Efficient Reasoning in Qualitative Probabilistic Networks

  title={Efficient Reasoning in Qualitative Probabilistic Networks},
  author={Marek J. Druzdzel and Max Henrion},
Qualitative Probabilistic Networks (QPNs) are an abstraction of Bayesian belief networks replacing numerical relations by qualitative innuences and synergies Wellman, 1990b]. To reason in a QPN is to nd the eeect of new evidence on each node in terms of the sign of the change in belief (increase or decrease). We introduce a polynomial time algorithm for… CONTINUE READING