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We introduce $\textit{Stein transport}$, a novel methodology for Bayesian inference designed to efficiently push an ensemble of particles along a predefined curve of tempered probability distributions. The driving vector field is chosen…

机器学习 · 统计学 2024-12-02 Nikolas Nüsken

Optimal transport distances have become a classic tool to compare probability distributions and have found many applications in machine learning. Yet, despite recent algorithmic developments, their complexity prevents their direct use on…

机器学习 · 统计学 2021-01-07 Kilian Fatras , Younes Zine , Szymon Majewski , Rémi Flamary , Rémi Gribonval , Nicolas Courty

Connecting orbits are important invariant structures in the state space of nonlinear systems and various techniques are designed for their computation. However, a uniform analytic approximation of the whole orbit seems rare. Here, based on…

数学物理 · 物理学 2025-07-02 Pengfei Guo , Yueheng Lan , Jianyong Qiao

We describe a kernel of size 9k-8 for the NP-hard problem of computing the Tree Bisection and Reconnect (TBR) distance k between two unrooted binary phylogenetic trees. We achieve this by extending the existing portfolio of reduction rules…

数据结构与算法 · 计算机科学 2022-09-21 Steven Kelk , Simone Linz , Ruben Meuwese

We introduce a class of variational states to describe quantum many-body systems. This class generalizes matrix product states which underly the density-matrix renormalization group approach by combining them with weighted graph states.…

量子物理 · 物理学 2009-11-13 R. Hübener , C. Kruszynska , L. Hartmann , W. Dür , F. Verstraete , J. Eisert , M. B. Plenio

Potential and mass barriers in graphene introduce electron scattering, modulating transmission probabilities. Complex multi-barrier setups allow electron transmission to be controlled with high precision, but have a huge design space of…

介观与纳米尺度物理 · 物理学 2026-03-10 Leon Browne , Stephen R. Power

In this work, we use a labelled deduction system based on the concept of computational paths (sequence of rewrites) as equalities between two terms of the same type. We also define a term rewriting system that is used to make computations…

计算机科学中的逻辑 · 计算机科学 2019-06-24 Tiago M. L. de Veras , Arthur F. Ramos , Ruy J. G. B. de Queiroz , Anjolina G. de Oliveira

The edit distance under the DCJ model can be computed in linear time for genomes with equal content or with Indels. But it becomes NP-Hard in the presence of duplications, a problem largely unsolved especially when Indels are considered. In…

数据结构与算法 · 计算机科学 2017-05-29 Zhaoming Yin , Jijun Tang , Stephen W. Schaeffer , David A. Bader

This paper introduces a novel method for the efficient second-order accurate computation of normal fields from volume fractions on unstructured polyhedral meshes. Locally, i.e. in each mesh cell, an averaged normal is reconstructed by…

数值分析 · 数学 2023-08-16 Johannes Kromer , Fabio Leotta , Dieter Bothe

The edit distance between two strings is defined as the smallest number of insertions, deletions, and substitutions that need to be made to transform one of the strings to another one. Approximating edit distance in subquadratic time is…

数据结构与算法 · 计算机科学 2018-04-27 Mahdi Boroujeni , Soheil Ehsani , Mohammad Ghodsi , MohammadTaghi HajiAghayi , Saeed Seddighin

We investigate the minimum line-distortion and the minimum bandwidth problems on unweighted graphs and their relations with the minimum length of a Robertson-Seymour's path-decomposition. The length of a path-decomposition of a graph is the…

数据结构与算法 · 计算机科学 2014-10-01 Feodor F. Dragan , Ekkehard Köhler , Arne Leitert

Modellers of large scale genome rearrangement events, in which segments of DNA are inverted, moved, swapped, or even inserted or deleted, have found a natural syntax in the language of permutations. Despite this, there has been a wide range…

其他定量生物学 · 定量生物学 2016-10-04 Sangeeta Bhatia , Pedro Feijão , Andrew R. Francis

We develop a novel theoretical framework for understating OT schemes respecting a class structure. For this purpose, we propose a convex OT program with a sum-of-norms regularization term, which provably recovers the underlying class…

机器学习 · 计算机科学 2023-05-23 Arman Rahbar , Ashkan Panahi , Morteza Haghir Chehreghani , Devdatt Dubhashi , Hamid Krim

Atomistic simulations provide the most detailed picture of grain boundary (GB) migration currently available. Nevertheless, extracting unit mechanisms from atomistic simulation data is difficult because of the zoo of competing,…

材料科学 · 物理学 2025-06-06 Ian Chesser , Brandon Runnels , Elizabeth Holm

We introduce a new approach to an enumerative problem closely linked with the geometry of branched coverings; that is, we study the number of ways a permutation can be decomposed into a product of a given number of 2-cycles, 3-cycles, etc.…

组合数学 · 数学 2007-05-23 John Irving

The analysis of observed time series from nonlinear systems is usually done by making a time-delay reconstruction to unfold the dynamics on a multi-dimensional state space. An important aspect of the analysis is the choice of the correct…

神经元与认知 · 定量生物学 2018-09-05 K. P. Harikrishnan , Rinku Jacob , R. Misra , G. Ambika

In a complete bipartite graph with vertex sets of cardinalities $n$ and $m$, assign random weights from exponential distribution with mean 1, independently to each edge. We show that, as $n\rightarrow\infty$, with $m = \lceil…

概率论 · 数学 2014-05-07 Mustafa Khandwawala

A quantum code is a subspace of a Hilbert space of a physical system chosen to be correctable against a given class of errors, where information can be encoded. Ideally, the quantum code lies within the ground space of the physical system.…

量子物理 · 物理学 2014-12-16 Yingkai Ouyang

Common imaging techniques for detecting structural defects typically require sampling at more than twice the spatial frequency to achieve a target resolution. This study introduces a novel framework for imaging structural defects using…

信号处理 · 电气工程与系统科学 2024-12-03 Wei-Chen Li , Chun-Yeon Lin

This paper introduces a kernel discrepancy-based framework for rerandomization to enhance the precision of causal inference in controlled experiments. We demonstrate that the kernel discrepancy is the key part of the variance upper bound…

统计方法学 · 统计学 2025-11-05 Yiou Li , Lulu Kang
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