Behavioural vs. Representational Systematicity in End-to-End Models: An Opinionated Survey
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Abstract (arXiv)
A core aspect of compositionality, systematicity is a desirable property in ML models as it enables strong generalization to novel contexts. This has led to numerous studies proposing benchmarks to assess systematic generalization, as well as models and training regimes designed to enhance it. Many of these efforts are framed as addressing the challenge posed by Fodor and Pylyshyn. However, while they argue for systematicity of representations, existing benchmarks and models primarily focus on the systematicity of behaviour. We emphasize the crucial nature of this distinction. Furthermore, building on Hadley's (1994) taxonomy of systematic generalization, we analyze the extent to which behavioural systematicity is tested by key benchmarks in the literature across language and vision. Finally, we highlight ways of assessing systematicity of representations in ML models as practiced in the field of mechanistic interpretability.
Key facts. Cited by 5 papers in the map (data through 7 Oct 2026). Builds on 45 of its 95 references that are in the map. First posted on arXiv 4 Jun 2025.
Builds on
45 of 95 references.
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33 more
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Built on by
Citing papers per year: 2025: 4; 2026: 1.
5 papers.
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- 2025Towards Integrated Alignmentcited by 0
- 2026Revisiting the Systematicity in Negation in the Era of In-Context Learningcited by 0
- 2026Revisiting the Systematicity in Negation in the Era of In-Context Learning15 Jun 2026
- 2025DecompSR: A dataset for decomposed analyses of compositional multihop spatial reasoning4 Nov 2025
- 2025How Do Language Models Compose Functions?2 Oct 2025
- 2025Do Bias Benchmarks Generalise? Evidence from Voice-based Evaluation of Gender Bias in SpeechLLMs24 Sep 2025
- 2025Towards Integrated Alignment8 Aug 2025