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We discuss existence of mixed state of multicomponent system with given spectrum and given reduced density matrices. We give a complete solution of the problem in terms of linear inequalities on the spectra, accompanied with extensive…

量子物理 · 物理学 2007-05-23 Alexander Klyachko

Label embedding is a framework for multiclass classification problems where each label is represented by a distinct vector of some fixed dimension, and training involves matching model output to the vector representing the correct label.…

机器学习 · 计算机科学 2025-09-01 Jianxin Zhang , Clayton Scott

The present research is developed into the realm of industrial design engineering and additive manufacturing by introducing a parametric design model and adaptive mechanical analysis for a new lattice structure, with a focus on 3D additive…

The multiple-biomarker classifier problem and its assessment are reviewed against the background of some fundamental principles from the field of statistical pattern recognition, machine learning, or the recently so-called "data science". A…

基因组学 · 定量生物学 2019-11-01 Waleed A. Yousef

Various tasks are reformulated as multi-label classification problems, in which the binary cross-entropy (BCE) loss is frequently utilized for optimizing well-designed models. However, the vanilla BCE loss cannot be tailored for diverse…

机器学习 · 计算机科学 2023-04-12 Yusheng Huang , Jiexing Qi , Xinbing Wang , Zhouhan Lin

Machine learning-based classifiers are commonly evaluated by metrics like accuracy, but deeper analysis is required to understand their strengths and weaknesses. MLMC is a visual exploration tool that tackles the challenge of multi-label…

机器学习 · 计算机科学 2025-01-27 Aleksandar Doknic , Torsten Möller

The number state method is used to study soliton bands for three anharmonic quantum lattices: i) The discrete nonlinear Schr\"{o}dinger equation, ii) The Ablowitz-Ladik system, and iii) A fermionic polaron model. Each of these systems is…

高能物理 - 理论 · 物理学 2009-10-28 A. C. Scott , J. C. Eilbeck , H. Gilhøj

An information-spectrum approach is applied to solve the multiterminal source coding problem for correlated general sources, where sources may be nonstationary and/or nonergodic, and the distortion measure is arbitrary and may be…

信息论 · 计算机科学 2007-07-13 Shengtian Yang , Peiliang Qiu

Multiparameter persistent homology has been largely neglected as an input to machine learning algorithms. We consider the use of lattice-based convolutional neural network layers as a tool for the analysis of features arising from…

代数拓扑 · 数学 2022-09-01 Hans Riess , Jakob Hansen , Robert Ghrist

We suggest that a certain one-to-one parametrization of completely positive maps on the matrix algebra might be useful in the study of quantum channels. This is illustrated in the case of binary quantum channels. While the algorithm is…

算子代数 · 数学 2007-05-23 T. Constantinescu

Diversities are a generalization of metric spaces, where instead of the non-negative function being defined on pairs of points, it is defined on arbitrary finite sets of points. Diversities have a well-developed theory. This includes the…

度量几何 · 数学 2020-10-23 David Bryant , Raúl Felipe , Mauricio Toledo-Acosta , Paul Tupper

The eigenvalue spectrum $\rho(\lambda)$ of the Dirac operator is numerically calculated in lattice QCD with 2+1 flavors of dynamical domain-wall fermions. In the high-energy regime, the discretization effects become significant. We subtract…

高能物理 - 格点 · 物理学 2018-07-11 Katsumasa Nakayama , Hidenori Fukaya , Shoji Hashimoto

We consider Zador's asymptotic formula for the distortion-rate function for a variable-rate vector quantizer in the high-rate case. This formula involves the differential entropy of the source, the rate of the quantizer in bits per sample,…

组合数学 · 数学 2016-11-15 N. J. A. Sloane , Vinay A. Vaishampayan

A Lattice is a partially ordered set where both least upper bound and greatest lower bound of any pair of elements are unique and exist within the set. K\"{o}tter and Kschischang proved that codes in the linear lattice can be used for error…

离散数学 · 计算机科学 2021-09-30 Pranab Basu

It is customary to deploy uniform scalar quantization in the end-to-end optimized Neural image compression methods, instead of more powerful vector quantization, due to the high complexity of the latter. Lattice vector quantization (LVQ),…

图像与视频处理 · 电气工程与系统科学 2024-11-26 Xi Zhang , Xiaolin Wu

Multi-label classification is a widely encountered problem in daily life, where an instance can be associated with multiple classes. In theory, this is a supervised learning method that requires a large amount of labeling. However,…

计算机视觉与模式识别 · 计算机科学 2023-08-02 XIn Zhang , Yuqi Song , Fei Zuo , Xiaofeng Wang

Scalar lattice quantization with a modulo operator, dithering, and probabilistic shaping is applied to the Wyner-Ziv (WZ) problem with a Gaussian source and mean square error distortion. The method achieves the WZ rate-distortion pairs. The…

信息论 · 计算机科学 2025-06-17 Muhammed Yusuf Sener , Gerhard Kramer , Shlomo Shamai , Wen Xu

In this article we introduce the study of the number of pairs of non-comparable elements in a distributive lattice $\L$. We give several tight lower and upper bounds for the number and give as an application the lattices precisely for which…

组合数学 · 数学 2014-05-06 Himadri Mukherjee

The field of analytic combinatorics, which studies the asymptotic behaviour of sequences through analytic properties of their generating functions, has led to the development of deep and powerful tools with applications across mathematics…

组合数学 · 数学 2017-09-18 Stephen Melczer

A simple d-dimensional lattice model is proposed, incorporating some degree of frustration and thus capable of describing some aspects of molecular orientation in covalently bound molecular solids. For d=2 the model is shown to be…

凝聚态物理 · 物理学 2009-10-30 Fabio Siringo