor-equipped mini boat

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Sensor Letters 2015年第7期13卷 543-548页

作者： Tuna, G. Arkoc, O. Potirakis, S.M. Nefzi, B. Department of Computer Programming Trakya University Edirne Turkey School of Technical Sciences Kirklareli University Kirklareli Turkey Department of Electronics Engineering Technological Education Institute of Piraeus Aigaleo - Athens Greece Independent Research Paris France

Water is an inescapable necessity for all forms of life on Earth. Therefore, both man-made reservoirs and natural reservoirs play critical roles for several purposes. Evaporation is an important factor that should be taken into account in the case of surface water reservoirs in hot and dry environments, since it can cause significant water loss. In order to estimate the water budgets of reservoirs, the hydrologists are typically using specifically developed computer models which take into account the effects of evaporation. An important step in this repetitive process is to provide an as accurate as possible calculation of the current water budget of reservoir under study. A novel system for the required water budget calculation is proposed in this paper, providing an automated, fast and accurate solution, requiring no human effort as it is based on an autonomous sensor-equipped mini-boat. First, the autonomous mini boat follows predefined trajectories at a reservoir and builds a bathymetric map (depth map) of it. Then, an onboard computer calculates the water budget of the reservoir. The proposed system is portable;as a result, a single system can periodically serve at several water reservoirs. Following the description of the main components of the proposed system, that is the autonomous navigation system and water budget calculation application, the performance of the navigation subsystem and the system as a whole is evaluated based on simulation studies. Copyright © 2015 American Scientific Publishers All rights reserved.

关键词： Evaporation

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Identification of the Parameter of the Single-Phase Flow Model in the Reservoir with the Power Law of Filtration

Identification of the Parameter of the Single-Phase Flow Mod...

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International Conference on Problems of Cybernetics and Informatics (PCI)

作者： Khanlar Gamzaev Sergey Leonov Sevil Huseynzade Sevinc Kerimova Department of General and Applied Mathematics Azerbaijan State Oil and Industry University Baku Azerbaijan Department of Computer Engineering and Programming National Technical University "Kharkiv Polytechnic Institute" (of Affiliation) Kharkiv Ukraine

The process of unsteady flow of a single-phase liquid in a cylindrical reservoir arising under the elastic mode of reservoir development is considered. To describe this process, a power law of filtration is proposed for a single-phase flow in a porous medium. Within the framework of the proposed model, the task of identifying one parameter of the model characterizing the simulated reservoir system is set. To construct a discrete analog of the inverse problem, the finite difference method is used using an explicit–implicit approximation in time. To solve the resulting system of nonlinear equations, a special representation is proposed that allows reducing the nonlinear system to two independent systems of linear equations. As a result, an explicit formula is obtained for determining the approximate value of the desired reservoir parameter. Based on the proposed method, numerical experiments were carried out for model problems.

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WIP: An Engaging Undergraduate Intro to Model Checking in Software Engineering Using TLA+

arXiv

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arXiv 2024年

作者： Läufer, Konstantin Mertin, Gunda Thiruvathukal, George K. Software and Systems Laboratory Department of Computer Science Loyola University Chicago United States Institute for Software Engineering and Programming Languages University of Lübeck Germany

Background: In this Innovative Practice Work in Progress, we present our initial efforts to integrate formal methods, with a focus on model-checking specifications written in Temporal Logic of Actions (TLA+), into computer science education, targeting undergraduate juniors/seniors and graduate students. Many safety-critical systems and services crucially depend on correct and reliable behavior. Formal methods can play a key role in ensuring correct and safe system behavior, yet remain underutilized in educational and industry contexts. Aims: We aim to (1) qualitatively assess the state of formal methods in computer science programs, (2) construct level-appropriate examples that could be included midway into one’s undergraduate studies, (3) demonstrate how to address successive "failures" through progressively stringent safety and liveness requirements, and (4) establish an ongoing framework for assessing interest and relevance among students. Methods: We detail our pedagogical strategy for embedding TLA+ into an intermediate course on formal methods at our institution. After starting with a refresher on mathematical logic, students specify the rules of simple puzzles in TLA+ and use its included model checker (known as TLC) to find a solution. We gradually escalate to more complex, dynamic, event-driven systems, such as the control logic of a microwave oven, where students will study safety and liveness requirements. We subsequently discuss explicit concurrency, along with thread safety and deadlock avoidance, by modeling bounded counters and buffers. Results: Our initial findings suggest that through careful curricular design and choice of examples and tools, it is possible to inspire and cultivate a new generation of software engineers proficient in formal methods. Conclusions: Our initial efforts suggest that 84% of our students had a positive experience in our formal methods course. Our future plans include a longitudinal analysis within our own institution and

