Targeting the Benchmark: On Methodology in Current Natural Language Processing Research
Paper · 2021 · David Schlangen
Summary
This position paper questions a familiar NLP routine. A group proposes a language task with a dataset and a baseline. Others improve the scores, and the field moves on, usually without saying what this progress achieves. Schlangen offers no new data or models. Instead, he breaks the benchmark-driven method into parts: cognitive capabilities, the tasks thought to involve them, the datasets that exemplify those tasks, and the models built on the datasets. He then asks what each link can actually support.
He argues that NLP benchmarks differ from classic computing benchmarks in two ways. They serve as training material as well as a measuring tool, and all of them sample one underlying phenomenon, language use. A task is therefore valuable only if it points beyond itself to clearly specified, falsifiable capabilities. Models trained on it should also carry over to related tasks.
His diagnosis is that the field optimises individual tasks well but rarely examines transfer between them. He recommends renewed contact with linguistics and psychology, plus a structured curriculum of tasks.
Key points
- Figure 1, adapted from Schlangen (2019), connects capabilities, tasks, datasets and models. It shows that links between different tasks and models are seldom made explicit.
- The paper separates three kinds of task by their purpose: product tasks, annotation tasks, and benchmark tasks.
- It distinguishes verifying a dataset (checking annotation correctness) from validating it (arguing that it represents the task). Visual question answering is the worked example. The dataset of Antol et al. (2015) could be handled without images, a "language bias" noted by Jabri et al. (2016). Goyal et al. (2017) then built a less biased dataset.
- Following Popper, capability claims are more valuable the more precisely and falsifiably they are stated. Evaluating pre-trained models across several tasks at once can reveal capabilities the tasks have in common, as shown in the 2018 work of Devlin et al. and Peters et al. and in Wang et al. (2019a,b).
- The proposal is to arrange tasks in a hierarchy of complexity and inclusion. The benchmarking target would then be a model's developmental trajectory through it. The paper appeared in ACL-IJCNLP 2021 Short Papers, pp. 670–674.
Institutions
Fields, topics and concepts
📚 Shelves 4The field of science this work belongs to (OpenAlex fields).Computer Science · 19,503 worksArtificial Intelligence · 18,805 worksArts and Humanities · 17,959 worksLanguage and Linguistics · 17,789 works
🧭 Topics 1Research subjects and languages the work is about.Evaluation & benchmarks · 1,394 works
Cite
Cite as David Schlangen. 2021. Targeting the Benchmark: On Methodology in Current Natural Language Processing Research. Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 2: Short Papers).
@inproceedings{schlangen2021targeting,
title = {{Targeting the Benchmark: On Methodology in Current Natural Language Processing Research}},
author = {David Schlangen},
booktitle = {Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 2: Short Papers)},
year = {2021},
doi = {10.18653/v1/2021.acl-short.85},
eprint = {2007.04792},
archivePrefix = {arXiv},
url = {https://doi.org/10.18653/v1/2021.acl-short.85}
}References
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