Lie great number of lies, depending on how the political wind blows." The question of whether lies can reliably be detected through nonverbal means is a subject of some controversy. Polygraph "lie detector" machines measure the physiological stress a subject endures in a number of measures while he/she gives statements or answers questions. Spikes in stress are purported to indicate lying. The accuracy of this method is widely disputed, and in several well-known cases it was proven to have been deceived. Nonetheless, it remains in use in many areas, primarily as a method for eliciting confessions or employment screening. Polygraph results
Failure detector the failure detectors would find the programs that finally crashed in a process, whereas accuracy means that correct decisions that the failure detectors made in a process. The degrees of completeness depend on the number of crashed process is suspected by a failure detector in a certain period. The degrees of accuracy depend on the number of mistakes that a failure detector made in a certain period. Failure detectors can be categorized in the following eight types: The properties of these failure detectors are described below: In a nutshell, the properties of failure detectors depend on how fast the failure