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Marwen Fatnassi is a data scientist and AI & BI engineer with extensive experience in developing recommendation systems and optimizing algorithms. Currently, Marwen works at ARTE and BIAL-X, focusing on advanced recommendation algorithms and business rule integration. Previous roles include consultancy at HN Services for HR dashboards, data science at Sopra HR Software for payroll automation, and research projects at Inra, emphasizing statistical modeling and data analysis in agronomy. Marwen holds multiple advanced degrees in finance, mathematical engineering, and statistics, reflecting a strong educational foundation in data science and analytics.