He Zhang

NLP and Machine Learning researcher with experience in user feedback analysis, social media analytics, and customized Explainable AI (XAI). Former ML Data Associate III at Amazon Development Center Poland and Research Assistant at Warsaw University of Technology under the EU Horizon 2020 NL4XAI project. Experienced in designing NLP pipelines, analyzing large-scale social media and user-feedback datasets, conducting model error analysis, and building interactive data visualization tools. Research background includes computational rhetoric, argumentation mining, moral value detection, and personalized AI explanations.