David Håkansson


2023

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Parser Evaluation for Analyzing Swedish 19th-20th Century Literature
Sara Stymne | Carin Östman | David Håkansson
Proceedings of the 24th Nordic Conference on Computational Linguistics (NoDaLiDa)

In this study, we aim to find a parser for accurately identifying different types of subordinate clauses, and related phenomena, in 19th–20th-century Swedish literature. Since no test set is available for parsing from this time period, we propose a lightweight annotation scheme for annotating a single relation of interest per sentence. We train a variety of parsers for Swedish and compare evaluations on standard modern test sets and our targeted test set. We find clear trends in which parser types perform best on the standard test sets, but that performance is considerably more varied on the targeted test set. We believe that our proposed annotation scheme can be useful for complementing standard evaluations, with a low annotation effort.