Radosav Dragica

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Publications (2)0 Total impact

  • Source
    Article: Appliance of Neural Networks in Basketball Scouting
    Ivanković Zdravko, Racković Miloš, Markoski Branko, Radosav Dragica, Ivković Miodrag
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    ABSTRACT: These days, data mining is frequently used as a technology for analysing the hugeamounts of data collected in sport. Basketball is one of most popular sports. Due to itsdynamics, a large number of events happen during a single game. Basketball statisticianshave the task of noting as many of these events as possible, in order to provide for theiranalysis. These data are collected by special software applications. In this paper, we useddata from the First B basketball league for men in Serbia, for seasons 2005/06, 2006/07,2007/08, 2008/09 and 2009/2010. During these five seasons, a total of 890 games wereplayed. These data were analyzed using the feedforward technique in neural networks,which is the most often used technique in analyzing nonlinear sports data. As a final result,we concluded that the most important elements in basketball are two-point shots under thehoop and the defensive rebound, i.e. game "in the paint".
    Acta Polytechnica Hungarica. 01/2010;
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    Article: Computer Adaptive Testing of Student Knowledge
    Sanja Maravić Čisar, Radosav Dragica, Markoski Branko, Pinter Robert, Čisar Petar
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    ABSTRACT: Technological progress, responsible for the declining costs of computers, coupledwith the advancement of computer adaptive software have promoted computer adaptivetesting (CAT) in higher education, offering alternatives to the conventional paper andpencil examinations. The CAT testing process, statistically conducted through ItemResponse Theory, is able to react to the individual examinee, keeping examinees on targetwith test items of an appropriate level of difficulty. The basic goal of adaptive computertests is to ensure the examinee is supplied questions that are challenging enough for thembut not too difficult, which would lead to frustration and confusion. The paper presents aCAT system realized in MATLAB along with its development steps. The application can runfrom a Matlab command window, or it is possible to make a stand-alone application thatdoes not require the installation of Matlab. The questions are written in a .txt file. Thisallows the examiner to easily modify and extend the question database, without specificknowledge of the syntax of any programming language. The only requirement is for theexaminer (but it is only required) to follow a pre-determined format of question writing.The program enables the testing of student knowledge in C++.
    Acta Polytechnica Hungarica. 01/2010;
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