Anderson, Cornuéjols and Li (2005) show that for a polyhedral mixed integer set defined by a constraint system Ax ≥ b, where x is n-dimensional, along with integrality restrictions on some of the variables, any split cut is in fact a split cut for a basic relaxation, i.e., one defined by a subset of linearly independent constraints. This result implies that any split cut can be obtained as an i...

This paper discuss the latest trends in the field of evolutionary approaches to iris recognition, approaches which are compatible with the task of multi-enrollment in a biometric authentication system based on iris recognition, and which are also able to ensure strong discrimination between the enrolled users. A new authentication system based on supervised learning of iris biometric identities...

Oil palm mesocarp fiber is a promising lignocellulosic biomass as raw material for valorizing into more valuable products such second-generation biofuels, biocomposites, or bioenergy. However, the lignin composition present in provides resistance to valorization process and protects cellulose composition, thereby limiting conversion of products. The hybrid ozonation-ultrasonic method lignin-deg...

We investigate the performance of two common lift-and-project techniques, the SheraliAdams (SA) and the Balas, Ceria and Cornuéjols (BCC) hierarchies, on the natural linear relaxation of the Bounded Color Matching polyhedron and generalizations. We prove the following unconditional inapproximability results: even a large family of linear programs, generated by an asymptotically linear number of...