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International Symposium on Applied Computational Intelligence and informatics ( SACI)

作者： P. Butka J. Pócsova J. Pócs Department of Cybernetics and Artificial Intelligence Faculty of Electrical Engineering and Informatics Technical University of Košice Kosice Slovakia Institute of Control and Informatization of Production Processes BERG Faculty Technical University of Košice Kosice Slovakia

In this paper we describe the possibility for usage of generalized version of one-sided (fuzzy) concept lattices, which represents analytical method from the area of Formal Concept Analysis (FCA), for joining of several simple object-attribute models. The main advantage of the algorithm for (so-called) Generalized One-sided Concept Lattices (GOSCL) is its possibility or ability to work with various attributes types. Sometimes, the analyst needs to join some object-attribute models into one comprehensive structure, he/she is able to do it using generalized FCA approach in two basic ways, which are described within the paper. Both approaches provides isomorphic outputs, but provision of information can be different due to usage of generalized attributes, what leads to benefits like better interpretation and understanding of output models and data.

关键词： Lattices Analytical models Context Data models Context modeling Computational modeling Standards

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Hybrid approach for visualization of documents clusters using GHSOM and sammon projection

Hybrid approach for visualization of documents clusters usin...

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International Symposium on Applied Computational Intelligence and informatics ( SACI)

作者： P. Butka J. Pócsová Faculty of Electrical Engineering and Informatics Department of Cybernetics and Artificial Intelligence Technical University of Košice Kosice Slovakia BERG Faculty Institute of Control and Informatization of Production Processes Technical University of Košice Kosice Slovakia

This paper presents the hybrid approach for visualization of documents sets by the combination of hierarchical clustering method, based on the Growing Hierarchical Self-Organizing Maps algorithm, and Sammon projection. Algorithms based on the self-organizing maps provide robust clustering method suitable for visualization of larger number of documents into the grid-based 2D maps. Sammon projection is nonlinear projection method suitable mostly to visualization of smaller sets of object on (usually 2D) maps based on the projections. Here we have implemented and tested combination of these approaches, where starting set of documents is organized using GHSOM to subsets of similar documents, then for clusters at the end of clustering phase, with smaller number of inputs, Sammon maps are created in order to provide distinction also for documents in these clusters. The method for extraction of characteristic terms based on the information gain analysis was used for description of clusters. Existing library JBOWL was used for implementation of the hybrid algorithm. For testing purposes, the documents in English language were used.

关键词： Vectors Clustering algorithms Stress Visualization Data mining Algorithm design and analysis Adaptation models

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Adaptive controller for Linear System with Input Delay and Output Disturbance

Adaptive Controller for Linear System with Input Delay and O...

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IEEE Annual Conference on Decision and control

作者： Anton A. Pyrkin Alexey A. Bobtsov Department of Engineering Cybernetics Norwegian University of Science and Technology Trondheim NO-7491 Norway Department of Control Systems and Informatics Saint Petersburg National Research University of Information Technologies Mechanics and Optics Kronverkskiy av. 49 Saint Petersburg 197101 Russia

ISBN: (纸本)9781467357159

We present a new stabilization approach for a linear plant with input delay, parametric uncertainties, and an unknown harmonic disturbance affected the input and the output. To solve this problem, we combine the well-known predictor feedback approach with the state observer and adaptive scheme that identifies the frequency of the disturbance. Compared to the existing approaches, the structure of our adaptive scheme is the simplest and the results apply to plants that are unstable, non-minimum phase, and have an arbitrary relative degree.

关键词： adaptive controller Observers disturbance Linear system Output ENTERING line planting (agroforestry) harmonic interference

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Foundations and perspectives of mathability in relation to the CogInfoCom domain

Foundations and perspectives of mathability in relation to t...

