Blog
Blog Posts
Welcome to my blog! Here I share my thoughts, research insights, and experiences in AI and machine learning.
Generative AI and LLM
What If AI Was Never Meant to Learn From Us
What If AI Was Never Meant to Learn From Us
March 23, 2026 15-20 min read
If human data isn't the optimal medium — would we even know? We've spent years feeding models everything humans have ever written, and just assumed...
地基没人查过，楼已经一百层了
Reward Hacking & Jailbreak Research
The Evolution of Reward Hacking and Jailbreak Research in AI
March 03, 2026 25-30 min read
From specification gaming in classical RL to deceptive alignment and jailbreaks in LLMs—a survey of how reward hacking has become a central challenge in AI...
LLM Reasoning
Reasoning in Large Language Models: A Research-Centric Overview
May 25, 2025 15-25 min read
“Can LLMs reason?” is one of those questions that generates more heat than light, mostly because people mean very different things by “reasoning.” This post...
AI Agents
The Web Is Not a Neutral Environment for Agents
The Web Is Not a Neutral Environment for Agents
March 15, 2026 5-10 min read
Browser agents are getting better fast, but the web is full of things that try to steer behavior. If that already works on humans, why...
Featured Series: Ranking & Recommendation Systems
Long Sequence User Modeling in Ads Ranking
Modeling Long User Histories for Ads Ranking
March 07, 2026 20-30 min read
How ads ranking systems went from aggregated feature counts to retrieve-and-compress architectures that handle 10,000+ user events under millisecond latency constraints.
Sequential Learning in Ranking AI
Sequential Learning in Recommendation Systems: From Markov Chains to Transformers
January 22, 2025 20-30 min read
A comprehensive guide to sequence-based recommendation techniques and key research papers, tracing the evolution from early statistical methods to modern transformer-based architectures
Contemporary Recommendation Systems
Contemporary RecSys: Industry-Scale Architectures & Multimodal Systems (2020–2025)
January 20, 2025 15-25 min read
This era represents a pivotal shift toward production-ready, billion-scale architectures that power today’s major platforms. This comprehensive guide covers the essential papers that define contemporary...
Deep Learning Era in Recommendation Systems
Deep Learning Era of Ranking & Recommendation Systems: Must-Read Papers (2016–2020)
January 20, 2025 15-25 min read
Explore how deep learning transformed ranking and recommendation systems, from Wide & Deep to BERT4Rec, covering core technologies powering platforms like YouTube, Facebook, and Amazon...
Classic Foundations Recommendation Systems
Classic Foundational Papers on Ranking & Recommendation Systems
January 15, 2025 15-20 min read
Ranking and recommendation systems power everything from Google Search to Netflix suggestions. While today’s systems use deep learning and large language models (LLMs), their foundations...
More posts coming soon! Feel free to reach out if you have any questions or suggestions.