Recursive Programs for Document Spanners
international conference on database theory, 2019.
EI
Abstract:
A document spanner models a program for Information Extraction (IE) as a function that takes as input a text document (string over a finite alphabet) and produces a relation of spans (intervals in the document) over a predefined schema. A well studied language for expressing spanners is that of the regular spanners: relational algebra ove...More
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