Izboljšave Gaussovih mešanih modelov za klasifikacijo na področju obratovalne trdnosti : doktorsko delo

(UL)

Izboljšave Gaussovih mešanih modelov za klasifikacijo na področju obratovalne trdnosti : doktorsko delo

Panić, Branislav

Doktorsko delo predstavlja rezultate ocenjevanja Gaussovega mešenega modela za potrebe klasifikacije v obratovalni trdnosti. Predstavljene so REBMIX & EM strategije za ocenjevanje parametrov ... Gaussovega mešanega modela. Ocenjevanje parametrov temelji na kombinaciji algoritma REBMIX in EM. REBMIX algoritem na podlagi znane empirične gostote porazdelitve verjetnosti za določen vzorec opazovanj oceni aproksimativne začetne parametre Gaussovega mešanega modela, ki jih nato izboljšamo s pomočjo EM algoritma. Za oceno empirične gostote porazdelitve verjetnosti, ki jo potrebujemo v algoritmu REBMIX, smo predstavili več možnih rešitev. To je prineslo tri različne REBMIX & EM strategije, in sicer Izčrpna strategija REBMIX & EM, Najboljša strategija REBMIX & EM ter Enotna strategija REBMIX & EM. Za oceno optimalnega histograma, ki ga rabimo pri ocenjevanju empirične gostote porazdelitve verjetnosti, smo prikrojili lasten optimizacijski algoritem. Ta temelji na algoritmu koordinatnega spusta. Za cenilko uspešnosti histograma je bilo izbrano Knuthovo pravilo. Za potrebe klasifikacije smo naredili dodaten tristopenjski postopek filtriranja nepomembnih lastnosti. Hkrati smo nakazali način kako lahko izboljšamo uspešnost klasifikacije, če vplivamo na parameter glajenja v histogramskem predprocesiranju REBMIX algoritma.

Type of material - dissertation ; adult, serious

Publication and manufacture - Ljubljana : [B. Panić], 2021

Language - slovenian

COBISS.SI-ID - 76948227

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Digitalna knjižnica Slovenije - dLib.si

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Nagode, Marko | Klemenc, Jernej

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Library	Call number – location, accession no. ...	Copy status
National and University Library, Ljubljana	GS II 742816 glavno skladišče	available - reading room
Faculty of Mechanical Engineering, Lj.	Dr PANIĆ B. Izboljšave IN: 00061017	available - reading room

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Year	Impact factor		Edition		Category		Classification
Year	JCR	SNIP	JCR	SNIP	JCR	SNIP	JCR	SNIP

Links to authors' personal bibliographies	Links to information on researchers in the SICRIS system
Panić, Branislav	39189
Nagode, Marko	13469
Klemenc, Jernej	16334

Source: Personal bibliographies and: SICRIS

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