A shellfish cracking device for cracking shellfish such as lobster and crabs is provided. A transfer facility on the old appliance is used to select the information to transfer. It provides the advantages as follows: it only monitors the electric performance, not the mechanical performance of a cable; it monitors the cable itself rather than a monitor material; it is applicable to all kinds of cables, including but not limited to a large-current cable; it does not introduce new cables; it is an on-line monitoring, i. The method further comprises, responsive to an occurrence of a predetermined event associated with the environment, using the mutation rate and the probabilistic mutation criteria to determine if the operating parameter value should mutate, and changing the operating parameter value in response to a determination that the operating parameter value should mutate. In some implementations, multiple output triangles within the input triangle are generated simultaneously by parallel processing.