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Lecture videos are an increasingly important learning resource for higher education. However, the challenge of quickly finding the content of interest in a lecture video is an important limitation of this format. This paper introduces…

Computer Vision and Pattern Recognition · Computer Science 2020-06-05 Mohammad Rajiur Rahman , Jaspal Subhlok , Shishir Shah

With the exponentially increasing volume of online data, searching and finding required information have become an extensive and time-consuming task. Recommender Systems as a subclass of information retrieval and decision support systems by…

Information Retrieval · Computer Science 2023-04-20 Ali Fallahi RahmatAbadi , Javad Mohammadzadeh

Multiple datasets containing different types of features may be available for a given task. For instance, users' profiles can be used to group users for recommendation systems. In addition, a model can also use users' historical behaviors…

Machine Learning · Computer Science 2016-05-10 Weixiang Shao , Xiaoxiao Shi , Philip S. Yu

We introduce Generative Lecture, a concept that makes existing lecture videos interactive through generative AI and AI clone instructors. By leveraging interactive avatars powered by HeyGen, ElevenLabs, and GPT-5, we embed an AI instructor…

Human-Computer Interaction · Computer Science 2025-12-30 Hye-Young Jo , Ada Yi Zhao , Xiaoan Liu , Ryo Suzuki

Video search results and suggested videos on web sites are represented with a video thumbnail, which is manually selected by the video up-loader among three randomly generated ones (e.g., YouTube). In contrast, we present a grounded…

Multimedia · Computer Science 2018-04-17 Konstantinos Chorianopoulos

Recently,there has been a lot of interest in building compact models for video classification which have a small memory footprint (<1 GB). While these models are compact, they typically operate by repeated application of a small weight…

Computer Vision and Pattern Recognition · Computer Science 2019-02-28 Shweta Bhardwaj , Mukundhan Srinivasan , Mitesh M. Khapra

The large size of nowadays' online multimedia databases makes retrieving their content a difficult and time-consuming task. Users of online sound collections typically submit search queries that express a broad intent, often making the…

Information Retrieval · Computer Science 2020-06-16 Xavier Favory , Frederic Font , Xavier Serra

Recognizing and localizing student confusion from video is an important yet challenging problem in educational AI. Existing confusion datasets suffer from noisy labels, coarse temporal annotations, and limited expert validation, which…

Computer Vision and Pattern Recognition · Computer Science 2026-03-19 Lu Dong , Xiao Wang , Mark Frank , Srirangaraj Setlur , Venu Govindaraju , Ifeoma Nwogu

The abundance of information in web applications make recommendation essential for users as well as applications. Despite the effectiveness of existing recommender systems, we find two major limitations that reduce their overall…

Information Retrieval · Computer Science 2020-09-01 Dilruk Perera , Roger Zimmermann

The success of contrastive language-image pretraining (CLIP) relies on the supervision from the pairing between images and captions, which tends to be noisy in web-crawled data. We present Mixture of Data Experts (MoDE) and learn a system…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Jiawei Ma , Po-Yao Huang , Saining Xie , Shang-Wen Li , Luke Zettlemoyer , Shih-Fu Chang , Wen-Tau Yih , Hu Xu

Nowadays, online video platforms mostly recommend related videos by analyzing user-driven data such as viewing patterns, rather than the content of the videos. However, content is more important than any other element when videos aim to…

Social and Information Networks · Computer Science 2018-10-31 Jaehoon Oh , Injung Lee , Yeon Seonwoo , Simin Sung , Ilbong Kwon , Jae-Gil Lee

Deepfake videos, produced through advanced artificial intelligence methods now a days, pose a new challenge to the truthfulness of the digital media. As Deepfake becomes more convincing day by day, detecting them requires advanced methods…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Mahmudul Hasan , Sadia Ruhama , Sabrina Tajnim Sithi , Chowdhury Mohammad Mutamir Samit , Oindrila Saha

Person clustering with multi-modal clues, including faces, bodies, and voices, is critical for various tasks, such as movie parsing and identity-based movie editing. Related methods such as multi-view clustering mainly project multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2023-08-02 Kaijian Liu , Shixiang Tang , Ziyue Li , Zhishuai Li , Lei Bai , Feng Zhu , Rui Zhao

Videos are a commonly-used type of content in learning during Web search. Many e-learning platforms provide quality content, but sometimes educational videos are long and cover many topics. Humans are good in extracting important sections…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Junaid Ahmed Ghauri , Sherzod Hakimov , Ralph Ewerth

Recently, large-scale pre-training methods like CLIP have made great progress in multi-modal research such as text-video retrieval. In CLIP, transformers are vital for modeling complex multi-modal relations. However, in the vision…

Computer Vision and Pattern Recognition · Computer Science 2022-05-03 Shuai Zhao , Linchao Zhu , Xiaohan Wang , Yi Yang

Deep learning-based recommendation models are used pervasively and broadly, for example, to recommend movies, products, or other information most relevant to users, in order to enhance the user experience. Among various application domains…

Machine Learning · Computer Science 2020-04-15 Carole-Jean Wu , Robin Burke , Ed H. Chi , Joseph Konstan , Julian McAuley , Yves Raimond , Hao Zhang

Despite significant advances in clustering methods in recent years, the outcome of clustering of a natural image dataset is still unsatisfactory due to two important drawbacks. Firstly, clustering of images needs a good feature…

Computer Vision and Pattern Recognition · Computer Science 2019-01-23 Dipanjan Das , Ratul Ghosh , Brojeshwar Bhowmick

Subspace clustering is a growing field of unsupervised learning that has gained much popularity in the computer vision community. Applications can be found in areas such as motion segmentation and face clustering. It assumes that data…

Machine Learning · Statistics 2019-11-12 Hankui Peng , Nicos G. Pavlidis

Action segmentation refers to inferring boundaries of semantically consistent visual concepts in videos and is an important requirement for many video understanding tasks. For this and other video understanding tasks, supervised approaches…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 M. Saquib Sarfraz , Naila Murray , Vivek Sharma , Ali Diba , Luc Van Gool , Rainer Stiefelhagen

In unsupervised learning, identifying an effective clustering algorithm for a given tabular dataset remains a fundamental challenge. We introduce ClustRecNet, a novel end-to-end deep learning framework that recommends a suitable clustering…