technocracy

Hi guys, I’m new to the libary CleanRL. I have run some training scripts by using the `uv run python cleanrl/….py` command. I’m not sure if this can save the best policy (e.g. the policy returns best episode rewards) during training. I just went through the documentation of CleanRL and found no information about this. Do you know how can I save the best policy during training and load it after training ? submitted by /u/ZitaLovesCats [link] [comments]

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arXiv:2602.17819v1 Announce Type: new Abstract: We present a variational optimization approach for the solution of a coefficient inverse problem of simultaneous reconstruction of the dielectric permittivity and conductivity functions in time-dependent Maxwell’s system using limited boundary observations of the electric field. The variational optimization approach is based on constructing a weak form of a Lagrangian which allows to use finite element based reconstruction algorithms. The optimality conditions for the Lagrangian and stability estimate for the adjoint problem are […]

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I’ve been working on cuLSH, a GPU-accelerated library for Locality Sensitive Hashing. Main Features: Scikit-Learn Style API: Uses a familiar fit() / query() style API for building and searching the LSH index. CUDA-native: All components (projection generation, hashing, indexing, querying), are performed on the GPU via custom kernels. End-to-End: Not just a hasher; includes bucketed searching and candidate neighbor collection. I know there are plenty of LSH implementations out there, but many focus purely on generating signatures rather […]

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Robert Wright traces a grand pattern beneath history: life’s long drift toward cooperation. From single cells to civilizations, progress blooms when we play games where everyone can win. Evolution, technology, and morality, he suggests, are not accidents, but echoes of a deeper logic pulling humanity toward shared destiny.

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Prediction of crystal system from X-ray diffraction (XRD) spectra is a critical task in materials science, particularly for perovskite materials which are known for their diverse applications in photovoltaics, optoelectronics, and catalysis. In this study, we present a machine learning (ML)-driven framework that leverages advanced models, including Time Series Forest (TSF), Random Forest (RF), Extreme Gradient Boosting (XGBoost), Recurrent Neural Network (RNN), Long Short-Term Memory (LSTM), Gated Recurrent Unit (GRU), and a simple feedforward neural network (NN), to […]

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We propose an algorithm for estimating the finite-horizon expected return of a closed loop control policy from an a priori given (off-policy) sample of one-step transitions. It averages cumulated rewards along a set of “broken trajectories” made of one-step transitions selected from the sample on the basis of the control policy. Under some Lipschitz continuity assumptions on the system dynamics, reward function and control policy, we provide bounds on the bias and variance of the estimator that depend […]

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arXiv:2602.12418v1 Announce Type: new Abstract: Jailbreak attacks remain a persistent threat to large language model safety. We propose Context-Conditioned Delta Steering (CC-Delta), an SAE-based defense that identifies jailbreak-relevant sparse features by comparing token-level representations of the same harmful request with and without jailbreak context. Using paired harmful/jailbreak prompts, CC-Delta selects features via statistical testing and applies inference-time mean-shift steering in SAE latent space. Across four aligned instruction-tuned models and twelve jailbreak attacks, CC-Delta achieves comparable or better safety-utility […]

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The framework of the research whose part of results are published in this work is the category of real vector bundles over finite dimensional differentiable manifolds. The objects of studies are ( textit{gauge structures on these vector bundles} ). We are interested in dynamical properties of the holonomy groups of Koszul connections as well as on their topological properties, i.e. properties that are of homological nature. For the most part the context is the subcategory of Lie algebroids. […]

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