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Yong Yuan. I am Yong Yuan, an Algorithm Engineer in Kwai. His research interests cover large-scale image and video retrieval, approximate...

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Yongyuan.name news digest

  • 9 months

    LLM推荐系统 A Simple Training-free Approach for Recommendations using LLM

    思路动机
    LLM最新进展为推荐系统任务提供了有前途的新方法。当前最先进的方法依赖于微调 LLM 来实现最佳结果,但此过程成本高昂且带来了显著的工程复杂性。相反,绕过微调并直接使用 LLM 的方法资源密集程度较低,但往往无法完全捕获语义和协作信息,导致与经过微调的方法相比性能不佳。在本文中,提出了一种简单的无需训练的推荐方法 (STAR),这是一个利用 LLM 的框架,可应用于各种推荐任务而无需微调。
    comment: 这篇论文,提供了一个将语义与协同信息融合起来的视角,这是这篇论文提供的最大的启发性视角。...

  • 2 years

    MHA、MQA、GQA的差异与共性

    MHA、MQA、GQA差异
    MHA:Multi-Head Attention,QKV 三部分有相同数量的头,且一一对应。每次做 Attention,head_i 的 QKV 做好自己的运算就可以,输出时各个头加起来就行。
    MQA:Multi-Query Attention,让 Q 仍然保持原来的头数,但 K 和 V 只有一个头,相当于所有的 Q 头共享一组 K 和 V 头,所以叫做 Multi-Query 了。

  • 2 years

    论文阅读:点击率预估之长序列建模Clustering based Behavior Sampling

    SIGIR 2022 Clustering based Behavior Sampling with Long Sequential Data for CTR Prediction paper reading分享时记录的笔记。
    背景
    对当前target item预估时,序列建模要解决的两个主要问题:

  • 2 years

    搜索系统:视频搜索离线指标与在线指标

    背景
    搜索是一个以相关性为基础,辅助消费、权威、质量、时鲜等多目标的复杂系统。
    各位看官在搜索引擎输入一个Query=“如何在mate 40上连接wifi”,我们优先考虑的是排序的doc是否与Query相关,根据相关的程度,可以有不一样的定义:

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