
collider (ganaamkaalu)

ganaamkaalu mariyu kaarana graphlalo, rendu ledhaa anthakante ekkuva chararasulache karanaparamga prabhaavitamainappudu chararashi anedi oka gharshana. collider" anae paeru graphical namoonaalalo, kolaidarloki daariteese chararaasula nundi baanam talalu kolide node meeda "dheekonadam" gaa kanipistaayi anae vaastavaanni pratibimbistumdi. vaatini konnisaarlu viloma forklu anie kooda pilustaaru.
kottukupoye yantraanni prabhaavitam chese kaarana chararaasulu tappanisarigaa sambandham kaligi undavu. avi prakkane lekapothe, kottukupoyedi "unshield" avutundi. lekapothe, kottukupoyedi rakshinchabadutundi mariyu tribhujamlo bhaagam.
maargamlo oka collider undatam valla, collider daanini prabhaavitam chese chararaasula madhya anubandhaanni addukuntundi. anduvalla, kolidedi daanini nirnayinche chararaasula madhya besharatu anubandhaanni srushtinchadu.
gharshana vislaeshanha, stareekarana, prayogaatmaka roopakalpana ledhaa gharshana viluvala aadhaaramgaa namuunaa empika dwara gharshanapai conditioning x mariyu y (berkson paradox) madhya naan-kajal anubandhaanni srushtistundi. kaarana graphla paribhaashalo, kollidarpai conditioning x mariyu y madhya marganni terustundi. x mariyu y madhya kaarana anubandhaanni anchanaa vesetappudu idhi pakshapaataanni parichayam chestundi, edhee laeni chota anubandhaalanu parichayam chestundi. anduvalla gharshanakaarulu kaarana siddhaantaalanu pareekshinche prayatnaalanu anagadokkavacchu.
kottukupoyevi konnisaarlu confounder variables thoo ayomayam chendutaayi. kolidevaari maadirigaa kakunda, kaarana sambandhaalanu anchanaa vesetappudu confounder variables "niyantrinchabadaali".

