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The recent trend in action recognition is towards larger datasets, an increasing number of action classes and larger visual vocabularies. State-of-the-art human action classification in challenging video data is currently based on a…

计算机视觉与模式识别 · 计算机科学 2014-05-30 Michael Sapienza , Fabio Cuzzolin , Philip H. S. Torr

Automatically generating a natural language sentence to describe the content of an input video is a very challenging problem. It is an essential multimodal task in which auditory and visual contents are equally important. Although audio…

计算机视觉与模式识别 · 计算机科学 2018-12-10 Yapeng Tian , Chenxiao Guan , Justin Goodman , Marc Moore , Chenliang Xu

Self-Supervised Video Hashing (SSVH) compresses videos into hash codes for efficient indexing and retrieval using unlabeled training videos. Existing approaches rely on random frame sampling to learn video features and treat all frames…

计算机视觉与模式识别 · 计算机科学 2025-04-07 Niu Lian , Jun Li , Jinpeng Wang , Ruisheng Luo , Yaowei Wang , Shu-Tao Xia , Bin Chen

Despite the remarkable progress in recent years, detecting objects in a new context remains a challenging task. Detectors learned from a public dataset can only work with a fixed list of categories, while training from scratch usually…

计算机视觉与模式识别 · 计算机科学 2017-08-01 Kai Chen , Hang Song , Chen Change Loy , Dahua Lin

We present a supervised learning approach for automatic extraction of keyphrases from single documents. Our solution uses simple to compute statistical and positional features of candidate phrases and does not rely on any external knowledge…

信息检索 · 计算机科学 2024-04-12 Sriraghavendra Ramaswamy

Automatic extraction of product attributes from their textual descriptions is essential for online shopper experience. One inherent challenge of this task is the emerging nature of e-commerce products -- we see new types of products with…

计算与语言 · 计算机科学 2022-05-02 Xinyang Zhang , Chenwei Zhang , Xian Li , Xin Luna Dong , Jingbo Shang , Christos Faloutsos , Jiawei Han

We present a novel framework for finding complex activities matching user-described queries in cluttered surveillance videos. The wide diversity of queries coupled with unavailability of annotated activity data limits our ability to train…

多媒体 · 计算机科学 2018-08-23 Yuting Chen , Joseph Wang , Yannan Bai , Gregory Castañón , Venkatesh Saligrama

The goal of video moment retrieval and highlight detection is to identify specific segments and highlights based on a given text query. With the rapid growth of video content and the overlap between these tasks, recent works have addressed…

计算机视觉与模式识别 · 计算机科学 2025-01-07 Sung Jin Um , Dongjin Kim , Sangmin Lee , Jung Uk Kim

To learn semantic attributes, existing methods typically train one discriminative model for each word in a vocabulary of nameable properties. However, this "one model per word" assumption is problematic: while a word might have a precise…

计算机视觉与模式识别 · 计算机科学 2015-05-18 Adriana Kovashka , Kristen Grauman

The increasing abundance of video data enables users to search for events of interest, e.g., emergency incidents. Meanwhile, it raises new concerns, such as the need for preserving privacy. Existing approaches to video search require either…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Yunhao Yang , Jean-Raphaël Gaglione , Sandeep Chinchali , Ufuk Topcu

Video description is the automatic generation of natural language sentences that describe the contents of a given video. It has applications in human-robot interaction, helping the visually impaired and video subtitling. The past few years…

计算机视觉与模式识别 · 计算机科学 2020-03-04 Nayyer Aafaq , Ajmal Mian , Wei Liu , Syed Zulqarnain Gilani , Mubarak Shah

Current surveillance and control systems still require human supervision and intervention. This work presents a novel automatic handgun detection system in videos appropriate for both, surveillance and control purposes. We reformulate this…

计算机视觉与模式识别 · 计算机科学 2017-02-20 Roberto Olmos , Siham Tabik , Francisco Herrera

We address an essential problem in computer vision, that of unsupervised object segmentation in video, where a main object of interest in a video sequence should be automatically separated from its background. An efficient solution to this…

计算机视觉与模式识别 · 计算机科学 2017-04-20 Emanuela Haller , Marius Leordeanu

Job transitions and upskilling are common actions taken by many industry working professionals throughout their career. With the current rapidly changing job landscape where requirements are constantly changing and industry sectors are…

机器学习 · 计算机科学 2019-07-26 Alan Chern , Phuong Hoang , Madhav Sigdel , Janani Balaji , Mohammed Korayem

Video action analysis is a foundational technology within the realm of intelligent video comprehension, particularly concerning its application in Internet of Things(IoT). However, existing methodologies overlook feature semantics in…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Guiqin Wang , Peng Zhao , Cong Zhao , Jing Huang , Siyan Guo , Shusen Yang

Domain dependence and annotation subjectivity pose challenges for supervised keyword extraction. Based on the premises that second-order keyness patterns are existent at the community level and learnable from annotated keyword extraction…

信息检索 · 计算机科学 2024-09-30 Dongmei Zhou , Xuri Tang

Automated audio captioning is a cross-modal translation task for describing the content of audio clips with natural language sentences. This task has attracted increasing attention and substantial progress has been made in recent years.…

音频与语音处理 · 电气工程与系统科学 2024-07-02 Xinhao Mei , Xubo Liu , Jianyuan Sun , Mark D. Plumbley , Wenwu Wang

Over the last decade, the use of Deep Learning in many applications produced results that are comparable to and in some cases surpassing human expert performance. The application domains include diagnosing diseases, finance, agriculture,…

计算机视觉与模式识别 · 计算机科学 2021-04-09 Soheyla Amirian , Khaled Rasheed , Thiab R. Taha , Hamid R. Arabnia

Keyphrases are useful for a variety of purposes, including summarizing, indexing, labeling, categorizing, clustering, highlighting, browsing, and searching. The task of automatic keyphrase extraction is to select keyphrases from within the…

机器学习 · 计算机科学 2007-05-23 Peter D. Turney

A new line of research for feature selection based on neural networks has recently emerged. Despite its superiority to classical methods, it requires many training iterations to converge and detect informative features. The computational…

机器学习 · 计算机科学 2022-11-29 Ghada Sokar , Zahra Atashgahi , Mykola Pechenizkiy , Decebal Constantin Mocanu