Anthropic identifies AI persona drift and ties it to an “assistant axis”; tests across 275 roleplay characters, raising safety limits.
Neural stem cells (NSCs) are important for the development and regeneration of the nervous system. After the initial development of the brain, neural stem cells typically enter a dormant state, ...
Photonics is gaining momentum as a platform for high-speed AI computing. Researchers in Singapore have demonstrated a passive, ultrafast, and integration-ready all-optical nonlinear activation ...
How does meaning arise from matter? This is Part 2 of a four-part series exploring how the brain generates meaning. In Part 1, I argued that meaning emerges from relations among neural patterns, ...
Activation functions play a critical role in AI inference, helping to ferret out nonlinear behaviors in AI models. This makes them an integral part of any neural network, but nonlinear functions can ...
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Photonic chips advance real-time learning in spiking neural systems
Researchers have developed photonic computing chips that overcome key limitations for a type of neural network known as a photonic spiking neural system. By enabling fast learning and decision making ...
A two-chip photonic neuromorphic system performs real time spiking reinforcement learning using only light, achieving ...
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