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Found 6289 publications

Method for determining direction, velocity and position of a flying ball

A. Nagy

Publication Name: Mechatronics 2013 Recent Technological and Scientific Advances

Publication Date: 2014-01-01

Volume: Unknown

Issue: Unknown

Page Range: 401-408

Description:

This paper proposes an algorithm for an optical measuring system, which is capable of calculating the velocity and position components, the radius and the trajectory of a flying sphere-shape ball. The infrared light-emitting diodes and the IR sensors of the system are arranged in a single plane and create a lattice of infrared light beams. The FPGA based hardware of the system measures the points in time when the light beams are interrupted by the ball. The proposed algorithm uses the measured time-data with the associated positions of the interrupted light beams as input. The practical application such a systems can be measuring ball's velocity in several sports and games. © Springer International Publishing Switzerland 2014.

Open Access: Yes

DOI: 10.1007/978-3-319-02294-9_51

On the asymptotic behavior of spatially implicit models of competition of two species with overcolonization

Éva V.P. Rácz Irma Szimjanovszki János Karsai

Publication Name: Dynamic Systems and Applications

Publication Date: 2014-01-01

Volume: 23

Issue: 4

Page Range: 677-690

Description:

We consider patch-based population dynamics, called metapopulations, and investigate the spread of two species and their competition for habitat areas. Let 0 ≤ p1,p2 denote the proportion (density) of the areas occupied by the species 1 and 2, respectively. Obviously, 0 ≤ p1 + p2 ≤ 1. Both species can locally extinct and colonize empty patches or patches occupied by the other with different rates. Hence the model is P1′ = κ1P1 (1 - P1 - P2) - e1p1p2-C1P1P2 - C2P1P2 P2′ = κ1P1 (1 - P1 - P2) - e1p1p2-C1P1P2 - C2P1P2 where ej are the extinction rates, κ1 are the rates of colonization of empty patches, and species "i" overcolonize "j" with the rate c1(i,j=1,2; i≠j) We investigate the asymptotic stability properties of the equilibria of such systems and we give a complete characterization of the parameter space. We prove that there can appear a globally asymptotically stable coexisting equilibrium. On the other hand, this equilibrium can become unstable and then the exclusive equilibria are only locally asymptotically stable. We have also developed dynamic applications in Wolfram Mathematica to illustrate our results.

Open Access: Yes

DOI: DOI not available

Identification of complex systems through reduced paths using the Spiral Discovery Method

Adam B. Csapo Peter Varlaki Péter Baranyi

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 91-96

Description:

Control theories of cognitive systems are gaining relevance as a result of two driving forces: the desire to create artificial cognitive systems, and the desire to influence or control biological ones. This paper introduces the Spiral Discovery Method (SDM) in a new context, with the goal of facilitating reduced path parameter identification of black-box systems. The approach appeals to human cognitive capabilities in that it reduces the number of possible interaction parameters, and in that it introduces a cyclical structure to the search path which helps in reducing the cognitive load associated with the search process. The proposed approach is demonstrated through a rudimentary parameter identification scenario, and future directions are discussed. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632789

Dynamic fuzzy rule weight optimization for a Fuzzy Based Single-Stroke Character Recognizer

A. Tormási L. T. Kóczy

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 119-124

Description:

In this paper a dynamic fuzzy rule weighting method (DFW) combined with evolutionary optimization are presented for the formerly published Fuzzy Based Single-Stroke Character Recognizer (FUBAR) method. With the introduced rule weighting technique the consequent parts of the if...then... rules are calculated similarly to the original FUBAR method, but a dynamic fuzzy rule weight Wn([0,1]) described as a fuzzy set is applied to it in O n·1/Wn(On) form, where On is the output of the rule. The membership functions of DFW-s are determined by bacterial evolutionary algorithm. The paper compares the results of the proposed new algorithm with other (formerly published) FUBAR algorithms and also with other commercial and academic single-stroke recognizers in terms of recognition accuracy and computational resources needed. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632795

Fuzzy Situational Maps: A new approach in mobile robot cooperation

Claudiu Radu Pozna Áron Ballagi Peter Foldesi L. T. Kóczy

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 287-292

Description:

Intelligent robot cooperation tasks have very complex decision-making and computational processes. Collecting and calculating with a high amount of data is one of the weakest point of such system. In addition all of these it is necessary to process in real-time with limited computational capacity. In this paper we propose some novel algorithms for coping with these problems and give some information about the Fuzzy Situational Maps as a special case of the Fuzzy Signatures. An example takes to the field of warehouse logistics, managing and arranging boxes will be presented. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632828

An ontology-based approach to the automated triggering of coginfocom messages

Adam B. Csapo István Marcell Fülöp Peter Varlaki Péter Baranyi

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 85-89

Description:

The semantic synthesis of intelligent space, emotional-behavioral modeling and cognitive infocommunications is a promising approach in the multidisciplinary field applied for ambient assisted living. The ambient assisted living application can be regarded as a complex cooperation and communication of different kinds of intelligent entities in a well-limited, semi-structured environment. The intelligent space aspect deals with the possible cooperation of intelligent entities as matching between needs and capabilities. The emotional-behavioral modeling handles the internal states and attitudes of the entities. The cognitive info-communications aspect deals with communication situations and processes between the entities. The semantic information framework is intended to provide a synthesis of the different fields in order to unite the represented knowledge in the form of information transfer between the field scopes. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632788

Altered blood glucose dynamics during and after anhepatic phase of liver transplantation: A model-based approach

B. Benyo J. Geoffrey Chase Jozsef Homlok Paul Docherty K. Kovacs

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 65-68

Description:

During liver transplantation (LT) the glucose metabolism is effected by a crucial disturbance. The blood glucose level is extremely hard to control by conventional clinical protocols during this phase. Model based approach can enhance the blood glucose control during the anhepatic phase (absence of liver) and post-anhepatic phase. The physiological constants of validated clinical metabolic model were slightly modified based on previous studies. The model fitting errors and the sufficient capture of the blood glucose (BG) dynamic evinced the applicability of the model. However the sufficient per-patient estimation of endogenous production could more enhance the performance of the model based BG prediction. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632784

Data representation in HOSVD-DCT based domain

András Rövid Peter Varlaki Lászlõ Szeidl

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 103-106

Description:

The paper describes an approach for data representation and processing in the so called HOSVD-DCT based domain which combines the higher order singular value decomposition (HOSVD) with the discrete cosine transformation (DCT). The key idea is to express the multivariate function by an orthonormal set of one variable specific functions and perform DCT on those components which are less significant from the application point of view in order to ensure finer grained processing. It is advantageous also in case of system identification, where the behaviour of the system can be approximated by blending locally identified models. In this case the proposed method can efficiently be applied. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632791

Calibration of Leontief Input/Output table parameters

J. Gati András Bakó Ágnes Szeghegyi László Gáspár

Publication Name: Ines 2013 IEEE 17th International Conference on Intelligent Engineering Systems Proceedings

Publication Date: 2013-12-12

Volume: Unknown

Issue: Unknown

Page Range: 183-186

Description:

Leontief Input/Output tables are widely used for solving various economic problems. This algorithm predicts the effect of changes in an economy sector on others. The same model can also be used for solving traffic forecasting problems. The solution algorithm applied is the so-called RAS one where a certain exponential opposition function is used. A simple and fast algorithm for the determination of the parameters of this opposition function will be presented. © 2013 IEEE.

Open Access: Yes

DOI: 10.1109/INES.2013.6632807