@misc{10481/77911, year = {2009}, url = {https://hdl.handle.net/10481/77911}, abstract = {The steganography problem consists of the identification of images hiding a secret message, which cannot be seen by visual inspection. This problem is nowadays becoming more and more important since the World Wide Web contains a large amount of images, which may be carrying a secret message. Therefore, the task is to design a classifier, which is able to separate the genuine images from the non-genuine ones. However, the main obstacle is that there is a large number of variables extracted from each image and the high dimensionality makes the feature selection mandatory in order to design an accurate classifier. This paper presents a new efficient parallel feature selection algorithm based on the Forward-Backward Selection algorithm. The results will show how the parallel implementation allows to obtain better subsets of features that allow the classifiers to be more accurate.}, organization = {TIN2007-60587, P07-TIC-02768 and P07-TIC-02906,TIC-3928}, organization = {Nokia Foundation, Finland}, publisher = {Springer}, keywords = {Inteligencia artificial}, keywords = {Artificial intelligence}, title = {Efficient Parallel Feature Selection for Steganography Problems}, author = {Guillén, Alberto and Rojas Ruiz, Ignacio}, }