Knowledge base for automatic generation of online IMS LD compliant course structures. - Ecaterina Pacurar-Giacomini; Philippe Trigano; Sorin Alupoaie (J. Educ. Technol. Soc., 2006)

Using tf-idf as an edge weighting scheme in user-object bipartite networks. - Sorin Alupoaie; Pádraig Cunningham (CoRR, 2013)