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相关论文: SM-DTW: Stability Modulated Dynamic Time Warping f…

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Handwritten Signature Verification (HSV) systems distinguish between genuine and forged signatures. Traditional HSV development involves a static batch configuration, constraining the system's ability to model signatures to the limited data…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Kecia G. de Moura , Rafael M. O. Cruz , Robert Sabourin

Community detection for time series without prior knowledge poses an open challenge within complex networks theory. Traditional approaches begin by assessing time series correlations and maximizing modularity under diverse null models.…

社会与信息网络 · 计算机科学 2023-11-13 Marco Gregnanin , Johannes De Smedt , Giorgio Gnecco , Maurizio Parton

While flow matching is elegant, its reliance on single-sample conditional velocities leads to high-variance training targets that destabilize optimization and slow convergence. By explicitly characterizing this variance, we identify 1) a…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Donglin Yang , Yongxing Zhang , Xin Yu , Liang Hou , Xin Tao , Pengfei Wan , Xiaojuan Qi , Renjie Liao

In this paper, we propose a new method called Self-Training with Dynamic Weighting (STDW), which aims to enhance robustness in Gradual Domain Adaptation (GDA) by addressing the challenge of smooth knowledge migration from the source to the…

机器学习 · 计算机科学 2025-10-17 Zixi Wang , Yushe Cao , Yubo Huang , Jinzhu Wei , Jingzehua Xu , Shuai Zhang , Xin Lai

The dynamic time warping (dtw) distance fails to satisfy the triangle inequality and the identity of indiscernibles. As a consequence, the dtw-distance is not warping-invariant, which in turn results in peculiarities in data mining…

机器学习 · 计算机科学 2018-09-05 Brijnesh J. Jain

In instruction conditioned navigation, agents interpret natural language and their surroundings to navigate through an environment. Datasets for studying this task typically contain pairs of these instructions and reference trajectories.…

机器人学 · 计算机科学 2019-12-02 Gabriel Ilharco , Vihan Jain , Alexander Ku , Eugene Ie , Jason Baldridge

This paper addresses the problem of risk-aware fixed-time stabilization of a class of uncertain, output-feedback nonlinear systems modeled via stochastic differential equations. First, novel classes of certificate functions, namely…

最优化与控制 · 数学 2024-04-01 Mitchell Black , Georgios Fainekos , Bardh Hoxha , Dimitra Panagou

Weighted Majority Voting (WMV) is a well-known optimal decision rule for collective decision making, given the probability of sources to provide accurate information (trustworthiness). However, in reality, the trustworthiness is not a known…

人工智能 · 计算机科学 2024-07-02 Shaojie Bai , Dongxia Wang , Tim Muller , Peng Cheng , Jiming Chen

We investigate metric learning in the context of dynamic time warping (DTW), the by far most popular dissimilarity measure used for the comparison and analysis of motion capture data. While metric learning enables a problem-adapted…

机器学习 · 计算机科学 2019-03-13 Babak Hosseini , Barbara Hammer

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

This paper establishes a far-reaching connection between the Finite-Difference Time-Domain method (FDTD) and the theory of dissipative systems. The FDTD equations for a rectangular region are written as a dynamical system having the…

计算工程、金融与科学 · 计算机科学 2017-04-05 Fadime Bekmambetova , Xinyue Zhang , Piero Triverio

Online signature verification technologies, such as those available in banks and post offices, rely on dedicated digital devices such as tablets or smart pens to capture, analyze and verify signatures. In this paper, we suggest a novel…

密码学与安全 · 计算机科学 2016-12-20 Ben Nassi , Alona Levy , Yuval Elovici , Erez Shmueli

Speeded Up Robust Features (SURF) has emerged as one of the more popular feature descriptors and detectors in recent years. Performance and algorithmic details vary widely between implementations due to SURF's complexity and ambiguities…

计算机视觉与模式识别 · 计算机科学 2012-03-06 Peter Abeles

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

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

Inverse Dynamics Models (IDMs) map visual observations to low-level action commands, serving as central components for data labeling and policy execution in embodied AI. However, their performance degrades severely under manipulator…

机器人学 · 计算机科学 2026-04-21 Kerui Li , Zhe Jing , Xiaofeng Wang , Zheng Zhu , Yukun Zhou , Guan Huang , Dongze Li , Qingkai Yang , Huaibo Huang

We say that an algorithm is stable if small changes in the input result in small changes in the output. This kind of algorithm stability is particularly relevant when analyzing and visualizing time-varying data. Stability in general plays…

数据结构与算法 · 计算机科学 2025-03-10 Wouter Meulemans , Bettina Speckmann , Kevin Verbeek , Jules Wulms

A time series is a sequence of data items; typical examples are streams of temperature measurements, stock ticker data, or gestures recorded with modern virtual reality motion controllers. Quite some research has been devoted to comparing…

数据结构与算法 · 计算机科学 2018-11-30 Jörg P. Bachmann , Johann-Christoph Freytag

Many applications generate and consume temporal data and retrieval of time series is a key processing step in many application domains. Dynamic time warping (DTW) distance between time series of size N and M is computed relying on a dynamic…

数据库 · 计算机科学 2012-08-02 K. Selçuk Candan , Rosaria Rossini , Maria Luisa Sapino , Xiaolan Wang

Ensuring safety through set invariance has proven to be a valuable method in various robotics and control applications. This paper introduces a comprehensive framework for the safe probabilistic invariance verification of both discrete- and…

系统与控制 · 电气工程与系统科学 2024-08-06 Taoran Wu , Yiqing Yu , Bican Xia , Ji Wang , Bai Xue