TY - SER AU - Cortes Vasquez, Augusto TI - Learning System of web Navegation Patterns through Hypertext Probabilistic Grammars KW - Probabilistic Grammars KW - Navegation Patterns KW - Pattern Learning Hypertext Probabilistic Grammar KW - Hypertext KW - Information Retrieval N1 - Imcluye referencias bibliográficas, Idioma Ingles ER -