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相关论文: Large x Resummation in Q^2 Evolution

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Renormalization-group methods in soft-collinear effective theory are used to perform the resummation of large perturbative logarithms for deep-inelastic scattering in the threshold region x->1. The factorization theorem for the structure…

高能物理 - 唯象学 · 物理学 2010-10-27 Thomas Becher , Matthias Neubert , Ben D. Pecjak

Diffusion models have achieved remarkable progress in universal image restoration. While existing methods speed up inference by reducing sampling steps, substantial step intervals often introduce cumulative errors. Moreover, they struggle…

计算机视觉与模式识别 · 计算机科学 2025-05-09 Hebaixu Wang , Jing Zhang , Haonan Guo , Di Wang , Jiayi Ma , Bo Du

Using repeated Laplace transform techniques, along with newly-developed accurate numerical inverse Laplace transform algorithms, we transform the coupled, integral-differential NLO singlet DGLAP equations first into coupled differential…

高能物理 - 唯象学 · 物理学 2015-03-17 Martin M. Block , Loyal Durand , Phuoc Ha , Douglas W. McKay

The solution of DGLAP evolution equation for the twist-3 gluon operators is obtained in the Double Logarithmic Approximation of QCD perturbation theory. The method used for the solution is similar to the reggeon field theory. The…

高能物理 - 唯象学 · 物理学 2014-11-17 A. G. Shuvaev

In this talk we report on the recent progresses on IR logarithms resummation for the Thrust distribution in e^{+}e^{-} collisions. Using renormalisation group (RG) evolution in Laplace space, the resummation of logarithmically enhanced…

高能物理 - 唯象学 · 物理学 2012-02-29 Pier Francesco Monni

We examine critically the evidence for deviations from next-to-leading order perturbative DGLAP evolution in HERA data. We briefly review the status of perturbative small-x resummation and of global determinations of parton distributions.…

高能物理 - 唯象学 · 物理学 2011-03-15 Fabrizio Caola , Stefano Forte , Juan Rojo

We review the current status of small x resummation of evolution of parton distributions and of deep-inelastic coefficient functions. We show that the resummed perturbative expansion is stable, robust upon different treatments of subleading…

高能物理 - 唯象学 · 物理学 2015-05-13 Stefano Forte , Guido Altarelli , Richard D. Ball

We present an innovative method to resum infrared and collinear logarithms appearing in distributions of jet observables in QCD. The method, based on a general master formula with applicability conditions, allows resummations at…

高能物理 - 唯象学 · 物理学 2007-05-23 Giulia Zanderighi

Latent Dirichlet Allocation (LDA) is a prominent generative probabilistic model used for uncovering abstract topics within document collections. In this paper, we explore the effectiveness of augmenting topic models with Large Language…

计算与语言 · 计算机科学 2025-07-14 Mengze Hong , Chen Jason Zhang , Di Jiang

The remarkable capabilities of Large Language Models (LLMs) are overshadowed by their immense computational cost. While recent work has shown that many LLM layers can be reordered or even removed with minimal impact on accuracy, these…

机器学习 · 计算机科学 2026-01-07 Ramón Calvo González , Daniele Paliotta , Matteo Pagliardini , Martin Jaggi , François Fleuret

We explain particular, unique, approximate solutions of the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations and also solutions of DGLAP evolution equations by using regge behaviour of structure functions and method of…

高能物理 - 唯象学 · 物理学 2010-05-07 R. Rajkhowa

In $e^+e^-$ shape-variable studies, and in particular for the case of thrust, fixed-order QCD predictions are typically supplemented with the resummation of contributions enhanced near the two-jet limit. In this work we examine whether…

高能物理 - 唯象学 · 物理学 2026-03-09 Luca Buonocore , Paolo Nason , Luca Rottoli , Paolo Torrielli

In [7], a new iterative method for solving linear system of equations was presented which can be considered as a modification of the Gauss-Seidel method. Then in [4] a different approach, say 2D-DSPM, and more effective one was introduced.…

数值分析 · 数学 2009-06-10 Davod Khojasteh Salkuyeh

Question answering on free-form tables (a.k.a. TableQA) is a challenging task because of the flexible structure and complex schema of tables. Recent studies use Large Language Models (LLMs) for this task, exploiting their capability in…

计算与语言 · 计算机科学 2025-06-17 Yuxiang Wang , Jianzhong Qi , Junhao Gan

Large language models (LLMs) can solve arithmetic word problems with high accuracy, but little is known about how well they generalize to more complex problems. This is difficult to study, as (i) much of the available evaluation data has…

机器学习 · 计算机科学 2025-02-17 Andreas Opedal , Haruki Shirakami , Bernhard Schölkopf , Abulhair Saparov , Mrinmaya Sachan

We adapt a symmetric interior penalty discontinuous Galerkin method using a patch reconstructed approximation space to solve elliptic eigenvalue problems, including both second and fourth order problems in 2D and 3D. It is a direct…

数值分析 · 数学 2019-11-26 Ruo Li , Zhiyuan Sun , Fanyi Yang

We introduce a dynamic approach to probabilistic forecast reconciliation at scale. Our model differs from the existing literature in this area in several important ways. Firstly we explicitly allow the weights allocated to the base…

统计方法学 · 统计学 2024-09-20 Ross Hollyman , Fotios Petropoulos , Michael E. Tipping

Recent advances show that two-dimensional linear discriminant analysis (2DLDA) is a successful matrix based dimensionality reduction method. However, 2DLDA may encounter the singularity issue theoretically and the sensitivity to outliers.…

机器学习 · 计算机科学 2018-10-26 Chun-Na Li , Yuan-Hai Shao , Wei-Jie Chen , Zhen Wang , Nai-Yang Deng

Based on the joint bidiagonalization process of a large matrix pair $\{A,L\}$, we propose and develop an iterative regularization algorithm for the large scale linear discrete ill-posed problems in general-form regularization: $\min\|Lx\| \…

数值分析 · 数学 2020-07-21 Zhongxiao Jia , Yanfei Yang

We give improved algorithms for the $\ell_{p}$-regression problem, $\min_{x} \|x\|_{p}$ such that $A x=b,$ for all $p \in (1,2) \cup (2,\infty).$ Our algorithms obtain a high accuracy solution in $\tilde{O}_{p}(m^{\frac{|p-2|}{2p + |p-2|}})…

数据结构与算法 · 计算机科学 2024-12-20 Deeksha Adil , Rasmus Kyng , Richard Peng , Sushant Sachdeva