2.3.2.3 Non-mumiririri

Two manyuko vasiri representativeness akasiyana nevanhu uye zvakasiyana kushandiswa mhando.

Big Data vanowanzoyemura zvakanyatsorongwa nekambani iri nzira huru mbiri. Izvi haafaniri kukonzera dambudziko nokuda ose pachisara asi vamwe kuongorora inogona kuva yakaoma hunonyadzisa.

A bhuku rokutanga enderana rerekero ndechokuti vanhu vaibatwa vari yemanyorero hakuna zvakasikwa rakakwana vanhu vose kana kuti kurongwa mharidzo kubva chaiwo vemo. Somuenzaniso, vokuAmerica musi Twitter hadzisi kurongwa marapiro vokuAmerica (Hargittai 2015) . A bhuku rechipiri enderana rerekero ndechokuti vakawanda guru mashoko mugadziriro andobata zviito, uye vamwe vanhu vanobatsira zvakawanda zvinoitwa zhinji kupfuura vamwe. Somuenzaniso, vamwe vanhu pamusoro Twitter kupa kakawanda zvikuru Tweets pane vamwe. Naizvozvo, zviitiko pamusoro chaiwo pachikuva kunogona nokusingaperi zvikuru tichifungisisa mamwe subgroups pane papuratifomu pachayo.

Kazhinji vanotsvakurudza vanoda kuziva zvakawanda pamusoro mashoko zvavanazvo. Asi, akapa asiri mumiririri hunhu mashoko makuru, zvinobatsira uyewo pafiripi mafungiro ako. Unofanirawo kuziva zvakawanda pamusoro date kuti murege kuva. Izvi ndezvechokwadi kunyanya kana Data kuti murege kuva vane zvakanyatsorongwa vakasiyana date kuti une. Somuenzaniso, kana uine runhare zvinyorwa kubva serura kambani ari kusimukira, unofanira kufunga kwete chete pamusoro vanhu dataset yenyu, asiwo pamusoro vanhu kungava murombo zvokutadza kuva neserura. Uyezve, muChitsauko 3, tichataura kudzidza pamusoro sei weighting kunogona vakwanise vatsvakurudzi kuti kufungidzira nani kubva non-mumiririri mashoko.