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We study the design of resilient and reliable communication networks in which a signal can be transferred only up to a limited distance before its quality falls below an acceptable threshold. When excessive signal degradation occurs,…

Machine Learning · Computer Science 2026-02-13 Mohammad Khosravi , Setareh Maghsudi

Retrieving procedure-oriented evidence from materials science papers is difficult because key synthesis details are often scattered across long, context-heavy documents and are not well captured by paragraph-only dense retrieval. We present…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Zhuoyu Wu , Wenhui Ou , Pei-Sze Tan , Wenqi Fang , Sailaja Rajanala , Raphaël C. -W. Phan

Most GAN(Generative Adversarial Network)-based approaches towards high-fidelity waveform generation heavily rely on discriminators to improve their performance. However, GAN methods introduce much uncertainty into the generation process and…

Sound · Computer Science 2022-03-22 Shengyuan Xu , Wenxiao Zhao , Jing Guo

We study the problem of outlier correspondence pruning for non-rigid point cloud registration. In rigid registration, spatial consistency has been a commonly used criterion to discriminate outliers from inliers. It measures the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-20 Zheng Qin , Hao Yu , Changjian Wang , Yuxing Peng , Kai Xu

Recent advances in text-to-image generation have produced strong single-shot models, yet no individual system reliably executes the long, compositional prompts typical of creative workflows. We introduce Image-POSER, a reflective…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hossein Mohebbi , Mohammed Abdulrahman , Yanting Miao , Pascal Poupart , Suraj Kothawade

Recent advances in large language models (LLMs) have demonstrated impressive capabilities in code-related tasks, such as code generation and automated program repair. Despite their promising performance, most existing approaches for code…

Software Engineering · Computer Science 2025-09-03 Yicong Zhao , Shisong Chen , Jiacheng Zhang , Zhixu Li

Recent dense retrievers increasingly leverage the robust text understanding capabilities of Large Language Models (LLMs), encoding queries and documents into a shared embedding space for effective retrieval. However, most existing methods…

Information Retrieval · Computer Science 2025-10-07 Yifan Ji , Zhipeng Xu , Zhenghao Liu , Yukun Yan , Shi Yu , Yishan Li , Zhiyuan Liu , Yu Gu , Ge Yu , Maosong Sun

In this paper, we focus on methods to reduce the size and improve the quality of the prompt context required for question-answering systems. Attempts to increase the number of retrieved chunked documents and thereby enlarge the context…

Information Retrieval · Computer Science 2024-07-02 Vitaly Bulgakov

Retrieval-augmented generation (RAG) has emerged as a pivotal method for expanding the knowledge of large language models. To handle complex queries more effectively, researchers developed Adaptive-RAG (A-RAG) to enhance the generated…

Artificial Intelligence · Computer Science 2025-05-27 Jie Ou , Jinyu Guo , Shuaihong Jiang , Zhaokun Wang , Libo Qin , Shunyu Yao , Wenhong Tian

Personalized image generation is crucial for improving the user experience, as it renders reference images into preferred ones according to user visual preferences. Although effective, existing methods face two main issues. First, existing…

Retrieval-Augmented Generation (RAG) enhances large language models (LLMs) by integrating up-to-date external knowledge, yet real-world web environments present unique challenges. These limitations manifest as two key challenges: pervasive…

Information Retrieval · Computer Science 2026-03-24 Yuqin Dai , Shuo Yang , Guoqing Wang , Yong Deng , Zhanwei Zhang , Jun Yin , Pengyu Zeng , Zhenzhe Ying , Changhua Meng , Can Yi , Yuchen Zhou , Weiqiang Wang , Shuai Lu

This paper presents a fast methodology, called ROBOUT, to identify outliers in a response variable conditional on a set of linearly related predictors, retrieved from a large granular dataset. ROBOUT is shown to be effective and…

Methodology · Statistics 2021-04-27 Matteo Farnè , Angelos Vouldis

Correspondence-based point cloud registration (PCR) plays a key role in robotics and computer vision. However, challenges like sensor noises, object occlusions, and descriptor limitations inevitably result in numerous outliers. RANSAC…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Pengcheng Shi , Shaocheng Yan , Yilin Xiao , Xinyi Liu , Yongjun Zhang , Jiayuan Li

Rendering realistic images from 3D reconstruction is an essential task of many Computer Vision and Robotics pipelines, notably for mixed-reality applications as well as training autonomous agents in simulated environments. However, the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Lukas Bösiger , Mihai Dusmanu , Marc Pollefeys , Zuria Bauer

In recent years, there have been significant improvements in various forms of image outlier detection. However, outlier detection performance under adversarial settings lags far behind that in standard settings. This is due to the lack of…

Noisy, partially overlapping data and the need for real-time processing pose major challenges for rigid registration. Considering that feature-based matching can handle large transformation differences but suffers from limited accuracy,…

Robotics · Computer Science 2026-05-18 Jiayi Li , Yuxin Yao , Qiuhang Lu , Juyong Zhang

Retrieval-Augmented Generation (RAG) systems leverage Large Language Models (LLMs) to generate accurate and reliable responses that are grounded in retrieved context. However, LLMs often generate inconsistent outputs for semantically…

Computation and Language · Computer Science 2025-10-17 Xujun Peng , Anoop Kumar , Jingyu Wu , Parker Glenn , Daben Liu

The paradigm of retrieval-augmented generated (RAG) helps mitigate hallucinations of large language models (LLMs). However, RAG also introduces biases contained within the retrieved documents. These biases can be amplified in scenarios…

Computation and Language · Computer Science 2025-06-24 Bryan Li , Fiona Luo , Samar Haider , Adwait Agashe , Tammy Li , Runqi Liu , Muqing Miao , Shriya Ramakrishnan , Yuan Yuan , Chris Callison-Burch

Reliable image correspondences form the foundation of vision-based spatial perception, enabling recovery of 3D structure and camera poses. However, unconstrained feature matching across domains such as aerial, indoor, and outdoor scenes…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Zhimin Shao , Abhay Yadav , Rama Chellappa , Cheng Peng

Retrieval-augmented language models can better adapt to changes in world state and incorporate long-tail knowledge. However, most existing methods retrieve only short contiguous chunks from a retrieval corpus, limiting holistic…

Computation and Language · Computer Science 2024-02-01 Parth Sarthi , Salman Abdullah , Aditi Tuli , Shubh Khanna , Anna Goldie , Christopher D. Manning