5.5.2 ka maatla a heterogeneity

Hang ha o ba susumelletsa batho ba bangata ho ntlafatsa le bothata ba sebele saense, u tla fumana hore barupeluoa hao e tla ba heterogeneous ka litsela tse peli ka sehloohong: ba tla fapana ka leng bokhoni boo ba bona 'me ba tla fapana ka ho bophahamo ba bona ea boiteko. Ba itsoara joang ka ea pele ea bafuputsi ba bangata ba tsoang sechabeng ke ho qhelela ka thōko tlaase barupeluoa boleng le ka nako eo a leka ho bokella chelete e tsitsitseng ea tlhahisoleseding ho tswa mong le e mong oa tsamaea. Ena ke tsela e fosahetseng ho meralo e leng 'project boima tshebedisano.

Taba ea pele, ha ho na lebaka la ho qhelela ka thōko tlaase barupeluoa ba nang le tsebo. A di-call bulehile, le tlaase barupeluoa ba nang le tsebo baka mathata a letho; menehelo ea bona ha utloisa bohloko leha e le mang 'me ba u se ke ua hloka nako efe kapa efe ho hlahloba. A balelela botho le ho aba diporojeke pokello ya data, ka lehlakoreng le leng, molemo ka ho fetisisa ea mofuta o laola liketso boleng tluoa tabeng ea ho pholletsa redundancy, eseng setene phahameng bakeng sa ho nka karolo. Ha e le hantle, ho e-na ntle tlaase leng bokhoni boo barupeluoa, e leng Tsela e molemo ke ho ba thusa ho etsa menehelo molemo, lintho tse ngata kamoo bafuputsi nakong eBird li entseng.

Ea bobeli, ha ho na lebaka la ho bokella chelete e tsitsitseng ka boitsebiso ba bohlokoa ho e mong le barupeluoa. Ho nka karolo mererong e mengata boima tshebedisano e Hoa makatsa hore ebe se lekane (Sauermann and Franzoni 2015) e nang le palo e fokolang ea batho tlatsetsa haholo-ka linako tse ling bitsoa hlooho mafura -le e ngata batho ba tlatsetsa e nyenyane-ka linako tse ling bitsoa mohatla telele. Haeba u sa bokella boitsebiso bo tsoang hlooho mafura le mohatla o nako e telele, o siea boima ba lithane tse tlhahisoleseding e uncollected. Ka mohlala, haeba Wikipedia amohela 10 le litokiso 10 feela ka mohlophisi, e ne e felloa ke hoo e ka bang 95% ea litokiso (Salganik and Levy 2015) . Kahoo, le mererong eo ea kaho boima tshebedisano, ho molemo ho ka maatla a heterogeneity e-na le ho leka ho felisa eona.