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cs.AI2026
Revoked but Still Authoritative: An Empirical Study of Revocation Enforcement in Agent-Memory Systems
Yi Ting Shen, Kentaroh Toyoda, Alex Leung
Long-running language-model agents depend on persistent memory. Many agent-memory systems preserve history through soft revocation: a contradicted fact is marked invalid and retain…
cs.AI2026
From Control Boundary to Insurance Claim: Reconstructing AI-Mediated Losses Through the CER Framework
Alex Leung, Rex Zhang, Kentaroh Toyoda +1
AI losses that arise through an insured organization's generative or agentic AI system require state reconstruction, not merely event reconstruction, because the relevant state cha…
cs.AI2026
AI Identity: Standards, Gaps, and Research Directions for AI Agents
Takumi Otsuka, Kentaroh Toyoda, Alex Leung
AI agents are now running real transactions, workflows, and sub-agent chains across organizational boundaries without continuous human supervision. This creates a problem no curren…