5.5.2 heterogeneity huanga

Kia kua hihiri koe te rota o te iwi ki te mahi i runga i te raruraru pūtaiao tūturu, ka ite koe e ka heterogeneous koutou kaiuru i roto i te rua ara matua: ka rerekē ratou i roto i to ratou pūkenga, a ka rerekē ratou i roto i to ratou taumata o te kaha. Ko te tauhohenga tuatahi o te maha pāpori kairangahau he ki te tutakina kaiuru kounga iti, me te ka ngana ki te kohikohi i te nui whakaritea o te mōhiohio i katoa i mahue. Ko te ara he, ki te hoahoa i tētahi kaupapa papatipu mahi tahi tenei.

Tuatahi, i reira he kahore take ki te tutakina iti mohio kaiuru. I roto i ngā waea tuwhera, meinga iti mohio kaiuru kahore raruraru; e kore e ratou takoha tukino tetahi, me te kore ratou e rapua e tetahi wa ki te arotake i. I roto i te te tätaitanga tangata me kaupapa kohinga raraunga tohaina, i runga i te tahi atu te ringa, te ahua pai o te mana kounga mai i roto i hapanga, kihai te pae tiketike mō te whai wāhitanga. I roto i te meka, nui atu i hāunga ngā kaiuru pūkenga iti, he huarahi pai he ki te āwhina i hanga ia ratou takoha pai, nui rite i mea ai nga kairangahau i eBird.

Tuarua, kahore he take ki te kohikohi i te nui whakaritea o te mōhiohio i ia kaiuru. Whai wāhi i roto i te maha kaupapa mahi tahi papatipu he taurite mīharo (Sauermann and Franzoni 2015) ki te maha iti o te iwi whai wāhi te rota-ētahi wā ka karanga te matenga ngako; a he rota o te iwi whai wāhi i te iti-i te tahi taime i huaina te hiku roa. Ki te kore koe e kohikohi mōhiohio i te matenga ngako me te hiawero roa, e mahue koutou taranata o ngā mōhiohio uncollected. Hei tauira, ki te Wikipedia whakaae 10 me ​​10 anake whakatika ia ētita, e mate ano ia e pā ana ki 95% o whakatika (Salganik and Levy 2015) . Ko te kupu, ki te kaupapa mahi tahi papatipu, he reira pai ki te whaihua heterogeneity, kaua ki te tamata i te faaore i te reira.