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Anomaly detection, where data instances are discovered containing feature patterns different from the majority, plays a fundamental role in various applications. However, it is challenging for existing methods to handle the scenarios where…

Machine Learning · Computer Science 2023-04-24 Guanchu Wang , Ninghao Liu , Daochen Zha , Xia Hu

Time series anomaly detection plays a critical role in automated monitoring systems. Most previous deep learning efforts related to time series anomaly detection were based on recurrent neural networks (RNN). In this paper, we propose a…

Machine Learning · Computer Science 2019-06-03 Tailai Wen , Roy Keyes

Cross-modal retrieval has drawn wide interest for retrieval across different modalities of data. However, existing methods based on DNN face the challenge of insufficient cross-modal training data, which limits the training effectiveness…

Multimedia · Computer Science 2017-08-16 Xin Huang , Yuxin Peng , Mingkuan Yuan

With the rapid development of deep learning techniques, the generation and counterfeiting of multimedia material are becoming increasingly straightforward to perform. At the same time, sharing fake content on the web has become so simple…

Multimedia · Computer Science 2022-09-19 Davide Salvi , Brian Hosler , Paolo Bestagini , Matthew C. Stamm , Stefano Tubaro

With the rapid proliferation of information across digital platforms, stance detection has emerged as a pivotal challenge in social media analysis. While most of the existing approaches focus solely on textual data, real-world social media…

Computer Vision and Pattern Recognition · Computer Science 2025-09-11 Lata Pangtey , Omkar Kabde , Shahid Shafi Dar , Nagendra Kumar

Systems that can find correspondences between multiple modalities, such as between speech and images, have great potential to solve different recognition and data analysis tasks in an unsupervised manner. This work studies multimodal…

Computer Vision and Pattern Recognition · Computer Science 2024-03-08 Khazar Khorrami , Okko Räsänen

Multimodal semantic communication has gained widespread attention due to its ability to enhance downstream task performance. A key challenge in such systems is the effective fusion of features from different modalities, which requires the…

Image and Video Processing · Electrical Eng. & Systems 2025-09-03 Haoshuo Zhang , Yufei Bo , Hongwei Zhang , Meixia Tao

Irregularly-sampled time series (ITS) are native to high-impact domains like healthcare, where measurements are collected over time at uneven intervals. However, for many classification problems, only small portions of long time series are…

Machine Learning · Computer Science 2023-02-09 Thomas Hartvigsen , Jidapa Thadajarassiri , Xiangnan Kong , Elke Rundensteiner

Image-text matching is a key multimodal task that aims to model the semantic association between images and text as a matching relationship. With the advent of the multimedia information age, image, and text data show explosive growth, and…

Machine Learning · Computer Science 2024-06-24 Jinyin Wang , Haijing Zhang , Yihao Zhong , Yingbin Liang , Rongwei Ji , Yiru Cang

Targeting at both high efficiency and performance, we propose AlignTTS to predict the mel-spectrum in parallel. AlignTTS is based on a Feed-Forward Transformer which generates mel-spectrum from a sequence of characters, and the duration of…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-05 Zhen Zeng , Jianzong Wang , Ning Cheng , Tian Xia , Jing Xiao

Time series analysis has gained significant attention due to its critical applications in diverse fields such as healthcare, finance, and sensor networks. The complexity and non-stationarity of time series make it challenging to capture the…

Machine Learning · Computer Science 2024-10-31 Guancen Lin , Cong Shen , Aijing Lin

Medical Anomaly Detection (MedAD) presents a significant opportunity to enhance diagnostic accuracy using Large Multimodal Models (LMMs) to interpret and answer questions based on medical images. However, the reliance on Supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Haitao Zhang , Yingying Wang , Jiaxiang Wang , Haote Xu , Hongyang Zhang , Yirong Chen , Yue Huang , Xinghao Ding

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

Audio-text retrieval enables semantic alignment between audio content and natural language queries, supporting applications in multimedia search, accessibility, and surveillance. However, current state-of-the-art approaches struggle with…

Computation and Language · Computer Science 2026-04-28 Meizhu Liu , Matthew Rowe , Amit Agarwal , Michael Avendi , Yassi Abbasi , Hitesh Laxmichand Patel , Paul Li , Kyu J. Han , Tao Sheng , Sujith Ravi , Dan Roth

Multimodal misinformation floods on various social media, and continues to evolve in the era of AI-generated content (AIGC). The emerged misinformation with low creation cost and high deception poses significant threats to society. While…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Junjie Wu , Guohong Fu

Clinical decision support systems (CDSSs) have been widely utilized to support the decisions made by cardiologists when detecting and classifying arrhythmia from electrocardiograms (ECGs). However, forming a CDSS for the arrhythmia…

Signal Processing · Electrical Eng. & Systems 2023-10-16 Yun Kwan Kim , Minji Lee , Kunwook Jo , Hee Seok Song , Seong-Whan Lee

Most existing methods in vision-language retrieval match two modalities by either comparing their global feature vectors which misses sufficient information and lacks interpretability, detecting objects in images or videos and aligning the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Xiaohan Zou , Changqiao Wu , Lele Cheng , Zhongyuan Wang

Cross-modal text-molecule retrieval model aims to learn a shared feature space of the text and molecule modalities for accurate similarity calculation, which facilitates the rapid screening of molecules with specific properties and…

Information Retrieval · Computer Science 2024-11-01 Jia Song , Wanru Zhuang , Yujie Lin , Liang Zhang , Chunyan Li , Jinsong Su , Song He , Xiaochen Bo

The goal of multimodal summarization is to extract the most important information from different modalities to form output summaries. Unlike the unimodal summarization, the multimodal summarization task explicitly leverages cross-modal…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Bo He , Jun Wang , Jielin Qiu , Trung Bui , Abhinav Shrivastava , Zhaowen Wang

Recently, Multi-modal Named Entity Recognition (MNER) has attracted a lot of attention. Most of the work utilizes image information through region-level visual representations obtained from a pretrained object detector and relies on an…

Computation and Language · Computer Science 2022-09-21 Xinyu Wang , Min Gui , Yong Jiang , Zixia Jia , Nguyen Bach , Tao Wang , Zhongqiang Huang , Fei Huang , Kewei Tu
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