Reporting score distributions makes a difference. Performance study of LSTM-networks for sequence tagging.

Autor/inn/en	Reimers, Nils; Gurevych, Iryna
Institution	Association for Computational Linguistics
Titel	Reporting score distributions makes a difference. Performance study of LSTM-networks for sequence tagging.
Quelle	Aus: The Conference on Empirical Methods in Natural Language Processing (EMNLP 2017): Proceedings of the Conference, September 9-11, 2017, Copenhagen, Denmark. Stroudsburg, PA; PA: Association for Computational Linguistics (2017) S. 338-348 PDF als Volltext kostenfreie Datei Link als defekt meldenVerfügbarkeit
Sprache	englisch
Dokumenttyp	online; Sammelwerksbeitrag
Schlagwörter	Spracherkennung; Computerlinguistik
Abstract	In this paper we show that reporting a single performance score is insufficient to compare non-deterministic approaches. We demonstrate for common sequence tagging tasks that the seed value for the random number generator can result in statistically significant (p ( 10^-4) differences for state-of-the-art systems. For two recent systems for NER, we observe an absolute difference of one percentage point F1-score depending on the selected seed value, making these systems perceived either as state-of-the-art or mediocre. Instead of publishing and reporting single performance scores, we propose to compare score distributions based on multiple executions. Based on the evaluation of 50.000 LSTM-networks for five sequence tagging tasks, we present network architectures that produce both superior performance as well as are more stable with respect to the remaining hyperparameters. The full experimental results are published in (Reimers and Gurevych, 2017). The implementation of our network is publicly available. (DIPF/Orig.).
Erfasst von	DIPF \| Leibniz-Institut für Bildungsforschung und Bildungsinformation, Frankfurt am Main
Update	2023/1