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Consistently Simulating Human Personas with Multi-Turn Reinforcement Learning

Neural Information Processing Systems

Large Language Models (LLMs) are increasingly used to simulate human users in interactive settings such as therapy, education, and social role-play. While these simulations enable scalable training and evaluation of AI agents, off-the-shelf LLMs often drift from their assigned personas, contradict earlier statements, or abandon role-appropriate behavior. We introduce a unified framework for evaluating and improving persona consistency in LLM-generated dialogue. We define three automatic metrics--prompt-to-line consistency, line-to-line consistency, and Q&A consistency--that capture different types of persona drift and validate each against human annotations. Using these metrics as reward signals, we apply multiturn reinforcement learning to fine-tune LLMs for three user roles: a patient, a student, and a social chat partner. Our method reduces inconsistency by over 55%, resulting in more coherent, faithful, and trustworthy simulated users.


OWL: Optimized Workforce Learning General Multi-Agent Assistance for Real-World Task Automation

Neural Information Processing Systems

Large Language Model (LLM)-based multi-agent systems show promise for automating real-world tasks but struggle to transfer across domains due to their domain-specific nature. Current approaches face two critical shortcomings: they require complete architectural redesign and full retraining of all components when applied to new domains. We introduce WORKFORCE, a hierarchical multi-agent framework that decouples strategic planning from specialized execution through a modular architecture comprising: (i) a domain-agnostic Planner for task decomposition, (ii) a Coordinator for subtask management, and (iii) specialized Workers with domain-specific tool-calling capabilities.


You're taking the p***! China unveils the world's first self-driving TOILET - and it can even clean itself

Daily Mail - Science & tech

Austin Metcalf's final moments caught on harrowing 911 call as cowardly killer seen trying to flee American woman, 28, suffers horrific medical emergency while on dream vacation... as her family faces five-figure bill to bring her home Reflecting Pool fiasco deepens as'American flag blue' paint PEELS OFF... and president has a stark theory why Astonishing full story of Colombia balcony'child abuse' video: Texan man falsely accused by lynch mob and branded'MAGA pedophile' by president finally has his say Cocaine scandal ripping the Hamptons apart: New York elite's dirty secret leaves mothers too afraid to let their children out... as police issue urgent warning Original SNL star Garrett Morris, 89, goes viral with eye-popping photo of his bulge: 'I can't unsee it' Taylor Swift's bombshell reconciliation phone call with Blake Lively: Insiders reveal every detail of wedding invite'olive branch' literally no one saw coming... and the actress has a dress picked out! Super-trendy hotspot restaurant loved by A-list celebrities is suddenly SEIZED over $1.2 million bill Little-known penis condition that SHORTENS manhood: Shockingly, 1 in 10 men have it... but most miss the signs until it's too late to reverse with easy cure: DR PETAR BAJIC Spencer Pratt shares photo of FBI crackdown on Skid Row'voter fraud': 'What do you notice in the background?' Jerry Hall's turning 70 - and she's invited Mick, his new love, and even her'marriage wrecker' rival to the party! Cristiano Ronaldo's fiancรฉe Georgina Rodriguez shows off her incredible figure in sexy swimwear as she poses for stunning shoot with Harper's Bazaar Spain Massive brawl breaks out between drunk shirtless men on river sandbar causing'severe' injuries as 6 including woman are arrested Even I was once overweight. So trust me, this 30 DAY detox plan will get you thin WITHOUT Ozempic... but if you want to stay skinny, you'll have to make one major sacrifice: JILLIAN MICHAELS The four mistakes that led to bungee tragedy on Skeleton Bridge: FRED KELLY saw the scene for himself, now he retraces the prelude to disaster. So was it really an accident?


Flutterly adorable! Schnauzer with incredibly long lashes is looking for a home - as delighted fans claim she has 'eyelashes of dreams'

Daily Mail - Science & tech

TV star mom, 46, who appeared on'quitting everything to change your life' show died in fire at luxury Caribbean beach resort that sent 1,700 tourists running for their lives Furious Trump hits back at Italian Prime Minister Meloni and gives her unusual'nickname' as their photo feud ramps up The'marry me' sex move that'll make even the most commitment-phobic of men beg to see you again... and it worked for THREE of my friends Take the 10-second finger exercise that may reveal your risk of dementia... and even protect against it'It feels like emotional blackmail': As Harry and Meghan announce return to Britain with Archie and Lilibet, insiders reveal fears about decision to bring children and'manipulation' of Royals The four mistakes that led to bungee tragedy on Skeleton Bridge: FRED KELLY saw the scene for himself, now he retraces the prelude to disaster. So was it really an accident? Dua Lipa stuns in a bespoke Chanel bridal gown and parties into the early hours as she shares the first pictures from her ยฃ1.5million Little-known penis condition that SHORTENS manhood: Shockingly, 1 in 10 men have it... but most miss the signs until it's too late to reverse with easy cure: DR PETAR BAJIC World Cup commentator denies making racist comment about Ciara live on air during USA's win over Australia Harrowing chain of events behind The Ring star's death at just 35 laid bare by doctors in agonizing detail... and how it could have been prevented Jelly Roll reveals divorce'plot twist' as he posts footage of post-split phone call with Bunnie XO Lindsey Vonn shows off remarkable progress in gym workout just four months after horrific injury: 'Makes me so happy' Taylor Swift's bombshell reconciliation phone call with Blake Lively: Insiders reveal every detail of wedding invite'olive branch' literally no one saw coming... and the actress has a dress picked out! Swedish actress, 81, was in TWO James Bond movies and also worked with Charlton Heston, who is she?


