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Learning and Evaluating General Linguistic Intelligence

Paper · 2019 · Dani Yogatama, Cyprien de Masson d'Autume, Jerome Connor et al.

Summary

The authors argue that standard leaderboard scores overstate progress in NLP. They propose a notion of "general linguistic intelligence": a system's capacity to reuse what it already knows about a language's words, grammar, meaning and usage so it can master unfamiliar tasks from few examples. To measure this, they add a metric based on online (prequential) coding, following Blier & Ollivier (2018). It scores how many task-specific examples a model needs before it performs well, rather than only its final accuracy.

They test pretrained BERT and an ELMo-based BiDAF model on several reading-comprehension, semantic role labeling, relation extraction and inference datasets, under four setups:

  • fine-tuning,
  • transfer between related tasks,
  • cross-dataset generalization,
  • continual learning.

Both models still need substantial in-domain data and gain clearly from related-task pretraining. However, without fine-tuning they transfer poorly between datasets of the same task, which suggests overfitting to quirks of particular datasets such as SQuAD. They also forget earlier tasks when trained sequentially. The study matters because it reframes evaluation around sample efficiency and robustness. It also points to remedies such as memory modules, meta-learning and better curricula.

Key points

  • Models compared:
    • BERT base: 12 Transformer layers, 12 attention heads, 768 hidden units, about 110M parameters.
    • ELMo: about 100M parameters, with a 300-dimensional BiLSTM and a BiDAF network on top.
  • Datasets: SQuAD 1.1, TriviaQA (Web section), QuAC, QA-SRL, the zero-shot relation extraction set (QA-ZRE), MNLI and SNLI. Most tasks are cast as span prediction.
  • New metric: an online codelength measure that captures how fast a model adapts, rewarding sample efficiency on top of conventional end-of-training scores.
  • Training order matters: sequential (continual) training causes catastrophic forgetting. In contrast, a random curriculum over 200,000 iterations lets BERT keep competence across all tasks, with these results:
ModelSQuADMNLISNLIQA-ZRE
BERT85.481.188.088.2
ELMo78.369.177.988.5
  • Proposed directions: elastic weight consolidation, progress and compress, neural cache and dynamic evaluation, meta-learning (with the codelength as a possible objective), and Population Based Training for designing curricula.

Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.

 Institutions

 Fields, topics and concepts

Cite

Cite as Dani Yogatama, Cyprien de Masson d'Autume, Jerome Connor, Tomas Kocisky, Mike Chrzanowski, Lingpeng Kong, Angeliki Lazaridou, Wang Ling, Lei Yu, Chris Dyer and Phil Blunsom. 2019. Learning and Evaluating General Linguistic Intelligence. arXiv:1901.11373.

The paper itself, not this page. BibTeX from the library's record of the work. DOI 10.48550/arxiv.1901.11373 · arXiv 1901.11373

@misc{yogatama2019learning,
  title = {{Learning and Evaluating General Linguistic Intelligence}},
  author = {Dani Yogatama, Cyprien {de Masson d'Autume}, Jerome Connor, Tomas Kocisky, Mike Chrzanowski, Lingpeng Kong, Angeliki Lazaridou, Wang Ling, Lei Yu, Chris Dyer and Phil Blunsom},
  year = {2019},
  doi = {10.48550/arxiv.1901.11373},
  eprint = {1901.11373},
  archivePrefix = {arXiv},
  url = {https://doi.org/10.48550/arxiv.1901.11373}
}

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