The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2011
Filed:
Oct. 10, 2008
Eliot C. Gillum, Mountain View, CA (US);
Qifa KE, Cupertino, CA (US);
Yinglian Xie, Cupertino, CA (US);
Fang Yu, Sunnyvale, CA (US);
Yao Zhao, Chicago, IL (US);
Eliot C. Gillum, Mountain View, CA (US);
Qifa Ke, Cupertino, CA (US);
Yinglian Xie, Cupertino, CA (US);
Fang Yu, Sunnyvale, CA (US);
Yao Zhao, Chicago, IL (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Computer implemented methods are disclosed for detecting bot-user groups that send spam email over a web-based email service. Embodiments of the present system employ a two-prong approach to detecting bot-user groups. The first prong employs a historical-based approach for detecting anomalous changes in user account information, such as aggressive bot-user signups. The second prong of the present system entails constructing a large user-user relationship graph, which identifies bot-user sub-graphs through finding tightly connected subgraph components.