
In a graph or network, this is a path from one node to another whose total cost is the least among all such paths. The 'cost' is usually the sum of the arc costs, but it could be another function (e.g., the product for a reliability problem, or max for a fuzzy measure of risk). There are some particular labeling algorithms given.
Found on
http://glossary.computing.society.informs.org/index.php?page=S.html

A technique in recording that routes the signal through the least amount of active (amplified) devices during recording.
Found on
http://www.encyclo.co.uk/local/20447
No exact match found.