Results of the First IPTA Closed Mock Data Challenge
  The 2012 International Pulsar Timing Array (IPTA) Mock Data Challenge (MDC)
is designed to test current Gravitational Wave (GW) detection algorithms. Here
we will briefly outline two detection algorithms for a stochastic background of
gravitational waves, namely, a first-order likelihood method and an optimal
statistic method and present our results from the closed MDC data sets.
