
yoodante jeey statistiks

oru dicotomous diagnostic testtinte prakadanam pidichedukkunna orotta sthithivivarakkanakkaanu yoodans jeey staattistik (yoodans indux ennum ariyappedunnu). (vaathuveppukaaran) vivarasambushti ennathu multiclass kesilekkulla athinte saamaanyavalkkaranamaanu, koodaathe vivaramulla theerumaanatthinte saadhyatha kanakkakkunnu.
nirvachanam.
yoodante "jeey" sthithivivarakkanakku ithaanu
rund valathukai alavukal samvedanakshamathayum prathyekathayum ullavayaan. athinaal vipuleekaricha soothravaakyam ithaanu
soochika nirddeshichathu dablyu aanu. jeey. 1950ll oru diagnostic testtinte prakadanam samgrahikkunnathinulla oru maargamaayi yooden, ennirunnaalum eee soothravaakyam neratthe sii shaasthrathil prasidheekarichirunnu. ezz. 1884-ll piyezhs. athinte moolyam-1 muthal 1 vare (ulppede) aanu, koodaathe oru diagnostic testt rogamullathum illaathathumaaya grouppukalkku positteev phalangalude athe anupatham nalkumbol poojya moolyamundu, athaayath.pareeksha upayogashoonyamaanu. 1 nte moolyam soochippikkunnathu thettaaya positteevo thettaaya negatteevo illa ennaanu, i.iii. pareeksha thikanjathaanu. soochika thettaaya positteev, thettaaya negatteevu moolyangalkku thulya bharam nalkunnu, athinaal soochikayude ore moolyamulla ellah parishodhanakalum motham thettaaya varggeekaricha phalangalude ore anupatham nalkunnu. eee samavaakyathil ninnu poojyathil thaazheyulla moolyam nedaan kazhiyumenkilum, e.jii. vargeekaranam thettaaya positeevum thettaaya negatteevum maathrame nalkunnulloo, poojyathil thaazheyulla moolyam positteev, negatteevu labelukal maattiyittundennu soochippikkunnu. labelukal sariyaakkiya sesham phalam 0 muthal 1 vareyulla paridhiyilayirikkum.
reseiver operating characteristic (aarosi) vishakalanavumayi samyojippichaan yooden soochika palappozhum upayogikkunnathu. oru aarosi karvinte ellah pooyintukalkkum soochika nirvachikkappedunnu, koodaathe oru diagnostic testt oru dicotomous falathekkaal oru samkhyaaparamaaya phalam nalkumbol opttimal katt-oof pooyint thiranjedukkunnathinulla oru maanadandamaayi soochikayude paramavadhi moolyam upayogikkaam. soochikaye chaans line mukalilulla uyaramaayi graafikkalaayi prathinidheekarikkunnu, koodaathe ithu orotta operating pooyint upayogichu vidheyamaakkiya vakrathinu keezhilulla pradeshathinu thulyamaanu.
yoodans soochika deltap ennum ariyappedunnu, ithu dicotomous muthal multiclass cases vare vivaradaayakamaayi saamaanyavalkkarikkunnu.
orotta soochikayude upayogam "saadhaaranayaayi shupaarsha cheyyappedunnilla", ennaal vivaramulla allengil yoodante soochika ennathu oru vivaramulla theerumaanatthinte saadhyathayaanu (kramarahithamaya oohathinu vipareethamaayi) koodaathe ellah pravachanangalum kanakkiledukkunnu.
vivarangalude veendedukkalil ninnulla adisthaana sthithivivarakkanakkukalu bandhamillaathathum ennaal saadhaaranayaayi upayogikkunnathumaaya samyojanam eph-skoraanu, ithu oormmappeduthalinteyum krithyathayudeyum (orupakshe waited) harmonic maarggamaan, avide oormmappeduthal = censitivity = yadhaartha positteev nirakk, ennaal nirddishtathayum krithyathayum thikachum vyathyasthamaaya alavukalaanu. eph-score, oormmappeduthalum krithyathayum pole, positteev pravachanangal ennu vilikkappedunnava maathrame pariganikkunnullu, oormmappeduthal ennathu positteev klaas maathram pravachikkanulla saadhyathayaanu, krithyatha ennathu oru positteev pravachanam sariyaavaanulla saadhyathayaanu, eph-score eee saadhyathakale thulyamaakkunnu positteev labelukalkkum positteev pravachanangalkkum ore vitharanavum vyaapanavum undaayirikkanam enna phalapradamaaya anumaanathinu keezhil, flees kappayude adisthaana anumaanathinu samaanamaan. oru niyamam, sidhaantham allengil vargeekaranam nirddeshikkunna dishayilulla pravachanangalude deductive falaprapti vilayiruthukayenna lakshyathode yoodante jeey, vivaradaayakatha, oormmappeduthal, krithyatha, eph-score enniva aantharikamaayi dishaabodhamillaathathaanu. markness (deltaap) ennathu vipareethamo thattikkondupokalo cheiyunna disha vilayiruthaan upayogikkunna yoodante jeey aanu, koodaathe asosiyeshanukalude manushya padanavumaayi nannayi poruthappedunnu; niyamangalum andhavishwaasangalum saadhyamaaya kaaryakaaranatthe maathrkayaakkumbol; paraspara bandhavum kappa dvidishayil vilayiruthunnu.
prashnathinteyum athinte erattayudeyum regression coffificientinteyum jyaamitheeya saraashariyaanu maatthyoos korileshan coffificient, avide maatthyoos korileshan coffificientinte gadakamaaya regression kofishyantukal markness (yoodante jeey allengil deltaap ennathinte vipareetham), informedness (yoodante jeey allengil deltaap) ennivayaanu. flees kappa, cohans kappa thudangiya kappa sthithivivarakkanakkukal naamamaathramo munkoor vitharanangalo sambandhicha vyathyastha anumaanangale adisthaanamaakki inter-rettar vishwaasyatha kanakkakkunnathinulla reethikalaanu, mattu sandarbhangalil krithyathaykku "aakasmikamaayi thiruthappetta" badalukalaayi iva kooduthalaayi upayogikkunnu. eph-score pole flees kappa, rund variabilukalum ore vitharanathil ninnaan varachathennum athinaal prathekshikkunna athe vyaapanamundennum anumaanikkunnu, athesamayam cohens kappa variableukal vyathyastha vitharanagalil ninnaan varachathennum vyapanangal swathanthramaanennu anumaanikkunna pratheekshayude oru modalilekku paraamarsikkunnuvennum anumaanikkunnu.
rund positteev veriyabilukalude yadhaartha vyaapanam flees kappayilum eph-skorilum anumaanikkunnathupole thulyamaakumbol, athaayath positteev pravachanangalude ennam dicotomous (rund klaas) kesile positteev klaasukalude ennavumaayi poruthappedunnu, vyathyastha kappa paraspara bandha alavum yoodante jeey upayogichu identittiyilekku thakarunnu, koodaathe oormmappeduthal, krithyatha, eph-score enniva krithyathayumaayi samaanamaan.

