Ideas tagged with hep

Learning computationally expensive functions

Analysing data from an experiment at the Large Hadron Collider at CERN requires large amounts of computing power. In addition to large amounts of experimental data, each individual analysis requires large amounts of simulated data. This production of simulated data is the single largest consu...

By Tim Head

When to worry about negative weights in MVA training for HEP analysis

A discussion at DS@LHC2015 concerned the treatment of negative weights in MVA training. This is relevant for HEP since the advent of MC generators at NLO in QCD, as [the matching of Matrix-Element to Parton-Shower generators](http://dx.doi.org/10.1088/1126-6708/2002/06/029) assigns negative weig...

By Andrea Giammanco