Author

Bhaskar Krishnamachari

2 papers indexed here

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Open access Feb 2024

LLM-powered socially assistive robot-delivered cognitive behavioral therapy exercises: an exploratory study with university students

Mental health is a significant healthcare challenge, and cognitive behavioral therapy (CBT) is a widely used therapeutic method for treating anxiety and depression. However, traditional CBT often requires access to trained clinicians and can be cost-prohibitive or logistically difficult for many individuals. To address...

Mina J. Kian, Mingyu Zong, Katrin Fischer et al. · Frontiers in Robotics and AI · 16 citations

Preprint Aug 2026

Localizing Safety Alignment: MLP Layers and Mid-Network Blocks Encode Refusal Behavior in Large Language Models

Safety alignment in large language models is often treated as a distributed property of the entire network, yet its practical brittleness suggests that refusal behavior may be concentrated in a smaller set of parameters. This work addresses where safety-aligned refusal is encoded by transplanting weights from aligned m...

Mingyu Zong, Sampad Mohanty, Bhaskar Krishnamachari · 0 citations