| 摘要 |
A sender's degrees of separation from a recipient may be used to aid in spam filtering or to otherwise handle a communication. The degrees of separation represent a metric used to quantify whether/how the recipient is linked to the sender through intermediary people or other entities. For example, a recipient may know a first user (first degree of separation) and the first user may know a second user (second degree of separation) who knows the sender of an e-mail. In this case, the sender is separated from the recipient by two degrees of separation (by two other contact). A level of trust or legitimacy about a sender's communication can be inferred by looking at whether the sender is linked to an intended recipient. Typically, user contact lists are evaluated to determine the number of degrees (or hops) are required to link or relate two users.
|
