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 n'ókè ha na ọdabara ka nnukwu data isi mmalite, na Puts, Daas, and Waal (2015) ọnọde ụfọdụ nke otu echiche maka a ọzọ n'ozuzu na-ege ntị.
