arXiv:2512.19855v2 Announce Type: replace-cross Abstract: This letter extends the exactly sparse Gaussian variational inference (ESGVI) algorithm for state estimation in two complementary directions. First, ESGVI is generalized to operate on matrix Lie groups, enabling the estimation of states with orientation components while respecting the underlying group structure. Second, factors are introduced to accommodate heavy-tailed and skewed noise distributions, as commonly encountered in ultra-wideband (UWB) localization due to non-line-of-sight (NLOS) and multipath effects. Both extensions are shown to integrate […]

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arXiv:2603.08849v1 Announce Type: new Abstract: The impact of large language models (LLMs) on critical thinking has provoked growing attention, yet this impact on actual performance may not be uniformly negative or positive. Particularly, the role of time — the temporal context under which an LLM is provided — remains overlooked. In a between-subjects experiment (n=393), we examined two types of time constraints for a critical thinking task requiring participants to make a reasoned decision for a real-world scenario […]

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I have been writing articles on freeCodeCamp for a while (20+ articles, 240K+ views). Recently, I completed my biggest project! I explain the math from an engineering perspective and connect how math solves real life problems and makes billion dollar industries possible. For example, in “Chapter 6: Probability & Statistics – Learning from Uncertainty” I explain how Markov chains allow the application of the Markov decision processes, which is the foundation for all RL and DRL. The chapters: […]

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When a bot thinks it has logged into a small energy device, it installs commodity Linux malware. This is a static, defensive breakdown of what a honeypot captured after weak SSH and Telnet logins: fake-daemon binaries that masquerade as sshd and xinetd, a statically linked bot, a backdoor with three independent persistence mechanisms, and a self-deleting campaign visible only through commands. The payloads are ordinary, but the chain is the lesson: weak login, host fingerprint, payload staging, persistence, […]

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I built a custom RL algorithm for continuous flight control and open-sourced it. Sharing here in case the structural ideas are useful for anyone doing continuous control where one action axis dominates. I’ve been training continuous control on a 6-DoF flight sim (pitch/roll/yaw/throttle/brake/fire) and kept hitting the same wall: vanilla TD3 would peak, then collapse into pitch oscillation and never recover. I tried reward shaping for a while before concluding the problem was structural, not in the reward. […]

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arXiv:2601.19944v1 Announce Type: cross Abstract: We study model-agnostic post-hoc calibration methods intended to improve probabilistic predictions in supervised binary classification on real i.i.d. tabular data, with particular emphasis on conformal and Venn-based approaches that provide distribution-free validity guarantees under exchangeability. We benchmark 21 widely used classifiers, including linear models, SVMs, tree ensembles (CatBoost, XGBoost, LightGBM), and modern tabular neural and foundation models, on binary tasks from the TabArena-v0.1 suite using randomized, stratified five-fold cross-validation with a held-out test […]

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Written to clarify ideas that bewildered even his closest friends, Teilhard de Chardin explains his lifelong struggle: reconciling love of God with love of the world. From childhood, he sought the Absolute—first in metal, then matter, finally the cosmos itself. His revelation: Christ doesn’t compete with the universe but completes it, making every human endeavor a form of worship toward one divine convergence.

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Open Responses This is the standardization effort I’ve most wanted in the world of LLMs: a vendor-neutral specification for the JSON API that clients can use to talk to hosted LLMs. Open Responses aims to provide exactly that as a documented standard, derived from OpenAI’s Responses API. I was hoping for one based on their older Chat Completions API since so many other products have cloned the already, but basing it on Responses does make sense since that […]

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arXiv:2603.06608v1 Announce Type: new Abstract: The research community lacks a middle ground between StarCraft IIs full game and its mini-games. The full-games sprawling state-action space renders reward signals sparse and noisy, but in mini-games simple agents saturate performance. This complexity gap hinders steady curriculum design and prevents researchers from experimenting with modern Reinforcement Learning algorithms in RTS environments under realistic compute budgets. To fill this gap, we present the Two-Bridge Map Suite, the first entry in an open-source […]

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The sharper the mind, the more elaborate the justification for staying wrong. Depth of thought becomes the mechanism of loss when it serves identity instead of truth. There is a version of intelligence that protects you in markets. It reads conditions, adjusts frameworks, and knows when to step aside. Then there is another version, far more common, that does the opposite. It builds elaborate cases for positions that should have been closed days ago. The distinction matters more […]

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