为碎片信息进行主题推荐呢？比如用户设定一个主题描述，然后以后的碎片信息，推荐与哪些主题，相关，让用户在这个基础上，选择，并关联。感觉这个还是NLP的模型

内核是智能推荐算法？

The recommendation of similar objects is done based on the similarity between object attributes.

The objects here are like, documents and each document inside Zotero.

The attributes here are

Attributes set by the user to the document or other objects on the edit page

Attributes given by the act of double chaining

For example, if node A of a mind map has a document double-linked to its child node B, then the document is given the attribute "node A->node B".