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    Taxonomy-based system for discovering and annotating geofences from geo-referenced data
    3.
    发明授权
    Taxonomy-based system for discovering and annotating geofences from geo-referenced data 有权

    公开(公告)号：US11176217B2

    公开(公告)日：2021-11-16

    申请号：US16524584

    申请日：2019-07-29

    Applicant: Yahoo! Inc.

    Inventor： Daniele Quercia ,  Francesco Bonchi ,  Carmen Vaca

    IPC: G06F16/00 ,  G06F16/9537 ,  H04W4/021 ,  G06F16/28 ,  G06F16/29

    Abstract: Systems and methods for discovering and annotating geo-fences from geo-referenced data are disclosed. The systems and methods input an area of interest containing a plurality of geo-referenced points having associated labels, and divides the area interest into cells. Each cell is assigned an initial label from among the plurality of labels and hierarchical clustering is used to find clusters of cells having a common label based on a maximization of an objective function for each cell with the objective function being dependent upon favoring spatially adjacent cells having a common label and limiting overgeneralization of the common label.

    ASSOCIATION- AND PERSPECTIVE-BASED CONTENT ITEM RECOMMENDATIONS
    6.
    发明申请
    ASSOCIATION- AND PERSPECTIVE-BASED CONTENT ITEM RECOMMENDATIONS 审中-公开
    基于协商和视角的内容项目建议

    公开(公告)号：US20160092576A1

    公开(公告)日：2016-03-31

    申请号：US14497760

    申请日：2014-09-26

    Applicant: Yahoo!, Inc.

    Inventor： Daniele Quercia ,  Mounia Lalmas ,  Eduardo Graells

    IPC: G06F17/30

    CPC classification number: G06F16/9535 ,  G06Q30/0631 ,  G06Q50/01

    Abstract: Many content systems (e.g., social networks) present to a user a set of content items posted by other individuals. The user may selectively view content items that reinforce and are consistent with the user's perspective, creating an “echo chamber” effect. Conversely, content systems that selectively expose users to content items exhibiting contrary perspectives, and from individuals with no connection with the user, may alienate the user. Presented herein are techniques for recommending content items that present a different perspective from that of the user, and from individuals who share a similar profile to the user (e.g., alternative opinions from other individuals within the user's social circle or community). Optionally, opinions may be selected that do not directly oppose the user's perspective, but that are orthogonal with it. Such selective recommendations may persuade the user to consider contrary viewpoints that may alter the user's perspective while reducing user alienation.

    Abstract translation: 许多内容系统（例如，社交网络）向用户呈现由其他个人张贴的一组内容项目。 用户可以选择性地查看加强并与用户观点一致的内容项目，从而产生“回声室”效果。 相反，选择性地将用户暴露于具有相反视角的内容项目以及与用户没有连接的个人的内容系统可能疏远用户。 这里提出的技术是用于向与用户共享相似简档的个人（例如，来自用户的社交圈或社区内的其他个人的替代意见）推荐呈现与用户不同的观点的内容项的技术。 可选地，可以选择不直接反对用户观点的意见，但是与其正交。 这样的选择性建议可以说服用户考虑可以在减少用户异化的同时改变用户观点的相反观点。

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