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IASTED International Conference on Control and Applications, CA 2012

作者： Bányász, Csilla Keviczky, László Computer and Automation Research Institute of the Hungarian Academy of Sciences Control Engineering Research Group of the HAS Department of Automation and Applied Informatics Kende u 13-17 H-1111 Budapest Hungary

ISBN: (纸本)9780889869226

The control error in a generic two-degree of freedom (TDOF) control system can be decomposed into three major parts: design-, realizability- and modeling-loss. This new decomposition opens useful ways for practical optimization of TDOF systems and helps the construction of new algorithms for robust identification and control. The paper investigates the optimality of the third term.

关键词： Degrees of freedom (mechanics)

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A method for personalized clustering in data intensive web applications

A method for personalized clustering in data intensive web a...

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Joint International Workshop on Adaptivity, Personalization and the Semantic Web, APS'06

作者： Rigou, Maria Sirmakessis, Spiros Tzimas, Giannis Computer Engineering and Informatics Department University of Patras Rio GR-26504 Department of Applied Informatics in Administration and Economy TEI of Messolonghi Nea Ktiria Messolonghi GR-30200 Research Academic Computer Technology Institute Patras University N. Kazantzaki Str. Rio GR-26500

ISBN: (纸本)1595934537

The paper introduces an algorithm for personalized clustering based on a range tree structure, used for identifying all web documents satisfying a set of predefined personal user preferences. The returned documents go through a clustering phase before reaching the end user, thus allowing more effective manipulation and supporting the decision making process. The proposed algorithm demonstrates increased applicability in semantic web settings, since they offer the infrastructure for the explicit declaration of web document attributes and their respective values, thus allowing for more automated retrieval. The proposed algorithm improves the k-means range algorithm, as it uses the already constructed range tree (i.e. during the personalized filtering phase) as the basic structure on which the clustering step is based, applying instead of the k-means, the k-windows algorithm. The total number of parameters used for modeling the web documents dictates the number of dimensions of the Euclidean space representation. The time complexity of the algorithm is O(log d-2n+v), where d is the number of dimensions, n is the total number of web documents and v is the size of the answer. Copyright 2006 ACM.

关键词： Cluster analysis

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Impact of tourist demand, from COVID-19, on the sustainable Inca infrastructure of Ollantaytambo, Urubamba – Cusco – Peru 10

Impact of tourist demand, from COVID-19, on the sustainable ...

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10th IEEE International Conference on Communication Systems and Network Technologies, CSNT 2021

作者： Esenarro, Doris Santos, Jaqueline Teodoro, Christian Pandey, Bishwajeet Rodriguez, Ciro Geographical Environmental Ecoturiism Engineering Universidad Nacional Federico Villarreal Lima Peru Computer Science & Engineering Birla Institute of Applied Science Bhimtal India Faculty of Electronics Informatics and Mechatronics Engineering Universidad Nacional Federico Villarreal Lima Peru

ISBN: (纸本)9780738105239

The objective of the study is to analyze how tourism demand impacts, in the sustainable Inca infrastructure of Ollantaytambo in Cusco during 2020 in COVID-19. Based on bibliographic reviews presented in other research, regulations, and registration of updated data from the last 10 years in the tourism sector, such as the registration of visitors, flights, and others. There was relying on GIS tools to determine its location and accessibility. For its development, there were stages of recognition and description of the study area, characterization of the physical and demographic aspects, analysis of the data collected and tourist demand, and identifying the impacts from COVID-19. It was found that By 2020, a considerable increase in the tourist demand of Ollantaytambo was expected. However, the repercussion caused by the COVID-19 pandemic, the visitor registration in Ollantaytambo fell by 73% compared to 2019 and flights fell by 71, 7%, thus concluding that tourism has had a significant drop, with uncertain prognostic. A change in the current tourist dynamics allows controlling the capacity, respecting the spaces, taking care of the visitor, and generating a greater organization for developing the tourist activity. © 2021 IEEE.

