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Sound event detection (SED) and acoustic scene classification (ASC) are major tasks in environmental sound analysis. Considering that sound events and scenes are closely related to each other, some works have addressed joint analyses of…

Event Causality Identification (ECI) aims to identify causal relations between events in unstructured texts. This is a very challenging task, because causal relations are usually expressed by implicit associations between events. Existing…

Computation and Language · Computer Science 2023-05-23 Zhilei Hu , Zixuan Li , Xiaolong Jin , Long Bai , Saiping Guan , Jiafeng Guo , Xueqi Cheng

Video anomaly detection (VAD) has long been studied as a crucial problem in public security and crime prevention. In recent years, weakly-supervised VAD (WVAD) have attracted considerable attention due to their easy annotation process and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Satoshi Hashimoto , Tatsuya Konishi , Tomoya Kaichi , Kazunori Matsumoto , Mori Kurokawa

Event Causality Identification (ECI) aims to detect whether there exists a causal relation between two events in a document. Existing studies adopt a kind of identifying after learning paradigm, where events' representations are first…

Computation and Language · Computer Science 2024-06-03 Cheng Liu , Wei Xiang , Bang Wang

Event cameras offer high temporal resolution and power efficiency, making them well-suited for edge AI applications. However, their high event rates present challenges for data transmission and processing. Subsampling methods provide a…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Hesam Araghi , Jan van Gemert , Nergis Tomen

Wearable audio devices with active noise control (ANC) enhance listening comfort but often at the expense of situational awareness. However, this auditory isolation may mask crucial environmental cues, posing significant safety risks. To…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-09 Jun-Wei Yeow , Ee-Leng Tan , Santi Peksi , Zhen-Ting Ong , Woon-Seng Gan

Sound event localization and detection (SELD) consists of two subtasks, which are sound event detection and direction-of-arrival estimation. While sound event detection mainly relies on time-frequency patterns to distinguish different sound…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-07 Thi Ngoc Tho Nguyen , Karn N. Watcharasupat , Ngoc Khanh Nguyen , Douglas L. Jones , Woon-Seng Gan

Prior image-text matching methods have shown remarkable performance on many benchmark datasets, but most of them overlook the bias in the dataset, which exists in intra-modal and inter-modal, and tend to learn the spurious correlations that…

Computer Vision and Pattern Recognition · Computer Science 2024-08-23 Wenhui Li , Xinqi Su , Dan Song , Lanjun Wang , Kun Zhang , An-An Liu

Source separation (SS) aims to separate individual sources from an audio recording. Sound event detection (SED) aims to detect sound events from an audio recording. We propose a joint separation-classification (JSC) model trained only on…

Sound · Computer Science 2019-12-10 Qiuqiang Kong , Yong Xu , Wenwu Wang , Mark D. Plumbley

Learning meaningful frame-wise features on a partially labeled dataset is crucial to semi-supervised sound event detection. Prior works either maintain consistency on frame-level predictions or seek feature-level similarity among…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-18 Yiming Li , Xiangdong Wang , Hong Liu , Rui Tao , Long Yan , Kazushige Ouchi

Weakly Supervised Semantic Segmentation (WSSS), which relies only on image-level labels, has attracted significant attention for its cost-effectiveness and scalability. Existing methods mainly enhance inter-class distinctions and employ…

Computer Vision and Pattern Recognition · Computer Science 2026-01-22 Yiyang Fu , Hui Li , Wangyu Wu

Weakly supervised semantic segmentation (WSSS) aims at learning a semantic segmentation model with only image-level tags. Despite intensive research on deep learning approaches over a decade, there is still a significant performance gap…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Qi Lai , Chi-Man Vong

Event Causality Identification (ECI) aims at determining the existence of a causal relation between two events. Although recent prompt learning-based approaches have shown promising improvements on the ECI task, their performance are often…

Information Retrieval · Computer Science 2024-09-30 Chao Liang , Wei Xiang , Bang Wang

Event Causality Identification (ECI) requires models to determine whether a given pair of events in a context exhibits a causal relationship. While Large Language Models (LLMs) have demonstrated strong performance across various NLP tasks,…

Computation and Language · Computer Science 2026-05-06 Zhifeng Hao , Zhongjie Chen , Junhao Lu , Shengyin Yu , Guimin Hu , Keli Zhang , Ruichu Cai , Boyan Xu

Multimedia event detection has been receiving increasing attention in recent years. Besides recognizing an event, the discovery of evidences (which is refered to as "recounting") is also crucial for user to better understand the searching…

Computer Vision and Pattern Recognition · Computer Science 2017-10-24 Mengyi Liu , Lu Jiang , Shiguang Shan , Alexander G. Hauptmann

Event Causality Identification (ECI) focuses on extracting causal relations between events in texts. Existing methods for ECI primarily rely on causal features and external knowledge. However, these approaches fall short in two dimensions:…

Computation and Language · Computer Science 2024-10-03 Haoran Li , Qiang Gao , Hongmei Wu , Li Huang

This paper considers a semi-supervised learning framework for weakly labeled polyphonic sound event detection problems for the DCASE 2019 challenge's task4 by combining both the tri-training and adversarial learning. The goal of the task4…

Sound · Computer Science 2019-10-16 Hyoungwoo Park , Sungrack Yun , Jungyun Eum , Janghoon Cho , Kyuwoong Hwang

Weakly Supervised Object Localization (WSOL), which aims to localize objects by only using image-level labels, has attracted much attention because of its low annotation cost in real applications. Recent studies leverage the advantage of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Haotian Bai , Ruimao Zhang , Jiong Wang , Xiang Wan

This paper shows that characterizing co-occurrence between events is an important but non-trivial and neglected aspect of discovering potential causal relationships in multimedia event streams. First an introduction to the notion of event…

Multimedia · Computer Science 2016-03-31 Laleh Jalali , Ramesh Jain

Some cognitive research has discovered that humans accomplish event segmentation as a side effect of event anticipation. Inspired by this discovery, we propose a simple yet effective end-to-end self-supervised learning framework for event…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Xiao Wang , Jingen Liu , Tao Mei , Jiebo Luo