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公开(公告)号:US07734633B2
公开(公告)日:2010-06-08
申请号:US11874813
申请日:2007-10-18
申请人: Tie-Yan Liu , Hang Li , Tao Qin , Zhe Cao
发明人: Tie-Yan Liu , Hang Li , Tao Qin , Zhe Cao
IPC分类号: G06F17/30
CPC分类号: G06F17/30864
摘要: Procedures for learning and ranking items in a listwise manner are discussed. A listwise methodology may consider a ranked list, of individual items, as a specific permutation of the items being ranked. In implementations, a listwise loss function may be used in ranking items. A listwise loss function may be a metric which reflects the departure or disorder from an exemplary ranking for one or more sample listwise rankings used in learning. In this manner, the loss function may approximate the exemplary ranking for the plurality of items being ranked.
摘要翻译: 讨论了以列表方式学习和排序项目的程序。 列表方法可以将个别项目的排名列表视为被排序的项目的具体置换。 在实现中,可以在排序项中使用列表丢失函数。 列表损失函数可以是反映学习中使用的一个或多个样本列表排序的示例性排名的偏离或混乱的度量。 以这种方式,损失函数可以近似排列的多个项目的示例性排名。
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公开(公告)号:US20090106222A1
公开(公告)日:2009-04-23
申请号:US11874813
申请日:2007-10-18
申请人: Tie-Yan Liu , Hang Li , Tao Qin , Zhe Cao
发明人: Tie-Yan Liu , Hang Li , Tao Qin , Zhe Cao
IPC分类号: G06F7/00
CPC分类号: G06F17/30864
摘要: Procedures for learning and ranking items in a listwise manner are discussed. A listwise methodology may consider a ranked list, of individual items, as a specific permutation of the items being ranked. In implementations, a listwise loss function may be used in ranking items. A listwise loss function may be a metric which reflects the departure or disorder from an exemplary ranking for one or more sample listwise rankings used in learning. In this manner, the loss function may approximate the exemplary ranking for the plurality of items being ranked.
摘要翻译: 讨论了以列表方式学习和排序项目的程序。 列表方法可以将个别项目的排名列表视为被排序的项目的具体置换。 在实现中,可以在排序项中使用列表丢失函数。 列表损失函数可以是反映学习中使用的一个或多个样本列表排序的示例性排名的偏离或混乱的度量。 以这种方式,损失函数可以近似排列的多个项目的示例性排名。
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