Inbatchsample

[zerolovesea]

Pull Request / 拉取请求

What does this PR do? / 这个PR做了什么？

增加 batch 内负采样支持

Briefly describe your changes / 简要描述您的更改

增加了in batch neg sampling，适配了trainer，并增加了单元测试

Type of Change / 变更类型

• 🐛 Bug fix / Bug修复
• ✨ New model/feature / 新模型/功能
• 📝 Documentation / 文档
• 🔧 Maintenance / 维护

Related Issues / 相关Issues

Fixes #(issue number) / 修复 #(issue编号)

#111

How to Test / 如何测试

python tests/test_inbatch_sampling.py

Checklist / 检查清单

• Code follows project style (ran python config/format_code.py) / 代码遵循项目风格（运行了格式化脚本）
• Added tests for new functionality / 为新功能添加了测试
• Updated documentation if needed / 如需要已更新文档
• All tests pass locally / 所有测试在本地通过

Additional Notes / 附加说明

Any other information for reviewers / 给审查者的其他信息

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

❌ Patch coverage is 85.50725% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 35.74%. Comparing base (c30a1ab) to head (26caef9).
⚠️ Report is 16 commits behind head on main.

Files with missing lines	Patch %	Lines
torch_rechub/trainers/match_trainer.py	84.84%	5 Missing ⚠️
torch_rechub/utils/match.py	88.88%	3 Missing ⚠️
torch_rechub/basic/loss_func.py	77.77%	2 Missing ⚠️
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Additional details and impacted files

@@            Coverage Diff             @@
##             main     #128      +/-   ##
==========================================
- Coverage   36.39%   35.74%   -0.66%     
==========================================
  Files          52       53       +1     
  Lines        3283     3500     +217     
==========================================
+ Hits         1195     1251      +56     
- Misses       2088     2249     +161     

Flag	Coverage Δ
unittests	35.74% <85.50%> (-0.66%)	⬇️

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