Abstract
Studying syntactic patterns in naturally occurring language requires a large parsed corpus, but manual annotation is costly and difficult to scale. Thai has a manually annotated dependency treebank for training and evaluating parsers, but lacks a large automatically parsed corpus for quantitative syntactic research. We present ThaiTrees, a 342M-token corpus drawn from news, Wikipedia, spoken transcripts, and social media. We develop a reproducible pipeline for cleaning, processing, and parsing Thai text under the Universal Dependencies framework. The resulting corpus makes grammatical relations searchable and supports the study of syntactic distributions. We release a frequency lexicon and CoNLL-U parses in machine-readable formats suitable for both AI-assisted and conventional programmatic analysis.
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Publication details
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- Open access
- Green open access
Cite this article
APA 7
Rutherford, A. T., & Thientong, P. (2026). ThaiTrees: Thai Syntactic Dependency Trees Across Domains. https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains
MLA 9
Rutherford, Attapol T., and Papatchol Thientong. "ThaiTrees: Thai Syntactic Dependency Trees Across Domains." https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains.
Chicago (author–date)
Rutherford, Attapol T., and Papatchol Thientong. 2026. "ThaiTrees: Thai Syntactic Dependency Trees Across Domains." https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains.
Harvard
Rutherford, A. T. and Thientong, P. (2026) 'ThaiTrees: Thai Syntactic Dependency Trees Across Domains', Available at: https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains.
Vancouver
Rutherford AT, Thientong P. ThaiTrees: Thai Syntactic Dependency Trees Across Domains. https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains
IEEE
A. T. Rutherford, and P. Thientong, "ThaiTrees: Thai Syntactic Dependency Trees Across Domains," https://omanscience.com/en/articles/thaitrees-thai-syntactic-dependency-trees-across-domains.