Current topics in artificial intelligence : 10th Conference of the Spanish Association for Artificial Intelligence, CAEPIA 2003, and 5th Conference on Technology Transfer, TTIA 2003, San Sebastian, Spain, November 12-14, 2003 : revised selected papers - Conejo, Ricardo; Urretavizcaya, Maite; Pérez-de-la-Cruz, José-Luis (Lecture notes in computer science,, 2004)