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US 9,866,509 B2Granted
Spam filtering and person profiles
AssigneeYahoo Holdings, Inc.
InventorsAdam Michael Smith, Joshua Robert Russell Jacobson, Brian Tadao Kobashikawa, Gregory Garland Thatcher
Life of this patent
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Abstract
Systems and methods to reduce false positives in spam filtering. In one aspect, a method includes automatically generating profiles for persons identified in messages, such as incoming and outgoing e-mails. Messages flagged as spam can be checked against the profile to identify false positives.
Claims15
A method, comprising:
- ranking a plurality of persons to determine a respective relevancy score for each of the persons, each of the persons having previously sent a message to a user, wherein the respective relevancy score for each person is increased when the user has moved at least one message from the person to a folder;
- determining, by at least one processor, at least one false positive spam message from a first set of messages classified as spam, the determining the at least one false positive spam message comprising determining whether a body of a first message to the user includes an address for a first person of the plurality of persons, wherein the first person is not a sender of the first message, the first message comprises the body and an address field for the sender, and the relevancy score of the first person is higher than a threshold;
- automatically adjusting the threshold based on a number of the at least one false positive spam message;
- and
- causing identification of the at least one false positive spam message for the user.
2 more elements
A system, comprising:
- at least one processor;
- and
- memory storing instructions configured to instruct the at least one processor to:
- rank a plurality of persons to determine a respective relevancy score for each of the persons, each of the persons having previously sent a message to a user;
- determine a relevancy score for each of a first set of messages classified as spam, wherein a relevancy score of a first message from a sender is increased when the user has moved at least one prior message from the sender to a folder;
- determine at least one false positive spam message from the first set of messages, the determining the at least one false positive spam message comprising determining whether a body of a message includes an address for a first person of the plurality of persons, wherein the relevancy score of the first person is higher than a threshold, and the determining the at least one false positive spam message further comprises using the relevancy score of the first message;
- and
- cause identification of the at least one false positive spam message for the user.
5 more elements
A non-transitory computer-readable storage medium storing computer-readable instructions, which when executed, cause a computing system to:
- rank a plurality of persons to determine a respective relevancy score for each of the persons, each of the persons having previously sent a message to a user, wherein the respective relevancy score for each person is increased when the user has moved at least one message from the person to a folder;
- determine, by at least one processor, at least one false positive spam message from a first set of messages classified as spam, the determining the at least one false positive spam message comprising determining whether a body of a message includes an address for a first person of the plurality of persons, wherein the relevancy score of the first person is higher than a threshold;
- and
- cause identification of the at least one false positive spam message for the user.
1 more element
Dependencies are inferred from the claim text.