关键词： Students

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COMBAT SYSTEM TEST-FACTORY THROUGH SHIPBOARD

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NAVAL ENGINEERS JOURNAL 1980年第5期92卷 49-58页

作者： GALLAHUE, JS THE AUTHOR is the Department Manager of Combat Systems Engineering at Litton Industries. Data Systems Division. Prior to joining Litton Industries he was associated with UNIVAC. Since joining the Combat Systems Community in 1959. his assignments have included operational computer programming field engineering systems engineering equipment design proposal management test engineering. and programs management. In these varied roles he supported the NTDS R&D Program NTDS Service Test Program Interim Fleet Programming Center Pacific Anti-Submarine Warfare Ship Command and Control Systems SQS-26/NTDS/UBFCS Interface Design DD 963 Class LHA 1 Class. and the DDG 993 Class.

The required configuration management and the necessary control of the Surface Ship Combat System elements demand that they be considered as integrated and tested in accordance with an integrated test plan utilizing an integrated test organization. The sometimes used approach of implementing a combat system test program based upon the individual combat system elements being independent, has proven to be less than satisfactory. Then is no question that some of the early testing at the unit, subsystem, and subprogram levels can be planned and conducted independent of a specific “end-item” combat System. This paper addresses the planning and implementing of combat system test with the emphases being upon the integrated phase of test and primarily the lead ship of a class. Information is presented to facilitate planning and implementing a combat system test program including use of shore facilities and integrating these activities with shipboard activities; when to form the test organization and what types of expertise are required; what are the key technical management tools; the proofing of test documentation; the need for detailed “step-by-step” procedures and traceability of the specified requirements; how to assist Ships Force; planning and stat using the conduct of the tests; integrating computer program and special testing into the test program; and the significance of early decisions on administrative and contractual arrangements.

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Robust initialization of differential algebraic equations

Robust initialization of differential algebraic equations

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1st International Workshop on Equation-Based Object-Oriented Languages and Tools, EOOLT 2007 - In Conjunction with the ECOOP 2007 Conference

作者： Bachmann, Bernhard Aronsson, Peter Fritzson, Peter Dept. Mathematics and Engineering University of Applied Sciences D-33609 Bielefeld Germany MathCore Engineering AB Teknikringen 1F SE-583 30 Linköping Sweden Department of Computer Science PELAB Programming Environments Lab Linköping University SE-581 83 Linköping Sweden

This paper describes a new solution method applied to the problem initializing DAEs using the Modelica language. Modelica is primarily an object- oriented equ-tion-based modeling language that allows specification of mathematical models of complex natural or man-made systems. Major features of Modelica are the multidomain modeling capability and the reusability of model components corresponding to physical objects, which allow to build and simulate highly complex systems. However, initializing such models has been quite cumbersome, since initial equations have to be pro-vided at the system level, where the user needs to know details on the underlying transformation and index-reduction algorithms, that in general are applied to simulate a Modelica model.

关键词： Modeling languages

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Finite groups in which generalized normality is a transitive relation

arXiv

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arXiv 2023年

作者： Safonova, Inna N. Skiba, Alexander N. Department of Applied Mathematics and Computer Science Belarusian State University Minsk220030 Belarus Department of Mathematics and Technologies of Programming Francisk Skorina Gomel State University Gomel246019 Belarus

In this paper, we discuss some well-known results and some open problems of the theory of σ-properties of a group related to the study of generalized *** Codes 20D10, 20D15, 20D30 Copyright © 2023, The Authors. ...

