Non-deterministic chaos
  Non-deterministic chaos is a new dynamical paradigm where a non-deterministic system is influenced by random perturbations to produce the appearance of complexity. The non-determinism is envisioned to occur only at a single point in phase space, where many trajectories intersect. In the presence of external random perturbations (noise), whenever the phase space trajectory approaches the singularity, it will jump in an unpredictable way to a different solution. This behavior, while similar in appearance to deterministic chaos, has rather different implications for prediction and control. 
D. D. Dixon (Institute for Geophysics and Planetary Physics,   University of California, Riverside)