Black Big Boxes: Tracing Adjective Order Preferences in Large Language Models
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| Format: | Preprint |
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2024
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| _version_ | 1866917258209525760 |
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| author | Jumelet, Jaap Bylinina, Lisa Zuidema, Willem Szymanik, Jakub |
| author_facet | Jumelet, Jaap Bylinina, Lisa Zuidema, Willem Szymanik, Jakub |
| contents | In English and other languages, multiple adjectives in noun phrases follow intricate ordering patterns. These patterns have been widely studied in linguistics and provide a useful test case for assessing how language models (LMs) acquire graded and context-sensitive word order preferences. We ask to what extent adjective order preferences in LMs can be explained by distributional learning alone, and where models exhibit behaviour that goes beyond surface co-occurrence patterns. We find that LM predictions are largely explained by training data frequencies: simple n-gram statistics account for much of their behaviour and closely mirror the preferences learned during training. However, by analysing learning dynamics we reveal that models also generalize robustly to unseen adjective combinations, indicating that their behaviour cannot be reduced to memorization of observed orders alone. Moreover, we show how LMs leverage word order cues from sentence context, demonstrating with feature attribution methods that contextual cues are an additional driver of adjective order in LM output. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2407_02136 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Black Big Boxes: Tracing Adjective Order Preferences in Large Language Models Jumelet, Jaap Bylinina, Lisa Zuidema, Willem Szymanik, Jakub Computation and Language In English and other languages, multiple adjectives in noun phrases follow intricate ordering patterns. These patterns have been widely studied in linguistics and provide a useful test case for assessing how language models (LMs) acquire graded and context-sensitive word order preferences. We ask to what extent adjective order preferences in LMs can be explained by distributional learning alone, and where models exhibit behaviour that goes beyond surface co-occurrence patterns. We find that LM predictions are largely explained by training data frequencies: simple n-gram statistics account for much of their behaviour and closely mirror the preferences learned during training. However, by analysing learning dynamics we reveal that models also generalize robustly to unseen adjective combinations, indicating that their behaviour cannot be reduced to memorization of observed orders alone. Moreover, we show how LMs leverage word order cues from sentence context, demonstrating with feature attribution methods that contextual cues are an additional driver of adjective order in LM output. |
| title | Black Big Boxes: Tracing Adjective Order Preferences in Large Language Models |
| topic | Computation and Language |
| url | https://arxiv.org/abs/2407.02136 |