10. The method of claim 9 , further comprising causing display of documents that are determined to be classified into the first node, wherein the determination is made at least in part by the document triggering the at least one rule.
9. The method of claim 1 , further comprising: receiving an input to identify which documents in the plurality of documents are to be classified into the first node; in response to said input, analyzing the plurality of documents by the natural language model, using the at least one rule, to determine which documents are to be classified into the first node; and causing display of the documents that are determined to be classified into the first node.