Results 31 to 40 of about 1,143,126 (364)

Improved LDTW Algorithm Based on the Alternating Matrix and the Evolutionary Chain Tree

open access: yesSensors, 2022
Dynamic time warping under limited warping path length (LDTW) is a state-of-the-art time series similarity evaluation method. However, it suffers from high space-time complexity, which makes some large-scale series evaluations impossible.
Zheng Zou   +3 more
doaj   +1 more source

Tight lower bounds for dynamic time warping [PDF]

open access: yesPattern Recognition, 2021
26 pages, 23 figures, expanded version of a paper accepted for publication in Pattern Recognition.
Webb, Geoffrey I., Petitjean, Francois
openaire   +2 more sources

IDENTIFIKASI WAJAH MENGGUNAKAN KLASIFIKASI DYNAMIC TIME WARPING

open access: yesSistemasi: Jurnal Sistem Informasi, 2018
Di era modern saat ini, banyak organisasi-organisasi, institusi maupun perusahaan yang membutuhkan adanya identifikasi dan verifikasi akan identitas seseorang.
Febri Ariyanto
doaj   +1 more source

Efficient alignment-based average delay time estimation in fluctuating delayed propagation

open access: yesArray, 2022
We propose an alignment-based average delay time estimation algorithm between two time series in the propagation of time-varying delay. Though the number of the minimum cost alignments may be exponential in the length of the time series, the proposed ...
Atsuyoshi Nakamura, Tatsuya Hayashi
doaj   +1 more source

Similarity Measure Based on Incremental Warping Window for Time Series Data Mining

open access: yesIEEE Access, 2019
A similarity measure is one of the most important tasks in the fields of time series data mining. Its quality often affects the efficiency and effectiveness of the related algorithms that need to measure the similarity between two time series in advance.
Hailin Li, Cheng Wang
doaj   +1 more source

Dynamic Time Warping of Pulse Wave Curves

open access: yesCurrent Directions in Biomedical Engineering, 2018
Being able to non-obtrusively and continuously monitor arterial blood pressure is of great interest, particularly in the context of wearable sensors. A common limitation is the need for dedicated hardware, which is either obtrusive or expensive.
Pielmuş Alexandru-Gabriel   +6 more
doaj   +1 more source

Simultaneous Localization and Recognition of Dynamic Hand Gestures [PDF]

open access: yes, 2004
A framework for the simultaneous localization and recognition of dynamic hand gestures is proposed. At the core of this framework is a dynamic space-time warping (DSTW) algorithm, that aligns a pair of query and model gestures in both space and time. For
J. Alon   +4 more
core   +7 more sources

A pair hidden Markov support vector machine for alignment of human actions [PDF]

open access: yes, 2016
© 2016 IEEE. Alignment of human actions in videos is an important task for applications such as action comparison and classification. While well-established algorithms such as dynamic time warping are available for this task, they still heavily rely on ...
Piccardi, M, Wang, Z
core   +1 more source

D3TW: Discriminative Differentiable Dynamic Time Warping for Weakly Supervised Action Alignment and Segmentation [PDF]

open access: yesComputer Vision and Pattern Recognition, 2019
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 model using ...
C. Chang   +4 more
semanticscholar   +1 more source

Making the dynamic time warping distance warping-invariant [PDF]

open access: yesPattern Recognition, 2019
The literature postulates that the dynamic time warping (dtw) distance can cope with temporal variations but stores and processes time series in a form as if the dtw-distance cannot cope with such variations. To address this inconsistency, we first show that the dtw-distance is not warping-invariant.
openaire   +2 more sources

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