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International Conference on Cognitive Infocommunications (CogInfoCom)

作者： Marianna Török Márton József Tóth Alexandra Szöllősi Department of Telecommunications and Media Informatics Budapest University of Technology and Economics (BME) Budapest Hungary Department of Control Engineering Information Technology Budapest University of Technology and Economics (BME) Budapest Hungary Department of Measurement Information Systems Budapest University of Technology and Economics (BME) Budapest Hungary

The primary aim of CogInfoCom is to better understand how natural cognitive processes can effectively coevolve with processes in artificially cognitive systems. In this paper, the background of a new research direction within CogInfoCom - known as “mathability” - is discussed from a research historical perspective. Our goal is to illuminate the key motivations behind mathability from several perspectives, and to clarify more precisely why this direction can be seen as belonging to the research initiatives behind CogInfoCom.

关键词： Educational institutions Conferences Psychology Synthetic aperture sonar Software tools informatics

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Power Regulation of Wind Turbines Using Torque and Pitch control

Power Regulation of Wind Turbines Using Torque and Pitch Con...

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American control Conference

作者： Francesc Pozo Yolanda Vidal Leonardo Acho Ningsu Luo Mauricio Zapateiro Control Dynamics and Applications (CoDAlab) Department of Applied Mathematics III Escola Universitria d'Enginyeria Tcnica Industrial de Barcelona (EUETIB) Universitat Politcnica de Catalunya-BarcelonaTech (UPC) Comte d'Urgell 187 08036 Barcelona S Modal Intervals and Control Engineering Research Group Department of Electrical Engineering Electronics and Automatic Control Institute of Informatics and Applications University of Girona Campus Montilivi P-IV Girona 17071 Spain

ISBN: (纸本)9781479901777

Power generation control in variable-speed variable-pitch horizontal-axis wind turbines operating at high wind speeds is considered in this work. A torque and pitch control strategies are proposed, implemented and validated using the National Renewable Energy Laboratory wind turbine simulator FAST (Fatigue, Aerodynamics, Structures, and Turbulence) code. Numerical results show that the proposed controllers are effective for power regulation. The performance of the contributed controllers is compared to some state-of-the-art methodologies showing its improvements.

关键词： pitch control Wind Energy Conversion Systems Torque power generation control NATIONAL RENEWABLE ENERGY LABORATORY Variable speed wind speed controllers Standing Orders Turbulent Flow controllable pitch Energy sources

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CRM TC covering paper - Robotics trends

CRM TC covering paper - Robotics trends

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Annual Conference of Industrial Electronics Society

作者： Ferenc Tajti Géza Szayer Bence Kovács Balázs Dániel Péter Korondi MTA-ELTE Comparative Ethology Research Group (Group number: 01 031) Hungary Department of Mechatronics Optics and Engineering Informatics Budapest Univ. of Technology and Economics Hungary Productive Programming Methods AS Norway MTA-BME Control Engineering Research Group Hungary

Previously, robots were mainly used by big companies in high volume manufacturing (i.e.: car industry). Industrial robots were perfect to execute procedures simplified to tiny (angular) movements. Today robots have appeared in small and medium enterprises, and they will appear rapidly in non-engineering fields as well, like offices, hospitals, and even in our homes. Robotics grains ground in newer and newer fields and it is too wide to overview it in one paper. This paper tries to summarize the nowadays robotics trends from the point of view of industrial electronics and industrial informatics.

关键词： Service robots Mobile robots Robot sensing systems Programming Market research Artificial intelligence

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Tumor growth model identification and analysis in case of C38 colon adenocarcinoma and B16 melanoma

Tumor growth model identification and analysis in case of C3...

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International Symposium on Applied Computational Intelligence and informatics ( SACI)

作者： Johanna Sápi Dániel András Drexler István Harmati Annamária Szeles Bernadett Kiss Zoltán Sápi Levente Kovács John von Neumann Faculty of Informatics IR Institute Budapest Hungary Department of Control Engineering and Information Technology Budapest University of Technology and Economics Budapest Hungary 1st Department of Pathology and Experimental Cancer Research Semmelweis University Budapest Hungary

Cancer fighting treatments are expanding, and a promising type, targeted molecular therapies have a new approach. The aim of these therapies is not to eliminate the whole tumor, but to control the tumor into a given state and keep it there. Explicit knowledge of tumor growth dynamics and the effects of targeted molecular therapies is crucial in tumor treatment development. We show the results of mouse experiments where tumor growth was investigated in case of C38 colon adenocarcinoma and B16 melanoma. Several curves were fitted and tumor growth dynamics was examined. Three attributes of tumor were measured: tumor volume, tumor mass and vascularization; and tumor growth dynamics was examined. Tumor volume was measured with digital caliper, vascularization was investigated with CD31 antibody immunohistochemistry staining on frozen sections. The relationship between these tumor attributes were examined with linear regression analysis. The dynamics of tumor growth was identified as a second order linear system.

