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Cost-Sensitive Online Classification has drawn extensive attention in recent years, where the main approach is to directly online optimize two well-known cost-sensitive metrics: (i) weighted sum of sensitivity and specificity; (ii) weighted…

机器学习 · 计算机科学 2019-11-19 Peilin Zhao , Yifan Zhang , Min Wu , Steven C. H. Hoi , Mingkui Tan , Junzhou Huang

Object detection has made impressive progress in recent years with the help of deep learning. However, state-of-the-art algorithms are both computation and memory intensive. Though many lightweight networks are developed for a trade-off…

计算机视觉与模式识别 · 计算机科学 2019-10-22 Fanrong Li , Zitao Mo , Peisong Wang , Zejian Liu , Jiayun Zhang , Gang Li , Qinghao Hu , Xiangyu He , Cong Leng , Yang Zhang , Jian Cheng

Streaming 360{\deg} video demands high bandwidth and low latency, and poses significant challenges to Internet Service Providers (ISPs) and Mobile Network Operators (MNOs). The identification of 360{\deg} video traffic can therefore…

多媒体 · 计算机科学 2021-05-11 Chamara Kattadige , Aravindh Raman , Kanchana Thilakarathna , Andra Lutu , Diego Perino

Most existing approaches to video instance segmentation comprise multiple modules that are heuristically combined to produce the final output. Formulating a purely learning-based method instead, which models both the temporal aspect as well…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Joakim Johnander , Emil Brissman , Martin Danelljan , Michael Felsberg

Visual content has become the primary source of information, as evident in the billions of images and videos, shared and uploaded on the Internet every single day. This has led to an increase in alterations in images and videos to make them…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Prabhat Kumar , Mayank Vatsa , Richa Singh

This paper proposes and evaluates a novel algorithm for streaming video over HTTP. The problem is formulated as a non-convex optimization problem which is constrained by the predicted available bandwidth, chunk deadlines, available video…

网络与互联网体系结构 · 计算机科学 2019-01-23 Anis Elgabli , Vaneet Aggarwal

In this paper, we propose a fast deep learning method for object saliency detection using convolutional neural networks. In our approach, we use a gradient descent method to iteratively modify the input images based on the pixel-wise…

计算机视觉与模式识别 · 计算机科学 2016-02-02 Hengyue Pan , Hui Jiang

Semi-supervised video object segmentation has made significant progress on real and challenging videos in recent years. The current paradigm for segmentation methods and benchmark datasets is to segment objects in video provided a single…

计算机视觉与模式识别 · 计算机科学 2020-11-25 Brent A. Griffin , Jason J. Corso

Video forgery detection is becoming an important issue in recent years, because modern editing software provide powerful and easy-to-use tools to manipulate videos. In this paper we propose to perform detection by means of deep learning,…

计算机视觉与模式识别 · 计算机科学 2017-08-30 Dario D'Avino , Davide Cozzolino , Giovanni Poggi , Luisa Verdoliva

We present techniques for speeding up the test-time evaluation of large convolutional networks, designed for object recognition tasks. These models deliver impressive accuracy but each image evaluation requires millions of floating point…

计算机视觉与模式识别 · 计算机科学 2024-03-15 Remi Denton , Wojciech Zaremba , Joan Bruna , Yann LeCun , Rob Fergus

Querying the content of images, video, and other non-textual data sources requires expensive content extraction methods. Modern extraction techniques are based on deep convolutional neural networks (CNNs) and can classify objects within…

数据库 · 计算机科学 2019-04-23 Michael R. Anderson , Michael Cafarella , German Ros , Thomas F. Wenisch

Video anomaly detection is to determine whether there are any abnormal events, behaviors or objects in a given video, which enables effective and intelligent public safety management. As video anomaly labeling is both time-consuming and…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Yang Wang , Jiaogen Zhou , Jihong Guan

Applications that generate huge amounts of data in the form of fast streams are becoming increasingly prevalent, being therefore necessary to learn in an online manner. These conditions usually impose memory and processing time…

神经与进化计算 · 计算机科学 2019-08-22 Jesus L. Lobo , Javier Del Ser , Albert Bifet , Nikola Kasabov

We have made significant progress towards building foundational video diffusion models. As these models are trained using large-scale unsupervised data, it has become crucial to adapt these models to specific downstream tasks. Adapting…

计算机视觉与模式识别 · 计算机科学 2024-07-12 Mihir Prabhudesai , Russell Mendonca , Zheyang Qin , Katerina Fragkiadaki , Deepak Pathak

This paper addresses the challenge of automated violence detection in video frames captured by surveillance cameras, specifically focusing on classifying scenes as "fight" or "non-fight." This task is critical for enhancing unmanned…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Gourang Pathak , Abhay Kumar , Sannidhya Rawat , Shikha Gupta

This paper proposes a method for visually explaining the decision-making process of video recognition networks with a temporal extension of occlusion sensitivity analysis, called Adaptive Occlusion Sensitivity Analysis (AOSA). The key idea…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Tomoki Uchiyama , Naoya Sogi , Satoshi Iizuka , Koichiro Niinuma , Kazuhiro Fukui

Video Anomaly Detection (VAD) identifies unusual activities in video streams, a key technology with broad applications ranging from surveillance to healthcare. Tackling VAD in real-life settings poses significant challenges due to the…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Shanle Yao , Ghazal Alinezhad Noghre , Armin Danesh Pazho , Hamed Tabkhi

Current video object detection (VOD) models often encounter issues with over-aggregation due to redundant aggregation strategies, which perform feature aggregation on every frame. This results in suboptimal performance and increased…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Bingqing Zhang , Sen Wang , Yifan Liu , Brano Kusy , Xue Li , Jiajun Liu

Video content classification is an important research content in computer vision, which is widely used in many fields, such as image and video retrieval, computer vision. This paper presents a model that is a combination of Convolutional…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Pradyumn Patil , Vishwajeet Pawar , Yashraj Pawar , Shruti Pisal

Model selection in contextual bandits is an important complementary problem to regret minimization with respect to a fixed model class. We consider the simplest non-trivial instance of model-selection: distinguishing a simple multi-armed…

机器学习 · 计算机科学 2022-07-01 Vidya Muthukumar , Akshay Krishnamurthy