Lexical Generalization Improves with Larger Models and Longer Training
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Abstract (arXiv)
While fine-tuned language models perform well on many tasks, they were also shown to rely on superficial surface features such as lexical overlap. Excessive utilization of such heuristics can lead to failure on challenging inputs. We analyze the use of lexical overlap heuristics in natural language inference, paraphrase detection, and reading comprehension (using a novel contrastive dataset), and find that larger models are much less susceptible to adopting lexical overlap heuristics. We also find that longer training leads models to abandon lexical overlap heuristics. Finally, we provide evidence that the disparity between models size has its source in the pre-trained model
Key facts. Cited by 9 papers in the map (data through 14 Oct 2026). Builds on 42 of its 64 references that are in the map. First posted on arXiv 23 Oct 2022.
Builds on
42 of 64 references.
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30 more
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Built on by
Citing papers per year: 2023: 4; 2024: 1; 2025: 1; 2026: 3.
9 papers.
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- 2023QAID: Question Answering Inspired Few-shot Intent Detectioncited by 5
- 2024On the Effect of (Near) Duplicate Subwords in Language Modellingcited by 5
- 2025SeqPE: Transformer with Sequential Position Encodingcited by 2
- 2026Names Don't Matter: Symbol-Invariant Transformer for Open-Vocabulary Learningcited by 1
- 2026On the Persistent Effects of Lexicality in Large Language Modelscited by 1
- 2023Measuring and Improving Attentiveness to Partial Inputs with Counterfactualscited by 0
- 2026Memorize Theorems, Not Instances: Probing SFT Generalization through Mathematical Reasoningcited by 0
- 2026On the Persistent Effects of Lexicality in Large Language Models1 Jun 2026
- 2026Memorize Theorems, Not Instances: Probing SFT Generalization through Mathematical Reasoning10 May 2026
- 2026Names Don't Matter: Symbol-Invariant Transformer for Open-Vocabulary Learning30 Jan 2026
- 2025SeqPE: Transformer with Sequential Position Encoding16 Jun 2025
- 2024On the Effect of (Near) Duplicate Subwords in Language Modelling9 Apr 2024
- 2023Measuring and Improving Attentiveness to Partial Inputs with Counterfactuals16 Nov 2023
- 2023Guiding LLM to Fool Itself: Automatically Manipulating Machine Reading Comprehension Shortcut Triggers24 Oct 2023
- 2023Few-shot Fine-tuning vs. In-context Learning: A Fair Comparison and Evaluation26 May 2023
- 2023QAID: Question Answering Inspired Few-shot Intent Detection2 Mar 2023