text · image · video
Multimodal content understanding
At Meta, I work on LLMs that understand content across language, images, and video—connecting model behavior to real product experiences.
Meta · Multimodal LLMs
Huiyu (Yvette) ChenMachine Learning Engineer at Meta
I’m a machine learning engineer at Meta, based in Singapore. My current work focuses on multimodal content understanding across language, images, and video—plus the training, evaluation, and production systems that make it useful.
research brain, product hands

Now · 现在
Building multimodal content-understanding LLMs at Meta—across language, images, and video—while staying interested in the whole path from how a model learns to how a person experiences it.
Full profile ↗︎What I do · 研究方向
I’m happiest in the messy middle—where a promising idea has to become a reliable, measurable experience.
text · image · video
At Meta, I work on LLMs that understand content across language, images, and video—connecting model behavior to real product experiences.
train · evaluate · ship
I care about training, alignment, evaluation, and production systems that stay measurable, efficient, and understandable at real scale.
rank · retrieve · generate
I study how retrieval, ranking, semantic IDs, and language models converge—currently documented through a twenty-paper bilingual series.
A short timeline · 简历
details belong on LinkedIn 〰
Now
Building multimodal content-understanding LLM systems across text, images, and video.
Previously
Built production AI assistants for e-commerce across multiple markets. That chapter taught me how to carry an LLM idea from training to real users—without turning this homepage into a quarterly report.
Before that
Research training in NLP and machine learning, with a lasting habit of reading the appendix.
Off screen
Still learning, still moving, still evolving.
Speaking · 演讲
A practical talk about taking chatbot assistants from architecture decisions and model training to alignment and production scale.
Open 27 slides ↗︎APAC Data Innovation Summit 2026
I shared the system and model choices behind production-grade conversational AI—from retrieval and fine-tuning to alignment, evaluation, and deployment.
Topics · 专题入口
长专题、前沿增刊和可以直接动手的实验,都从这里进入。 每个专题有自己的路线,不会被最新文章流冲走。
FOUNDATION SERIES · 基础主线
从 BPR 的打分器,到 OneReason 的推荐推理:沿着同一个问题,读懂排序、序列、语言任务、Semantic ID 与统一生成。
SEASON 2 · 2026 前沿
从可学习 ID、级联推理和连续 Token,到页面生成、广告部署与泛化审计:追踪 2026 年真正改变问题边界的七篇论文。
INTERACTIVE LAB · 动手实验
从 BPR 到 Semantic ID、beam search 与 Trie 约束:可在页面里改 Python,也可下载 Notebook 或直接进入 Colab。
Latest writing · 最新文章
Elsewhere · 生活支线
A spinning planet of places I’ve been, plus the less polished thoughts that escape onto Xiaohongshu.