开发者分享构建柔术领域AI教练工程实践
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2026年11月，有开发者分享了构建专业领域巴西柔术AI教练的全流程实践指南，详细拆解了利用视频与文档库在单张GPU上训练专业模型bjj-coach-7b-v3及重排序器的工程方案。该系统通过Whisper纠错与上下文头补充数据，结合知识图谱逻辑和Qwen2.5-VL-7B提取无声动作帧，并使用5路由listwise损失微调bge-reranker模型，最终导出为ONNX服务。
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- Hacker News · AISelectedA Complete Practical Guide to Building a Domain-Specific BJJ AI Coach
The author details a complete engineering pipeline for training a specialized Brazilian Jiu-Jitsu model, bjj-coach-7b-v3, and a reranker on a single GPU using video and document libraries. The system uses Whisper for transcription error correction and prepends context headers to enrich data, integrates knowledge graph logic with Qwen2.5-VL-7B to extract silent action frames, and fine-tunes bge-reranker with a 5-way listwise loss before exporting it as an ONNX service.
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