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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

169,341 papers · 148 categories

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220439659878 · Jun 202019922001200920182026
48 results for Logarithmic improvement

Logarithmic-time schedules boost large-scale language model training efficiency.

problem Improving performance and efficiency in large-scale language model training.
method Designing time-varying hyperparameters (β1,β2,λ)(β_1, β_2, λ) for AdamW, specifically logarithmic-time scheduling with damping mechanisms.
result ADANA optimizer achieves up to 40% compute efficiency compared to tuned AdamW, with gains persisting as model scale increases.

Logarithmic improvements in eigenfunction restriction estimates on hyperbolic manifolds.

problem Logarithmic improvements of L2L^2 geodesic restriction estimates for eigenfunctions.
method Adapting Chen and Sogge's approach, using explicit wave kernel formula, and detailed oscillatory integral estimates.
result Logarithmic improvement to (logλ)12(\logλ)^{-\frac12} in L2L^2-restriction bounds.

New bounds on minimax regret for sequential probability assignment using logarithmic loss.

problem Minimizing regret in sequential probability assignment against arbitrary experts.
method Using self-concordance property of logarithmic loss to derive tight bounds.
result Tight bounds on minimax regret for various expert classes.

The study improves Bochner inequality on Finsler manifolds to derive important inequalities.

problem Improving Bochner inequality on Finsler manifolds to derive new inequalities.
method Using improved Bochner inequality and its integrated form, the study derives a sharp Poincaré-Lichnerowicz inequality, a new proof for logarithmic Sobolev inequality, and an estimate of geodesic ball volumes.
result Derivation of new inequalities and estimates on Finsler manifolds.

The paper improves estimates of eigenfunctions and nodal sets on manifolds with nonpositive sectional curvature.

problem Improving estimates of eigenfunctions and nodal sets on manifolds with nonpositive sectional curvature.
method Combining Toponogov's triangle comparison theorem and propagation of singularities arguments.
result Logarithmic improvements of eigenfunction and nodal set estimates.

This work improves policy evaluation and selection using logarithmic smoothing for pessimistic off-policy estimation.

problem Offline evaluation and selection of policies from past data.
method Develops novel concentration bounds and a logarithmically smoothed estimator (LS) for improved policy selection and learning.
result The logarithmically smoothed estimator (LS) provides tighter bounds and better policy selection and learning.

WaveletNet improves edge device efficiency with logarithmic convolution.

problem Efficiency and performance on edge devices for CNNs.
method Introduces WaveletNet architecture with wavelet convolution and depthwise fast wavelet transform.
result WaveletNet achieves superior and comparable performance to state-of-the-art models on CIFAR-10 and ImageNet.

New bounds for Bayesian bandits show prior improves performance.

problem Improving regret bounds for Bayesian bandits.
method Upper confidence bound algorithm with finite-time logarithmic regret bounds.
result Derives O(cΔlogn)O(c_Δ\log n) and O(chlog2n)O(c_h \log^2 n) upper bounds for Bayesian bandits.

The study improves bounds on the number of closed geodesics and logarithmic improvements in the Weyl law.

problem Estimating the number of closed geodesics and improving logarithmic bounds in the Weyl law.
method Study of non-degeneracy properties of nearly closed orbits for predominant sets of metrics.
result Logarithmic improvements in the Weyl law and exponential bounds on the number of closed geodesics.

Paper analyzes and improves KL-regularized RL for LLMs with logarithmic regret.

problem Improving efficiency of RL fine-tuning for large language models.
method Optimism-based KL-regularized online contextual bandit algorithm with novel regret analysis.
result Achieves an O(ηlog(NRT)dR)\mathcal{O}\big(η\log (N_{\mathcal R} T)\cdot d_{\mathcal R}\big) logarithmic regret bound.

CMT efficiently manages memory by inserting and querying memories in logarithmic time.

problem Managing large memory stores efficiently for quick access and updates.
method Designing a Contextual Memory Tree (CMT) that inserts and retrieves memories in logarithmic time.
result CMT improves classification algorithms and image-captioning tasks, demonstrating better computational efficiency.

Greedy pruning reduces neural networks by a logarithmic number of tickets, improving accuracy.

problem Pruning large neural networks to reduce size while maintaining accuracy.
method Greedy optimization-based pruning method with exponential decay guarantee.
result The discrepancy between pruned and original networks decays exponentially with network size.

Paper shows FB and FC are equally hard up to logarithmic factors.

problem Comparing fixed budget and fixed confidence approaches in best-arm identification.
method Proposes FC2FB, a meta algorithm converting FC to FB.
result FC sample complexity is an upper bound for FB sample complexity up to logarithmic factors.

The paper proves the concavity of pp-entropy power and applies it to functional inequalities.

problem Proving concavity of pp-entropy power on Riemannian manifolds.
method Analyzing the pp-heat equation on closed Riemannian manifolds with nonnegative Ricci curvature.
result New proofs and improvements of LpL^p-Euclidean Nash and Logarithmic Sobolev inequalities.

