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Hough transformation for finding straight line segments is well known in digital image processing. In this paper we have used Hough, houghline and houghpeaks functions for creating a new 4- dimensional parameter space named h_space for extracting rectangles in digital image. These parameters are coordinates of the center of a rectangle (intersection of diagonals), angle that the shorter edge makes...
There are two main fields in the business activity of electric power industry: electric energy distribution and its collection. The first field includes the building and maintenance of electric power facilities according to the needs of consumers with the appropriate strategy of electric energy distribution in the situations of extremely poor and brisk demand. The second field, electric energy collection...
In this paper I present an environment and algorithm for lazy (incremental) construction of multigram profile models as part of IR (information retrieval) training and exploitation processes. N-grams are traditionally used for natural language text models, but they can be also successfully used for domain independent document classification. I am demonstrating results of a prototype utility which...
Pseudo-integral of the interval-valued functions based on the pseudo-operations has been introduced. Some basic properties, as well as, some limit properties of the pseudo-integral of interval-valued functions have been investigated.
This paper gives the fuzzy velocity control of a mobile robot motion in an unknown environment with obstacles. The model of the vehicle has two driving wheels and the angular velocities of the two wheels are independently controlled. When the vehicle is moving towards the target and the sensors detect an obstacle, an avoiding strategy and velocity control are necessary. We proposed a fuzzy reactive...
The probe is a major component of CMM. New high precision designs are available. In the corresponding literature little information can be found about the 3D calibration of these probes. The paper gives an overview of the novel probe designs, outlines the construction of a 3D calibration system, discusses itpsilas error sources, their contribution to the measuring uncertainty. A facility has been...
By the development of communication in computer systems, development and application of Internet mediated teaching systems in the communication intensive higher education one of the main concerns in applied informatics. As these applications became more complex and by increased demand for better utilization of computer technology, direction of development changed to replace the conventional documentation...
This paper deals with fuzzy logic control of induction generator in wind turbine application in order to extract maximum power from the wind. Fully-controlled wind turbine consists of induction generator and back-to-back converter which is used to maximize the power output and enhance system performance. The advantages of using fuzzy controller are universal control algorithm, fast converging, parameter...
A new approach to rate-control of visual communication is presented. This method is based on a recently introduced rate-distortion function for image compression systems. We show that this rate-distortion approach can be used to develop an efficient coding algorithm, suitable for wireless and Internet transmission. We demonstrate this approach for subband transform coding using the discrete cosine...
In this paper, we propose a knowledge sharing platform based on the technology of ontology and agent, in order to solve the issues in the knowledge sharing activities within organizations. Based on the analysis of literature, the issues within current organizational knowledge sharing activities and knowledge sharing technologies are explored. By means of the literature analysis, we present a new definition...
In this paper mathematical model of optimal agricultural production plan is derived and applied on small farm which is located in west Vojvodina. In order to construct more realistic model of optimal crop distribution and deal with crop rotation, the special case of integer optimization, the knapsack problem is used. It is assumed that farmer on one plot sows only one type of crop.
Software systems change during the whole life cycle. Support for changes that origin in development process is provided by wide range of tools and techniques. Changes that appear during the software maintenance phase usually are driven by customers. These changes, specified as change requests, are usually submitted via developerspsila web site. After initial specification and submission these change...
In this paper, gender related statistical data for computer science students at the Department of Mathematics and Informatics, within the Faculty of Science of the University of Novi Sad will be analyzed. Success of both freshmen students and students of the last year of studies will be compared. Comparison will deal with two types of computer science courses: two of technical nature - programming...
The author analyses the role of insolvency to the new ldquolaw on insolvency in transition and economic stabilizationrdquo in our country. It is stated that there are a huge number of enterprises heavily in debt where most part of resources is blocked. To subsidize these enterprises require many budget funds, with no effects. The author considers possibilities to solve the status of these enterprises...
Assuming homogenity of the underlying statistics, interspike interval probability density functions recorded from behaving macaque monkeys are determined with a special statistical fitting method. The nature of the problem needed robust statistics approach, the results were validated with the Kolmogorov-Smirnov test. The results suggest that there is no single/universal interspike interval probability...
The Central-East European region have undergone a radical change in the last 15 years. All of the political changes in regime also aimed at stabilizing the economies of the countries. Methods and short- and long-term results were different but each countries of the region strongly focuses on developing the sector of tourism, as they all realize the development opportunities of the service industry...
Here we generalize the model of automatic speech recognition (ASR) based on the maximization of products of probability likelihoods of each corresponding speech frame and phoneme by applying strict t-norms. We formulate it as a minimization problem in terms of the logarithmic generator of strict t-norms and investigate the experimental solutions for piecewise linear logarithmic generators. The performance...
In the paper a software implementation of fuzzy decision-making in medicine is described. Known models of fuzzy multi-criteria decision making are applied in two situations: the first, with all features of the same importance and without interaction between criteria, and the second, with interacting criteria. The practical usage of both approaches is shown in a medical application in determining the...
Copulas enabling to characterize the joint distributions of random vectors by means of the corresponding one-dimensional marginals are presented and discussed. Some properties of copulas and several construction methods, especially when a partial knowledge is available, are included. Possible applications are indicated.
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