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The ubiquity of sequences in many domains enhances significant recent interest in sequence learning, for which a basic problem is how to measure the distance between sequences. Dynamic time warping (DTW) aligns two sequences by nonlinear…

机器学习 · 计算机科学 2017-03-06 Zhichen Gong , Huanhuan Chen

Dynamic Time Warping (DTW) is an algorithm to align temporal sequences with possible local non-linear distortions, and has been widely applied to audio, video and graphics data alignments. DTW is essentially a point-to-point matching method…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Jiaping Zhao , Laurent Itti

Dynamic time warping (DTW) is an effective dissimilarity measure in many time series applications. Despite its popularity, it is prone to noises and outliers, which leads to singularity problem and bias in the measurement. The time…

机器学习 · 计算机科学 2022-08-04 Xiaomin Song , Qingsong Wen , Yan Li , Liang Sun

Modern applications such as voice recognition rely on the ability to compare signals to pre-recorded ones to classify them. However, this comparison typically needs to ignore differences due to signal noise, temporal offset, signal…

机器学习 · 计算机科学 2022-06-16 Arvind Seshan

Dynamic Time Wrapping (DTW) is a widely used algorithm for measuring similarities between two time series. It is especially valuable in a wide variety of applications, such as clustering, anomaly detection, classification, or video…

机器学习 · 计算机科学 2023-01-31 Hugo Lerogeron , Romain Picot-Clemente , Alain Rakotomamonjy , Laurent Heutte

This paper addresses learning end-to-end models for time series data that include a temporal alignment step via dynamic time warping (DTW). Existing approaches to differentiable DTW either differentiate through a fixed warping path or apply…

机器学习 · 计算机科学 2023-03-21 Ming Xu , Sourav Garg , Michael Milford , Stephen Gould

Dictionary learning is an effective tool for pattern recognition and classification of time series data. Among various dictionary learning techniques, the dynamic time warping (DTW) is commonly used for dealing with temporal delays,…

机器学习 · 统计学 2023-07-03 Ruiyu Xu , Chao Wang , Yongxiang Li , Jianguo Wu

It is well understood that Dynamic Time Warping (DTW) is effective in revealing similarities between time series that do not align perfectly. In this paper, we illustrate this on spectroscopy time-series data. We show that DTW is effective…

机器学习 · 计算机科学 2020-10-13 Vivek Mahato , Pádraig Cunningham

DTW calculates the similarity or alignment between two signals, subject to temporal warping. However, its computational complexity grows exponentially with the number of time-series. Although there have been algorithms developed that are…

机器学习 · 计算机科学 2019-03-25 Soheil Khorram , Melvin G McInnis , Emily Mower Provost

Time-series data originate from various applications that describe specific observations or quantities of interest over time. Their analysis often involves the comparison across different time-series data sequences, which in turn requires…

机器学习 · 计算机科学 2024-02-15 Kishansingh Rajput , Duong Binh Nguyen , Guoning Chen

The paper presents a novel method of finding a fragment in a long temporal sequence similar to the set of shorter sequences. We are the first to propose an algorithm for such a search that does not rely on computing the average sequence…

数据结构与算法 · 计算机科学 2024-09-04 Łukasz Borchmann , Dawid Jurkiewicz , Filip Graliński , Tomasz Górecki

Dynamic time warping (DTW) can be used to compute the similarity between two sequences of generally differing length. We propose a modification to DTW that performs individual and independent pairwise alignment of feature trajectories. The…

声音 · 计算机科学 2018-10-31 Lerato Lerato , Thomas Niesler

We investigate usage of dynamic time warping (DTW) algorithm for aligning raw signal data from MinION sequencer. DTW is mostly using for fast alignment for selective sequencing to quickly determine whether a read comes from sequence of…

定量方法 · 定量生物学 2017-05-05 Vladimír Boža , Broňa Brejová , Tomáš Vinař

Dynamic Time Warping (DTW) is a widely used similarity measure for comparing strings that encode time series data, with applications to areas including bioinformatics, signature verification, and speech recognition. The standard…

数据结构与算法 · 计算机科学 2022-07-05 Zoe Xi , William Kuszmaul

Dynamic time warping distance (DTW) is a widely used distance measure between time series. The best known algorithms for computing DTW run in near quadratic time, and conditional lower bounds prohibit the existence of significantly faster…

数据结构与算法 · 计算机科学 2019-05-27 William Kuszmaul

Aligning structured data is a fundamental problem in computer vision and machine learning, underlying tasks such as time series analysis, human action recognition, and visual representation learning. Existing alignment methods, including…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Lei Wang , Syuan-Hao Li , Yongsheng Gao , Piotr Koniusz

We address weakly supervised action alignment and segmentation in videos, where only the order of occurring actions is available during training. We propose Discriminative Differentiable Dynamic Time Warping (D3TW), the first discriminative…

计算机视觉与模式识别 · 计算机科学 2019-04-15 Chien-Yi Chang , De-An Huang , Yanan Sui , Li Fei-Fei , Juan Carlos Niebles

Dynamic Time Warping (DTW) is widely used for temporal data processing. However, existing methods can neither learn the discriminative prototypes of different classes nor exploit such prototypes for further analysis. We propose…

计算机视觉与模式识别 · 计算机科学 2021-03-18 Xiaobin Chang , Frederick Tung , Greg Mori

Dynamic time warping (DTW) is a well-known algorithm for time series elastic dissimilarity measure. Its ability to deal with non-linear time distortions makes it helpful in variety of data mining tasks. Such a task is also anomaly detection…

机器学习 · 计算机科学 2023-10-05 Matej Kloska , Gabriela Grmanova , Viera Rozinajova

Dynamic Time Warping (DTW) is a well-known similarity measure for time series. The standard dynamic programming approach to compute the DTW distance of two length-$n$ time series, however, requires~$O(n^2)$ time, which is often too slow for…

数据结构与算法 · 计算机科学 2020-04-21 Vincent Froese , Brijnesh Jain , Maciej Rymar , Mathias Weller
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