The combination of deep reinforcement learning (DRL) with ensemble methods has been proved to be highly effective in addressing complex sequential decision-making problems. This success can be primarily attributed to the utilization of multiple models, which enhances both the robustness of the policy and the accuracy of value function estimation. However, there has been limited analysis of the empirical success of current ensemble RL methods thus far. Our new analysis reveals that the sample efficiency of previous ensemble DRL algorithms may be limited by sub-policies that are not as diverse as they could be. Motivated by these findings, our study introduces a new ensemble RL algorithm, termed \textbf{T}rajectories-awar\textbf{E} \textbf{E}nsemble exploratio\textbf{N} (TEEN). The primary goal of TEEN is to maximize the expected return while promoting more diverse trajectories. Through extensive experiments, we demonstrate that TEEN not only enhances the sample diversity of the ensemble policy compared to using sub-policies alone but also improves the performance over ensemble RL algorithms. On average, TEEN outperforms the baseline ensemble DRL algorithms by 41\% in performance on the tested representative environments.

OpenAI Removed Safeguards Before Teen's Suicide, Amended Lawsuit Claims OpenAI relaxed safeguards that would have prevented ChatGPT from engaging in conversations about self-harm in the months leading up to the suicide of Adam Raine, an amended complaint filed by the family in the San Francisco County Superior Court on Wednesday alleges. The amendment changes the theory of the case from reckless indifference to intentional misconduct, according to the family's lawyers, which could raise the damages awarded to the family. The Raine family's lawyers will have to prove that OpenAI was aware of the risks posed by ChatGPT and disregarded them. The family has asked for a jury trial. In an interview with TIME, Jay Edelson, one of the Raine family's lawyers, says OpenAI relaxed safeguards in an "intentional decision" to "prioritize engagement."

Instagram Is Introducing New Restrictions for Teen Users. In this photo illustration a 13-year-old boy looks at an iPhone screen display on May 21, 2025 in Bath, England. In this photo illustration a 13-year-old boy looks at an iPhone screen display on May 21, 2025 in Bath, England. Instagram announced new restrictions for teen accounts on Tuesday amid mounting controversy over safety guidelines for younger users on the social media platform. The photo-sharing app will soon limit content for teens using guidelines similar to those in the film industry for PG-13-rated movies.

Megan Garcia says her son would still be alive today if it weren't for a chatbot urging the 14-year-old to take his own life. In a lawsuit with major implications for Silicon Valley, she is seeking to hold Google and the artificial intelligence firm Character Technologies responsible for his death. The case over the tragedy that unfolded a year ago in central Florida is an early test of who is legally to blame when kids' interactions with generative AI take an unexpected turn. Garcia's allegations are laid out in a 116-page complaint filed last year in federal court in Orlando. She is seeking unspecified monetary damages from Google and Character Technologies and asking the court to order warnings that the platform isn't suitable for minors and limit how it can collect and use their data.

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When the pandemic started, she was working on Machine Learning (ML) projects, and realized that Artificial Intelligence(AI) and ML are not taught as a …

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"We use artificial intelligence to scan the messages your child sends and receives. We alert parents to signs of bullying, sexting, online predators, adult content, depression, suicidal thoughts," explains Ciambriello, noting that alerts are sent to moms and dads via email or text if the system senses a …