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Randomized iterative methods, such as the randomized Kaczmarz method, have gained significant attention for solving large-scale linear systems due to their simplicity and efficiency. Meanwhile, Krylov subspace methods have emerged as a…

Numerical Analysis · Mathematics 2025-05-28 Yonghan Sun , Deren Han , Jiaxin Xie

This paper is about the tiling dynamical systems approach to the study of aperiodic order. We compare and contrast four related types of systems: ordinary (one-dimensional) symbolic systems, one-dimensional tiling systems, multidimensional…

Dynamical Systems · Mathematics 2021-04-07 Natalie Priebe Frank

Verification is a key bottleneck in improving inference speed while maintaining distribution fidelity in Speculative Decoding. Recent work has shown that sequence-level verification leads to a higher number of accepted tokens compared to…

Artificial Intelligence · Computer Science 2026-03-03 Yuxuan Zhou , Fei Huang , Heng Li , Fengyi Wu , Tianyu Wang , Jianwei Zhang , Junyang Lin , Zhi-Qi Cheng

Machine translation evaluation is a very important activity in machine translation development. Automatic evaluation metrics proposed in literature are inadequate as they require one or more human reference translations to compare them with…

Computation and Language · Computer Science 2013-11-18 Nisheeth Joshi , Iti Mathur , Hemant Darbari , Ajai Kumar

We study how to effectively leverage expert feedback to learn sequential decision-making policies. We focus on problems with sparse rewards and long time horizons, which typically pose significant challenges in reinforcement learning. We…

Machine Learning · Computer Science 2018-06-12 Hoang M. Le , Nan Jiang , Alekh Agarwal , Miroslav Dudík , Yisong Yue , Hal Daumé

Although developing proficiency with modeling is a nationally endorsed learning outcome for upper-division undergraduate physics lab courses, no corresponding research-based assessments exist. Our longterm goal is to develop assessments of…

Physics Education · Physics 2018-05-29 Dimitri R. Dounas-Frazer , Jacob T. Stanley , H. J. Lewandowski

This is an expanded version of the notes by the second author of the lectures on Hitchin systems and their quantization given by the first author at the Beijing Summer Workshop in Mathematics and Mathematical Physics ``Integrable Systems…

Algebraic Geometry · Mathematics 2026-03-20 Pavel Etingof , Henry Liu

This paper studies Galerkin approximations applied to the Zakai equation of stochastic filtering. The basic idea of this approach is to project the infinite-dimensional Zakai equation onto some finite-dimensional subspace generated by…

Numerical Analysis · Mathematics 2013-03-06 Rüdiger Frey , Thorsten Schmidt , Ling Xu

We establish that the Weak Galerkin methods are rewritings of the hybridizable discontinuous Galerkin methods.

Numerical Analysis · Mathematics 2018-12-20 Bernardo Cockburn

Parallel implementations of Krylov subspace methods often help to accelerate the procedure of finding an approximate solution of a linear system. However, such parallelization coupled with asynchronous and out-of-order execution often…

Mathematical Software · Computer Science 2023-02-09 Roman Iakymchuk , Jose I. Aliaga

Methods of *-representations in Hilbert space are applied to study of systems of $n$ subspaces in a linear space. It is proved that the problem of description of $n$-transitive subspaces in a finite-dimensional linear space is *-wild for $n…

Representation Theory · Mathematics 2008-04-24 Yuliya P. Moskaleva , Yurii S. Samoilenko

In this work, we investigate the possibility of improving multireference-driven coupled cluster (CC) approaches with an algorithm that iteratively combines complete active space (CAS) calculations with tailored CC and externally corrected…

Chemical Physics · Physics 2025-03-06 Robin Feldmann , Max Mörchen , Jakub Lang , Michał Lesiuk , Markus Reiher

Rational approximations of the matrix sign function lead to multishift methods. For non-Hermitian matrices long recurrences can cause storage problems, which can be circumvented with restarts. Together with deflation we obtain efficient…

High Energy Physics - Lattice · Physics 2010-05-19 Jacques C. R. Bloch , Tobias Breu , Andreas Frommer , Simon Heybrock , Katrin Schäfer , Tilo Wettig

Hierarchical beta process has found interesting applications in recent years. In this paper we present a modified hierarchical beta process prior with applications to hierarchical modeling of multiple data sources. The novel use of the…

Machine Learning · Computer Science 2012-10-19 Sunil Kumar Gupta , Dinh Q. Phung , Svetha Venkatesh

The first part of this survey is a heuristic, non-technical discussion of what an HHS is, and the aim is to provide a good mental picture both to those actively doing research on HHSs and to those who only seek a basic understanding out of…

Geometric Topology · Mathematics 2017-07-04 Alessandro Sisto

This paper is devoted to overview of the authors works for numerical solution of singular integral equations (SIE), polysingular integral equations and multi-dimensional singular integral equations of the second kind. The authors…

Numerical Analysis · Mathematics 2016-11-01 I. V. Boykov

This paper introduces hierarchical quasi-clustering methods, a generalization of hierarchical clustering for asymmetric networks where the output structure preserves the asymmetry of the input data. We show that this output structure is…

Machine Learning · Computer Science 2014-04-21 Gunnar Carlsson , Facundo Mémoli , Alejandro Ribeiro , Santiago Segarra

In this paper we present a novel method for learning hierarchical representations of Markov decision processes. Our method works by partitioning the state space into subsets, and defines subtasks for performing transitions between the…

Machine Learning · Computer Science 2021-12-21 Lorenzo Steccanella , Simone Totaro , Anders Jonsson

For statistical analysis of multiway contingency tables we propose modeling interaction terms in each maximal compact component of a hierarchical model. By this approach we can search for parsimonious models with smaller degrees of freedom…

Statistics Theory · Mathematics 2011-08-23 Hisayuki Hara , Tomonari Sei , Akimichi Takemura

This paper has excessive overlap with the following papers also written by the authors or their collaborators: hep-th/0505013 and 0705.2930.

General Relativity and Quantum Cosmology · Physics 2019-10-21 Ihsan Yilmaz , Melis Aygun , Sezgin Aygun