The rapid adoption of large language models (LLMs), such as GPT-4 and Claude 3.5, underscores the need to distinguish LLM-generated text from human-written content to mitigate the spread of misinformation and misuse in education. One promising approach to address this issue is the watermark technique, which embeds subtle statistical signals into LLM-generated text to enable reliable identification. In this paper, we first generalize the likelihood-based LLM detection method of a previous study by introducing a flexible weighted formulation, and further adapt this approach to the inverse transform sampling method. Moving beyond watermark detection, we extend this adaptive detection strategy to tackle the more challenging problem of segmenting a given text into watermarked and non-watermarked substrings. In contrast to the approach in a previous study, which relies on accurate estimation of next-token probabilities that are highly sensitive to prompt estimation, our proposed framework removes the need for precise prompt estimation. Extensive numerical experiments demonstrate that the proposed methodology is both effective and robust in accurately segmenting texts containing a mixture of watermarked and non-watermarked content.

Inverse Game Theory (IGT) methods based on the entropy-regularized Quantal Response Equilibrium (QRE) offer a tractable approach for competitive settings, but critically assume the agents' rationality parameter (temperature $τ$) is known a priori. When $τ$ is unknown, a fundamental scale ambiguity emerges that couples $τ$ with the reward parameters ($θ$), making them statistically unidentifiable. We introduce Blind-IGT, the first statistical framework to jointly recover both $θ$ and $τ$ from observed behavior. We analyze this bilinear inverse problem and establish necessary and sufficient conditions for unique identification by introducing a normalization constraint that resolves the scale ambiguity. We propose an efficient Normalized Least Squares (NLS) estimator and prove it achieves the optimal $\mathcal{O}(N^{-1/2})$ convergence rate for joint parameter recovery. When strong identifiability conditions fail, we provide partial identification guarantees through confidence set construction. We extend our framework to Markov games and demonstrate optimal convergence rates with strong empirical performance even when transition dynamics are unknown.

The company is pursuing aggressive legal tactics against its opponents. On September 12, Jay Edelson received what he expected to be a standard legal document. Edelson is a lawyer representing the parents of Adam Raine; they are suing OpenAI, alleging that their 16-year-old son took his life at the encouragement of ChatGPT. OpenAI's lawyers had some inquiries for the opposing counsel, which is normal. For instance, they requested information about therapy Raine may have received, and Edelson complied.

Netflix's offers a different spin on one of literature's all-time assholes. Enter your email to receive alerts for this author. You can manage your newsletter subscriptions at any time. You're already subscribed to the aa_Laura_Miller newsletter. You can manage your newsletter subscriptions at any time.

The SpaceX founder's seven-figure grant supports digital archaeology projects documenting Roman heritage, with Musk suggesting AI could help fill historical knowledge gaps.

A Swedish man discovered the 12th century buried treasure near his summer home. Breakthroughs, discoveries, and DIY tips sent every weekday. It only costs a few dollars to buy a tub of bait worms for fishing, but many people are fine with sourcing them straight from the ground. There's always a chance you may find more in the dirt than wriggling invertebrates. Take a recent example near Stockholm, Sweden: According to county officials last month, an unnamed fisherman scrounging for worms at his summer house discovered a corroded copper cauldron containing around 13 pounds of treasure from the Middle Ages.

When you purchase through links in our articles, we may earn a small commission. Google Drive's shared files and folders can now have permissions auto-expire Google Drive users can now grant temporary access to a file or folder, which is automatically revoked after a specified date. Google is now making it possible to set expiration dates on shared files and folders in Google Drive, reports Digital Trends . The feature applies to both shared drives and "My Drive," where users can grant temporary access to a file or folder that's automatically revoked after a certain date. This also means that temporary editing rights in "My Drive" no longer disappear completely when the period expires.

HMP Wandsworth gets green light to use AI after team sent in to find'quick fixes' after spate of mistakes Artificial intelligence chatbots could be used to stop prisoners from being mistakenly released from jail, a justice minister told the House of Lords on Monday. James Timpson said HMP Wandsworth had been given the green light to use AI after a specialised team was sent in to find "some quick fixes". A double manhunt was launched last week after the incorrect release of a sex offender and a fraudster from the prison in south-west London. Release errors over the past fortnight have been seized upon by opposition MPs as evidence of the helplessness of ministers in the face of chaos within the criminal justice system. David Lammy, the justice secretary, is expected to address parliament about the number of missing prisoners when MPs return on Tuesday. It is understood that AI could be used to read and process paper documents; help staff cross-reference names to ensure that inmates are no longer hiding their past crimes behind aliases; merge different datasets; and calculate release dates and sentences.

Are we closer to a Gaza international peace force? How Israel is using'no war, no peace' model in Gaza How is Israel using PR firms to frame its war? At least two people including a child have been killed in an Israeli drone strike east of Khan Younis in southern Gaza, according to Al Jazeera reporters in the besieged Palestinian territory. Hamas condemned Israel's "daily and continuous violations" since a truce came into effect last month, accusing it of maintaining a campaign of bombardments and demolitions across the besieged enclave. The Israeli military said the Palestinians killed on Monday posed "an immediate threat" to its forces. Israeli forces have also been systematically destroying homes inside the so-called "yellow line", a temporary withdrawal boundary agreed in the ceasefire.

When you purchase through links in our articles, we may earn a small commission. With a small video monitor in the box, SwitchBot lets you see who's at the door even when your phone's out of reach. Subscription plan doesn't add much Pairing a small monitor with this video doorbell is a no-brainer way to get more out of what has become a something of a commodity device. Part of the trouble with video doorbells is that you don't always have your phone at the ready to see who's ringing. If you're standing in the kitchen when the bell rings, but you've left your phone in the bedroom, do you rush to your phone to get a peek at who's there, or do you take a chance and just answer the door?