Projects

Building systems at scale and pushing research boundaries

~/amazon/prime-video/harmonia
Kubrick project demo
In Production

Large-Scale Online Recommendation & Distribution Platform

Prime Video Core Tech · Amazon, Seattle

Oct 2024 – Present

Architect and maintain the recommendation carousel system powering Prime Video’s genre customer experience across millions of users globally. Built a universal recommendation engine that unifies content ranking, retrieval, and personalization into a single distribution platform serving real-time inference at scale.

Kotlin AWS Distributed Cache SageMaker ML Ranking DynamoDB Spark EMR Cluster EMR Serverless Bedrock A/B Testing
10M+ daily requests 200M+ customers served
~/research/kubrick-agent
Kubrick project demo
Research · arXiv 2408.10453

Kubrick: Multimodal Agent Collaborations for Synthetic Video Generation

Liu He, Yizhi Song, Hejun Huang, Pinxin Liu, Yunlong Tang, Daniel Aliaga, Xin Zhou

Baidu Research Institute · Aug 2024

Pioneered the first multimodal VLM agent video generation pipeline. Multiple LLM/VLM agents collaborate as Director, Animator, and Compositor; decomposing natural language scripts into 3D scene graphs, generating Blender API, and rendering physically-grounded synthetic videos without manual CGI intervention.

GPT-4V LLM Agents Blender API Python 3D Rendering Scene Graphs Multi-Agent
3+ VLM agents Zero manual CGI 1st agent-based pipeline
~/baidu/apollo/cement-truck
Autonomous cement truck
In Production

Autonomous Cement Truck: Planning, Control & Perception

Robotics and Autonomous Driving Lab, Baidu USA

Construction Engineering Corp. LTD · 2024

End-to-end autonomous cement truck deployment on Baidu’s Apollo platform. Customized the full-stack: perception (LiDAR + camera fusion), planning (hybrid A* + lattice), control (MPC-based trajectory tracking), and calibration modules. Validated driving data across open-road and closed-loop scenarios.

C++ Python Apollo ROS LiDAR MPC Hybrid A* Real car testing
Cement Truck Automation Full-Stack autonomy
~/undergrad/mechanical-product-design
Undergraduate mechanical product design project
Undergraduate Project

Undergraduate Mechanical Product Design

Undergraduate design, prototyping, and demo work

Two product design video demos

A small collection of undergraduate mechanical product design projects covering assistive robotics and self-service product concepts, with emphasis on concept development, mechanical structure design, prototyping, and final presentation.

Assistant Robot for Patients with Cerebral Palsy Self-service Hot Dog Maker
Mechanical Design Product Design Prototyping Assistive Robot CAD Undergraduate