METHOD FOR DISTINGUISHING A LIVE ACTOR FROM AN AUTOMATION

摘要

A computer-implemented method for distinguishing a live actor from an automation is described. A user request to access a service is received, and, in response, the user is presented with a minority set of N objects and a majority set of N objects. The majority set includes objects sharing at least one common attribute expected to be apparent to a human observer absent among objects associated with the minority set. The user is requested to identify at least one object, from among the objects associated with the minority or majority set, that satisfies a predetermined criterion and in response an indication of a selection of at least one object is received. Whether the user-selected object satisfies the predetermined criterion is determined and as is that the user is a human upon determining that the user-selected object satisfies the predetermined criterion.