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Visual similarities discovery (VSD) is an important task with broad e-commerce applications. Given an image of a certain object, the goal of VSD is to retrieve images of different objects with high perceptual visual similarity. Although…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Oren Barkan , Tal Reiss , Jonathan Weill , Ori Katz , Roy Hirsch , Itzik Malkiel , Noam Koenigstein

Human actions are typically of combinatorial structures or patterns, i.e., subjects, objects, plus spatio-temporal interactions in between. Discovering such structures is therefore a rewarding way to reason about the dynamics of…

Computer Vision and Pattern Recognition · Computer Science 2022-01-12 Dong Li , Zhaofan Qiu , Yingwei Pan , Ting Yao , Houqiang Li , Tao Mei

Phishing, a continuously growing cyber threat, aims to obtain innocent users' credentials by deceiving them via presenting fake web pages which mimic their legitimate targets. To date, various attempts have been carried out in order to…

Cryptography and Security · Computer Science 2019-05-21 Firat Coskun Dalgic , Ahmet Selman Bozkir , Murat Aydos

Social event detection in a static image is a very challenging problem and it's very useful for internet of things applications including automatic photo organization, ads recommender system, or image captioning. Several publications show…

Computer Vision and Pattern Recognition · Computer Science 2016-12-14 Reza Fuad Rachmadi , Keiichi Uchimura , Gou Koutaki

Optimized scene representation is an important characteristic of a framework for detecting abnormalities on live videos. One of the challenges for detecting abnormalities in live videos is real-time detection of objects in a non-parametric…

Computer Vision and Pattern Recognition · Computer Science 2018-06-12 Santhosh Kelathodi Kumaran , Debi Prosad Dogra , Partha Pratim Roy

The eye-tracking video saliency prediction (VSP) task and video salient object detection (VSOD) task both focus on the most attractive objects in video and show the result in the form of predictive heatmaps and pixel-level saliency masks,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Qi Qin , Runmin Cong , Gen Zhan , Yiting Liao , Sam Kwong

We propose a new "Unbiased through Textual Description (UTD)" video benchmark based on unbiased subsets of existing video classification and retrieval datasets to enable a more robust assessment of video understanding capabilities. Namely,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Nina Shvetsova , Arsha Nagrani , Bernt Schiele , Hilde Kuehne , Christian Rupprecht

The objective of this paper is self-supervised learning of video object segmentation. We develop a unified framework which simultaneously models cross-frame dense correspondence for locally discriminative feature learning and embeds…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Liulei Li , Wenguan Wang , Tianfei Zhou , Jianwu Li , Yi Yang

E-commerce is the fastest-growing segment of the economy. Online reviews play a crucial role in helping consumers evaluate and compare products and services. As a result, fake reviews (opinion spam) are becoming more prevalent and…

Machine Learning · Computer Science 2022-05-27 Kiril Danilchenko , Michael Segal , Dan Vilenchik

Image spam emails are often used to evade text-based spam filters that detect spam emails with their frequently used keywords. In this paper, we propose a new image spam email detection tool called DeepCapture using a convolutional neural…

Machine Learning · Computer Science 2020-06-17 Bedeuro Kim , Sharif Abuadbba , Hyoungshick Kim

Suspicious behavior is likely to threaten security, assets, life, or freedom. This behavior has no particular pattern, which complicates the tasks to detect it and define it. Even for human observers, it is complex to spot suspicious…

Computer Vision and Pattern Recognition · Computer Science 2021-02-24 Guillermo A. Martínez-Mascorro , José C. Ortiz-Bayliss , Hugo Terashima-Marín

The last-generation video conferencing software allows users to utilize a virtual background to conceal their personal environment due to privacy concerns, especially in official meetings with other employers. On the other hand, users maybe…

Cryptography and Security · Computer Science 2021-06-30 Mauro Conti , Simone Milani , Ehsan Nowroozi , Gabriele Orazi

This paper proposes a human activity recognition method which is based on features learned from 3D video data without incorporating domain knowledge. The experiments on data collected by RGBD cameras produce results outperforming other…

Computer Vision and Pattern Recognition · Computer Science 2015-08-11 Ngu Nguyen

Monitoring and analyzing stereotypical behaviours is important for early intervention and care taking in Autism Spectrum Disorder (ASD). This paper focuses on automatically detecting stereotypical behaviours with computer vision techniques.…

Computer Vision and Pattern Recognition · Computer Science 2023-05-15 Jiaqi Gao , Xinyang Jiang , Yuqing Yang , Dongsheng Li , Lili Qiu

Video co-segmentation refers to the task of jointly segmenting common objects appearing in a given group of videos. In practice, high-dimensional data such as videos can be conceptually thought as being drawn from a union of subspaces…

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Junlin Yao , Frank Nielsen

In this paper, we propose a deep learning approach for smartphone user identification based on analyzing motion signals recorded by the accelerometer and the gyroscope, during a single tap gesture performed by the user on the screen. We…

Machine Learning · Computer Science 2020-03-24 Cezara Benegui , Radu Tudor Ionescu

Sharing multimodal information (typically images, videos or text) in Social Network Sites (SNS) occupies a relevant part of our time. The particular way how users expose themselves in SNS can provide useful information to infer human…

Computer Vision and Pattern Recognition · Computer Science 2019-05-16 Mohammad Mahdi Dehshibi , Gerard Pons , Bita Baiani , David Masip

Unsupervised Video Object Segmentation (UVOS) aims at discovering objects and tracking them through videos. For accurate UVOS, we observe if one can locate precise segment proposals on key frames, subsequent processes are much simpler.…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Jialin Yuan , Jay Patravali , Hung Nguyen , Chanho Kim , Li Fuxin

Harnessing human movements to command an Unmanned Aerial Vehicle (UAV) holds the potential to revolutionize their deployment, rendering it more intuitive and user-centric. In this research, we introduce a novel methodology adept at…

Robotics · Computer Science 2024-08-20 Akash Chaudhary , Tiago Nascimento , Martin Saska

The identification of spam messages on social networks is a very challenging task. Social media sites like Twitter \& Facebook attracts a lot of users and companies to advertise and attract users of personal gains. These advertisements most…

Social and Information Networks · Computer Science 2020-10-27 Prakamya Mishra