PeerJ Author & Reviewer 280 Points Contributions by role Author 235 Reviewer 45 Contributions by subject area Artificial Intelligence Data Science Network Science and Online Social Networks Social Computing Computational Linguistics Data Mining and Machine Learning Natural Language and Speech Sentiment Analysis Text Mining Neural Networks Kai-Cheng Yang PeerJ Author & Reviewer Summary Computational Linguistics Network Science & Online Social Networks Social Computing Past or current institution affiliations Indiana University Northeastern University PeerJ Contributions Articles 2 July 1, 2022 How Twitter data sampling biases U.S. voter behavior characterizations Kai-Cheng Yang, Pik-Mai Hui, Filippo Menczer https://doi.org/10.7717/peerj-cs.1025 March 30, 2021 Persona2vec: a flexible multi-role representations learning framework for graphs Jisung Yoon, Kai-Cheng Yang, Woo-Sung Jung, Yong-Yeol Ahn https://doi.org/10.7717/peerj-cs.439