bytedance/Dolphin
May 2025 – Dec 2025
8 Months active
Languages Used
PythonHTMLMarkdownNonetext
Technical Skills
Computer VisionDeep LearningMachine LearningPython DevelopmentAI DevelopmentAI Integration
fh2019ustc
PROFILE
Fh2019ustc
Fenghao developed and maintained the bytedance/Dolphin repository over eight months, delivering a document image parsing system with a two-stage layout analysis and content extraction pipeline. He enhanced the platform with multi-page PDF parsing, accelerated inference using TensorRT-LLM and vLLM, and device-aware model precision for CUDA and CPU environments. His work included benchmarking, dependency management, and multilingual documentation, ensuring robust deployment and user onboarding. Using Python, PyTorch, and CUDA, Fenghao addressed both backend performance and compliance, culminating in the Dolphin-v2 release with improved parsing and a new licensing model. The work demonstrated technical depth and strong cross-environment reliability.
Overall Statistics
Feature vs Bugs
70%Features
Repository Contributions
55Total
Bugs
8
Commits
55
Features
19
Lines of code
52,673
Activity Months8
Your Network
286 peopleSame Organization
@bytedance.com281
chao anMember
Bao JiangnanMember
bujianbinMember
caichengnanMember
Belinda CaoMember
htc070011Member
Rui CaoMember
Fengnan ChangMember
Alec HenxMember
Shared Repositories
5
Work History
December 2025
5 Commits • 2 Features
Dec 1, 2025December 2025 — Dolphin repository focused on feature delivery, deployment readiness, and compliance enhancements. Key feature: Dolphin-v2 with enhanced document parsing and flexible deployment. Licensing: replaced MIT with Qwen Research License Agreement to define terms for use, distribution, and IP rights. Maintenance: dependency hygiene and documentation updates to improve reproducibility and cross-environment deployment. There were no critical bugs fixed this month; the emphasis was on delivering robust features, improving environment parity, and reducing legal risk to accelerate production readiness. Technologies demonstrated: Python, PyTorch 2.6.0, dependency management, documentation, and cross-environment deployment practices.
5 Commits • 2 Features
Dec 1, 2025December 2025 — Dolphin repository focused on feature delivery, deployment readiness, and compliance enhancements. Key feature: Dolphin-v2 with enhanced document parsing and flexible deployment. Licensing: replaced MIT with Qwen Research License Agreement to define terms for use, distribution, and IP rights. Maintenance: dependency hygiene and documentation updates to improve reproducibility and cross-environment deployment. There were no critical bugs fixed this month; the emphasis was on delivering robust features, improving environment parity, and reducing legal risk to accelerate production readiness. Technologies demonstrated: Python, PyTorch 2.6.0, dependency management, documentation, and cross-environment deployment practices.
December 2025
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 (bytedance/Dolphin) — Release readiness and documentation-focused month. Key deliverable: changelog entry announcing an upcoming Dolphin model with scope, ongoing development, and future enhancements. Also updated README.md to align documentation with the release roadmap (commit fa8d6be4699746da302a29e713c734891d81e7a4). No critical bugs fixed this month; effort concentrated on communication, documentation, and planning for the model release. Business impact: improved stakeholder visibility, clearer expectations, and a solid foundation for the upcoming model release. Technologies/skills demonstrated: Git-based release documentation, changelog best practices, README maintenance, and cross-team release planning.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025 (bytedance/Dolphin) — Release readiness and documentation-focused month. Key deliverable: changelog entry announcing an upcoming Dolphin model with scope, ongoing development, and future enhancements. Also updated README.md to align documentation with the release roadmap (commit fa8d6be4699746da302a29e713c734891d81e7a4). No critical bugs fixed this month; effort concentrated on communication, documentation, and planning for the model release. Business impact: improved stakeholder visibility, clearer expectations, and a solid foundation for the upcoming model release. Technologies/skills demonstrated: Git-based release documentation, changelog best practices, README maintenance, and cross-team release planning.
October 2025
22 Commits • 5 Features
Oct 1, 2025October 2025 Dolphin monthly summary: Delivered a solid baseline release, expanded multilingual documentation, and enhanced demo tooling, while stabilizing the rendering and documentation pipelines. The work drove clear business value through faster onboarding, improved external-facing docs, and reduced maintenance friction, supported by disciplined commits and targeted bug fixes across the render and docs pipelines.
22 Commits • 5 Features
Oct 1, 2025October 2025 Dolphin monthly summary: Delivered a solid baseline release, expanded multilingual documentation, and enhanced demo tooling, while stabilizing the rendering and documentation pipelines. The work drove clear business value through faster onboarding, improved external-facing docs, and reduced maintenance friction, supported by disciplined commits and targeted bug fixes across the render and docs pipelines.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for bytedance/Dolphin focused on documentation accuracy and reliability. Key update: corrected the README demo link to the latest Hugging Face URL, ensuring users can access the live demo. This resolves user confusion and reduces potential support requests. No code changes affecting runtime; all work is in documentation artifacts, with traceable commits.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for bytedance/Dolphin focused on documentation accuracy and reliability. Key update: corrected the README demo link to the latest Hugging Face URL, ensuring users can access the live demo. This resolves user confusion and reduces potential support requests. No code changes affecting runtime; all work is in documentation artifacts, with traceable commits.
