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Given a query composed of a reference image and a relative caption, the Composed Image Retrieval goal is to retrieve images visually similar to the reference one that integrates the modifications expressed by the caption. Given that recent…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Alberto Baldrati , Marco Bertini , Tiberio Uricchio , Alberto del Bimbo

Generative retrieval (GR) reformulates the Information Retrieval (IR) task as the generation of document identifiers (docIDs). Despite its promise, existing GR models exhibit poor generalization to newly added documents, often failing to…

Information Retrieval · Computer Science 2026-05-12 Zhen Zhang , Zihan Wang , Xinyu Ma , Shuaiqiang Wang , Dawei Yin , Xin Xin , Pengjie Ren , Maarten de Rijke , Zhaochun Ren

Continuous optimization is an important problem in many areas of AI, including vision, robotics, probabilistic inference, and machine learning. Unfortunately, most real-world optimization problems are nonconvex, causing standard convex…

Artificial Intelligence · Computer Science 2016-11-10 Abram L. Friesen , Pedro Domingos

Differentiable Search Index (DSI) utilizes pre-trained language models to perform indexing and document retrieval via end-to-end learning without relying on external indexes. However, DSI requires full re-training to index new documents,…

Information Retrieval · Computer Science 2025-07-01 Tuan-Luc Huynh , Thuy-Trang Vu , Weiqing Wang , Yinwei Wei , Trung Le , Dragan Gasevic , Yuan-Fang Li , Thanh-Toan Do

Generalization has long been a central challenge in real-world image restoration. While recent diffusion-based restoration methods, which leverage generative priors from text-to-image models, have made progress in recovering more realistic…

Computer Vision and Pattern Recognition · Computer Science 2024-12-09 Haoze Sun , Wenbo Li , Jiayue Liu , Kaiwen Zhou , Yongqiang Chen , Yong Guo , Yanwei Li , Renjing Pei , Long Peng , Yujiu Yang

Diffusion models have emerged as the leading approach for text-to-image generation. However, their iterative sampling process, which gradually morphs random noise into coherent images, introduces significant latency that limits their…

Computer Vision and Pattern Recognition · Computer Science 2026-02-16 Peijie Qiu , Hariharan Ramshankar , Arnau Ramisa , René Vidal , Amit Kumar K C , Vamsi Salaka , Rahul Bhagat

In the Query Focused Multi-Document Summarization (QF-MDS) task, a set of documents and a query are given where the goal is to generate a summary from these documents based on the given query. However, one major challenge for this task is…

Computation and Language · Computer Science 2020-11-04 Md Tahmid Rahman Laskar , Enamul Hoque , Jimmy Xiangji Huang

Research on text simplification has primarily focused on lexical and sentence-level changes. Long document-level simplification (DS) is still relatively unexplored. Large Language Models (LLMs), like ChatGPT, have excelled in many natural…

Computation and Language · Computer Science 2025-01-08 Dengzhao Fang , Jipeng Qiang , Yi Zhu , Yunhao Yuan , Wei Li , Yan Liu

Image restoration is very crucial computer vision task. This paper describes two novel methods for the restoration of old degraded handwritten documents using deep neural network. In addition to that, a small-scale dataset of 26 heritage…

Computer Vision and Pattern Recognition · Computer Science 2020-01-27 Mayank Wadhwani , Debapriya Kundu , Deepayan Chakraborty , Bhabatosh Chanda

Multi-task learning is a popular machine learning approach that enables simultaneous learning of multiple related tasks, improving algorithmic efficiency and effectiveness. In the hard parameter sharing approach, an encoder shared through…

Machine Learning · Statistics 2024-09-26 Seokwon Shin , Hyungrok Do , Youngdoo Son

Understanding complex multimodal documents remains challenging due to their structural inconsistencies and limited training data availability. We introduce \textit{DocsRay}, a training-free document understanding system that integrates…

Machine Learning · Computer Science 2025-08-01 Hyeon Seong Jeong , Sangwoo Jo , Byeong Hyun Yoon , Yoonseok Heo , Haedong Jeong , Taehoon Kim

In document image rectification, there exist rich geometric constraints between the distorted image and the ground truth one. However, such geometric constraints are largely ignored in existing advanced solutions, which limits the…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Hao Feng , Wengang Zhou , Jiajun Deng , Yuechen Wang , Houqiang Li

In the practical application of restoring low-resolution gray-scale images, we generally need to run three separate processes of image colorization, super-resolution, and dows-sampling operation for the target device. However, this pipeline…

Computer Vision and Pattern Recognition · Computer Science 2022-01-13 Jiangning Zhang , Chao Xu , Jian Li , Yue Han , Yabiao Wang , Ying Tai , Yong Liu

Image restoration aims to enhance low quality images, producing high quality images that exhibit natural visual characteristics and fine semantic attributes. Recently, the diffusion model has emerged as a powerful technique for image…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Jiangtong Tan , Feng Zhao

Deep learning (DL) has advanced the field of dense prediction, while gradually dissolving the inherent barriers between different tasks. However, most existing works focus on designing architectures and constructing visual cues only for the…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Youwei Pang , Xiaoqi Zhao , Lihe Zhang , Huchuan Lu

Document denoising is considered one of the most challenging tasks in computer vision. There exist millions of documents that are still to be digitized, but problems like document degradation due to natural and man-made factors make this…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Yashowardhan Shinde , Kishore Kulkarni , Sachin Kuberkar

Acquiring structured data from domain-specific, image-based documents such as scanned reports is crucial for many downstream tasks but remains challenging due to document variability. Many of these documents exist as images rather than as…

Software Engineering · Computer Science 2025-05-07 Qiang Sun , Sirui Li , Tingting Bi , Du Huynh , Mark Reynolds , Yuanyi Luo , Wei Liu

This paper summarizes our contributions to the document-grounded dialog tasks at the 9th and 10th Dialog System Technology Challenges (DSTC9 and DSTC10). In both iterations the task consists of three subtasks: first detect whether the…

Computation and Language · Computer Science 2023-04-17 David Thulke , Nico Daheim , Christian Dugast , Hermann Ney

Image restoration problems are typical ill-posed problems where the regularization term plays an important role. The regularization term learned via generative approaches is easy to transfer to various image restoration, but offers inferior…

Computer Vision and Pattern Recognition · Computer Science 2018-07-18 Peng Qiao , Yong Dou , Yunjin Chen , Wensen Feng

Diffusion models equipped with language models demonstrate excellent controllability in image generation tasks, allowing image processing to adhere to human instructions. However, the lack of diverse instruction-following data hampers the…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Yongsheng Yu , Ziyun Zeng , Hang Hua , Jianlong Fu , Jiebo Luo