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Aspect-based sentiment analysis produces a list of aspect terms and their corresponding sentiments for a natural language sentence. This task is usually done in a pipeline manner, with aspect term extraction performed first, followed by…

Computation and Language · Computer Science 2019-06-18 Ruidan He , Wee Sun Lee , Hwee Tou Ng , Daniel Dahlmeier

With the widespread use of machine learning, concerns over its security and reliability have become prevalent. As such, many have developed defenses to harden neural networks against adversarial examples, imperceptibly perturbed inputs that…

Machine Learning · Computer Science 2022-05-09 Pratik Vaishnavi , Kevin Eykholt , Amir Rahmati

In this work, we propose a novel Generative Adversarial Stacked Autoencoder that learns to map facial expressions, with up to plus or minus 60 degrees, to an illumination invariant facial representation of 0 degrees. We accomplish this by…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Ariel Ruiz-Garcia , Vasile Palade , Mark Elshaw , Mariette Awad

Recently, appearance-based gaze estimation has been attracting attention in computer vision, and remarkable improvements have been achieved using various deep learning techniques. Despite such progress, most methods aim to infer gaze…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Suneung Kim , Woo-Jeoung Nam , Seong-Whan Lee

Supervised learning-based adversarial attack detection methods rely on a large number of labeled data and suffer significant performance degradation when applying the trained model to new domains. In this paper, we propose a self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Yi Li , Plamen Angelov , Neeraj Suri

Many leading self-supervised methods for unsupervised representation learning, in particular those for embedding image features, are built on variants of the instance discrimination task, whose optimization is known to be prone to…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Daniel Shalam , Simon Korman

Facial attractiveness enhancement has been an interesting application in Computer Vision and Graphics over these years. It aims to generate a more attractive face via manipulations on image and geometry structure while preserving face…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Jingwu He , Chuan Wang , Yang Zhang , Jie Guo , Yanwen Guo

Iris-based biometric systems are vulnerable to presentation attacks (PAs), where adversaries present physical artifacts (e.g., printed iris images, textured contact lenses) to defeat the system. This has led to the development of various…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Debasmita Pal , Redwan Sony , Arun Ross

Face images are subject to many different factors of variation, especially in unconstrained in-the-wild scenarios. For most tasks involving such images, e.g. expression recognition from video streams, having enough labeled data is…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Marah Halawa , Manuel Wöllhaf , Eduardo Vellasques , Urko Sánchez Sanz , Olaf Hellwich

Aspect-based sentiment analysis (ABSA) identifies sentiment information related to specific aspects and provides deeper market insights to businesses and organizations. With the emergence of large language models (LMs), recent studies have…

Computation and Language · Computer Science 2024-05-30 Guangmin Zheng , Jin Wang , Liang-Chih Yu , Xuejie Zhang

Face age progression, which aims to predict the future looks, is important for various applications and has been received considerable attentions. Existing methods and datasets are limited in exploring the effects of occupations which may…

Computer Vision and Pattern Recognition · Computer Science 2017-12-04 Siyu Zhou , Weiqiang Zhao , Jiashi Feng , Hanjiang Lai , Yan Pan , Jian Yin , Shuicheng Yan

An Adversarial System to attack and an Authorship Attribution System (AAS) to defend itself against the attacks are analyzed. Defending a system against attacks from an adversarial machine learner can be done by randomly switching between…

Cryptography and Security · Computer Science 2019-11-27 Alison Jenkins

Aspect-Based Sentiment Analysis (ABSA) deals with the extraction of sentiments and their targets. Collecting labeled data for this task in order to help neural networks generalize better can be laborious and time-consuming. As an…

Machine Learning · Computer Science 2020-10-26 Akbar Karimi , Leonardo Rossi , Andrea Prati

Adversarial attacks on face recognition systems (FRSs) pose serious security and privacy threats, especially when these systems are used for identity verification. In this paper, we propose a novel method for generating adversarial…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Sunpill Kim , Seunghun Paik , Chanwoo Hwang , Minsu Kim , Jae Hong Seo

The proliferation of facial recognition systems presents major privacy risks, driving the need for effective countermeasures. Current adversarial techniques apply generalized methods rather than adapting to individual facial…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Paweł Jakub Borsukiewicz , Jordan Samhi , Jacques Klein , Tegawendé F. Bissyandé

Handwritten Word Recognition and Spotting is a challenging field dealing with handwritten text possessing irregular and complex shapes. The design of deep neural network models makes it necessary to extend training datasets in order to…

Computer Vision and Pattern Recognition · Computer Science 2019-02-26 Ayan Kumar Bhunia , Abhirup Das , Ankan Kumar Bhunia , Perla Sai Raj Kishore , Partha Pratim Roy

Modern information retrieval systems, including web search, ads placement, and recommender systems, typically rely on learning from user feedback. Click models, which study how users interact with a ranked list of items, provide a useful…

Information Retrieval · Computer Science 2021-04-20 Xinyi Dai , Jianghao Lin , Weinan Zhang , Shuai Li , Weiwen Liu , Ruiming Tang , Xiuqiang He , Jianye Hao , Jun Wang , Yong Yu

Simulating facial appearance change following bony movement is a critical step in orthognathic surgical planning for patients with jaw deformities. Conventional biomechanics-based methods such as the finite-element method (FEM) are labor…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Xi Fang , Daeseung Kim , Xuanang Xu , Tianshu Kuang , Hannah H. Deng , Joshua C. Barber , Nathan Lampen , Jaime Gateno , Michael A. K. Liebschner , James J. Xia , Pingkun Yan

We present a novel approach to point set registration which is based on one-shot adversarial learning. The idea of the algorithm is inspired by recent successes of generative adversarial networks. Treating the point clouds as…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Sergei Divakov , Ivan Oseledets

Face recognition performance based on deep learning heavily relies on large-scale training data, which is often difficult to acquire in practical applications. To address this challenge, this paper proposes a GAN-based data augmentation…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Zhongwen Li , Zongwei Li , Xiaoqi Li