关键词： Tourism

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Applying an OO Modeling Methodology for the Design,Implementation and Testing of a Smart Phone Application

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computer Technology and Application 2012年第2期3卷 105-113页

作者： Evanthia Faliagka Petros Karkoulias Maria Rigou Spiros Sirmakessis Giannis Tzimas Athanasios Tsakalidis Department of Applied Informatics in Management & Economy Technological Institution of Messologhi Department of Computer Engineering and Informatics University of Patras Hellenic Open University Research Academic Computer Technology Institute

Smart phone application development is a very active field for both research and the market domain. This paper investigates the application of ICONIX, a use case driven, object-oriented (OO) analysis and design methodology, for the development of a smart phone personal assistant. It also studies the integration of hand-held haptic devices in daily work activities by evaluating the usability of the application using as basis test scenarios deriving from the identified use cases. The Tennis Coaching Assistant (TCA) is an iPhone application that provides management and scheduling capabilities for tennis coaches and allows a comprehensive overview of the execution of on-court drills and coaching programs. The use of ICONIX made analysis and design keep a sharp focus on user requirements, assured design and coding documentation, fostered an excellent communication among all participants and stake holders and provided the crucial advantage of high reusability in case of implementing the same application for additional smart phone platforms. The paper also describes the usability evaluation methodology applied and documents the results focusing on interaction difficulties and practical obstacles reported by the users as well as suggestions for future versions of the application, which generally received quite positive feedback.

关键词： Tennis coaching assistant ICONIX methodology usability evaluation iPhone application development Objective-C

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Enhanced approach on solving Online Knapsack Problem to improve Load Balancing

Enhanced approach on solving Online Knapsack Problem to impr...

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International Conference on Telecommunications and Signal Processing (TSP)

作者： Marek Galinski Juraj Volko Ivan Kotuliak Institute of Computer Engineering and Applied Informatics Slovak University of Technology Bratislava Slovakia

ISBN: (数字)9781728163765

ISBN: (纸本)9781728163772

Distributing data flows of given bandwidth between various disjoint network paths of given bandwidth capacity, is a non-trivial task when the flows are considered unsplittable, thus we cannot send its packet via different paths, but all packets of a flow must be transmitted within the same path. This problem can be described as a modification of the well-known Knapsack problem. In this paper, we solve the Knapsack problem applied to resource allocation. We try to match items to individual knapsack and to use the maximum capacity of all knapsacks. Packing of items is managed by the QFLA algorithm, which tries to pack the coming item to knapsack with the biggest remaining capacity and if it is impossible then try to move items between knapsacks to make a bigger capacity of some knapsack and to place the item there. It is necessary to work in the real-time so we decided to use the structure of Binary Search Trees. It is used to keep knapsack ordered with its remaining capacity.

关键词： Time complexity Bandwidth Real-time systems Binary search trees Monitoring Approximation algorithms

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Accelerating SDN control plane with GPGPU-based packet classification

Accelerating SDN control plane with GPGPU-based packet class...

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International Conference on Emerging eLearning Technologies and Applications (ICETA)

作者： Martin Baláž Pavol Helebrandt Slovak University of Technology Institute of Computer Engineering and Applied Informatics Bratislava Slovakia

ISBN: (数字)9781728149677

ISBN: (纸本)9781728149684

The increasing number of network traffic and packet processing in Software Defined Networks can be a challenge for the slower handling performance by control plane in software. Parallel processing of network traffic offers a solution to increase the performance of software-based control planes. Integrating large amounts of additional general-purpose CPU cores is relatively costly for achieving a substantial boost in packet classification by parallel processing. In contrast, simplified compute cores in the GPUs of today deliver better performance in execution of massively parallel tasks and offer better scalability. The motivation of this work is to utilize the performance of the GPU computational power for acceleration of control plane. The focus of this paper is packet classification in parallel processing on GPU by applying the principles of parallel programming into existing algorithms.

关键词： Graphics processing units Acceleration Classification algorithms Firewalls (computing) Telecommunication traffic Process control

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computer Vision and Graphics 1

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丛书名： Lecture Notes in computer Science

1000年

作者： Leszek J. Chmielewski Amitava Datta Ryszard Kozera Konrad Wojciechowski

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Numerical Modelling of The System of Doubly Nonlinear Diffusion Equations with Convective Transfer and Damping

Numerical Modelling of The System of Doubly Nonlinear Diffus...

