系统为用户更新主题的频率是每周一次,这限制了信息的共享频率。换句话说,该 API 通过不太频繁地提供主题更新来帮助减少数字“指纹”的收集。
系统仅会针对之前观察到某个主题的 API 调用方为同一用户返回这个主题。此方法有助于降低实体了解(或分享)它们尚未观察到的用户兴趣相关信息的可能性。
用户兴趣推断处于将在设备上进行:与用户访问了哪些网站或应用相关的信息不会离开设备,从而保护用户隐私。与这种模型相比,目前常用的模型都在设备外部的广告技术平台服务器上发送和处理用户的跨网站或跨应用数据。某些类型的处理将继续保留在广告技术平台服务器上,例如在个性化和广告优化模型中使用 Topics API 提供的信号进行广告选择。
用户和开发者控制功能、透明度和停用选项
用户应该能够了解 Topics API 的用途,了解相关表述、该 API 何时正在使用中,并且能够获得启用或停用该 API 的控件。
借助该 API 人类可读的分类,用户可以了解和控制系统可能为其推荐的主题。
用户可以移除不希望 Topics API 与广告客户或发布商共享的主题,系统也可以提供相应的控件,让用户了解该 API 以及如何启用或停用它。除了用户可以选择停用之外,您还可以为自己的网站或应用选择停用 Topics。
[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["没有我需要的信息","missingTheInformationINeed","thumb-down"],["太复杂/步骤太多","tooComplicatedTooManySteps","thumb-down"],["内容需要更新","outOfDate","thumb-down"],["翻译问题","translationIssue","thumb-down"],["示例/代码问题","samplesCodeIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2024-09-13。"],[[["The Topics API is a privacy-focused mechanism for interest-based advertising, available on web and Android."],["It uses on-device processing to infer user interests, represented as coarse-grained, human-readable topics."],["Topics are shared with advertisers to enable relevant ad selection without revealing detailed browsing history."],["Users have control over their topics and can opt out, ensuring transparency and privacy."],["The API aims to balance user privacy with ad relevance, supporting both users and content creators."]]],["The Topics API is a privacy-preserving mechanism for interest-based advertising (IBA) on web and Android. It infers user interests from on-device activity and represents them as coarse-grained, human-readable topics (e.g., \"Fitness\"). These topics are shared with advertisers to improve ad relevance, allowing publishers to monetize their platforms while protecting user privacy. The API limits cross-site tracking by returning topics randomly, infrequently, and only to callers who have observed the topic previously. Users and developers can opt-out and manage shared topics.\n"]]