Over the last two decades, governments have increased their investment in information technology to improve the use of public resources, using public electronic procurement systems to obtain better prices, better solutions ...

We present an unsupervised method that selects the most relevant features using an embedded strategy while maintaining the cluster structure found with the initial feature set. It is based on the idea of simultaneously ...

Recientemente los datos se han incrementado en todas las áreas del conocimiento, tanto en el número de instancias como en el de atributos. Bases de datos actuales pueden contar con decenas e incluso cientos de miles de ...