Query Expansion Using DBpedia and WordNet. - Sarah Dahir; Hamid Khalifi; Abderrahim El Qadi (ArabWIC, 2019)

Query expansion based on clustering and personalized information retrieval. - Hamid Khalifi; Walid Cherif; Abderrahim El Qadi; Youssef Ghanou (Prog. Artif. Intell., 2019)

Enhancing information retrieval performance by using social analysis. - Hamid Khalifi; Sarah Dahir; Abderrahim El Qadi; Youssef Ghanou (Soc. Netw. Anal. Min., 2020)

Efficient Algebraic Method for Testing the Invertibility of Finite State Machines. - Zineb Lotfi; Hamid Khalifi; Faissal Ouardi (Comput., 2023)

AMAdam: adaptive modifier of Adam method. - Hichame Kabiri; Youssef Ghanou; Hamid Khalifi; Gabriella Casalino (Knowl. Inf. Syst., 2024)