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Recent disentangled representation learning (DRL) methods heavily rely on factor specific strategies-either learning objectives for attributes or model architectures for objects-to embed inductive biases. Such divergent approaches result in…

机器学习 · 计算机科学 2025-11-12 Whie Jung , Dong Hoon Lee , Seunghoon Hong

Dense regression is a widely used approach in computer vision for tasks such as image super-resolution, enhancement, depth estimation, etc. However, the high cost of annotation and labeling makes it challenging to achieve accurate results.…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Vikrant Rangnekar , Uddeshya Upadhyay , Zeynep Akata , Biplab Banerjee

Multi-domain learning (MDL) refers to simultaneously constructing a model or a set of models on datasets collected from different domains. Conventional approaches emphasize domain-shared information extraction and domain-private information…

机器学习 · 计算机科学 2023-07-31 Rui He , Shengcai Liu , Jiahao Wu , Shan He , Ke Tang

To improve the performance of the dual-encoder retriever, one effective approach is knowledge distillation from the cross-encoder ranker. Existing works construct the candidate passages following the supervised learning setting where a…

计算与语言 · 计算机科学 2024-06-07 Chongyang Tao , Chang Liu , Tao Shen , Can Xu , Xiubo Geng , Binxing Jiao , Daxin Jiang

Circumstellar disk images have highlighted a wide variety of morphological features. Recovering disk images from high-contrast angular differential imaging (ADI) sequences are however generally affected by geometrical biases, leading to…

天体物理仪器与方法 · 物理学 2023-11-08 Sandrine Juillard , Valentin Christiaens , Olivier Absil

While dense retrieval models, which embed queries and documents into a shared low-dimensional space, have gained widespread popularity, they were shown to exhibit important theoretical limitations and considerably lag behind traditional…

信息检索 · 计算机科学 2026-04-09 Adrian Bracher , Svitlana Vakulenko

In recent years, several unsupervised, "contrastive" learning algorithms in vision have been shown to learn representations that perform remarkably well on transfer tasks. We show that this family of algorithms maximizes a lower bound on…

机器学习 · 计算机科学 2020-06-08 Mike Wu , Chengxu Zhuang , Milan Mosse , Daniel Yamins , Noah Goodman

Dense retrieval has achieved impressive advances in first-stage retrieval from a large-scale document collection, which is built on bi-encoder architecture to produce single vector representation of query and document. However, a document…

计算与语言 · 计算机科学 2022-03-17 Shunyu Zhang , Yaobo Liang , Ming Gong , Daxin Jiang , Nan Duan

Federated learning (FL) can be used to improve data privacy and efficiency in magnetic resonance (MR) image reconstruction by enabling multiple institutions to collaborate without needing to aggregate local data. However, the domain shift…

图像与视频处理 · 电气工程与系统科学 2022-08-24 Chun-Mei Feng , Yunlu Yan , Shanshan Wang , Yong Xu , Ling Shao , Huazhu Fu

With various face presentation attacks emerging continually, face anti-spoofing (FAS) approaches based on domain generalization (DG) have drawn growing attention. Existing DG-based FAS approaches always capture the domain-invariant features…

计算机视觉与模式识别 · 计算机科学 2022-11-24 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Ran Yi , Shouhong Ding , Lizhuang Ma

In this work, we focus on the problem of retrieving relevant arguments for a query claim covering diverse aspects. State-of-the-art methods rely on explicit mappings between claims and premises, and thus are unable to utilize large…

信息检索 · 计算机科学 2021-03-18 Michael Fromm , Max Berrendorf , Sandra Obermeier , Thomas Seidl , Evgeniy Faerman

Low-dimensional embeddings are widely used as visual summaries of high-dimensional data and to enable downstream scientific discoveries. Yet, popular nonlinear dimension reduction methods, such as t-SNE and UMAP, are often selected based on…

机器学习 · 统计学 2026-05-29 Irene Chang , Tarek M. Zikry , Genevera I. Allen

Dense retrieval models usually adopt vectors from the last hidden layer of the document encoder to represent a document, which is in contrast to the fact that representations in different layers of a pre-trained language model usually…

信息检索 · 计算机科学 2025-09-30 Zhongbin Xie , Thomas Lukasiewicz

In medical image analysis, regression plays a critical role in computer-aided diagnosis. It enables quantitative measurements such as age prediction from structural imaging, cardiac function quantification, and molecular measurement from…

机器学习 · 计算机科学 2025-03-25 Yilei Wu , Zijian Dong , Chongyao Chen , Wangchunshu Zhou , Juan Helen Zhou

Dimensionality reduction techniques play an essential role in data analytics, signal processing and machine learning. Dimensionality reduction is usually performed in a preprocessing stage that is separate from subsequent data analysis,…

机器学习 · 计算机科学 2016-12-21 Bo Yang , Xiao Fu , Nicholas D. Sidiropoulos

Nowadays on E-commerce platforms, products are presented to the customers with multiple modalities. These multiple modalities are significant for a retrieval system while providing attracted products for customers. Therefore, how to take…

信息检索 · 计算机科学 2021-12-15 Boxuan Zhang , Chao Wei , Yan Jin , Weiru Zhang

Deep Learning (DL) has shown potential in accelerating Magnetic Resonance Image acquisition and reconstruction. Nevertheless, there is a dearth of tailored methods to guarantee that the reconstruction of small features is achieved with high…

图像与视频处理 · 电气工程与系统科学 2021-04-28 Francesco Calivá , Kaiyang Cheng , Rutwik Shah , Valentina Pedoia

Recent works on domain adaptation reveal the effectiveness of adversarial learning on filling the discrepancy between source and target domains. However, two common limitations exist in current adversarial-learning-based methods. First,…

计算机视觉与模式识别 · 计算机科学 2019-12-05 Minghao Xu , Jian Zhang , Bingbing Ni , Teng Li , Chengjie Wang , Qi Tian , Wenjun Zhang

Although Retrieval-Augmented Large Language Models (RALMs) demonstrate their superiority in terms of factuality, they do not consistently outperform the original retrieval-free Language Models (LMs). Our experiments reveal that this…

人工智能 · 计算机科学 2025-03-07 Mingda Li , Xinyu Li , Yifan Chen , Wenfeng Xuan , Weinan Zhang

Pseudo-Relevance Feedback (PRF) utilises the relevance signals from the top-k passages from the first round of retrieval to perform a second round of retrieval aiming to improve search effectiveness. A recent research direction has been the…

信息检索 · 计算机科学 2023-03-22 Hang Li , Shengyao Zhuang , Ahmed Mourad , Xueguang Ma , Jimmy Lin , Guido Zuccon