Elastīgais parametriskais modelis izdzīvošanas datiem ar konkurējošiem riskiem

6533b7d6fe1ef96bd1265fbb

RESEARCH PRODUCT

Elastīgais parametriskais modelis izdzīvošanas datiem ar konkurējošiem riskiem

Aleksandra Galahina

subject

flexible parametric model konkurējošie riski elastīgais parametriskais modelis Matemātika kumulatīvo biežumu funkcija competing risks

description

Konkurējošie riski ir izplatīta parādība izdzīvošanas analīzē. Tie rodas, kad subjekts atrodas vairāku savstarpēji izslēdzošu notikumu riska zonā. Populārākā metode, pētot šāda veida datus, ir Deivida Koksa semi-parametriskā modeļa izmantošana. Darbā ir aplūkots alternatīvais variants izdzīvošanas datiem ar konkurējošiem riskiem – elastīgais parametriskais modelis, kas sniedz gludus novērtējumus galvenajiem raksturlielumiem – konkrēto cēloņu riskam un kumulatīvo biežumu funkcijai. Turklāt, izmantojot šo modeli, ir viegli iekļaut no laika atkarīgus ietekmējošos mainīgos. Darbā tiek aprakstīta konkurējošo risku elastīgā parametriskā modeļa būtība, un metode ir salīdzināta ar Koksa modeli. Ir apskatīti simulāciju piemēri, kā arī metožu pielietojums reāliem datiem.

year	journal	country	edition	language
2015-01-01

https://dspace.lu.lv/dspace/handle/7/30443

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