A query engine for L1-L2 parallel dependency treebanks

Arianna Masciolini

Keywords: L2 corpora, Universal Dependencies

TL;DR: Presentation of a query engine for retrieving errors from L1-L2 parallel dependency treebanks

Abstract: L1-L2 parallel dependency treebanks are learner corpora with interoperability as their main design goal. They consist of sentences produced by learners of a second language (L2) paired with native-like (L1) correction hypotheses. Rather than explicitly labelled for errors, these are annotated following the Universal Dependencies standard. This implies relying on tree queries for error retrieval. Work in this direction is, however, limited. We present a query engine for L1-L2 treebanks and evaluate it on two corpora, one manually validated and one automatically parsed.

Student Paper: Yes, the first author is a student