Hierarchy Builder: Organizing Textual Spans into a Hierarchy to Facilitate Navigation

09/18/2023

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by   Itay Yair, et al.

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Information extraction systems often produce hundreds to thousands of strings on a specific topic. We present a method that facilitates better consumption of these strings, in an exploratory setting in which a user wants to both get a broad overview of what's available, and a chance to dive deeper on some aspects. The system works by grouping similar items together and arranging the remaining items into a hierarchical navigable DAG structure. We apply the method to medical information extraction.