August 2025
2 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for bytedance/Dolphin. Delivered device-aware model precision optimization to boost CUDA performance while preserving CPU compatibility, and corrected a documentation issue by updating the README to point to the new Hugging Face Dolphin model space. These changes reduce runtime costs on CUDA-enabled devices and eliminate user confusion during setup, supporting faster adoption and trainer workloads.
2 Commits • 1 Features
Aug 1, 2025August 2025 monthly summary for bytedance/Dolphin. Delivered device-aware model precision optimization to boost CUDA performance while preserving CPU compatibility, and corrected a documentation issue by updating the README to point to the new Hugging Face Dolphin model space. These changes reduce runtime costs on CUDA-enabled devices and eliminate user confusion during setup, supporting faster adoption and trainer workloads.
August 2025
July 2025
9 Commits • 5 Features
Jul 1, 2025July 2025 (bytedance/Dolphin): Delivered core performance, usability, and benchmarking enhancements across the Dolphin project. Highlights include TensorRT-LLM accelerated inference to boost model throughput and responsiveness; optimization to save figure outputs as local files to simplify file management; introduction of a configurable temperature parameter for text generation to support more controllable and diverse outputs; added a ready-to-use HuggingFace Hub installation snippet to streamline model downloads; introduced Fox-Page Benchmark, a refined subset of the Fox dataset to strengthen benchmarking; and a bug fix clarifying chat function syntax after num_beams to prevent errors and future extensibility.
July 2025
9 Commits • 5 Features
Jul 1, 2025July 2025 (bytedance/Dolphin): Delivered core performance, usability, and benchmarking enhancements across the Dolphin project. Highlights include TensorRT-LLM accelerated inference to boost model throughput and responsiveness; optimization to save figure outputs as local files to simplify file management; introduction of a configurable temperature parameter for text generation to support more controllable and diverse outputs; added a ready-to-use HuggingFace Hub installation snippet to streamline model downloads; introduced Fox-Page Benchmark, a refined subset of the Fox dataset to strengthen benchmarking; and a bug fix clarifying chat function syntax after num_beams to prevent errors and future extensibility.
June 2025
14 Commits • 4 Features
Jun 1, 2025June 2025 monthly summary for bytedance/Dolphin: Delivered end-to-end enhancements across inputs (multi-page PDF parsing with image conversion and structured results), accelerated inference via vLLM and TensorRT-LLM backends, improved image/figure handling, and documentation/demos synchronization to improve accessibility and onboarding. These changes increase processing throughput, data quality, and developer productivity, enabling scalable mixed-format workflow processing and lower latency for inference workloads.
14 Commits • 4 Features
Jun 1, 2025June 2025 monthly summary for bytedance/Dolphin: Delivered end-to-end enhancements across inputs (multi-page PDF parsing with image conversion and structured results), accelerated inference via vLLM and TensorRT-LLM backends, improved image/figure handling, and documentation/demos synchronization to improve accessibility and onboarding. These changes increase processing throughput, data quality, and developer productivity, enabling scalable mixed-format workflow processing and lower latency for inference workloads.
June 2025
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 summary: Initiated the Dolphin Project with an initial commit that introduces a document image parsing model featuring a two-stage layout analysis and content extraction pipeline. This foundational work establishes the architecture for scalable automated document understanding and downstream data extraction. There were no major bugs fixed this month; focus was on project scaffolding and aligning the design with business value. Impact: sets the stage for rapid feature development, reduces manual processing, and enables future integrations with analytics pipelines. Tech stack and skills demonstrated: document image processing concepts, layout analysis, content extraction, version control, and cross-team collaboration.
May 2025
1 Commits • 1 Features
May 1, 2025May 2025 summary: Initiated the Dolphin Project with an initial commit that introduces a document image parsing model featuring a two-stage layout analysis and content extraction pipeline. This foundational work establishes the architecture for scalable automated document understanding and downstream data extraction. There were no major bugs fixed this month; focus was on project scaffolding and aligning the design with business value. Impact: sets the stage for rapid feature development, reduces manual processing, and enables future integrations with analytics pipelines. Tech stack and skills demonstrated: document image processing concepts, layout analysis, content extraction, version control, and cross-team collaboration.
Activity
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Quality Metrics
Correctness97.8%
Maintainability96.8%
Architecture97.4%
Performance96.0%
AI Usage53.8%
Skills & Technologies
Programming Languages
HTMLMarkdownNonePythontext
Technical Skills
AI DevelopmentAI IntegrationAI developmentAI integrationAPI DevelopmentCUDACode DocumentationCode MaintenanceComputer VisionDeep LearningDocumentationMachine LearningNLPNatural Language ProcessingNone
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