COVID-Related Focus -- Malicious and Low Credibility URLs on Twitter during the AstraZeneca COVID-19 Vaccine Development -- How Political is the Spread of COVID-19 in the United States? An Analysis using Transportation and Weather Data -- Applying an Epidemiological Model to Evaluate the Propagation of Misinformation and Legitimate COVID-19-related Information on Twitter -- Optimization of Mitigation Strategies during Epidemics using Offline Reinforcement Learning -- Mining Online Social Media to Drive Psychologically Valid Agent Models of Regional Covid-19 Mask Wearing -- Fine-Grained Analysis of the Use of Neutral and Controversial Terms for COVID-19 on Social Media -- Methodologies -- Assessing Bias in YouTube's Video Recommendation Algorithm in a Cross-lingual and Cross-topical Context -- Formal Methods for an Iterated Volunteer's Dilemma -- Privacy Preserving Text Representation Learning Using BERT -- GPU Accelerated PMCMC Algorithm with System Dynamics Modelling -- An Analysis of Global News Coverage of Refugees using a Big Data Approach -- An Identity-Based Framework for Generalizable Hate Speech Detection -- Using Diffusion of Innovations Theory to Study Connective Action Campaigns -- Reinforcement Learning For Data Poisoning on Graph Neural Networks -- Social Cybersecurity and Social Networks -- Simulating Social-Cyber Maneuvers to Deter Disinformation Campaigns -- Studying the Role of Social Bots During Cyber Flash Mobs -- The Integrated Game Transformation Framework and Cyberwar: What 2x2 Games tell us about Cyberattacks -- Bot-based Emotion Behavior Differences in Images during Kashmir Black Day Event -- Using Social Network Analysis to Analyze Development priorities of Moroccan Institutions -- Influence Dynamics Among Narratives: A Case Study of the Venezuelan Presidential Crisis -- Network Structures and Humanitarian Need -- Identifying Shifts in Collective Attention to Topics on Social Media -- wapr.tugon.ph: A Secure Helpline for Detecting Psychosocial Aid from Reports of Unlawful Killings in the Philippines -- Human and Agent Modeling -- Agent-based Modeling of Opinion Polarization in Chinese Online Live Streaming Platforms -- Having a Bad Day? Detecting the Impact of Atypical Events Using Wearable Sensors -- Trusty Ally or Faithless Snake: Modeling the Role of Human Memory and Expectations in Social Exchange -- Examining the Effects of Race on Human-AI Cooperation -- Tweeting while Pregnant: Is Online Health Communication about Physical Symptoms and Emotions about the Tweeter -- On the Effect of Social Norms on Performance in Teams with Distributed Decision Makers -- What Makes A Turing Award Winner -- Kinetic Action and Radicalization: A Case Study of Pakistan -- Multi-Agent Naïve Utility Calculus: Intent Inference in the Stag-Hunt Game.