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Elon Musk announced that X’s home timeline will use a new AI model to predict how long users spend on posts and prioritize posts with high completion rates. A second change affects the earlier retrieval stage, which finds relevant posts from accounts a user does not follow and determines which of those posts can enter the timeline.
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IT之家 10 月 20 日消息，埃隆 · 马斯克今天宣布，X 平台主页“时间线”推荐算法迎来两项更新：引入全新 AI 排序模型，更准确地预测用户停留时长，算法将优先推荐完读率高的贴文。
随后 AI 领域研究人士 Rohan Paul 解读道，本次改进之前，X 平台就将贴文完读率列为排序模型预测的用户行为指标之一，新模型主要是优化已有系统。
同时，第二项改动发生在更靠前的检索阶段。该系统会将用户和每篇贴文转换为向量，再从用户未关注的账号中找出与其最接近的内容。用户关注账号发布的贴文则由另一套独立系统提供，因此该系统决定哪些陌生人的贴文可以进入时间线（IT之家注：Timeline;TL）。