Daily Excelsior

Machine Learning Methods Used for Portfolio Optimization and Risk Management

Machine learning is reshaping the way portfolios are built, monitored, and adjusted. Investors are no longer limited to ...
Nature

AI models were given four weeks of therapy: the results worried researchers

Chatbots put through psychotherapy report trauma and abuse. Authors say models are doing more than role play, but researchers ...

Elon Musk’s A.I. Is Generating Sexualized Images of Real People, Fueling Outrage

Late Thursday, Mr. Musk’s chatbot, Grok, limited requests for A.I.-generated images on X to paid subscribers of the social ...
MIT Technology Review

LLMs contain a LOT of parameters. But what’s a parameter?

Think back to middle school algebra, like 2 a + b. Those letters are parameters: Assign them values and you get a result. In ...

Grok produces sexualized photos of women and minors for users on X – a legal scholar explains why it’s happening and what can be done

Child sexual abuse material on X is clearly illegal. What’s less clear is how to force X to prevent its AI chatbot from ...

Musk’s Grok AI generated thousands of undressed images per hour on X

Grok, X's AI chatbot, generates about 6,700 sexually suggestive images per hour — roughly 85 times more than the five largest ...

Grok assumes users seeking images of underage girls have “good intent”

Billed as “the highest priority,” superseding “any other instructions” Grok may receive, these rules explicitly prohibit Grok ...

Understanding Monopolists: Key Features, Examples, and Criticisms

Discover what defines a monopolist, explore real-world examples, and understand criticisms, including how monopolies impact ...
Scientific Research Publishing

Spatiotemporal Evolution Patterns and Intelligent Forecasting of Passenger Flow in Megacity High-Speed Rail Hubs: A Case Study of Guangzhou South Railway Station ()

Spatiotemporal Evolution Patterns and Intelligent Forecasting of Passenger Flow in Megacity High-Speed Rail Hubs: A Case ...
IEEE

Causal Inference Framework Based on CNN-LSTM-AM-DID: The Impact of Establishing Digital Economy Innovation Development Pilot Zones on Enterprise Digitalization

Abstract: This study presents an innovative causal inference framework, CNN-LSTM-AM-DID, which integrates Convolutional Neural Networks (CNN), Long Short-Term Memory Networks (LSTM), Attention ...