Report on the TREC-3 Experiment: A Learning Scheme in a Vector Space Model. - Jacques Savoy; Melchior Ndarugendamwo; Dana Vrajitoru (TREC, 1994)

Report on the TREC-4 Experiment: Combining Probabilistic and Vector-Space Schemes. - Jacques Savoy; Melchior Ndarugendamwo; Dana Vrajitoru (TREC, 1995)