Cunningham's Rule constructions because they tend to average out how many times a variable pivots. It has recently been shown by David Avis and Oliver Friedmann that there is a family of linear programs on which the simplex algorithm equipped with Cunningham's rule requires exponential time. Cunningham's Rule In mathematical optimization, Cunningham's rule (also known as least recently considered rule or round-robin rule) is an algorithmic refinement of the simplex method for linear optimization. The rule was proposed 1979 by W.H. Cunningham to defeat the deformed hypercube constructions by Klee and Minty et. al. (see, e.g. Klee–Minty cube). Cunningham's rule assigns a
No-impeachment rule No-impeachment rule The no-impeachment rule (also known as the non-impeachment rule) is a rule in the procedural law of many jurisdictions. It says testimony from jurors about what occurred during jury deliberations may not be used to impeach a verdict during an appeal. The rule originated in common law and has been codified into statute in many jurisdictions. The United States Federal Rules of Evidence, section 606(b) defines it as: (1) Prohibited Testimony or Other Evidence. During an inquiry into the validity of a verdict or indictment, a juror may not testify about any statement made or incident that occurred