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Cognitive and social traits of individuals are reflected in language use. Moreover, individuals who are prone to spread fake news online often share common traits. Building on these ideas, we introduce a model that creates representations…

Computation and Language · Computer Science 2020-11-17 Marco Del Tredici , Raquel Fernández

Implementing fine-grained emotion control is crucial for emotion generation tasks because it enhances the expressive capability of the generative model, allowing it to accurately and comprehensively capture and express various nuanced…

Computer Vision and Pattern Recognition · Computer Science 2024-02-05 Guanwen Feng , Haoran Cheng , Yunan Li , Zhiyuan Ma , Chaoneng Li , Zhihao Qian , Qiguang Miao , Chi-Man Pun

Adversarial attacks involve adding perturbations to the source image to cause misclassification by the target model, which demonstrates the potential of attacking face recognition models. Existing adversarial face image generation methods…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Decheng Liu , Xijun Wang , Chunlei Peng , Nannan Wang , Ruiming Hu , Xinbo Gao

Deep neural networks have been shown to be vulnerable to backdoor attacks, which could be easily introduced to the training set prior to model training. Recent work has focused on investigating backdoor attacks on natural images or toy…

Cryptography and Security · Computer Science 2021-01-05 Munachiso Nwadike , Takumi Miyawaki , Esha Sarkar , Michail Maniatakos , Farah Shamout

Image generation has recently seen tremendous advances, with diffusion models allowing to synthesize convincing images for a large variety of text prompts. In this article, we propose DiffEdit, a method to take advantage of text-conditioned…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Guillaume Couairon , Jakob Verbeek , Holger Schwenk , Matthieu Cord

The increasingly pervasive facial recognition (FR) systems raise serious concerns about personal privacy, especially for billions of users who have publicly shared their photos on social media. Several attempts have been made to protect…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Jiang Liu , Chun Pong Lau , Zhongliang Guo , Yuxiang Guo , Zhaoyang Wang , Rama Chellappa

In human-centric content generation, the pre-trained text-to-image models struggle to produce user-wanted portrait images, which retain the identity of individuals while exhibiting diverse expressions. This paper introduces our efforts…

Computer Vision and Pattern Recognition · Computer Science 2024-04-09 Renshuai Liu , Bowen Ma , Wei Zhang , Zhipeng Hu , Changjie Fan , Tangjie Lv , Yu Ding , Xuan Cheng

Human use language not just to convey information but also to express their inner feelings and mental states. In this work, we adapt the state-of-the-art language generation models to generate affective (emotional) text. We posit a model…

Computation and Language · Computer Science 2020-11-10 Ishika Singh , Ahsan Barkati , Tushar Goswamy , Ashutosh Modi

Recently, the multimedia community has witnessed the rise of diffusion models trained on large-scale multi-modal data for visual content creation, particularly in the field of text-to-image generation. In this paper, we propose a new task…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Jingwen Chen , Yingwei Pan , Ting Yao , Tao Mei

Backdoor attacks are rapidly emerging threats to deep neural networks (DNNs). In the backdoor attack scenario, attackers usually implant the backdoor into the target model by manipulating the training dataset or training process. Then, the…

Cryptography and Security · Computer Science 2022-05-09 Nan Zhong , Zhenxing Qian , Xinpeng Zhang

Recent studies show that diffusion models (DMs) are vulnerable to backdoor attacks. Existing backdoor attacks impose unconcealed triggers (e.g., a gray box and eyeglasses) that contain evident patterns, rendering remarkable attack effects…

Cryptography and Security · Computer Science 2025-03-03 Yuning Han , Bingyin Zhao , Rui Chu , Feng Luo , Biplab Sikdar , Yingjie Lao

With recent advancements in diffusion models, users can generate high-quality images by writing text prompts in natural language. However, generating images with desired details requires proper prompts, and it is often unclear how a model…

Computer Vision and Pattern Recognition · Computer Science 2023-07-07 Zijie J. Wang , Evan Montoya , David Munechika , Haoyang Yang , Benjamin Hoover , Duen Horng Chau

Emojis are widely used in online social networks to express emotions, attitudes, and opinions. As emotional-oriented characters, emojis can be modeled as important features of emotions towards the recipient or subject for sentiment…

Computation and Language · Computer Science 2022-05-24 Xiaowei Yuan , Jingyuan Hu , Xiaodan Zhang , Honglei Lv , Hao Liu

A picture is worth a thousand words, thus, it is crucial for conversational agents to understand, perceive, and effectively respond with pictures. However, we find that directly employing conventional image generation techniques is…

Computation and Language · Computer Science 2024-02-09 Xiaowen Sun , Jiazhan Feng , Yuxuan Wang , Yuxuan Lai , Xingyu Shen , Dongyan Zhao

Emotional talking-head generation has emerged as a pivotal research area at the intersection of computer vision and multimodal artificial intelligence, with its core value lying in enhancing human-computer interaction through immersive and…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Hanlei Shi , Leyuan Qu , Yu Liu , Di Gao , Yuhua Zheng , Taihao Li

While diffusion models have shown great potential in portrait generation, generating expressive, coherent, and controllable cinematic portrait videos remains a significant challenge. Existing intermediate signals for portrait generation,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Junyi Wang , Yudong Guo , Boyang Guo , Shengming Yang , Juyong Zhang

Recent advances in text-to-image diffusion models enable photorealistic image generation, but they also risk producing malicious content, such as NSFW images. To mitigate risk, concept erasure methods are studied to facilitate the model to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Ruidong Chen , Honglin Guo , Lanjun Wang , Chenyu Zhang , Weizhi Nie , An-An Liu

Diffusion models are a powerful class of generative models that produce images and other content from user prompts, but they are computationally intensive. To mitigate this cost, recent academic and industry work has adopted approximate…

Cryptography and Security · Computer Science 2026-05-26 Desen Sun , Shuncheng Jie , Sihang Liu

Human speech goes beyond the mere transfer of information; it is a profound exchange of emotions and a connection between individuals. While Text-to-Speech (TTS) models have made huge progress, they still face challenges in controlling the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-14 Guanrou Yang , Chen Yang , Qian Chen , Ziyang Ma , Wenxi Chen , Wen Wang , Tianrui Wang , Yifan Yang , Zhikang Niu , Wenrui Liu , Fan Yu , Zhihao Du , Zhifu Gao , ShiLiang Zhang , Xie Chen

Large language models (LLMs) have exhibited remarkable versatility and adaptability, while their widespread adoption across various applications also raises critical safety concerns. This paper focuses on the impact of backdoored LLMs.…

Computation and Language · Computer Science 2025-09-03 Jiyang Qiu , Xinbei Ma , Zhuosheng Zhang , Hai Zhao , Yun Li , Qianren Wang