- Yuichiro Kobayashi (2016). Investigating metadiscourse markers in Asian Englishes: A corpus-based approach. NINJAL Research Papers, 11, 25-36.
- An advantage of corpus-based language studies is that global descriptions of linguistic texts can be obtained by examining a broad range of linguistic features. However, multivariate statistical techniques are required to analyze the multiple linguistic features found in a number of texts. This study compared the strengths and weaknesses of several multivariate statistical techniques, thereby demonstrating the effectiveness of using heat map with hierarchical clustering as a powerful method for visualizing multivariate data. Explanations are also provided for how these techniques can be used in the R programming language as well as indicating how the results obtained can be interpreted.
- Yuichiro Kobayashi (2016). Investigating metadiscourse markers in Asian Englishes: A corpus-based approach. Language in Focus: International Journal of Studies in Applied Linguistics and ELT, 2(1), 19-35.
- Yuichiro Kobayashi (2014). Computer-aided error analysis of L2 spoken English: A data mining approach. Proceedings of the Conference on Language and Technology 2014, 127-134.