叶子，同济大学外国语学院博士后，浙江大学博士。主要研究领域为计量语言学，重点关注语言中的测量问题。参与国家社科一项。目前主要从事老年人产出话语的文本计量指标研究。

Tsy YIH (Zi YE) is a postdoctoral researcher at the School of Foreign Languages, Tongji University. He earned his doctoral degree from Zhejiang University. His main research area is quantitative linguistics, with a special interest in the measurement problem in linguistics. He participated in a project funded by the National Social Science Foundation in China. His current project is on the textual quantitative indicators of older adults' speech.