AIhub monthly digest: June 2026 โ€“ biodiversity, resource allocation, and color metaphors

AIHub

Welcome to our monthly digest, where you can catch up with any AIhub stories you may have missed, peruse the latest news, recap recent events, and more. This month, we found out how foundation models are being used for conservation efforts, how AI can help with scarce resource allocation, and how color metaphors and LLMs can teach us about human cognition. We also went to ICRA and captured some footage of cutting-edge robots. In this latest interview in our AAAI Fellow series, we found out about Tanya Berger-Wolf's research developing a foundation model for biology, the insights this model can provide for conservation and protecting ecosystems, interesting collaborations over the years, and what the future has in store. In this interview, we chat to Sanmay Das, who was elected as a Fellow "for development of multiagent interaction mechanisms and learning techniques in the public interest, and for leadership service to the profession".


Russian artist and Putin critic shot dead in Poland

BBC News

Police in Poland are investigating the execution-style murder of a Russian artist and vocal critic of President Vladimir Putin. Polish prosecutors said Robert K, known as the artist Semyon Skrepetsky, was shot dead on Monday morning in the Polish city of Biaล‚a Podlaska, about 40km (25 miles) from the Belarusian border. The 44-year-old was shot five times in the head, chest and back in a car park in the city, located about 600m from the Belarusian consulate. He was known for his caricatures of politicians, including Putin, Belarusian leader Alexander Lukashenko and Chechen leader Ramzan Kadyrov. Marcin Kozak, spokesman for the District Prosecutor's Office in Lublin, said the artist was approached by an unidentified gunman who fired two shots at him.


NeurIPS should lead scientific consensus on AI policy

Neural Information Processing Systems

Designing wise AI policy is a grand challenge for society. To design such policy, policymakers should place a premium on rigorous evidence and scientific consensus. While several mechanisms exist for evidence generation, and nascent mechanisms tackle evidence synthesis, we identify a complete void on consensus formation. In this position paper, we argue NeurIPS should actively catalyze scientific consensus on AI policy. Beyond identifying the current deficit in consensus formation mechanisms, we argue that NeurIPS is the best option due its strengths and the paucity of compelling alternatives. To make progress, we recommend initial pilots for NeurIPS by distilling lessons from the IPCC's leadership to build scientific consensus on climate policy. We dispel predictable counters that AI researchers disagree too much to achieve consensus and that policy engagement is not the business of NeurIPS. NeurIPS leads AI on many fronts, and it should champion scientific consensus to create higher quality AI policy.


Urgent warning to all Outlook users about scam hijacking email accounts... here's how to stay safe

Daily Mail - Science & tech

Former Olympian is arrested for allegedly vandalizing Reflecting Pool... but he claims he merely touched it Call me cynical, but the real reason Gruesome Twosome Harry and Meghan are returning to the UK is just so obvious... and highly humiliating: MAUREEN CALLAHAN Three more arrested over bungee jumper's death after she was hurled from bridge without a rope I lost 50lb without jabs using this easy but overlooked method. But I still felt dowdy - until I discovered these expert anti-ageing fashion and beauty tips. Inside America's new fattest town: Burgers are the size of your head, gyms lie empty and custom mobility scooters carry 800lb loads... as we investigate why Ozempic just DOESN'T work Blake Lively runs errands in frumpy outfit after reconciling with ex-BFF Taylor Swift... miles away from reported'bachelorette party' I've spoken to thousands of children who claim they can recall a past life ... these chilling stories have convinced me they're telling the truth Stingy fast food giant named America's favorite restaurant AGAIN... and experts think they know why Ex-partner of dad who was berated for taking his daughters into women's bathroom claims he'exploited' girls and accuses him of failing to pay child support... before he hits back The'marry me' sex move that'll make even the most commitment-phobic of men beg to see you again... and it worked for THREE of my friends America's next real estate time bomb detonates the sun-kissed southern housing dream: 'New condo crisis' sparks chilling warning as it snakes across the nation Furious Trump hits back at Italian Prime Minister Meloni and gives her unusual'nickname' as their photo feud ramps up TV star mom, 46, who appeared on'quitting everything to change your life' show died in fire at luxury Caribbean beach resort that sent 1,700 tourists running for their lives Grace Kelly's lookalike granddaughter, 27, wows in bikini snaps...as she packs on the PDA during beach getaway The four mistakes that led to bungee tragedy on Skeleton Bridge: FRED KELLY saw the scene for himself, now he retraces the prelude to disaster. So was it really an accident? Famous TV mansion left standing after Malibu's harshest wildfires struggled to find a buyer for 14 years but finally sells for an eye-watering price Swedish actress, 81, was in TWO James Bond movies and also worked with Charlton Heston, who is she?


America's Time Capsule includes fabric from the Wright Brother's plane, whale bone, poker chips, and more

Popular Science

Science Archaeology America's Time Capsule includes fabric from the Wright Brother's plane, whale bone, poker chips, and more The time capsule will remain sealed in Philadelphia for 250 years. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. The state of Ohio included fabric from the Wright Brothers' 1903 flight at Kitty Hawk, North Carolina. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .


MMPB: It's Time for Multi-Modal Personalization

Neural Information Processing Systems

Visual personalization is essential in user-facing AI systems such as smart homes and healthcare, where aligning model behavior with user-centric concepts is critical. However, recent large Vision-Language Models (VLMs), despite their broad applicability, remain underexplored in their ability to adapt to individual users. In this paper, we introduce MMPB, the first extensive benchmark for evaluating VLMs on personalization. MMPB comprises 10k image-query pairs and includes 111 personalizable concepts across four categories: humans, animals, objects, and characters, with the human category enriched with preference-grounded queries.