Gushyira mubikorwa igeragezwa ryo kugarura no kubara ibipimo byo gukira

Ikizamini cyo gukira ni ubwoko bw "ikizamini cyo kugenzura".Iyo ibice bigize isesengura ryasesenguwe bigoye kandi ntibisobanutse neza, umubare uzwi wibipimo byapimwe byongewe kuri sample, hanyuma bipimwa kugirango barebe niba ibice byongeweho bishobora kugarurwa muburyo bwo kumenya niba hari ikosa ritunganijwe muri inzira yo gusesengura.Ibisubizo byabonetse akenshi bigaragazwa nkijanisha, bita "kugarura kwijana", cyangwa "gukira" mugihe gito.Ikizamini cyo kugarura ibintu ni uburyo busanzwe bwo kugerageza mu gusesengura imiti, kandi nigikoresho cyingenzi cyo kugenzura ubuziranenge.Gusubirana ni igipimo cyerekana umubare wibisubizo byisesenguye.

Kugarura gukabije ni igipimo cyibirimo (agaciro gapimwe) nagaciro kongerewe mugihe igipimo gifite ibintu bizwi (ibipimo byapimwe) byongewe kubusa cyangwa ibintu bimwe na bimwe bifite ibisobanuro bizwi kandi bigaragazwa nuburyo bwashyizweho.

Kugarura gukubitwa = (kugereranywa kugereranwa agaciro - kugereranya urugero)

Niba agaciro kongerewe ari 100, agaciro gapimwe ni 85, igisubizo nigipimo cyo gukira cya 85%, kizwi nka spiked recovery.

Kugarura birimo gukira byimazeyo hamwe no gukira ugereranije.Gusubirana byimazeyo gusuzuma ijanisha ryicyitegererezo gishobora gukoreshwa nyuma yo gutunganywa.Ibi ni ukubera ko hari igihombo cya sample nyuma yo gutunganywa.Nuburyo bwo gusesengura, gukira byimazeyo birasabwa kuba hejuru ya 50% kugirango byemererwe.Nicyo kigereranyo cyibintu byapimwe byongewe mubwinshi kuri matrix yubusa, nyuma yo kuvurwa, kurwego.Ibipimo bivangwa mu buryo butaziguye, ntabwo ari ibicuruzwa bimwe nkubuvuzi bumwe.Niba ari kimwe, gusa ntukongereho matrix kugirango ukemure, hashobora kubaho ibintu byinshi byingaruka bikingiwe nibi, bityo bikabura intego yambere yo gusuzuma isubiranamo ryuzuye.

Hariho ubwoko bubiri bwo gukira mubyukuri kuvuga.Bumwe nuburyo bwo kugarura uburyo bwo kugarura ubundi nuburyo bwa spiked sample yo kugarura uburyo.Icyambere nukwongeramo ibintu byapimwe muri matrix yubusa, umurongo usanzwe nawo ni umwe, ubu buryo bwo kwiyemeza bukoreshwa cyane, ariko hariho gukeka ko umurongo usanzwe ugenwa inshuro nyinshi.Iya kabiri ni ukongeramo ibintu byapimwe murugero rwo kwibandaho bizwi kugirango ugereranye nu murongo usanzwe, nawo wongeyeho muri matrix.Kugereranya gukira birasuzumwa cyane cyane.