Facial image retrieval problem is one of te typical example of information processing based on sensibility. The main reason is that this problem has some difficulties about ambiguities of retrieval targets and non-determinateness of effective search-key. In this paper, we propose a facial image retrieval system with extended C4.5 algorithm as a retrieval mechanism. Some computer simulations are designed to investigate the performance of our system. The results of simulations represent that the our system shows good performance for the facial image retrieval problem.
