TurKPF: TurKontrol as a Particle Filter
  TurKontrol, and algorithm presented in (Dai et al. 2010), uses a POMDP to
model and control an iterative workflow for crowdsourced work. Here, TurKontrol
is re-implemented as "TurKPF," which uses a Particle Filter to reduce
computation time & memory usage. Most importantly, in our experimental
environment with default parameter settings, the action is chosen nearly
instantaneously. Through a series of experiments we see that TurKPF and
TurKontrol perform similarly.
