Hadj Ahmed Bouarara received a license degree in computer Science, Master diploma in computer modeling of knowledge and reasoning, DR and HDR in Web and Knowledge Engineering from Dr. Tahar Moulay University. He is an Associate Professor in computer science department of saida university and a member of the GeCoDe laboratory. He is a part of the project metaheuristic for information retrieva and a member of the team bio mimicry in the GeCoDe laboratory. he has different publications (book, book chapter, articles, conference paper...ect). he was a member in the organisation and PC member in different international conferences such as International Conference on Computer Intelligence and Its Applications (CIIA), CNTA, JERI and other conference. he was a member of saida information technology club and a reviewver Board in different international journal such as IJIRR, IJOCI, JITR, IJSIR ....ect. His research interests Data Mining, Knowledge Discovery, Metaheuristic, Bio-inspired techniques, Retrieval Information, Cloud Computing and images processing.