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Mapping natural language instructions to programs that computers can process is a fundamental challenge. Existing approaches focus on likelihood-based training or using reinforcement learning to fine-tune models based on a single reward. In…

计算与语言 · 计算机科学 2021-10-05 Sayan Ghosh , Shashank Srivastava

Recent works have demonstrated that using reinforcement learning (RL) with multiple quality rewards can improve the quality of generated images in text-to-image (T2I) generation. However, manually adjusting reward weights poses challenges…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Seung Hyun Lee , Yinxiao Li , Junjie Ke , Innfarn Yoo , Han Zhang , Jiahui Yu , Qifei Wang , Fei Deng , Glenn Entis , Junfeng He , Gang Li , Sangpil Kim , Irfan Essa , Feng Yang

Open-vocabulary object detection with vision-language models (VLMs) such as Grounding DINO suffers from performance degradation under test-time distribution shifts, primarily due to semantic misalignment between text embeddings and shifted…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Lihua Zhou , Mao Ye , Xiatian Zhu , Nianxin Li , Changyi Ma , Shuaifeng Li , Yitong Qin , Hongbin Liu , Jiebo Luo , Zhen Lei

Autoregressive image modeling relies on visual tokenizers to compress images into compact latent representations. We design an end-to-end training pipeline that jointly optimizes reconstruction and generation, enabling direct supervision…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Wenda Chu , Bingliang Zhang , Jiaqi Han , Yizhuo Li , Linjie Yang , Yisong Yue , Qiushan Guo

Recent methods for reinforcement learning from images use auxiliary tasks to learn image features that are used by the agent's policy or Q-function. In particular, methods based on contrastive learning that induce linearity of the latent…

机器学习 · 计算机科学 2022-03-04 Bang You , Oleg Arenz , Youping Chen , Jan Peters

This study presents a novel model for invertible sentence embeddings using a residual recurrent network trained on an unsupervised encoding task. Rather than the probabilistic outputs common to neural machine translation models, our…

计算与语言 · 计算机科学 2023-04-07 Jeremy Wilkerson

Image-based single-modality compression learning approaches have demonstrated exceptionally powerful encoding and decoding capabilities in the past few years , but suffer from blur and severe semantics loss at extremely low bitrates. To…

图像与视频处理 · 电气工程与系统科学 2023-04-27 Xuhao Jiang , Weimin Tan , Tian Tan , Bo Yan , Liquan Shen

Although contextualized embeddings generated from large-scale pre-trained models perform well in many tasks, traditional static embeddings (e.g., Skip-gram, Word2Vec) still play an important role in low-resource and lightweight settings due…

计算与语言 · 计算机科学 2023-03-24 Jiangbin Zheng , Yile Wang , Ge Wang , Jun Xia , Yufei Huang , Guojiang Zhao , Yue Zhang , Stan Z. Li

Inspired by the great success of unsupervised learning in Computer Vision and Natural Language Processing, the Reinforcement Learning community has recently started to focus more on unsupervised discovery of skills. Most current approaches,…

机器学习 · 计算机科学 2022-10-13 Robert Meier , Asier Mujika

Text-to-image diffusion models have recently emerged at the forefront of image generation, powered by very large-scale unsupervised or weakly supervised text-to-image training datasets. Due to their unsupervised training, controlling their…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Mihir Prabhudesai , Anirudh Goyal , Deepak Pathak , Katerina Fragkiadaki

The two main impediments to continual learning are catastrophic forgetting and memory limitations on the storage of data. To cope with these challenges, we propose a novel, cognitively-inspired approach which trains autoencoders with Neural…

计算机视觉与模式识别 · 计算机科学 2021-05-04 Ali Ayub , Alan R. Wagner

Deep neural networks have emerged as a powerful technique for learning representations from user-item interaction data in collaborative filtering (CF) for recommender systems. However, many existing methods heavily rely on unique user and…

信息检索 · 计算机科学 2025-10-21 Xubin Ren , Chao Huang

Compositional text-to-image (T2I) generation requires a model to honour multiple sub-prompts that describe distinct image regions. Recent work shows that the \emph{starting noise} of a diffusion model carries significant semantic…

计算机视觉与模式识别 · 计算机科学 2026-04-29 Hao Li

Cross-modal retrieval between visual data and natural language description remains a long-standing challenge in multimedia. While recent image-text retrieval methods offer great promise by learning deep representations aligned across…

Reinforcement learning (RL) has emerged as a promising paradigm for enhancing image editing and text-to-image (T2I) generation. However, current reward models, which act as critics during RL, often suffer from hallucinations and assign…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Xiangyu Zhao , Peiyuan Zhang , Junming Lin , Tianhao Liang , Yuchen Duan , Shengyuan Ding , Changyao Tian , Yuhang Zang , Junchi Yan , Xue Yang

Reward guidance, also known as posterior sampling, is a popular method for test-time adaptation and post-training in continuous diffusion models. In this paper, we study reward guidance for discrete diffusion language models; now, one…

机器学习 · 计算机科学 2026-05-14 Atula Tejaswi , Litu Rout , Constantine Caramanis , Sanjay Shakkottai , Sujay Sanghavi

Image steganography can hide information in a host image and obtain a stego image that is perceptually indistinguishable from the original one. This technique has tremendous potential in scenarios like copyright protection, information…

计算机视觉与模式识别 · 计算机科学 2024-11-26 Huayuan Ye , Shenzhuo Zhang , Shiqi Jiang , Jing Liao , Shuhang Gu , Dejun Zheng , Changbo Wang , Chenhui Li

Unsupervised sentence embedding aims to obtain the most appropriate embedding for a sentence to reflect its semantic. Contrastive learning has been attracting developing attention. For a sentence, current models utilize diverse data…

计算与语言 · 计算机科学 2022-03-03 Hao Wang , Yangguang Li , Zhen Huang , Yong Dou , Lingpeng Kong , Jing Shao

Knowledge graphs represent information as structured triples and serve as the backbone for a wide range of applications, including question answering, link prediction, and recommendation systems. A prominent line of research for exploring…

机器学习 · 计算机科学 2025-10-15 Rita T. Sousa , Heiko Paulheim

Unsupervised text embedding methods, such as Skip-gram and Paragraph Vector, have been attracting increasing attention due to their simplicity, scalability, and effectiveness. However, comparing to sophisticated deep learning architectures…

计算与语言 · 计算机科学 2015-08-04 Jian Tang , Meng Qu , Qiaozhu Mei