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Stochastic variational inference (SVI) plays a key role in Bayesian deep learning. Recently various divergences have been proposed to design the surrogate loss for variational inference. We present a simple upper bound of the evidence as…

机器学习 · 计算机科学 2019-12-03 Chunlin Ji , Haige Shen

Chain-of-Thought (CoT) reasoning has been widely adopted to enhance Large Language Models (LLMs) by decomposing complex tasks into simpler, sequential subtasks. However, extending CoT to vision-language reasoning tasks remains challenging,…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Luozheng Qin , Jia Gong , Yuqing Sun , Tianjiao Li , Mengping Yang , Xiaomeng Yang , Chao Qu , Zhiyu Tan , Hao Li

We consider the problem of optimal unsignalized intersection management, wherein we seek to obtain safe and optimal trajectories, for a set of robots that arrive randomly and continually. This problem involves repeatedly solving a mixed…

机器人学 · 计算机科学 2024-08-08 Nishchal Hoysal G. , Pavankumar Tallapragada

This paper proposes a novel Unified Feature Optimization (UFO) paradigm for training and deploying deep models under real-world and large-scale scenarios, which requires a collection of multiple AI functions. UFO aims to benefit each single…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Teng Xi , Yifan Sun , Deli Yu , Bi Li , Nan Peng , Gang Zhang , Xinyu Zhang , Zhigang Wang , Jinwen Chen , Jian Wang , Lufei Liu , Haocheng Feng , Junyu Han , Jingtuo Liu , Errui Ding , Jingdong Wang

In many data classification problems, there is no linear relationship between an explanatory and the dependent variables. Instead, there may be ranges of the input variable for which the observed outcome is signficantly more or less likely.…

机器学习 · 计算机科学 2016-04-13 Mallory Sheth , Roy Welsch , Natasha Markuzon

The dramatic growth of big datasets presents a new challenge to data storage and analysis. Data reduction, or subsampling, that extracts useful information from datasets is a crucial step in big data analysis. We propose an orthogonal…

统计方法学 · 统计学 2021-06-01 Lin Wang , Jake Elmstedt , Weng Kee Wong , Hongquan Xu

Previous single-stage detectors typically suffer the misalignment between localization accuracy and classification confidence. To solve the misalignment problem, we introduce a novel rectification method named neighbor IoU-voting (NIV)…

计算机视觉与模式识别 · 计算机科学 2024-01-24 Shuai Liu , Di Wang , Quan Wang , Kai Huang

The quantum approximate optimization algorithm (QAOA) is a general-purpose algorithm for combinatorial optimization. In this paper, we analyze the performance of the QAOA on a statistical estimation problem, namely, the spiked tensor model,…

量子物理 · 物理学 2026-02-19 Leo Zhou , Joao Basso , Song Mei

L1 -penalized regression methods such as the Lasso (Tibshirani 1996) that achieve both variable selection and shrinkage have been very popular. An extension of this method is the Fused Lasso (Tibshirani and Wang 2007), which allows for the…

统计计算 · 统计学 2010-12-01 Holger Höfling , Harald Binder , Martin Schumacher

Medical imaging systems are commonly assessed and optimized by use of objective measures of image quality (IQ). The Ideal Observer (IO) performance has been advocated to provide a figure-of-merit for use in assessing and optimizing imaging…

信号处理 · 电气工程与系统科学 2020-07-16 Weimin Zhou , Hua Li , Mark A. Anastasio

This study proposes sparse estimation methods for the generalized linear models, which run one of least angle regression (LARS) and least absolute shrinkage and selection operator (LASSO) in the tangent space of the manifold of the…

机器学习 · 统计学 2020-07-20 Yoshihiro Hirose

Many Artificial Intelligence tasks cannot be evaluated with a single quality criterion and some sort of weighted combination is needed to provide system rankings. A problem of weighted combination measures is that slight changes in the…

人工智能 · 计算机科学 2014-01-21 Enrique Amigó , Julio Gonzalo , Javier Artiles , Felisa Verdejo

The self-supervised ultrasound (US) video model pretraining can use a small amount of labeled data to achieve one of the most promising results on US diagnosis. However, it does not take full advantage of multi-level knowledge for learning…

计算机视觉与模式识别 · 计算机科学 2022-10-14 Chunhui Zhang , Yixiong Chen , Li Liu , Qiong Liu , Xi Zhou

In the paper, we consider the problem of link prediction in time-evolving graphs. We assume that certain graph features, such as the node degree, follow a vector autoregressive (VAR) model and we propose to use this information to improve…

机器学习 · 统计学 2012-09-17 Emile Richard , Stephane Gaiffas , Nicolas Vayatis

The interpretation of the electrocardiogram (ECG) gives clinical information and helps in assessing heart function. There are distinct ECG patterns associated with a specific class of arrythmia. The convolutional neural network is currently…

信号处理 · 电气工程与系统科学 2022-01-31 Zeineb Fki , Boudour Ammar , Mounir Ben Ayed

The performance of deep (reinforcement) learning systems crucially depends on the choice of hyperparameters. Their tuning is notoriously expensive, typically requiring an iterative training process to run for numerous steps to convergence.…

机器学习 · 计算机科学 2021-01-19 Vu Nguyen , Sebastian Schulze , Michael A Osborne

Medical image segmentation is a critical task in computer vision, with UNet serving as a milestone architecture. The typical component of UNet family is the skip connection, however, their skip connections face two significant limitations:…

计算机视觉与模式识别 · 计算机科学 2025-10-24 Quansong He , Xiangde Min , Kaishen Wang , Tao He

Unmanned aerial vehicles (UAVs) are expected to be an integral part of wireless networks, and determining collision-free trajectories for multiple UAVs while satisfying requirements of connectivity with ground base stations (GBSs) is a…

机器人学 · 计算机科学 2021-04-19 Xueyuan Wang , M. Cenk Gursoy

We propose a novel rank-adaptive higher-order orthogonal iteration (HOOI) algorithm to compute the truncated Tucker decomposition of higher-order tensors with a given error tolerance, and prove that the method is locally optimal and…

数值分析 · 数学 2021-10-26 Chuanfu Xiao , Chao Yang

The Combined Algorithm Selection and Hyperparameter Optimization (CASH) problem is fundamental in Automated Machine Learning (AutoML). Inspired by the success of ensemble learning, recent AutoML systems construct post-hoc ensembles for…

机器学习 · 计算机科学 2026-03-26 Beicheng Xu , Wei Liu , Keyao Ding , Yupeng Lu , Bin Cui