Currently, his research field is mainly about corpus-based discourse analysis, especially metadiscourse analysis. His doctoral thesis entitled 'Metadiscourse use in Spanish academic writing: Exploring the interface of nativeness and expertise' obtained Sobresaliente (Cum Laude) from the Universidad de Murcia.

1. Yao, G., Carrió-Pastor, M. L. (2021, July 13). On the use of interactive metadiscourse in Spanish academic writing: Factors of nativeness and expertise. Presented at the 11th International Corpus Linguistics Conference (CL2021), Limerick: University of Limerick.

2. Yao, G., Carrió-Pastor, M. L. (2021, May 27). Metadiscourse analysis: A methodological review. Presented at the 3rd Metadiscourse Across Genres Conference (MAG2021), Castellón: Universitat Jaume I.

3. Yao, G., Carrió-Pastor, M. L. (2021, April 29). Interactive metadiscourse in Spanish academic writing: A comparative corpus-based analysis. Presented at the 12th Congreso Internacional de Lingüística de Corpus (CILC2021), Murcia: Universidad de Murcia.

4. Yao, G., Carrió-Pastor, M. L. (2021, April 16). A comparative study on the use of interactive metadiscourse by native Spanish scholars and Chinese learners of Spanish. Presented at the 38th International Conference of the Spanish Society for Applied Linguistics (AESLA), La Coruña: Universidade da Coruña.

5. Yao, G., Li, B. (2019, May 15). How do Chinese students of Spanish use reporting verbs in their master’s thesis? A concordance-based analysis. Presented at the 12th Congreso Internacional de Lingüística de Corpus (CILC2019), Valencia: Universitat de València.

6. Yao, G. (2018, June 13). Corpus-driven Approach to Lexical Semantic Change: A Case Study. Presented at the 9th Inter-Varietal Applied Corpus Studies International Biennial Conference (IVACS). Vallete, Malta: University of Malta.

7. Yao, G. (2018, May 9). El Aprendizaje del Vocabulario mediante Data-driven Learning en un Contexto de Español como Lengua Extranjera. Presented at the 10th Congreso Internacional de Lingüística de Corpus (CILC2018), Cáceres: Universidad de Extremadura.