关键词： Colon Malignant tumors Medical treatment Mice Cancer Volume measurement

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Professional Development–Between Reengineering and Continuous Improvement

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Procedia - Social and Behavioral Sciences 2013年 83卷 347-351页

作者： Andreea Cristina Ionica Monica Leba Corina Corbu University of Petrosani Department of Management Str.Universitatii nr.20 332006 Petrosani Romania University of Petrosani Department of System Control and Computer Engineering Str.Universitatii nr.20 332006 Petrosani Romania University of Petrosani Department of Mathematics-Informatics Str.Universitatii nr.20 332006 Petrosani Romania

The Reengineering and continuous improvement are considered extreme approaches in the “life” of an organization. The present studies underline both the major differences and the resemblances between them. The objective of our study consists in bringing the meaning of these two approaches into the personal life development. The orientation towards one of them depends on several individual characteristics. There were applied several tests that deal with personality, the “taste” for risk, self-fulfillment through career, adaptability to changes etc. These tests were implemented in a software system. The results pointed the correspondences between the life stage and the suited personal development model.

关键词： Reengineering TQM Personal life development

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Rejection of Multiharmonic Disturbance Approach Based on Simple Adaptive control Principle

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IFAC Proceedings Volumes 2013年第11期46卷 408-413页

作者： Alexey A. Bobtsov Sergey A. Kolyubin Anton A. Pyrkin Department of Control Systems and Informatics Saint Petersburg National Research University of Information Technologies Mechanics and Optics Kronverkskiy pr. 49 St. Petersburg 197101 Russia Control of Complex Systems Lab. Institute for Problems of Mechanical Engineering RAS Bolshoy pr. V. O. 61 St. Petersburg 199178 Russia Department of Enginnering Cybernetics Norwegian University of Science and Technology NO-7491 Trondheim NORWAY

This paper deals with control algorithms development for output stabilization of the parametrically uncertain linear plant of unknown relative degree. Simple adaptive control paradigm lies in the basis of proposed approach. controller was supplemented with the switching-based scheme of substitution of multiharmonic external disturbance frequencies' estimations that improves controller performance without its significant complication. Stability analysis of the closed-loop hybrid system was conducted and corresponding conditions on switching parameters were stated.

关键词： Simple adaptive control output feedback robust control disturbance rejection switching algorithms

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Wireless Sensor Networks Clock Synchronization with Selective Convergence Rate

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IFAC Proceedings Volumes 2013年第10期46卷 146-151页

作者： Francesco Lamonaca Andrea Gasparri Emanuele Garone Dept. of Informatics Models Electronic and Systems University of Calabria Ponte Pietro Bucci 87040 Rende (CS) Italy Dept. of Engineering University of “Roma Tre” Via della Vasca Navale 79 Roma 00146 Italy Faculty of Applied Science Control and Systems Analysis Department Université Libre de Bruxelles 1050 Brussels Belgium

This paper focuses on the Wireless Sensor Network (WSN) synchronization problem for event-driven measurement applications. The objective is twofold: i) to provide high accuracy in the area where an event is detected, ii) to ensure a long network life time. These two objectives are conflicting. In fact, to increase the synchronization accuracy packets must be exchanged at higher rate, thus affecting the network lifetime. In several interesting applications a trade-off can be achieved based on the observation that, if the goal is to observe a localized event, only the portion of the network surrounding the detected event requires a higher accuracy. The proposed algorithm represents a formalization of this idea. Simulations are done to show the effectiveness of the proposed algorithm.

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