A First Context-Free Grammar Applied to Nawatl Corpora Augmentation
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2025
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| author | Guzmán-Landa, Juan-José Torres-Moreno, Juan-Manuel Figueroa-Saavedra, Miguel Quintana-Torres, Ligia Avendaño-Garrido, Martha-Lorena Ranger, Graham |
| author_facet | Guzmán-Landa, Juan-José Torres-Moreno, Juan-Manuel Figueroa-Saavedra, Miguel Quintana-Torres, Ligia Avendaño-Garrido, Martha-Lorena Ranger, Graham |
| contents | In this article we introduce a context-free grammar (CFG) for the Nawatl language. Nawatl (or Nahuatl) is an Amerindian language of the $π$-language type, i.e. a language with few digital resources, in which the corpora available for machine learning are virtually non-existent. The objective here is to generate a significant number of grammatically correct artificial sentences, in order to increase the corpora available for language model training. We want to show that a grammar enables us significantly to expand a corpus in Nawatl which we call $π$-\textsc{yalli}. The corpus, thus enriched, enables us to train algorithms such as FastText and to evaluate them on sentence-level semantic tasks. Preliminary results show that by using the grammar, comparative improvements are achieved over some LLMs. However, it is observed that to achieve more significant improvement, grammars that model the Nawatl language even more effectively are required. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_04945 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A First Context-Free Grammar Applied to Nawatl Corpora Augmentation Guzmán-Landa, Juan-José Torres-Moreno, Juan-Manuel Figueroa-Saavedra, Miguel Quintana-Torres, Ligia Avendaño-Garrido, Martha-Lorena Ranger, Graham Computation and Language Artificial Intelligence In this article we introduce a context-free grammar (CFG) for the Nawatl language. Nawatl (or Nahuatl) is an Amerindian language of the $π$-language type, i.e. a language with few digital resources, in which the corpora available for machine learning are virtually non-existent. The objective here is to generate a significant number of grammatically correct artificial sentences, in order to increase the corpora available for language model training. We want to show that a grammar enables us significantly to expand a corpus in Nawatl which we call $π$-\textsc{yalli}. The corpus, thus enriched, enables us to train algorithms such as FastText and to evaluate them on sentence-level semantic tasks. Preliminary results show that by using the grammar, comparative improvements are achieved over some LLMs. However, it is observed that to achieve more significant improvement, grammars that model the Nawatl language even more effectively are required. |
| title | A First Context-Free Grammar Applied to Nawatl Corpora Augmentation |
| topic | Computation and Language Artificial Intelligence |
| url | https://arxiv.org/abs/2510.04945 |