Dr. José I. Icaza AceretoÁlvarez Cavazos, Francisco2015-08-172015-08-172007-01-12http://hdl.handle.net/11285/572643Within the Web´s data ecosystem dwell applications that consume and produce information with varying degrees of structuring, ranging from very structured business data to the semistructured or unstructured data found in documents which contain a significaenghttp://creativecommons.org/licenses/by-nc-nd/4.0AreaTesis de doctoradoWebArbitrariamenteIngeniería y Ciencias Aplicadas / Engineering & Applied Sciences