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Audio scene classification, the problem of predicting class labels of audio scenes, has drawn lots of attention during the last several years. However, it remains challenging and falls short of accuracy and efficiency. Recently,…

计算机视觉与模式识别 · 计算机科学 2018-05-21 Kele Xu , Dawei Feng , Haibo Mi , Boqing Zhu , Dezhi Wang , Lilun Zhang , Hengxing Cai , Shuwen Liu

The development of audio event recognition systems require labeled training data, which are generally hard to obtain. One promising source of recordings of audio events is the large amount of multimedia data on the web. In particular, if…

声音 · 计算机科学 2022-10-04 Anurag Kumar , Bhiksha Raj

In frame-based vision, object detection faces substantial performance degradation under challenging conditions due to the limited sensing capability of conventional cameras. Event cameras output sparse and asynchronous events, providing a…

计算机视觉与模式识别 · 计算机科学 2024-11-01 Hu Cao , Zehua Zhang , Yan Xia , Xinyi Li , Jiahao Xia , Guang Chen , Alois Knoll

Feature similarity matching, which transfers the information of the reference frame to the query frame, is a key component in semi-supervised video object segmentation. If surjective matching is adopted, background distractors can easily…

计算机视觉与模式识别 · 计算机科学 2023-02-02 Suhwan Cho , Woo Jin Kim , MyeongAh Cho , Seunghoon Lee , Minhyeok Lee , Chaewon Park , Sangyoun Lee

Sound Event Localization and Detection refers to the problem of identifying the presence of independent or temporally-overlapped sound sources, correctly identifying to which sound class it belongs, estimating their spatial directions while…

音频与语音处理 · 电气工程与系统科学 2024-01-02 Francesca Ronchini , Daniel Arteaga , Andrés Pérez-López

Deep learning has enabled various Internet of Things (IoT) applications. Still, designing models with high accuracy and computational efficiency remains a significant challenge, especially in real-time video processing applications. Such…

计算机视觉与模式识别 · 计算机科学 2023-05-12 Hadjer Benmeziane , Halima Bouzidi , Hamza Ouarnoughi , Ozcan Ozturk , Smail Niar

Supervised object detection and semantic segmentation require object or even pixel level annotations. When there exist image level labels only, it is challenging for weakly supervised algorithms to achieve accurate predictions. The accuracy…

计算机视觉与模式识别 · 计算机科学 2018-03-06 Weifeng Ge , Sibei Yang , Yizhou Yu

In many applications, training machine learning models involves using large amounts of human-annotated data. Obtaining precise labels for the data is expensive. Instead, training with weak supervision provides a low-cost alternative. We…

机器学习 · 计算机科学 2022-02-09 Chidubem Arachie , Bert Huang

Clouds significantly affect the quality of optical satellite images, which seriously limits their precise application. Recently, deep learning has been widely applied to cloud detection and has achieved satisfactory results. However, the…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Shaocong Zhu , Zhiwei Li , Xinghua Li , Huanfeng Shen

Sound event localization frameworks based on deep neural networks have shown increased robustness with respect to reverberation and noise in comparison to classical parametric approaches. In particular, recurrent architectures that…

This paper proposes an active learning system for sound event detection (SED). It aims at maximizing the accuracy of a learned SED model with limited annotation effort. The proposed system analyzes an initially unlabeled audio dataset, from…

音频与语音处理 · 电气工程与系统科学 2020-09-10 Shuyang Zhao , Toni Heittola , Tuomas Virtanen

Bias in predictive machine learning (ML) models is a fundamental challenge due to the skewed or unfair outcomes produced by biased models. Existing mitigation strategies rely on either post-hoc corrections or rigid constraints. However,…

机器学习 · 计算机科学 2025-07-01 Yash Vardhan Tomar

Most existing crowd counting methods require object location-level annotation, i.e., placing a dot at the center of an object. While being simpler than the bounding-box or pixel-level annotation, obtaining this annotation is still…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Yinjie Lei , Yan Liu , Pingping Zhang , Lingqiao Liu

There are two sub-tasks implied in the weakly-supervised SED: audio tagging and event boundary detection. Current methods which combine multi-task learning with SED requires annotations both for these two sub-tasks. Since there are only…

音频与语音处理 · 电气工程与系统科学 2020-02-25 Yuxin Huang , Xiangdong Wang , Liwei Lin , Hong Liu , Yueliang Qian

Weakly Labelled learning has garnered lot of attention in recent years due to its potential to scale Sound Event Detection (SED) and is formulated as Multiple Instance Learning (MIL) problem. This paper proposes a Multi-Task Learning (MTL)…

音频与语音处理 · 电气工程与系统科学 2020-11-02 Soham Deshmukh , Bhiksha Raj , Rita Singh

Given a training dataset composed of images and corresponding category labels, deep convolutional neural networks show a strong ability in mining discriminative parts for image classification. However, deep convolutional neural networks…

计算机视觉与模式识别 · 计算机科学 2019-03-08 Weifeng Ge , Xiangru Lin , Yizhou Yu

Humans do not acquire perceptual abilities in the way we train machines. While machine learning algorithms typically operate on large collections of randomly-chosen, explicitly-labeled examples, human acquisition relies more heavily on…

Semantic segmentation has been continuously investigated in the last ten years, and majority of the established technologies are based on supervised models. In recent years, image-level weakly supervised semantic segmentation (WSSS),…

计算机视觉与模式识别 · 计算机科学 2021-08-04 Xiangrong Zhang , Zelin Peng , Peng Zhu , Tianyang Zhang , Chen Li , Huiyu Zhou , Licheng Jiao

Due to the high cost of annotating accurate pixel-level labels, semi-supervised learning has emerged as a promising approach for cloud detection. In this paper, we propose CloudMatch, a semi-supervised framework that effectively leverages…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Jiayi Zhao , Changlu Chen , Jingsheng Li , Tianxiang Xue , Kun Zhan

Tracking Any Point (TAP) has emerged as a fundamental tool for video understanding. Current approaches adapt Vision Foundation Models (VFMs) like DINOv2 via offline finetuning or test-time optimization. However, these VFMs rely on static…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Qiangqiang Wu , Tianyu Yang , Bo Fang , Jia Wan , Matias Di Martino , Guillermo Sapiro , Antoni B. Chan