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Longbing Cao

3 papers indexed

arxivcs.ROcs.HC2026-07-17

PACE: Persona Adaptation through Conversational Elicitation in Human-Robot Interaction

Peizhen Li, Longbing Cao, Megani Rajendran, Timothy Liu, Aik Beng Ng, Simon See

Equipping humanoid robots with coherent and adaptable personas is crucial for fostering natural, engaging, and trustworthy human-robot interaction (HRI). However, existing approaches often rely on static, hard-coded identities that lack the flexibility to adapt to individual user…

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arxivcs.LGcs.AI2026-06-29

Beyond Output-Space Calibration: Spectral Evidence Bundling for Selective Reliability Estimation in Time-Series Classification

Filippo Cenacchi, Longbing Cao, Runze Yang

Post-hoc calibration for time-series classification usually remaps output scores, but deployment decisions such as trust, abstention, and review depend on whether a confident prediction is supported by the current temporal signal. We address three time-series reliability gaps: id…

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arxivcs.LGcs.AI2026-06-29

FALCON-Discover: Discovering Concentrated False-Confidence Regions for Calibration

Filippo Cenacchi, Longbing Cao, Runze Yang

Calibration is usually evaluated in aggregate, but the most dangerous failures are often local: predictions that remain highly confident despite being wrong. We study this failure mode as false-confidence concentration, the extent to which confident errors occupy compact, discove…

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