The doctoral thesis of the student Ahmed Hussein Salman was discussed at the Institute of Informatics for Postgraduate Studies at the University of Information Technology and Communications. The thesis, entitled “Optimal Document Classification Using a Combination of Features and Modified Optimization Techniques”, was discussed in the field of computer science, and the discussion ended with the student being awarded a doctorate with an Excellent rating. The thesis was submitted for OptiMixDocClassifier, an innovative system that attempts to classify text and image documents by integrating advanced machine learning techniques and transformers with improved feature extraction methods, and provides development of this system that offers a comprehensive solution to the challenges of classifying mixed media documents.