AutoX_Recommend, NLP内容召回

代码结构可以参考:
https://github.com/4paradigm/AutoX/blob/master/autox/autox_recommend/recall_and_rank/recalls/history_recall.py

The issue references a history_recall.py file for structure. Start by examining that file in the autox/autox_recommend/recall_and_rank/recalls/ directory to understand the existing recall framework. Then, research NLP content recall methods to design a new module. Implementation will likely involve creating a new class or function in the recalls module, integrating with the project's data pipeline.

Do mô hình lập chỉ mục viết ra từ nội dung của issue.