US Patent 10282669 Logical inference expert system for network trouble-shooting

Techniques are disclosed for determining a possible cause of a problem in a computer system. A trouble-shooting component of the computer system may perform forward chaining on the available data to determine one or more hypotheses of the cause of the problem. The component may then perform backward chaining on the hypotheses to determine missing information that, if known, would increase or decrease the likelihood of the hypotheses being true. Then, the component may perform Bayesian probability analysis on the known and missing information to determine a probability that each hypothesis is correct.