Intrinsic Task-based Evaluation for Referring Expression Generation

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Hauptverfasser: Chen, Guanyi, Same, Fahime, van Deemter, Kees
Format: Preprint
Veröffentlicht: 2024
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author Chen, Guanyi
Same, Fahime
van Deemter, Kees
author_facet Chen, Guanyi
Same, Fahime
van Deemter, Kees
contents Recently, a human evaluation study of Referring Expression Generation (REG) models had an unexpected conclusion: on \textsc{webnlg}, Referring Expressions (REs) generated by the state-of-the-art neural models were not only indistinguishable from the REs in \textsc{webnlg} but also from the REs generated by a simple rule-based system. Here, we argue that this limitation could stem from the use of a purely ratings-based human evaluation (which is a common practice in Natural Language Generation). To investigate these issues, we propose an intrinsic task-based evaluation for REG models, in which, in addition to rating the quality of REs, participants were asked to accomplish two meta-level tasks. One of these tasks concerns the referential success of each RE; the other task asks participants to suggest a better alternative for each RE. The outcomes suggest that, in comparison to previous evaluations, the new evaluation protocol assesses the performance of each REG model more comprehensively and makes the participants' ratings more reliable and discriminable.
format Preprint
id arxiv_https___arxiv_org_abs_2402_07432
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Intrinsic Task-based Evaluation for Referring Expression Generation
Chen, Guanyi
Same, Fahime
van Deemter, Kees
Computation and Language
Recently, a human evaluation study of Referring Expression Generation (REG) models had an unexpected conclusion: on \textsc{webnlg}, Referring Expressions (REs) generated by the state-of-the-art neural models were not only indistinguishable from the REs in \textsc{webnlg} but also from the REs generated by a simple rule-based system. Here, we argue that this limitation could stem from the use of a purely ratings-based human evaluation (which is a common practice in Natural Language Generation). To investigate these issues, we propose an intrinsic task-based evaluation for REG models, in which, in addition to rating the quality of REs, participants were asked to accomplish two meta-level tasks. One of these tasks concerns the referential success of each RE; the other task asks participants to suggest a better alternative for each RE. The outcomes suggest that, in comparison to previous evaluations, the new evaluation protocol assesses the performance of each REG model more comprehensively and makes the participants' ratings more reliable and discriminable.
title Intrinsic Task-based Evaluation for Referring Expression Generation
topic Computation and Language
url https://arxiv.org/abs/2402.07432