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Haoming Song

PROFILE

Haoming Song

Contributed to the huggingface/lerobot repository by developing and stabilizing advanced robot control features using Python, PyTorch, and deep learning techniques. Delivered a vision-language-action policy leveraging the Qwen2.5-VL backbone, enabling multimodal robot interaction and seamless integration with transformers v5.4.0. Addressed training stability by resolving torch.compile graph breaks and improving configuration management, including robust handling of pretrained processor overrides and validation logic. Enhanced experiment reproducibility and reduced maintenance risk through expanded test coverage and compatibility fixes across CUDA, MPS, and flash attention environments. The work emphasized backend development, model optimization, and reliable deployment pipelines for robotics and computer vision applications.

Overall Statistics

Feature vs Bugs

43%Features

Repository Contributions

7Total
Bugs
4
Commits
7
Features
3
Lines of code
4,704
Activity Months3

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026 – Enhanced training configurability and robustness for huggingface/lerobot. Delivered Flexible Action Overrides for Pretrained Processors, with safety validation to apply rename_map only when a pretrained checkpoint exists. Preserved pretrained processor pipelines when relative actions are enabled and aligned the registry key naming to relative_actions_processor. These changes reduce configuration errors, improve experiment reproducibility, and enable more flexible action processing in training pipelines.

May 2026

5 Commits • 2 Features

May 1, 2026

May 2026 highlights: Delivered EO-1 Vision-Language-Action policy for robot control using the Qwen2.5-VL backbone, enabling end-to-end configuration, training, and evaluation within LeRobot for richer multimodal robot interaction. Updated PI05 model to align with transformers v5.4.0 interface, improving compatibility and stability. Stabilized runtime by addressing torch.compile graph breaks and expanding test coverage for pi0/pi05. Hardened configuration robustness by fixing GR00TN15Config initialization and guarding the strict config decorator to maintain CI reliability. Resolved Eagle25VL model/processor crash across relevant transformer versions and improved processor initialization for compatibility with flash attention. Overall, these changes deliver more capable, reliable robot control and smoother upgrades with newer transformer ecosystems, reducing maintenance risk and accelerating feature delivery.

April 2026

1 Commits

Apr 1, 2026

April 2026 monthly summary focused on stabilizing Beta sampling during training in PyTorch's compiled mode and CUDA. Delivered a fix by relocating noise and time sampling into policy wrappers, preserving the standard training workflow while avoiding compilation errors in torch.compile on MPS and maintaining the CUDA training path. Validation and risk mitigation were performed via targeted pre-commit checks and pytest suites for the policies pi0 and pi05, ensuring continued CI readiness and minimal regression risk.

Activity

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Quality Metrics

Correctness82.8%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage48.6%

Skills & Technologies

Programming Languages

Python

Technical Skills

Data ProcessingDeep LearningMachine LearningModel OptimizationModel TestingNLPPyTorchPythonPython ProgrammingSoftware Developmentbackend developmentcomputer visionconfiguration managementdata modelingdeep learning

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

huggingface/lerobot

Apr 2026 Jun 2026
3 Months active

Languages Used

Python

Technical Skills

Data ProcessingDeep LearningMachine LearningPyTorchModel OptimizationModel Testing