Sanaike njira: a mitundu ikuluikulu ya ma aligorivimu ndi zowerengera

A nambala yaikulu ya mavuto masamu kugwirizana ndi kupeza mfundo anagawira omangidwa mu mlengalenga. Tikulankhula za kachitidwe mudziwe cholinga Hrs, chifukwa iwo n'zotheka kuyeza mfundo chofunika pa mfundo zina. Kuti athetse mavuto awa zambiri ntchito limodzi kapena njira zina za sanaike.

tanthauzo

Sanaike njira kuwerengetsa mfundo zokhwima pa mfundo kuti ndi akonzedwa kupezeka kwa mfundo apawokha. The njira ambiri sanaike ali motere: Njira ya osiyanitsidwa mtunda zolemeletsedwa, pamwamba azimuth ndi kriging.

njira zoyambirira za sanaike

Choncho, tione njira woyamba, umunthu umenewu chagona mu mphamvu ya mfundo pafupi kuti wachibale akuti malo ndi zina. Woterowo sanaike njira kumaphatikizapo kusankha kwa zimachititsa chilumbachi mu oyandikana nawo ena mfundo zenizeni, ali kwambiri zochita pa izo. Choncho anasankha pazipita kufufuza osiyanasiyana kapena chiwerengero cha mfundo zimene zili pafupi ina. kusintha Komanso kwapatsidwa mwa kulemera mu mfundo iliyonse makamaka amene masamu malinga ndi mtunda mfundo zina. Mwa njira iyi chingapezeke mwa chopereka wamkulu wapafupi mfundo kutalika palembali poyerekeza ndi mfundo kutali sangamuthandize Anatipatsa.

The sanaike njira yachiwiri ntchito pamene pali chidwi ofufuza ambiri mumaganiza pamwamba. Mofanana ndi njira yoyamba kwa azimuth mfundo zingagwiritsidwe ntchito, omwe ali mkati pamwamba anakonzeratu. Kodi inu kumanga kwambiri za chiyerekezo zabwino zochokera maikwezhoni masamu (polynomials kapena splines). Ambiri, ntchito njira mabwalo osachepera zochokera maikwezhoni wa dependencies osalunjika. njira zachokera m'malo zokhotakhota ndi zina mindandanda n'zosangalatsa kumva lembani yosavuta. Kumanga masiku chilichonse mtengo wa pamwamba ayenera mmalo mu aone kuti pali lapansi. Chifukwa ndi mtengo wapadera anatumizidwa njira palembali (mfundo). Mfundo zina zonse ndondomeko akupitiriza.

njira ina sanaike pamwamba, kriging sanaike ndondomeko amapereka kukhathamiritsa, kutenga monga maziko chikhalidwe zowerengera padziko.

Ntchito sanaike quadratic

Pali chida china kudziwa mfundo zenizeni - njira ya sanaike quadratic, ndicho chimene chiri m'malo a ntchito pa nthawi winawake wa parabola quadratic. Choncho extremum ake kuchita masamu analytically. Pambuyo malo ake pafupifupi (osachepera kapena pazipita) ayenera anapereka imeneyi zina amatsogoza, ndiyeno kufufuza kupeza njira yothetsera kupitiriza. Mwa kuchita njirayi kachiwiri, n'zotheka, pogwiritsa ntchito ndondomeko iterative kuti sule mtengo wa aone kuti pali izi chifukwa ndi lolondola anakonzeratu mu chiphunzitso vuto.