 De Waal, Puts, and Daas 2014 na-akọwa mgbakọ na mwepụ data edezi usoro mepụtara maka nnyocha e mere data na inyocha na nke ruo nókè ha na ọdabara ka nnukwu data isi mmalite, na Puts, Daas, and Waal 2015 ọnọde ụfọdụ nke otu echiche maka a ọzọ nozuzu na-ege ntị. 