Paper analyzes and improves adaptive gradient methods for optimization.

problem Improving optimization methods for deep neural networks.
method Analyzes and proposes variants of RMSProp and Adagrad for online convex optimization.
result Proposes SC-Adagrad and SC-RMSProp with logarithmic regret bounds for strongly convex functions.

Quantum ergodic eigenfunctions improve inner radius bounds of nodal domains.

problem Improving bounds on inner radius of nodal domains for quantum ergodic eigenfunctions.
method Using recent results on eigenfunction equidistribution on small balls and modified growth estimates.
result Logarithmic and polynomial improvements on inner radius for various manifolds.

Oracle-efficient algorithms reduce combinatorial semi-bandit regret to logarithmic time.

problem Scalability issue in combinatorial semi-bandit problems due to high combinatorial optimization costs.
method Oracle-efficient frameworks that minimize oracle queries while maintaining tight regret guarantees.
result Achieved ildeO(T) ilde{O}(\sqrt{T}) regret with O(loglogT)O(\log\log T) oracle queries for worst-case linear rewards.

Optimizes quantile and semi-adversarial regret with novel root-logarithmic regularizers.

problem Minimizes regret in adversarial and semi-adversarial online learning.
method FTRL with root-logarithmic regularizers for quantile and semi-adversarial settings.
result Achieves minimax optimal regret bounds in both paradigms.

New method solves ˉ\bar{\partial}-equations for logarithmic forms on Kahler manifolds.

problem Solving ˉ\bar{\partial}-equations for logarithmic forms on Kahler manifolds.
method Using harmonic integral theory for currents on Kahler manifolds.
result Constructs the extension for logarithmic (n,q)(n,q)-forms on the central fiber.

Modified Bakry-Émery criterion inequality for Tsallis entropy monotonicity.

problem Establishing improved logarithmic Sobolev inequalities and monotonicity of Tsallis entropy.
method Proving a one-parameter family of weighted Bakry-Émery Γ2Γ_2 criterion inequalities and a modified inequality.
result Yields a family of sharp Sobolev inequalities and monotonicity of Tsallis entropy.

New rule reduces exploration regret to logarithmic, improving bad episode handling.

problem Improving exploration regret in average reward MDPs.
method Replacing Doubling Trick with Vanishing Multiplicative rule in EVI-based algorithms.
result Regret is logarithmic under the new rule, significantly better than linear.

Study excess logarithmic residues for foliations to bound invariant hypersurfaces and test log canonicity.

problem Bounding invariant hypersurfaces and testing log canonicity of singularities.
method Introduce excess logarithmic residues, prove residue formula, derive Poincaré-type bound, and use them to recover log discrepancies.
result Componentwise logarithmic residues of a lifted foliation along the exceptional divisor recover log discrepancies of singularities.

Logarithmic connections on principal bundles over normal varieties are studied.

problem Existence and properties of logarithmic connections on principal bundles over normal varieties.
method Introducing logarithmic connections, showing equivalence to covariant derivatives, and proving existence conditions.
result Existence of logarithmic connections on principal bundles over normal varieties is equivalent to certain conditions on the associated vector bundles and adjoint bundles.

Study real logarithms of semi-simple matrices, focusing on differential structure.

problem Understanding the differential structure of real logarithms of semi-simple matrices.
method Examines the differential structure of real logarithms of semi-simple matrices under specific matrix types.
result Characterizes the differential structure of real logarithms of semi-simple matrices.

Introduces logarithmic Cartan geometry on complex manifolds with singularities.

problem Holomorphic Cartan geometry with singularities.
method Definition and study of logarithmic Cartan geometry on complex manifolds with polar part supported on a normal crossing divisor.
result Push-forward of a Cartan geometry constructed using a finite Galois ramified covering is a logarithmic Cartan geometry.

Method identifies low-dimensional structure in high-dimensional probability measures.

problem Identifying low-dimensional structure in high-dimensional probability measures.
method Extends prior work on minimizing majorizations of the Kullback-Leibler divergence to identify optimal approximations within a specific class of measures.
result Connection between dimensional logarithmic Sobolev inequality and approximations with the ansatz.

Improved GNN simulation of WL test with exponentially lower complexity.

problem Improving the complexity of simulating the Weisfeiler-Lehman test with GNNs.
method Exponentially lower complexity simulation of WL test using GNNs with polylogarithmic parameters and O(log n) bits feature vectors.
result Near-optimal construction with logarithmic lower bounds for feature vector length and neural network size.

Improved sampling for high-dimensional posteriors with underdamped Langevin.

problem Scalability issues in high-dimensional problems with approximate Thompson sampling.
method Underdamped Langevin Monte Carlo for accelerated posterior concentration.
result Logarithmic regret improvement from ildeO(d)\mathcal{ ilde O}(d) to ildeO(d)\mathcal{ ilde O}(\sqrt{d}).

Logarithmic separation profile in hyperbolic groups shows hierarchical structure.

problem Understanding hierarchical structure in hyperbolic groups with logarithmic separation.
method Proving groups with logarithmic separation split over cyclic groups and providing counterexamples.
result Not all groups with hierarchical structure have logarithmic separation profile.