Learning to rank in XML information retrieval: Which feature improve the best? - Messaoud Chaa; Omar Nouali; Kamal Bal (ICDIM, 2012)

CERIST at INEX 2015: Social Book Search Track. - Messaoud Chaa; Omar Nouali (CLEF (Working Notes), 2015)

Verbose Query Reduction by Learning to Rank for Social Book Search Track. - Messaoud Chaa; Omar Nouali; Patrice Bellot (CLEF (Working Notes), 2016)

New technique to deal with verbose queries in social book search. - Messaoud Chaa; Omar Nouali; Patrice Bellot (WI, 2017)

Combining Tags and Reviews to Improve Social Book Search Performance. - Messaoud Chaa; Omar Nouali; Patrice Bellot (CLEF, 2018)

Leveraging app features to improve mobile app retrieval. - Messaoud Chaa; Omar Nouali; Patrice Bellot (Int. J. Intell. Inf. Database Syst., 2021)