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Families of Tumbler Ridge shooting victims sue OpenAI
Families of Tumbler Ridge shooting victims sue OpenAI Just days after OpenAI CEO Sam Altman wrote a public apology to people of Tumbler Ridge, British Columbia in the aftermath of the town's deadly February 10 school shooting, the families of the victims of the traumatic event are suing OpenAI for negligence. The mass shooting, one of the deadliest in Canadian history, saw the alleged shooter, 18-year-old Jesse Van Rootselaar, enter the town's local high school and kill five students and one...
Reframing preprocessing selection as model-internal calibration in near-infrared spectroscopy: A large-scale benchmark of operator-adaptive PLS and Ridge models
arXiv:2605.13587v3 Announce Type: replace-cross Abstract: Preprocessing screening is often the most expensive part of a near-infrared spectroscopy calibration workflow. It works because smoothing, derivatives, detrending and related filters change the spectral directions seen by partial least squares (PLS) or Ridge regression, but a full external search repeatedly refits nearly the same linear model.
To Grok Grokking: Provable Grokking in Ridge Regression
arXiv:2601.19791v3 Announce Type: replace Abstract: We study grokking, the onset of generalization long after overfitting, in a classical ridge regression setting. We prove end-to-end grokking results for learning over-parameterized linear regression models using gradient descent with weight decay. Specifically, we prove that the following stages occur: (i) the model overfits the training data early during training; (ii) poor generalization persists long after overfitting has manifested; and...
Improved Scaling Laws via Weak-to-Strong Generalization in Random Feature Ridge Regression
Announce Type: replace Abstract: It is increasingly common in machine learning to use learned models to label data and then employ such data to train more capable models. The phenomenon of weak-to-strong generalization exemplifies the advantage of this two-stage procedure: a strong student is trained on imperfect labels obtained from a weak teacher, and yet the strong student outperforms the weak teacher. In this paper, we show that the potential improvement is substantial, in the sense that...
When New Generators Arrive: Lifelong Machine-Generated Text Attribution via Ridge Feature Transfer
arXiv:2606.05626v1 Announce Type: new Abstract: Machine-generated text (MGT) attribution aims to identify the specific generator responsible for a given text, thereby providing fine-grained evidence for model accountability and misuse investigation. As new large language models continue to emerge, attribution models must continuously incorporate new generators while preserving their ability to recognize previously seen ones. Prior works have shown that this lifelong MGT attribution setting...
Compact quasiaxisymmetric stellarators, a near axisymmetric theory
arXiv:2606.04122v1 Announce Type: new Abstract: We develop a theory of ridges in compact stellarators with quasiaxisymmetry (QA). The equilibrium with finite plasma currents and pressure is modeled by ideal magnetohydrostatics (MHS). Field lines are collimated near sharp ridges, much like X-points, making ridges attractive to divertor designs without the requirement of a rational rotational transform at the divertor.
Epidermal microstructure and tactile sensitivity in the glabrous skin of hands and feet
Glabrous skin on the human palms and soles is specialised for mechanical interaction and is characterised by papillary ridges, an absence of hair follicles, and a thick stratum corneum. While gross morphological differences, such as the increased thickness of the plantar stratum corneum, are well-documented, the fine-scale structural features associated with individual ridges and whether they help explain differences in tactile perception remain poorly understood. Here, we employed optical...
Unfinished outback opal museum gets $1m lifeline to pay debts
Australian Opal Centre receives $1 million government lifeline as it scales back to survive Wed 3 Jun 2026 at 7:02am In short: The Australian Opal Centre Limited has received $1 million from the NSW government to pay its debts related to an unfinished opal museum in Lightning Ridge. The not-for-profit organisation had received nearly $30 million in federal, state and local government grants before it halted construction last year. The AOCL has cut staff and scaled back operations ahead of a...
Israel seizes strategic site in Lebanon, marking deepest incursion in 26 years
Israeli forces have crossed the Litani River and captured a strategic site in Lebanon, its defense minister said Sunday, marking Israel’s deepest incursion into the country in 26 years. The capture of Beaufort Ridge, the site of a medieval castle, comes after days of intense fighting in southern Lebanon, and after Prime Minister Benjamin Netanyahu said he was “intensifying operations” in the country despite a nominal ceasefire that came into place in April. And the advance comes despite...
Israeli troops seize castle in deepest incursion into Lebanon in 26 years
Israeli troops capture Beaufort castle in push against Hezbollah in southern Lebanon Sun 31 May 2026 at 7:38pm In short: The Israeli military says it has captured Beaufort castle and its strategic ridge in southern Lebanon, after days of intense fighting and air strikes in nearby villages. The capture is a major advance against Iran-backed Hezbollah despite a ceasefire announced more than six weeks ago. The next round of talks on a Israel-Lebanon ceasefire are set to be held in Washington on...