arXiv:2407.00644v3 Announce Type: replace Abstract: Graphical models serve as effective tools for visualizing conditional dependencies between variables. However, as the number of variables grows, interpretation becomes increasingly difficult, and estimation uncertainty increases due to the large number of parameters relative to the number of observations. To address these challenges, we introduce the Clusterpath estimator of the Gaussian Graphical Model (CGGM) that encourages variable clustering in the graphical model in a data-driven way. Through the use of an aggregation […]

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Reinforcement Learning (RL) agents often struggle with efficiency and performance in complex environments. We propose a novel framework that uses a Large Language Model (LLM) to dynamically generate a curriculum over available actions, enabling the agent to incorporate each action individually. We apply this framework to the game of Blackjack, where the LLM creates a multi-stage training path that progressively introduces complex actions to a Tabular Q-Learning and a Deep Q-Network (DQN) agent. Our evaluation in a realistic […]

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arXiv:2602.04989v1 Announce Type: new Abstract: Online matching has been a mainstay in domains such as Internet advertising and organ allocation, but practical algorithms often lack strong theoretical guarantees. We take an important step toward addressing this by developing new online matching algorithms based on a coarsening approach. Although coarsening typically implies a loss of granularity, we show that, to the contrary, aggregating offline nodes into capacitated clusters can yield near-optimal theoretical guarantees. We apply our methodology to heart […]

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Bitcoin’s recent moves have stirred debate among traders. BTC has shown strength compared to many altcoins, but resistance has built up near key levels. As a result, some large holders are beginning to rotate capital into lower-priced assets that they believe may offer stronger upside potential in the next phase of the market. One of the cheap crypto names gaining attention is Mutuum Finance (MUTM), a new project building an on-chain lending protocol with an upcoming launch that […]

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I’ve spent some time recently building an RL agent to play competitive Pokémon (Generation 9 Random Battles on Pokémon Showdown). I wanted to share the architecture, the training pipeline, and some thoughts on the MCTS vs. pure-network approaches in this specific environment. Why Pokémon? From an RL perspective, a Pokémon battle is a great proxy for real-world, messy decision-making. It combines three massive headaches: Simultaneous Action: Both agents lock in actions concurrently. You are trying to approximate Nash […]

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arXiv:2602.02496v1 Announce Type: new Abstract: Large Language Models (LLMs) frequently exhibit unfaithful behavior, producing a final answer that differs significantly from their internal chain of thought (CoT) reasoning in order to appease the user they are conversing with. In order to better detect this behavior, we introduce the Hypocrisy Gap, a mechanistic metric utilizing Sparse Autoencoders (SAEs) to quantify the divergence between a model’s internal reasoning and its final generation. By mathematically comparing an internal truth belief, derived […]

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Introduction The hypermedia renaissance is in full swing. After years of SPA dominance, developers are rediscovering the power of server-driven architectures that leverage HTML as the engine of application state. The framework leading this charge, HTMX, focuses exclusively of hypermedia. An alternative, Lightview, doesn’t lock you into hypermedia-only patterns. Unlike HTMX’s focused hypermedia approach, Lightview is a multi-paradigm framework that supports and hypermedia patterns, functional programming with template tag functions like BauJS [https://github.com/grucloud/bau], and JSON representation (like JurisJS […]

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World models learned from high-dimensional visual observations allow agents to make decisions and plan directly in latent space, avoiding pixel-level reconstruction. However, recent latent predictive architectures (JEPAs), including the DINO world model (DINO-WM), display a degradation in test time robustness due to their sensitivity to "slow features". These include visual variations such as background changes and distractors that are irrelevant to the task being solved. We address this limitation by augmenting the predictive objective with a bisimulation encoder […]

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arXiv:2602.12421v1 Announce Type: new Abstract: Autonomous satellite servicing missions must execute close-range rendezvous under stringent safety and operational constraints while remaining computationally tractable for onboard use and robust to uncertainty in sensing, actuation, and dynamics. This paper presents CORTEX (Convex Optimization for Rendezvous Trajectory Execution), an autonomous, perception-enabled, real-time trajectory design and guidance framework for close-range rendezvous. CORTEX integrates a deep-learning perception pipeline with convex-optimisation-based trajectory design and guidance, including reference regeneration and abort-to-safe-orbit logic to recover from […]

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