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2024 Cognitive Models and Artificial Intelligence Conference, AICCONF 2024

作者： Sadullaeva, Shakhlo Azimbaevna Anarova, Shahzoda Amanbayevna Khaydarov, Abdugaffor Fayzullayeva, Zarnigor Nazirova, Dilorom Mirkhodzhaeva, Nazhiba departament Intellegent systems Joint Belarusian-Uzbek Intersectoral Institute of Applied Technical Qualifications Tashkent Uzbekistan Department of Convergence of Digital Technologies Computer Engineering Faculty Tashkent University of Information Technologies Tashkent Uzbekistan Department of Applied Mathematics and Computer Analysis National University of Uzbekistan Tashkent Uzbekistan Department of Informatics Computer Engineering Faculty Tashkent University of Information Technologies Tashkent Uzbekistan Department of Applied Mathematics and Computer Analysis NUUz Tashkent Uzbekistan

ISBN: (纸本)9798400716928

Currently, studies of double nonlinear equations and systems of double nonlinear equations representing many processes found in nature are considered relevant and necessary. These equations and systems, as a rule, are nonlinear, degenerate, and have properties that are absent in linear theory and therefore make them quite difficult for both analytical and numerical analysis of the solution. For this reason, great attention is paid to the research of nonlinear mathematical models, the construction of efficient numerical solution schemes and algorithms, and the creation of software using the capabilities of computer technologies. In this article, the mathematical model of the diffusion process in a two-component nonlinear medium under the influence of time-dependent convective transfer and damping is studied. The calculation scheme, algorithm, and software for nonlinear problems were developed. Based on a study of the qualitative properties of a nonlinear mathematical model of a reaction-diffusion system, computer modeling of reaction-diffusion processes was carried out. The developed computational schemes, algorithms, and software packages for solving systems of parabolic equations with double nonlinearity provide high productivity in studying the theory and processes of numerical solutions of such problems. © 2024 ACM.

关键词： Nonlinear equations

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3D Internet for cognitive info-communication

3D Internet for cognitive info-communication

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10th International Symposium of Hungarian Researchers on Computational Intelligence and informatics, CINTI 2009

作者： Baranyi, Péter Solvang, Bjørn Hashimoto, Hideki Korondi, Péter Computer and Automation Research Institute Hungary Department of Industrial Engineering Narvik University College Norway Institute of Industrial Science University of Tokyo Japan Department of Mechatronics Budapest University of Technology and Economics Optics and Applied Informatics Hungary

The paper presents new research directions both for 3D internet and cognitive info-communication. It reviews basic concepts and definitions and gives some "historical" view that helps to understand current i... 详细信息

关键词： 3D internet Cognitive info-communication Robot control

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Analysis of temperature-sensitive on short-term electricity load forecasting 4

Analysis of temperature-sensitive on short-term electricity ...

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2020 IEEE-HYDCON International Conference on engineering in the 4th Industrial Revolution, HYDCON 2020

作者： Tung, Nguyen Xuan Dat, Nguyen Quang Thang, Tran Ngoc Solanki, Vijender Kumar Anh, Nguyen Thi Ngoc Cmc Corporation Hanoi Viet Nam Hanoi University of Science Technology School of Applied Mathematics and Informatics Hanoi Viet Nam Cmr Institute of Technology Dept of Computer Science and Engineering Hyderabad India

ISBN: (纸本)9781728149943

Short-termelectricityloadforecastingisessentialfor the operating energy of a nation. Accuracy of forecasting is important for power operation however it is dependent on weather. This paper focuses on model sensitive analysis temperature on short-term electricity load forecasting. The new models have proposed to analyze the effect of temperature on the electricity load forecasting. In detail, three methods (linear regression, local method and Monte Carlo) are analysis for temperature-sensitive on short-term electricity load forecasting. Then, the proposed models are applied to Vietnam electricity load forecasting. Index Terms-Sensitive Analysis, Electricity load forecasting, Short-term forecasting, Temperature effect, Regression © 2020 IEEE.

关键词： Monte Carlo methods

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