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yu issn 1450-863 x godina xiii broj 1 / 2011. - horizonti.ekfak.kg.ac.rs

yu issn 1450-863 x godina xiii broj 1 / 2011. - horizonti.ekfak.kg.ac.rs

yu issn 1450-863 x godina xiii broj 1 / 2011. - horizonti.ekfak.kg.ac.rs

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EKONOMSKI HORIZONTI, 2011, 13, (1)<br />

distance. Therefore, the essence of segmentation problem is reflected in finding the<br />

optimal approximation for which the error function is minimal. In f<strong>ac</strong>t, the optimal<br />

segmentation of time series, for the defined paramete<strong>rs</strong> is defined as the<br />

segmentation that results in the lowest segmentation error in relation to other<br />

possible combinations of segmentation. Finding the optimal solution is a complex<br />

iterative process composed of a series of sub-processes, phases, and <strong>ac</strong>tivities that<br />

transform inputs into output elements. Therefore, the time series segmentation<br />

process consists of the following phases:<br />

feature reduction of input time series;<br />

segmentation of extr<strong>ac</strong>ted time series;<br />

selection of the optimal segmentation.<br />

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