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Universal attitude to the program verification

Universal attitude to the program verification

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2011 5th International Conference on Application of Information and Communication Technologies, AICT 2011

作者： Archvadze, N. Pkhovelishvili, M. Shetsiruly, L. Department of Computer Sciences Faculty of Exact and Natural Sciences I. Javakhishvili Tbilisi State University 2 University st. 0143 Tbilisi Georgia Department of Programming N. Muskhelishvili Computing Mathematic Institute 7 Akuri st. 0193 Tbilisi Georgia Shota Rustaveli State University 35 Ninoshvili st. 6010 Batumi Georgia

ISBN: (纸本)9781612848310

The functional programs are the recursive functions. Therefore, the paper primarily discuss all the forms having the recursive function. For the data structures, such as the lists, the following forms are available: the parallel recursion, inter-recursion, and the recursion of high level. The paper has exposed each form on the LISP language, being the classic functional language as well as the ground for the development of all other languages. The verification for the forms of the recursive functions was adopted with structural and transfinite induction methods. The analysis describe combined induction technique and its algorithm is discussed which is used for verification for such complex functions, arguments of which are again the recursive functions. The discussed verification method of the programs those being offered for the functional languages was applied for the imperative paradigm languages, in particular for Language C and more precisely for C subset (consider that the C program consists of the assigning, optional and cycle operators only). © 2011 IEEE.

关键词： Recursive functions

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Improving tableau deductions in multiple-valued logics

Improving tableau deductions in multiple-valued logics

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International Symposium on Multiple-Valued Logic

作者： N.V. Murray E. Rosenthal Institute for Programming & Logics Department of Computer Science State University of New York Albany Albany NY USA Department of Mathematics University of New Haven West Haven CT USA

Path dissolution is an efficient generalization of the method of analytic tableaux. Both methods feature (in the propositional case) strong completeness, the lack of reliance upon conjunctive normal form (CNF), and the ability to produce a list of essential models (satisfying interpretations) of a formula. Dissolution can speed up every step in a tableau deduction in classical logic. The authors consider means for adapting both techniques to multiple-valued logics, and show that the speed-up theorem applies in this more general setting. These results are pertinent for modeling uncertainty and commonsense reasoning.< >

关键词： Logic programming computer science Uncertainty Mechanical factors Mathematics Inference mechanisms Artificial intelligence Knowledge representation

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Method of Detection of Intrusions Based on Stacking Meta-Algorithm

Method of Detection of Intrusions Based on Stacking Meta-Alg...

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Advanced Technology (KhPIWeek), IEEE KhPI Week on

作者： Svitlana Gavrylenko Vladislav Zozulia Nataliia Khatsko Department of Computer Engineering and Programming National Technical University “Kharkiv Polytechnic Institute” Kharkiv Ukraine Department Information Systems and Technologies National Technical University «Kharkiv Polytechnic Institute» Kharkiv Ukraine

ISBN: (数字)9798350384499

ISBN: (纸本)9798350384505

An analysis of modern computer network intrusion detection systems was carried out. The application of machine and deep learning methods for classification problems has been investigated. The UNSW-NB15 dataset, developed at the Australian Cyber Security Center's (ACCS) Cyber Range Laboratory, contains data on normal network operations and synthetic intrusions. Data pre-processing was performed, including class balancing using the SMOTEENN method and selection of informative features using the Recursive Feature Elimination method. The possibility of using the stacking meta-algorithm to detect intrusions into computer networks has been investigated. A new algorithm for generating packets of raw data is proposed, which generates two sets of training data: one for training basic models, the other for a meta-model. A study of the effectiveness of using Random Forest, ANN, K Nearest Neighbor methods and Support Vector Machine and Random Forest as a decision-making meta-model was conducted. The use of the stacking meta-algorithm with the proposed algorithm for forming packets of output data, as well as basic models and a meta-model, led to a significant improvement in the quality of the model. It was found that, on average, recall and f1 score increased by 55.6% and 37.4%, respectively, compared to raw data and other models.

关键词： Training Support vector machines Computational modeling Stacking Training data Intrusion detection Predictive models Nearest neighbor methods Data models Random forests

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