Network-distance decay of perceived online social support

Collection of recent network- and behavior-focused CS papers. Key items: TSAI-MetaFraud — a multimodal benchmark dataset for fraud, bot, and illicit-transaction detection in metaverse virtual economies (includes behavioral, transactional, and graph data plus baseline GNNs); LD‑Leiden — a highly scalable local dynamic Leiden algorithm for incremental community detection on very large graphs; an interpretable role-based clustering method for multi-layer financial networks aimed at systemic-risk and supervisory use; work on temporal link prediction and an estimation–prediction tradeoff in causal/