Data mining the MNC like internal co-opetition duality in a university context - Jaan Ubi; Innar Liiv; Evald Ubi; Leo Vohandu (CoRR, 2012)

Predicting Student Retention by Linear Programming Discriminant Analysis. - Jaan Ubi; Evald Ubi; Innar Liiv; Kristina Murtazin (Int. J. Technol. Educ. Mark., 2014)

A version of the simplex method for solving linear systems of inequalities and linear programming problems. - Jaan Übi; Evald Übi (CoRR, 2023)