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While Retrieval-Augmented Generation (RAG) effectively reduces hallucinations by integrating external knowledge bases, it introduces vulnerabilities to membership inference attacks (MIAs), particularly in systems handling sensitive data.…

密码学与安全 · 计算机科学 2025-09-09 Xinyu Gao , Xiangtao Meng , Yingkai Dong , Zheng Li , Shanqing Guo

Existing retrieval-augmented generation (RAG) systems are primarily designed under the assumption that each query has a single correct answer. This overlooks common information-seeking scenarios with multiple plausible answers, where…

计算与语言 · 计算机科学 2026-02-03 Tianyi Hu , Niket Tandon , Akhil Arora

Multimodal Retrieval-Augmented Generation (Visual RAG) significantly advances question answering by integrating visual and textual evidence. Yet, current evaluations fail to systematically account for query difficulty and ambiguity. We…

计算与语言 · 计算机科学 2026-01-14 Yuelyu Ji , Wuwei Lan , Patrick NG

Outlier detection amounts to finding data points that differ significantly from the norm. Classic outlier detection methods are largely designed for single data type such as continuous or discrete. However, real world data is increasingly…

机器学习 · 统计学 2016-08-18 Kien Do , Truyen Tran , Dinh Phung , Svetha Venkatesh

A primary interest in dynamic inverse problems is to identify the underlying temporal behaviour of the system from outside measurements. In this work we consider the case, where the target can be represented by a decomposition of spatial…

数值分析 · 数学 2020-06-09 Simon Arridge , Pascal Fernsel , Andreas Hauptmann

We propose a robust variable selection procedure using a divergence based M-estimator combined with a penalty function. It produces robust estimates of the regression parameters and simultaneously selects the important explanatory…

统计方法学 · 统计学 2020-01-01 Abhijit Mandal , Samiran Ghosh

Many studies have focused on investigating deviations from additive interaction of two dichotomous risk factors on a binary outcome. There is, however, a gap in the literature with respect to interactions on the additive scale of >2 risk…

应用统计 · 统计学 2020-05-15 Michail Katsoulis , Christina Bamia

Outlier detection is the identification of points in a dataset that do not conform to the norm. Outlier detection is highly sensitive to the choice of the detection algorithm and the feature subspace used by the algorithm. Extracting…

人工智能 · 计算机科学 2017-05-18 Yanjie Fu , Charu Aggarwal , Srinivasan Parthasarathy , Deepak S. Turaga , Hui Xiong

One of the key problems in Retrieval-augmented generation (RAG) systems is that chunk-based retrieval pipelines represent the source chunks as atomic objects, mixing the information contained within such a chunk into a single vector. These…

Multi-modal vehicle Re-Identification (ReID) aims to leverage complementary information from RGB, Near Infrared (NIR), and Thermal Infrared (TIR) modalities to retrieve the same vehicle. The challenges of multi-modal vehicle ReID arise from…

计算机视觉与模式识别 · 计算机科学 2026-01-07 Aihua Zheng , Ya Gao , Shihao Li , Chenglong Li , Jin Tang

An accurate and substantial dataset is essential for training a reliable and well-performing model. However, even manually annotated datasets contain label errors, not to mention automatically labeled ones. Previous methods for label…

机器学习 · 计算机科学 2024-01-05 Anastasiia Sedova , Lena Zellinger , Benjamin Roth

Unmeasured confounding, selection bias, and measurement error are well-known sources of bias in epidemiologic research. Methods for assessing these biases have their own limitations. Many quantitative sensitivity analysis approaches…

统计方法学 · 统计学 2021-08-11 Louisa H. Smith , Maya B. Mathur , Tyler J. VanderWeele

The accuracy of machine learning interatomic potentials suffers from reference data that contains numerical noise. Often originating from unconverged or inconsistent electronic-structure calculations, this noise is challenging to identify.…

机器学习 · 统计学 2026-02-10 Terry C. W. Lam , Niamh O'Neill , Christoph Schran , Lars L. Schaaf

We propose a new approach to falsify causal discovery algorithms without ground truth, which is based on testing the causal model on a pair of variables that has been dropped when learning the causal model. To this end, we use the…

机器学习 · 统计学 2024-11-11 Daniela Schkoda , Philipp Faller , Patrick Blöbaum , Dominik Janzing

Identifying genes associated with complex human diseases is one of the main challenges of human genetics and computational medicine. To answer this question, millions of genetic variants get screened to identify a few of importance. To…

基因组学 · 定量生物学 2015-09-01 Aziz M. Mezlini , Fabio Fuligni , Adam Shlien , Anna Goldenberg

Multiresolution image fusion is a key problem for real-time satellite imaging and plays a central role in detecting and monitoring natural phenomena such as floods. It aims to solve the trade-off between temporal and spatial resolution in…

图像与视频处理 · 电气工程与系统科学 2025-09-17 Haoqing Li , Ricardo Borsoi , Tales Imbiriba , Pau Closas

Robustness against data inconsistencies, imaging artifacts and acquisition speed are crucial factors limiting the possible range of applications for magnetic resonance imaging (MRI). Therefore, we report a novel calibrationless parallel…

The entropy of a pair of random variables is commonly depicted using a Venn diagram. This representation is potentially misleading, however, since the multivariate mutual information can be negative. This paper presents new measures of…

信息论 · 计算机科学 2020-04-22 Conor Finn , Joseph T. Lizier

Image generative models can learn the distributions of the training data and consequently generate examples by sampling from these distributions. However, when the training dataset is corrupted with outliers, generative models will likely…

机器学习 · 计算机科学 2022-09-21 Chieh-Hsin Lai , Dongmian Zou , Gilad Lerman

A broad range of technologies rely on remote inference, wherein data acquired is conveyed over a communication channel for inference in a remote server. Communication between the participating entities is often carried out over rate-limited…

信号处理 · 电气工程与系统科学 2025-01-07 Eyal Fishel , May Malka , Shai Ginzach , Nir Shlezinger