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A feature based technique for face recognition using Mexican hat wavelets

A feature based technique for face recognition using Mexican...

引用

IEEE Pacific Rim Conference on Communications, computers and Signal Processing

作者： Steven Gillan Pan Agathoklis Mohamed Seddeik Yasein Department of Electrical and Computer Engineering University of Victoria Victoria BC Canada Faculty of Computers and Informatics Suez-Canal University Ismailia Egypt

ISBN: (纸本)9781424445608

A new features based algorithm for face recognition is proposed. The algorithm is based on locating features on faces and finding the correspondence of these features between faces using an algorithm which is adopted from the works of Yasein and Agathoklis. The algorithm is using feature extraction through filtering with Mexican-hat wavelets and detection of correspondence of the feature points through comparison of Zernike moments. The transformation of the feature points between images is obtained using an iterative weighted least-squares algorithm which allows to eliminate outliers. The face recognition is based on the residual error between the feature points after transformation. The performance of the proposed method is evaluated using experiments with a face database and compared against existing techniques for face recognition. The results of experiments with varying pose and illumination conditions show that the proposed method performs well compared to existing feature based face recognition techniques.

关键词： Face recognition Lighting Feature extraction Iterative algorithms Filtering Face detection Robustness Principal component analysis Image registration informatics

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Security architecture based on multilayer distributed intrusion detection system

Security architecture based on multilayer distributed intrus...

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International Symposium on Applied Computational Intelligence and informatics ( SACI)

作者： Martin Chovanec Liberios Vokorkos Jan Perhac Institute of Computer Technology Technical University of Kosice Kosice Slovakia Faculty of Electrical engineering and informatics Technical University of Kosice Kosice Slovakia

The architecture of designed intrusion detection system is based on two layer hybrid model for event detection. System function is based on analysis parts of network flow in a real communication and offers processing of this data in a real time. The core of the first layer are detection sensors, which offer base processing based on statistical methods with direct interconnection to countermeasure module. Performance and accuracy of designed system is secured with central distributed processing, in which is used detection based on particular event description, which foregoing intrusion. The architecture presented in this article is a result of teamwork of Department of computer and informatics and Institute of computer technologies of Technical University of Kosice. Its partial results are processed in author's master thesis and research within the APPV-0073-07 project.

关键词： Nonhomogeneous media Intrusion detection Event detection Communication system security Data security Real time systems Statistical analysis Distributed processing computer architecture Teamwork

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On the way towards model for background of decisions on engineering objects in PLM

On the way towards model for background of decisions on engi...

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International Conference on Computational Cybernetics (ICCC)

作者： László Horváth Imre J. Rudas Gerhard Hancke John von Neumann faculty of Informatics Budapest Tech Hungary Department of Electrical Electronic and Computer Engineering University of Pretoria South Africa

This paper introduces a method for better communication between collaborating engineers and between engineer and entity generation processes at the definition of products in modeling systems. The authors recognized the importance of correct human-computer- human communication by using of product model as a special medium for engineers. In order to establish a product model that is appropriate for this purpose, they integrated all influencing effects on a product in an influencing space. In order to record content of influencing by engineers and other influencing persons, authorities, etc., the currently prevailing information based product model is completed by representation of information content. This paper emphasizes some relevant issues of information content. Definition of this contents starts from modeling of human intent. Intent model is consists of information about the owner of an intent, characteristics of that intent, and representation of content of intent in some form of knowledge. Information content is organized in the interconnected intent, behavior, and decision spaces. In a hierarchical system, intent space is at the highest and decision space is at the lowest level hierarchy assuring human intent based automation of decision making on engineering object in an improved product model.

关键词： Humans Decision making Recycling Context modeling Cybernetics informatics International collaboration Hierarchical systems Automation Content management

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Image complexity matrix for pattern and target recognition, based on Fourier spectrum analysis

Image complexity matrix for pattern and target recognition, ...

