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The prediction and selection of lesion features are two important tasks in voxel-based neuroimage analysis. Existing multivariate learning models take two tasks equivalently and optimize simultaneously. However, in addition to lesion…

计算机视觉与模式识别 · 计算机科学 2020-07-20 Xinwei Sun , Wenjing Han , Lingjing Hu , Yuan Yao , Yizhou Wang

The increasing demand for long-context modeling in large language models (LLMs) is bottlenecked by the quadratic complexity of the standard self-attention mechanism. The community has proposed sparse attention to mitigate this issue.…

人工智能 · 计算机科学 2025-11-18 Jingze Shi , Yifan Wu , Yiran Peng , Bingheng Wu , Liangdong Wang , Guang Liu , Yuyu Luo

Unsupervised integrative analysis of multiple data sources has become common place and scalable algorithms are necessary to accommodate ever increasing availability of data. Only few currently methods have estimation speed as their focus,…

统计方法学 · 统计学 2024-05-17 Felix Held

We study parameter estimation in Nonlinear Factor Analysis (NFA) where the generative model is parameterized by a deep neural network. Recent work has focused on learning such models using inference (or recognition) networks; we identify a…

机器学习 · 统计学 2017-10-18 Rahul G. Krishnan , Dawen Liang , Matthew Hoffman

A rich supply of data and innovative algorithms have made data-driven modeling a popular technique in modern industry. Among various data-driven methods, latent variable models (LVMs) and their counterparts account for a major share and…

系统与控制 · 电气工程与系统科学 2022-10-06 Xiangyin Kong , Xiaoyu Jiang , Bingxin Zhang , Jinsong Yuan , Zhiqiang Ge

In the context of classification problems, Deep Learning (DL) approaches represent state of art. Many DL approaches are based on variations of standard multi-layer feed-forward neural networks. These are also referred to as deep networks.…

机器学习 · 计算机科学 2023-11-21 Andrea Apicella , Francesco Isgrò , Roberto Prevete

Deep Learning (DL) methods show very good performance when trained on large, balanced data sets. However, many practical problems involve imbalanced data sets, or/and classes with a small number of training samples. The performance of DL…

机器学习 · 计算机科学 2017-02-07 Dolev Raviv , Margarita Osadchy

Predicting time-series is of great importance in various scientific and engineering fields. However, in the context of limited and noisy data, accurately predicting dynamics of all variables in a high-dimensional system is a challenging…

机器学习 · 计算机科学 2025-06-16 Zijian Wang , Peng Tao , Luonan Chen

Large Language Models (LLMs) have demonstrated tremendous potential as the next-generation ranking-based recommendation system. Many recent works have shown that LLMs can significantly outperform conventional click-through-rate (CTR)…

信息检索 · 计算机科学 2025-03-18 Allen Lin , Renqin Cai , Yun He , Hanchao Yu , Jing Qian , Rui Li , Qifan Wang , James Caverlee

In many real-world regression tasks, the data distribution is heavily skewed, and models learn predominantly from abundant majority samples while failing to predict minority labels accurately. While imbalanced classification has been…

机器学习 · 计算机科学 2025-09-30 Shayan Alahyari

High-dimensional and sparse (HiDS) matrices are frequently adopted to describe the complex relationships in various big data-related systems and applications. A Position-transitional Latent Factor Analysis (PLFA) model can accurately and…

机器学习 · 计算机科学 2022-04-19 Jia Chen , Di Wu , Xin Luo

High-dimensional data that evolve dynamically feature predominantly in the modern data era. As a partial response to this, recent years have seen increasing emphasis to address the dimensionality challenge. However, the non-static nature of…

统计方法学 · 统计学 2019-01-21 Binyan Jiang , Ziqi Chen , Chenlei Leng

Accurately annotating large scale dataset is notoriously expensive both in time and in money. Although acquiring low-quality-annotated dataset can be much cheaper, it often badly damages the performance of trained models when using such…

机器学习 · 计算机科学 2019-11-05 Yilun Xu , Peng Cao , Yuqing Kong , Yizhou Wang

This paper introduces a novel deep learning-based multimodal fusion architecture aimed at enhancing the perception capabilities of autonomous navigation robots in complex environments. By utilizing innovative feature extraction modules,…

机器学习 · 计算机科学 2025-04-29 Delun Lai , Yeyubei Zhang , Yunchong Liu , Chaojie Li , Huadong Mo

We address the problem of learning the parameters of a stable linear time invariant (LTI) system or linear dynamical system (LDS) with unknown latent space dimension, or order, from a single time--series of noisy input-output data. We focus…

系统与控制 · 计算机科学 2020-04-09 Tuhin Sarkar , Alexander Rakhlin , Munther A. Dahleh

Multimodal Large Language Models (MLLMs) have demonstrated strong capabilities across a wide range of vision language tasks. However, when applied to large scale image classification, their performance degrades significantly as the label…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Zhipeng Ye , Jiaqi Huang , Feng Jiang , Qiufeng Wang , Yikang Duan , Dawei Wang , Xihang Zhou , Qian Qiao

Large Language Models (LLMs) have demonstrated remarkable performance across a wide range of tasks, but their deployment is often constrained by substantial memory footprints and computational costs. While prior work has achieved…

机器学习 · 计算机科学 2026-02-04 Jiangyong Yu , Xiaomeng Han , Xing Hu , Chen Xu , Zhe Jiang , Dawei Yang

Many decision-making problems feature multiple objectives. In such problems, it is not always possible to know the preferences of a decision-maker for different objectives. However, it is often possible to observe the behavior of…

人工智能 · 计算机科学 2023-04-28 Junlin Lu , Patrick Mannion , Karl Mason

Modelling the behaviour of highly nonlinear dynamical systems with robust uncertainty quantification is a challenging task which typically requires approaches specifically designed to address the problem at hand. We introduce a…

机器学习 · 统计学 2024-01-25 Thomas Baldwin-McDonald , Mauricio A. Álvarez

We present an approach to data fusion that combines the interpretability of structured probabilistic graphical models with the flexibility of neural networks. The proposed method, lightweight data fusion (LDF), emphasizes posterior analysis…

机器学习 · 统计学 2020-11-24 Christopher L. Dean , Stephen J. Lee , Jason Pacheco , John W. Fisher