Comparative Analysis of Japan and the US Cybersecurity Related Newspaper Articles: A Content and Sentiment Analysis Approach. - Piyush Ghasiya; Koji Okamura (AINA, 2020)

Investigating Cybersecurity News Articles by Applying Topic Modeling Method. - Piyush Ghasiya; Koji Okamura (ICOIN, 2021)

Investigating COVID-19 News Across Four Nations: A Topic Modeling and Sentiment Analysis Approach. - Piyush Ghasiya; Koji Okamura (IEEE Access, 2021)

Psycho-linguistic differences among competing vaccination communities on social media. - Jialiang Shi; Piyush Ghasiya; Kazutoshi Sasahara (CoRR, 2021)

Understanding the Middle East through the eyes of Japan's Newspapers: A topic modelling and sentiment analysis approach. - Piyush Ghasiya; Koji Okamura (Digit. Scholarsh. Humanit., 2021)

Are Deepfakes Concerning? Analyzing Conversations of Deepfakes on Reddit and Exploring Societal Implications. - Dilrukshi Gamage; Piyush Ghasiya; Vamshi Krishna Bonagiri; Mark E. Whiting; Kazutoshi Sasahara (CHI, 2022)

A Hybrid Approach to Analyze Cybersecurity News Articles by Utilizing Information Extraction & Sentiment Analysis Methods. - Piyush Ghasiya; Koji Okamura (Int. J. Semantic Comput., 2022)

COVID-19 News Articles. - Piyush Ghasiya; Koji Okamura (IEEE DataPort, 2022)

Messaging strategies of Ukraine and Russia on Telegram during the 2022 Russian invasion of Ukraine. - Piyush Ghasiya; Kazutoshi Sasahara (First Monday, 2023)