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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…

Computer Vision and Pattern Recognition · Computer Science 2019-04-15 Chien-Yi Chang , De-An Huang , Yanan Sui , Li Fei-Fei , Juan Carlos Niebles

Depression and Attention Deficit Hyperactivity Disorder (ADHD) stand out as the common mental health challenges today. In affective computing, speech signals serve as effective biomarkers for mental disorder assessment. Current research,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-03-05 Shuanglin Li , Siyang Song , Rajesh Nair , Syed Mohsen Naqvi

Attention Deficit Hyperactivity Disorder (ADHD) is a prevalent neurodevelopmental disorder with limited objective diagnostic tools, highlighting the urgent need for objective, biology-based diagnostic frameworks in precision psychiatry. We…

Machine Learning · Computer Science 2026-02-25 Nabil Belacel , Mohamed Rachid Boulassel

We propose a new spatio-temporal attention based mechanism for human action recognition able to automatically attend to the hands most involved into the studied action and detect the most discriminative moments in an action. Attention is…

Computer Vision and Pattern Recognition · Computer Science 2017-12-22 Fabien Baradel , Christian Wolf , Julien Mille

Diverse disciplines are interested in how the coordination of interacting agents' movements, emotions, and physiology over time impacts social behavior. Here, we describe a new multivariate procedure for automating the investigation of this…

Human-Computer Interaction · Computer Science 2022-01-14 Adrien Meynard , Gayan Seneviratna , Elliot Doyle , Joyanne Becker , Hau-Tieng Wu , Jana Schaich Borg

Decoding human activity accurately from wearable sensors can aid in applications related to healthcare and context awareness. The present approaches in this domain use recurrent and/or convolutional models to capture the spatio-temporal…

Human-Computer Interaction · Computer Science 2020-12-21 Satya P. Singh , Aimé Lay-Ekuakille , Deepak Gangwar , Madan Kumar Sharma , Sukrit Gupta

Dynamic Time Warping (DTW) is used for matching pairs of sequences and celebrated in applications such as forecasting the evolution of time series, clustering time series or even matching sequence pairs in few-shot action recognition. The…

Computer Vision and Pattern Recognition · Computer Science 2022-11-02 Lei Wang , Piotr Koniusz

Alzheimer's Disease (AD) is a prevalent neurodegenerative condition where early detection is vital. Handwriting, often affected early in AD, offers a non-invasive and cost-effective way to capture subtle motor changes. State-of-the-art…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Changqing Gong , Huafeng Qin , Mounîm A. El-Yacoubi

Gesture recognition has attracted considerable attention owing to its great potential in applications. Although the great progress has been made recently in multi-modal learning methods, existing methods still lack effective integration to…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Zitong Yu , Benjia Zhou , Jun Wan , Pichao Wang , Haoyu Chen , Xin Liu , Stan Z. Li , Guoying Zhao

This paper has been withdrawn by the authors due to insufficient or definition error(s) in the ethics approval protocol. Autism spectrum disorders (ASD) impact the cognitive, social, communicative and behavioral abilities of an individual.…

Computer Vision and Pattern Recognition · Computer Science 2019-09-18 Andrew Cook , Bappaditya Mandal , Donna Berry , Matthew Johnson

Autism Spectrum Disorder (ASD) is one neuro developmental disorder that is now widespread in the world. ASD persists throughout the life of an individual, impacting the way they behave and communicate, resulting to notable deficits…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Godfrin Ismail , Kenneth Chesoli , Golda Moni , Kinyua Gikunda

Attention Deficit Hyperactivity Disorder (ADHD) is a behavioral disorder that impacts an individual's education, relationships, career, and ability to acquire fair and just police interrogations. Yet, traditional methods used to diagnose…

Human-Computer Interaction · Computer Science 2022-04-19 Naba Rizvi , Khalil Mrini

Activity recognition computer vision algorithms can be used to detect the presence of autism-related behaviors, including what are termed "restricted and repetitive behaviors", or stimming, by diagnostic instruments. The limited data that…

Computer Vision and Pattern Recognition · Computer Science 2021-01-12 Peter Washington , Aaron Kline , Onur Cezmi Mutlu , Emilie Leblanc , Cathy Hou , Nate Stockham , Kelley Paskov , Brianna Chrisman , Dennis P. Wall

Human Activity Recognition (HAR) is a cornerstone of ubiquitous computing, with promising applications in diverse fields such as health monitoring and ambient assisted living. Despite significant advancements, sensor-based HAR methods often…

Signal Processing · Electrical Eng. & Systems 2024-03-26 Xiaozhou Ye , Waleed H. Abdulla , Nirmal Nair , Kevin I-Kai Wang

Sensor-based human activity recognition (HAR) requires to predict the action of a person based on sensor-generated time series data. HAR has attracted major interest in the past few years, thanks to the large number of applications enabled…

Machine Learning · Computer Science 2021-03-30 Davide Buffelli , Fabio Vandin

Time Series Classification (TSC) is an important problem with numerous applications in science and technology. Dissimilarity-based approaches, such as Dynamic Time Warping (DTW), are classical methods for distinguishing time series when…

Autism Spectrum Disorders (ASDs) are often associated with specific atypical postural or motor behaviors, of which Stereotypical Motor Movements (SMMs) have a specific visibility. While the identification and the quantification of SMM…

Neural and Evolutionary Computing · Computer Science 2016-06-08 Nastaran Mohammadian Rad , Andrea Bizzego , Seyed Mostafa Kia , Giuseppe Jurman , Paola Venuti , Cesare Furlanello

This paper presents an efficient approach for subsequence search in data streams. The problem consists in identifying coherent repetitions of a given reference time-series, eventually multi-variate, within a longer data stream. Dynamic Time…

Machine Learning · Computer Science 2019-07-17 Antonio Candelieri , Stanislav Fedorov , Enza Messina

Multivariate time series naturally exist in many fields, like energy, bioinformatics, signal processing, and finance. Most of these applications need to be able to compare these structured data. In this context, dynamic time warping (DTW)…

Machine Learning · Computer Science 2016-10-18 Maria-Irina Nicolae , Éric Gaussier , Amaury Habrard , Marc Sebban

Neural networks have become a powerful tool in pattern recognition and part of their success is due to generalization from using large datasets. However, unlike other domains, time series classification datasets are often small. In order to…

Machine Learning · Computer Science 2020-04-21 Brian Kenji Iwana , Seiichi Uchida