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Optical Pattern Recognition XX

作者： Perju, Veacheslav Casasent, David Mardare, Igor Technical University of Moldova Department of Informatization Stefan Mare Av. 168 Chisinau MD-2012 Moldova Carnegie Mellon University Department of Electrical and Computer Engineering Pittsburgh PA 15213 United States Free International University of Moldova Faculty of Informatics and Engineering Vlaicu Pircalab Str. 52 Chisinau MD-2004 Moldova

ISBN: (纸本)9780819476067

It is proposed an image complexity matrix (IC), based on the analysis of the Fourier spectrum of the input image. It is described the method of IC calculation. It was carried out the determination of the necessary number of the image's pixels dependent on the image complexity. It is presented the optical - electronic processor for IC determination. It is analyzed the structure of the optical electronic computer system for pattern and target recognition. © 2009 SPIE.

关键词： Spectrum analysis

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Semantic analytical reports: A framework for post-processing data mining results

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18th International Symposium on Methodologies for Intelligent Systems, ISMIS 2009

作者： Kliegr, Tomáš Ralbovský, Martin Svátek, Vojtech Šimunek, Milan Jirkovský, Vojtech Nemrava, Jan Zemánek, Jan University of Economics Prague Faculty of Informatics and Statistics Nám. Winstona Churchilla 4 130 67 Praha 3 Czech Republic Czech Technical University Dept. of Computer Science and Engineering Karlovo nam. 13 121 35 Praha 2 Czech Republic

ISBN: (纸本)3642041248

Intelligent post-processing of data mining results can provide valuable knowledge. In this paper we present the first systematic solution to post-processing that is based on semantic web technologies. The framework input is constituted by PMML and description of background knowledge. Using the Topic Maps formalism, a generic Data Mining ontology and Association Rule Mining ontology were designed. Through combination of a content management system and a semantic knowledge base, the analyst can enter new pieces of information or interlink existing ones. The information is accessible either via semi-automatically authored textual analytical reports or via semantic querying. A prototype implementation of the framework for generalized association rules is demonstrated on the PKDD'99 Financial Data Set. © 2009 Springer Berlin Heidelberg.

关键词： Data mining

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Systematic analysis of the electric power and magnetic energy for linear electric and magnetic circuits with modifiable parameters

Systematic analysis of the electric power and magnetic energ...

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Eurocon

作者： Horia Andrei Fanica Spinei Ion Caciula Paul C. Andrei Control Systems and Computer Engineering Electrical Engineering Bucharest Polytechnic Institute Romania Radiating Systems Group Department of Applied Physics Faculty of Physics University of Bucharest Romania Romania Control Systems and Applied Informatics Valahia University of Targoviste Romania Department of Applied Informatics for Electrical Engineering Faculty of Electrical Engineering University of Bucharest Romania

The paper presents a new systematic analysis method in order to estimate the total absorbed power and energy in linear electric and magnetic circuits with modifiable parameters. The relation between the variation in one or all the resistances and reluctances of the networks and the variation of total absorbed power and energy are discussed using the Lagrange's method. For the considered applications the results are obtained with Mathematica and Maple useful for establishing the variation limits of absorbed power and energy.

关键词： Magnetic analysis Magnetic circuits Lagrangian functions Switching circuits H infinity control Stationary state Nonlinear systems

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Towards semantic tagging in collaborative environments

Towards semantic tagging in collaborative environments

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International Conference on Digital Signal Processing (DSP)

作者： K. Chandramouli T. Kliegr V. Svatek E. Izquierdo School of Electronic Engineering and Computer Science Queen Mary University of London UK Department of Information and Knowledge Engineering Faculty of Informatics and Statistics University of Economics Prague Czech Republic

Tags pose an efficient and effective way of organization of resources, but they are not always available. A technique called SCM/THD investigated in this paper extracts entities from free-text annotations, and using the Lin similarity measure over the WordNet thesaurus classifies them into a controlled vocabulary of tags. Hypernyms extracted from Wikipedia are used to map uncommon entities to Wordnet synsets. In collaborative environments, users can assign multiple annotations to the same object hence increasing the amount of information available. Assuming that the semantics of the annotations overlap, this redundancy can be exploited to generate higher quality tags. A preliminary experiment presented in the paper evaluates the consistency and quality of tags generated from multiple annotations of the same image. The results obtained on an experimental dataset comprising of 62 annotations from four annotators show that the accuracy of a simple majority vote surpasses the average accuracy obtained through assessing the annotations individually by 18%. A moderate-strength correlation has been found between the quality of generated tags and the consistency of annotations.

