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Apache LicenseVersion 2.0, January 2004http://www.apache.org/licenses/TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION1. Definitions."License" shall mean the terms and conditions for use, reproduction,and distribution as defined by Sections 1 through 9 of this document."Licensor" shall mean the copyright owner or entity authorized bythe copyright owner that is granting the License."Legal Entity" shall mean the union of the acting entity and allother entities that control, are controlled by, or are under commoncontrol with that entity. 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：Code submit frequency
：React/respond to issue & PR etc.
：Well-balanced team members and collaboration
：Recent popularity of project
：Star counts, download counts etc.