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Event detection (ED) is aimed to identify the key trigger words in unstructured text and predict the event types accordingly. Traditional ED models are too data-hungry to accommodate real applications with scarce labeled data. Besides,…

Computation and Language · Computer Science 2023-05-17 Siyuan Wang , Jianming Zheng , Xuejun Hu , Fei Cai , Chengyu Song , Xueshan Luo

This work defines a new framework for performance evaluation of polyphonic sound event detection (SED) systems, which overcomes the limitations of the conventional collar-based event decisions, event F-scores and event error rates. The…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-17 Cagdas Bilen , Giacomo Ferroni , Francesco Tuveri , Juan Azcarreta , Sacha Krstulovic

Incorporating auxiliary modalities such as images into event detection models has attracted increasing interest over the last few years. The complexity of natural language in describing situations has motivated researchers to leverage the…

Computation and Language · Computer Science 2023-06-06 Farhad Moghimifar , Fatemeh Shiri , Van Nguyen , Reza Haffari , Yuan-Fang Li

Semantic Shift Detection (SSD) is the task of identifying, interpreting, and assessing the possible change over time in the meanings of a target word. Traditionally, SSD has been addressed by linguists and social scientists through manual…

Computation and Language · Computer Science 2024-06-12 Stefano Montanelli , Francesco Periti

Speech emotion recognition is a vital contributor to the next generation of human-computer interaction (HCI). However, current existing small-scale databases have limited the development of related research. In this paper, we present LSSED,…

Sound · Computer Science 2021-02-04 Weiquan Fan , Xiangmin Xu , Xiaofen Xing , Weidong Chen , Dongyan Huang

Among prerequisites for a synthetic agent to interact with dynamic scenes, the ability to identify independently moving objects is specifically important. From an application perspective, nevertheless, standard cameras may deteriorate…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Xiuyuan Lu , Yi Zhou , Shaojie Shen

Event mentions in text correspond to real-world events of varying degrees of granularity. The task of subevent detection aims to resolve this granularity issue, recognizing the membership of multi-granular events in event complexes. Since…

Computation and Language · Computer Science 2021-09-15 Haoyu Wang , Hongming Zhang , Muhao Chen , Dan Roth

A good joint training framework is very helpful to improve the performances of weakly supervised audio tagging (AT) and acoustic event detection (AED) simultaneously. In this study, we propose three methods to improve the best…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-15 Yunhao Liang , Yanhua Long , Yijie Li , Jiaen Liang , Yuping Wang

Handling anomalies is a critical preprocessing step in multivariate time series prediction. However, existing approaches that separate anomaly preprocessing from model training for multivariate time series prediction encounter significant…

Machine Learning · Computer Science 2025-01-15 Yuanyuan Liang , Tianhao Zhang , Tingyu Xie

Anomaly detection and localization (ADL) is critical for maintaining reliability and availability in cloud systems. Recent ADL developments focus on metric and log data, leaving event data unexplored. To address this gap, we propose…

Machine Learning · Computer Science 2026-05-05 Luan Pham , Victor Nicolet , Joey Dodds , Hui Guan , Daniel Kroening

Landslides are among the most common natural disasters globally, posing significant threats to human society. Deep learning (DL) has proven to be an effective method for rapidly generating landslide inventories in large-scale disaster…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Guanting Liu , Yi Wang , Xi Chen , Baoyu Du , Penglei Li , Yuan Wu , Zhice Fang

Automated interpretation of seismic images using deep learning methods is challenging because of the limited availability of training data. Few-shot learning is a suitable learning paradigm in such scenarios due to its ability to adapt to a…

Computer Vision and Pattern Recognition · Computer Science 2025-01-29 Surojit Saha , Ross Whitaker

As a decisive part in the success of Mobility-as-a-Service (MaaS), spatio-temporal predictive modeling for crowd movements is a challenging task particularly considering scenarios where societal events drive mobility behavior deviated from…

Machine Learning · Computer Science 2021-12-17 Zhaonan Wang , Renhe Jiang , Hao Xue , Flora D. Salim , Xuan Song , Ryosuke Shibasaki

Anomaly detection plays an important role in modern data-driven security applications, such as detecting suspicious access to a socket from a process. In many cases, such events can be described as a collection of categorical values that…

Machine Learning · Computer Science 2016-08-29 Ting Chen , Lu-An Tang , Yizhou Sun , Zhengzhang Chen , Kai Zhang

The increasing demand for autonomous machines in construction environments necessitates the development of robust object detection algorithms that can perform effectively across various weather and environmental conditions. This paper…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Maghsood Salimi , Mohammad Loni , Sara Afshar , Antonio Cicchetti , Marjan Sirjani

Anomaly detection is widely used in a broad range of domains from cybersecurity to manufacturing, finance, and so on. Deep learning based anomaly detection has recently drawn much attention because of its superior capability of recognizing…

Machine Learning · Computer Science 2023-05-23 Ronit Das , Tie Luo

Rapid post-earthquake damage assessment is crucial for rescue and resource planning. Still, existing remote sensing methods depend on costly aerial images, expert labeling, and produce only binary damage maps for early-stage evaluation.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-17 Huili Huang , Chengeng Liu , Danrong Zhang , Shail Patel , Anastasiya Masalava , Sagar Sadak , Parisa Babolhavaeji , WeiHong Low , Max Mahdi Roozbahani , J. David Frost

Object detection with event cameras benefits from the sensor's low latency and high dynamic range. However, it is costly to fully label event streams for supervised training due to their high temporal resolution. To reduce this cost, we…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Ziyi Wu , Mathias Gehrig , Qing Lyu , Xudong Liu , Igor Gilitschenski

With the proliferation of imaging sensors, the volume of multi-modal imagery far exceeds the ability of human analysts to adequately consume and exploit it. Full motion video (FMV) possesses the extra challenge of containing large amounts…

Computer Vision and Pattern Recognition · Computer Science 2020-01-17 Marc Bosch , Joseph Nassar , Benjamin Ortiz , Brendan Lammers , David Lindenbaum , John Wahl , Robert Mangum , Margaret Smith

Event cameras are bio-inspired sensors that respond to per-pixel brightness changes in the form of asynchronous and sparse "events". Recently, pattern recognition algorithms, such as learning-based methods, have made significant progress…

Computer Vision and Pattern Recognition · Computer Science 2020-07-20 Nico Messikommer , Daniel Gehrig , Antonio Loquercio , Davide Scaramuzza