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How do neural networks learn? A mathematical formula explains how they detect relevant patterns (phys.org)

Statistical Analysis neural networks machine learning Feature Learning AI Democratization

Researchers at the University of California San Diego have uncovered a formula that explains how neural networks learn relevant patterns in data, which could lead to more interpretable and efficient machine learning models. This formula, the Average Gradient Outer Product (AGOP), not only sheds light on the functioning of neural networks but also has potential applications in non-neural machine learning architectures, aiming to democratize AI by reducing complexity and computational demands.
Main Points
- Discovery of how neural networks learnA team at the University of California San Diego provided an 'X-ray' view into how neural networks learn, finding that a statistical analysis formula explains their learning process.
- Implications for machine learning model developmentThis understanding could lead to simpler, more efficient, and more interpretable machine learning models.
- Potential for democratizing AIThe research could help democratize AI by making machine learning systems less complex and more understandable.
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Titanosaurs were the biggest land animals Earth's ever seen, combining reptile and mammal traits (phys.org)

dinosaurs titanosaurs sauropod reptiles mammals

Titanosaurs were a unique group of sauropod dinosaurs that flourished by merging reptilian and mammalian traits. They were distributed worldwide, exhibited rapid growth rates, and were the largest land animals Earth has ever seen. Despite their long reign and diversity, their existence was halted by the asteroid impact that marked the end of the dinosaur age.
Main Points
- Diversity in sizeTitanosaurs were a diverse group of sauropod dinosaurs known for their vast size differences, from the largest sauropods on Earth to smaller species comparable in size to an African elephant.
- Rapid growth ratesUnlike their ancestors, titanosaurs displayed remarkably rapid growth rates, similar to those seen in mammals, reaching their enormous sizes within decades.
- Global dominanceTitanosaurs thrived worldwide due to their unique combination of reptilian and mammalian traits, suggesting they could have continued thriving if not for the asteroid impact.
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