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Permutation Entropy ($PE$) is a powerful nonlinear analysis technique for univariate time series. Recently, Permutation Entropy for Graph signals ($PEG$) has been proposed to extend PE to data residing on irregular domains. However, $PEG$…

神经元与认知 · 定量生物学 2024-01-17 John Stewart Fabila-Carrasco , Avalon Campbell-Cousins , Mario A. Parra-Rodriguez , Javier Escudero

The complexity of highly interconnected systems is rooted in the interwoven architecture defined by its connectivity structure. In this paper, we develop matrix energy of the underlying connectivity structure as a measure of topological…

物理与社会 · 物理学 2016-08-31 Kaushik Sinha , Olivier L. de Weck

Persistent entropy (PE) is an information-theoretic summary statistic of persistence barcodes that has been widely used to detect regime changes in complex systems. Despite its empirical success, a general theoretical understanding of when…

机器学习 · 统计学 2026-02-11 Matteo Rucco

Entropy metrics are nonlinear measures to quantify the complexity of time series. Among them, permutation entropy is a common metric due to its robustness and fast computation. Multivariate entropy metrics techniques are needed to analyse…

组合数学 · 数学 2022-03-02 John Stewart Fabila-Carrasco , Chao Tan , Javier Escudero

Graph based entropy, an index of the diversity of events in their distribution to parts of a co-occurrence graph, is proposed for detecting signs of structural changes in the data that are informative in explaining latent dynamics of…

社会与信息网络 · 计算机科学 2019-05-03 Yukio Ohsawa

The best way to model, understand, and quantify the information contained in complex systems is an open question in physics, mathematics, and computer science. The uncertain relationship between entropy and complexity further complicates…

机器学习 · 计算机科学 2022-11-10 Stephen Casey

Knowledge graph (KG) embedding methods which map entities and relations to unique embeddings in the KG have shown promising results on many reasoning tasks. However, the same embedding dimension for both dense entities and sparse entities…

计算与语言 · 计算机科学 2022-05-06 Linlin Chao , Xiexiong Lin , Taifeng Wang , Wei Chu

MAP is the problem of finding a most probable instantiation of a set of variables given evidence. MAP has always been perceived to be significantly harder than the related problems of computing the probability of a variable instantiation…

人工智能 · 计算机科学 2011-07-04 A. Darwiche , J. D. Park

Graph similarity search is a common and fundamental operation in graph databases. One of the most popular graph similarity measures is the Graph Edit Distance (GED) mainly because of its broad applicability and high interpretability.…

数据库 · 计算机科学 2018-01-25 Zijian Li , Xun Jian , Xiang Lian , Lei Chen

Existing training criteria in automatic speech recognition(ASR) permit the model to freely explore more than one time alignments between the feature and label sequences. In this paper, we use entropy to measure a model's uncertainty, i.e.…

计算与语言 · 计算机科学 2022-12-26 Ehsan Variani , Ke Wu , David Rybach , Cyril Allauzen , Michael Riley

Monitoring a process over time is so important in manufacturing processes to reduce the waste of money and time. Some charts as Shewhart, CUSUM, and EWMA are common to monitor a process with a single intended attribute which is used in…

Comparing with traditional learning criteria, such as mean square error (MSE), the minimum error entropy (MEE) criterion is superior in nonlinear and non-Gaussian signal processing and machine learning. The argument of the logarithm in…

机器学习 · 统计学 2017-10-13 Badong Chen , Lei Xing , Nanning Zheng , Jose C. Príncipe

A method is proposed to analyze the heartbeat waveform that can yield a reliable characterization of the structure after only a few pulses. The measure suggested is entropy index that is related to the one found effective in describing…

医学物理 · 物理学 2007-05-23 Rudolph C. Hwa

In this paper we introduce a new data-driven run-time monitoring system for analysing the behaviour of time evolving complex systems. The monitor controls the evolution of the whole system but it is mined from the data produced by its…

计算机科学中的逻辑 · 计算机科学 2019-08-12 Matteo Rucco , Luca Tesei , Emanuela Merelli

Item neighbourhood methods for collaborative filtering learn a weighted graph over the set of items, where each item is connected to those it is most similar to. The prediction of a user's rating on an item is then given by that rating of…

机器学习 · 计算机科学 2012-06-22 Aaron Defazio , Tiberio Caetano

Entropy is the measure of uncertainty in any data and is adopted for maximisation of mutual information in many remote sensing operations. The availability of wide entropy variations motivated us for an investigation over the suitability…

计算机视觉与模式识别 · 计算机科学 2014-05-26 S. K. Katiyar , P. V. Arun

Whether a system is to be considered complex or not depends on how one searches for correlations. We propose a general scheme for calculation of entropies in lattice systems that has high flexibility in how correlations are successively…

统计力学 · 物理学 2015-06-18 Torbjørn Helvik , Kristian Lindgren

Transitivity, the existence of periodic points and positive topological entropy can be used to characterize complexity in dynamical systems. It is known that for graphs that are not trees, for every $\varepsilon>0,$ there exist (complicate)…

动力系统 · 数学 2018-07-05 Lluís Alsedà , Liane Bordignon , Jorge Groisman

Entropy is a classical measure to quantify the amount of information or complexity of a system. Various entropy-based measures such as functional and spectral entropies have been proposed in brain network analysis. However, they are less…

神经元与认知 · 定量生物学 2018-03-08 Hyekyoung Lee , Eunkyung Kim , Hyejin Kang , Youngmin Huh , Youngjo Lee , Seonhee Lim , Dong Soo Lee

This paper introduces a simple measure of a concordance pattern among observed outcomes along a network, i.e., the pattern in which adjacent outcomes tend to be more strongly correlated than non-adjacent outcomes. The graph concordance…

统计方法学 · 统计学 2017-09-04 Kyungchul Song