关键词： Tagging Collaboration Collaborative work Knowledge engineering Wikipedia Taxonomy Ontologies computer science informatics Statistics

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Discontinuous stabilizer of the first order chained system using polar-like coordinates transformation

Discontinuous stabilizer of the first order chained system u...

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European Control Conference (ECC)

作者： Dariusz Pazderski Krzysztof Kozłowski József K. Tar Faculty of Computer Science and Management Poznan University of Technology Poznan Poland John von Neumann Faculty of Informatics Institute of Intelligent Engineering Systems Budapest Tech. Budapest Hungary

This paper considers problem of stabilization of the first order nonholonomic chained system using polar-like coordinates. A control method considered here can be regarded as an extension of control solution based on polar coordinate transformation in order to apply it to other system than unicycle. Presented control strategy gives possibility to obtain fast convergence of regulation errors without oscillatory behavior. A robustness of the controller in the neighborhood of the desired point is ensured via additional non-smooth techniques. In order to verify usefulness of developed control strategy simulation results are given.

关键词： Control systems Transient analysis Europe Convergence Robustness Robot kinematics

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DeCoMAS: An Architecture for Supplementing MAS with Systemic Models of Decentralized Agent Coordination

DeCoMAS: An Architecture for Supplementing MAS with Systemic...

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IEEE WIC ACM International Conference on Web Intelligence (WI)

作者： Jan Sudeikat Wolfgang Renz Distributed Systems and Information Systems (VSIS) Group Department of Informatics Faculty of Mathematics Informatics and Natural Sciences University of Hamburg Hamburg Germany Multimedia Systems Laboratory (MMLab) Faculty of Engineering and Computer Science Hamburg University of Applied Sciences Hamburg Germany

The systematic conception of decentralized and self-adaptive software systems, as demanded for the run-time management of today’s distributed, multi-tier software architectures, is an active research area. Here, we discuss a coordination architecture that facilitates the enactment of externalized coordination models in Multi-agent Systems (MAS). Coordination is configured by systemic models, i.e. structures of agent-behaviour interdependencies that denote the mutual influences of agent activities. The systematic, iterative application development is supported by a non-intrusive integration approach that enables developers to adjust application dynamics by complementing agent-based applications with systemic coordination models.

关键词： Application software Intelligent agent Software systems Feedback loop computer architecture Multiagent systems Software engineering informatics Collaborative software Conferences

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A contribution to solution for the problem of human controlled object model definition

A contribution to solution for the problem of human controll...

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International Symposium on Applied Machine Intelligence and informatics (SAMI)

作者： Laszlo Horvath Imre J. Rudas Gerhard Hancke Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Budapest Tech Budapest Hungary Department of Electrical Electronic and Computer Engineering University of Pretoria Pretoria South Africa

Virtual systems for definition, analysis and application of product models are widely applied in development, production, and application of products. These systems provide outstanding performance in description of product information. At the same time, any modification of earlier decided product information needs contribution from the original decision maker. Otherwise new decision is to be made while the original intent is not available. The authors conceptualized a new modeling method where human intent is stored in the product model as content of modeled information. This content is applied at new decision making. Some aspect of this new modeling is introduced in this paper starting with an introduction to model based product development. Following this, a method is shown for tracking affected engineering object chains by using of change affect zone (CAZ) definition. Next, the authors propose an information content extension to product model. They studied current information based product models, recognized conflict as caused by application of information based product modeling, and decided to complete the information based product model by information content based model. The conflict is in the communication between information based modeling procedures and information content based human. The proposed modeling can be implemented as an extension to functionality and model of professional product lifecycle management (PLM) systems.

关键词： Humans Product development Data mining Application software Decision making Communication system control Automatic control informatics Intelligent systems Systems engineering and theory

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