| Challenge: | Semantic compositionality (SC) is defined as the phenomenon that the meaning of a complex linguistic unit can be composed of the meanings of its constituents. |
| Approach: | They propose to incorporate sememes into SC models and employ them in learning multiword expressions. |
| Outcome: | The proposed models achieve significant performance boost compared to baseline methods without sememe knowledge. |
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| Challenge: | Existing language modeling methods rely on large-scale text data to learn the sequential patterns of words. |
| Approach: | They propose to use sememes to represent the implicit semantics behind words for language modeling . they propose to employ sememe-driven language models to fine-grained semem-level semantics . |
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Do Neural Language Models Inferentially Compose Concepts the Way Humans Can? (2024.lrec-main)
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| Challenge: | a new study shows that language models and humans may rely on different approaches to represent and compose lexical items across sentence structure. |
| Approach: | They propose to use a dataset to test the performance of neural language models and humans on inferentially driven conceptual compositions. |
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Cross-lingual Lexical Sememe Prediction (D18-1)
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| Challenge: | Sememes are defined as the minimum semantic units of human languages . but most languages do not have sememe-based linguistic knowledge bases . a new framework is proposed to predict sememes for words in other languages based on semems . |
| Approach: | They propose a framework to model correlations between sememes and multi-lingual words in low-dimensional semantic space for sememe prediction. |
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Model-Free Context-Aware Word Composition (C18-1)
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| Challenge: | Word composition models do not take ambiguity of words and context into consideration for learning representations, and thus suffer from the inaccurate representation of semantics. |
| Approach: | They propose a model-free context-aware word composition model which takes the latent semantic information as global context for learning representations. |
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Quantifying Compositionality of Classic and State-of-the-Art Embeddings (2025.findings-emnlp)
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| Challenge: | Static word embeddings make strong claims about compositionality, but the SOTA generative models go too far in the other direction. |
| Approach: | a new study evaluates the compositionality of word embeddings by canonical correlation analysis . strong compositional signals are observed in later training stages across data modalities . |
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The Paradox of the Compositionality of Natural Language: A Neural Machine Translation Case Study (2022.acl-long)
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| Challenge: | Obtaining human-like performance in NLP is often argued to require compositional generalisation. |
| Approach: | They re-instantiate three compositionality tests from the literature and reformulate them for neural machine translation. |
| Outcome: | The proposed models are more compositional than models trained on more data, the authors show . they also show that some non-compositional behaviours are mistakes, whereas others reflect natural variation in data. |
Do Deep Neural Networks Capture Compositionality in Arithmetic Reasoning? (2023.eacl-main)
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Keito Kudo, Yoichi Aoki, Tatsuki Kuribayashi, Ana Brassard, Masashi Yoshikawa, Keisuke Sakaguchi, Kentaro Inui
| Challenge: | Using a pre-trained dataset, we examine how well recent neural models capture compositionality in symbolic reasoning tasks. |
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Montague semantics and modifier consistency measurement in neural language models (2025.coling-main)
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| Challenge: | Existing studies on distributional language models have been focused on linguistics and their relationship with semantic formalisms for decades. |
| Approach: | They propose a method for measuring compositional behavior in contemporary language embedding models by introducing three new tests inspired by Montague semantics. |
| Outcome: | The proposed method measures compositional behavior in language embedding models on adjectival modifier phenomena in adjective-noun phrases. |
Measuring and Narrowing the Compositionality Gap in Language Models (2023.findings-emnlp)
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| Challenge: | a language model can correctly answer all sub-problems but not generate the overall solution. |
| Approach: | They propose a method that asks itself and then answers follow-up questions to narrow the compositionality gap by reasoning explicitly instead of implicitly. |
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Categorizing Semantic Representations for Neural Machine Translation (2022.coling-1)
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| Challenge: | Modern neural machine translation models suffer limitation in compositional generalization, resulting in weakened translation performance on unseen compounds. |
| Approach: | They propose to introduce categorization to the contextualized representations to improve generalization by reducing sparsity and overfitting. |
| Outcome: | The proposed method reduces compositional generalization error rates by 24% on a dedicated MT dataset. |