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Method for detection and visualization of trends, periodicities, local peculiarities in measurement series (dL-method) based on DFA technology (Detrended fluctuation analysis) is proposed. The essence of the method lies in reflecting the…

Applications · Statistics 2009-03-20 D. V. Lande , A. A. Snarskii

Few-shot learning (FSL) aims to learn novel visual categories from very few samples, which is a challenging problem in real-world applications. Many methods of few-shot classification work well on general images to learn global…

Computer Vision and Pattern Recognition · Computer Science 2020-12-15 Xiaojian He , Jinfu Lin , Junming Shen

In this paper, we propose a set of features called temporal accumulative features (TAF) for representing and recognizing isolated sign language gestures. By incorporating sign language specific constructs to better represent the unique…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Ahmet Alp Kındıroğlu , Oğulcan Özdemir , Lale Akarun

Federated semantic segmentation enables pixel-level classification in images through collaborative learning while maintaining data privacy. However, existing research commonly overlooks the fine-grained class relationships within the…

Computer Vision and Pattern Recognition · Computer Science 2025-05-15 Xiaoyang Yu , Xiaoming Wu , Xin Wang , Dongrun Li , Ming Yang , Peng Cheng

Symbolic data analysis (SDA) aggregates large individual-level datasets into a small number of distributional summaries, such as random rectangles or random histograms. The inference is carried out using these summaries in place of the…

Methodology · Statistics 2026-04-02 Yu Yang , Matias Quiroz , Boris Beranger , Robert Kohn , Scott A. Sisson

Existing methods of vector autoregressive model for multivariate time series analysis make use of low-rank matrix approximation or Tucker decomposition to reduce the dimension of the over-parameterization issue. In this paper, we propose a…

Statistics Theory · Mathematics 2026-01-05 Sijia Xia , Michael K. Ng , Xiongjun Zhang

Thanks to the rise of wearable and connected devices, sensor-generated time series comprise a large and growing fraction of the world's data. Unfortunately, extracting value from this data can be challenging, since sensors report low-level…

Machine Learning · Statistics 2016-09-30 Davis W. Blalock , John V. Guttag

Gait recognition is one of the most promising video-based biometric technologies. The edge of silhouettes and motion are the most informative feature and previous studies have explored them separately and achieved notable results. However,…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Yan Sun , Hu Long , Xueling Feng , Mark Nixon

Symbolic music segmentation is the process of dividing symbolic melodies into smaller meaningful groups, such as melodic phrases. We proposed an unsupervised method for segmenting symbolic music. The proposed model is based on an ensemble…

Sound · Computer Science 2022-07-05 Shahaf Bassan , Yossi Adi , Jeffrey S. Rosenschein

In this work, we introduce metrics to evaluate the use of simplified time series in the context of interpretability of a TSC -- a Time Series Classifier. Such simplifications are important because time series data, in contrast to text and…

Machine Learning · Computer Science 2025-11-04 Brigt Håvardstun , Felix Marti-Perez , Cèsar Ferri , Jan Arne Telle

Synthetic Time Series Generation (TSG) is crucial in a range of applications, including data augmentation, anomaly detection, and privacy preservation. Although significant strides have been made in this field, existing methods exhibit…

Machine Learning · Computer Science 2023-12-08 Yihao Ang , Qiang Huang , Yifan Bao , Anthony K. H. Tung , Zhiyong Huang

Time series anomaly detection (TSAD) is an evolving area of research motivated by its critical applications, such as detecting seismic activity, sensor failures in industrial plants, predicting crashes in the stock market, and so on. Across…

This paper proposes a new method for anomaly detection in time-series data by incorporating the concept of difference subspace into the singular spectrum analysis (SSA). The key idea is to monitor slight temporal variations of the…

Machine Learning · Computer Science 2023-04-06 Takumi Kanai , Naoya Sogi , Atsuto Maki , Kazuhiro Fukui

The progression of X-ray technology introduces diverse image styles that need to be adapted to the preferences of radiologists. To support this task, we introduce a novel deep learning-based metric that quantifies style differences of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Dominik Eckert , Christopher Syben , Christian Hümmer , Ludwig Ritschl , Steffen Kappler , Sebastian Stober

Signal decomposition and multiscale signal analysis provide many useful tools for time-frequency analysis. We proposed a random feature method for analyzing time-series data by constructing a sparse approximation to the spectrogram. The…

Signal Processing · Electrical Eng. & Systems 2023-03-17 Nicholas Richardson , Hayden Schaeffer , Giang Tran

We consider the application of the factor graph framework for symbol detection on linear inter-symbol interference channels. Based on the Ungerboeck observation model, a detection algorithm with appealing complexity properties can be…

Information Theory · Computer Science 2022-11-28 Luca Schmid , Laurent Schmalen

Similarity search is a fundamental operation for analyzing data series (DS), which are ordered sequences of real values. To enhance efficiency, summarization techniques are employed that reduce the dimensionality of DS. SAX-based approaches…

Databases · Computer Science 2024-12-04 Patrick Schäfer , Jakob Brand , Ulf Leser , Botao Peng , Themis Palpanas

We propose a new model based on the deconvolutional networks and SAX discretization to learn the representation for multivariate time series. Deconvolutional networks fully exploit the advantage the powerful expressiveness of deep neural…

Machine Learning · Computer Science 2016-12-04 Zhiguang Wang , Wei Song , Lu Liu , Fan Zhang , Junxiao Xue , Yangdong Ye , Ming Fan , Mingliang Xu

Remote sensing imagery has attracted significant attention in recent years due to its instrumental role in global environmental monitoring, land usage monitoring, and more. As image databases grow each year, performing automatic…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jielu Zhang , Zhongliang Zhou , Gengchen Mai , Mengxuan Hu , Zihan Guan , Sheng Li , Lan Mu

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.…

Social and Information Networks · Computer Science 2023-11-13 Marco Gregnanin , Johannes De Smedt , Giorgio Gnecco , Maurizio Parton