Update on Neural Network Parton Distributions: NNPDF1.1
  We present recent progress within the NNPDF parton analysis framework. After a brief review of the results from the DIS NNPDF analysis, NNPDF1.0, we discuss results from an updated analysis with independent parametrizations for the strange and anti-strange distributions, denoted by NNPDF1.1. We examine the phenomenological implications of this improved analysis for the strange PDFs. 
NNPDF Collaboration: Juan Rojo, Richard D. Ball, Luigi Del Debbio,   Stefano Forte, Alberto Guffanti, Jose I. Latorre, Andre...