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Can AI learn like us?

image of Robot generated by AI
Kyle Daruwalla came to 黑料吃瓜资源 after completing his Ph.D. at the University of Wisconsin-Madison, where he studied under Professor Mikko Lipasti. The two scientists are co-authors of a new study published in Frontiers in Computational Neuroscience. AI-generated image: 漏 kura - stock.adobe.com

It reads. It talks. It collates mountains of data and recommends business decisions. Today鈥檚 artificial intelligence might seem more human than ever. However, AI still has several critical shortcomings. 黑料吃瓜资源 (CSHL) NeuroAI Scholar Kyle Daruwalla explains:

鈥淎s impressive as ChatGPT and all these current AI technologies are, in terms of interacting with the physical world, they鈥檙e still very limited. Even in things they do, like solve math problems and write essays, they take billions and billions of training examples before they can do them well.鈥

Daruwalla has been searching for new, unconventional ways to design AI that can overcome such computational obstacles. And he might have just found one.

The key was moving data. Nowadays, most of modern computing鈥檚 energy consumption comes from bouncing data around. In artificial neural networks, which are made up of billions of connections, data can have a very long way to go. So, to find a solution, Daruwalla looked for inspiration in one of the most computationally powerful and energy-efficient machines in existence鈥攖he human brain.

CSHL NeuroAI Scholar Kyle Daruwalla talks about making AI more energy-efficient and accessible for all.

Daruwalla designed a new way for AI algorithms to move and process data much more efficiently, based on how our brains take in new information. The design allows individual AI 鈥渘eurons鈥 to receive feedback and adjust on the fly rather than wait for a whole circuit to update simultaneously. This way, data doesn鈥檛 have to travel as far and gets processed in real time.

鈥淚n our brains, our connections are changing and adjusting all the time,鈥 Daruwalla says. 鈥淚t鈥檚 not like you pause everything, adjust, and then resume being you.鈥

image of machine learning schematic
A schematic comparing typical machine-learning models (A) with Daruwalla鈥檚 new design (B). Row A shows input or data having to travel all the way through every layer of the neural network before the AI model receives feedback, which takes more time and energy. In contrast, row B shows the new design that allows feedback to be generated and incorporated at each network layer.

The new machine-learning model provides evidence for a yet unproven theory that correlates working memory with learning and academic performance. Working memory is the cognitive system that enables us to stay on task while recalling stored knowledge and experiences. Daruwalla says:

鈥淭here have been theories in neuroscience of how working memory circuits could help facilitate learning. But there isn鈥檛 something as concrete as our rule that actually ties these two together. And so that was one of the nice things we stumbled into here. The theory led out to a rule where adjusting each synapse individually necessitated this working memory sitting alongside it.鈥

Daruwalla鈥檚 design may help pioneer a new generation of AI that learns like we do. That would not only make AI more efficient and accessible鈥攊t would also be somewhat of a full-circle moment for neuroAI. Neuroscience has been feeding AI valuable data since long before ChatGPT uttered its first digital syllable. Soon, it seems, AI may return the favor.

Written by: Luis Sandoval, Communications Specialist | [email protected] | 516-367-6826


Funding

U.S. Air Force Research Laboratory, National Science Foundation

Citation

Daruwalla, K., et al., 鈥淚nformation Bottleneck-Based Hebbian Learning Rule Naturally Ties Working Memory and Synaptic Updates鈥, Frontiers in Computational Neuroscience, May 16, 2024. DOI:

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