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Reinforcement learning (RL) has made significant advancements, achieving superhuman performance in various tasks. However, RL agents often operate under the assumption of environmental stationarity, which poses a great challenge to learning…

机器学习 · 计算机科学 2025-11-18 Guoqing Ma , Yuhan Zhang , Yuming Dai , Guangfu Hao , Yang Chen , Shan Yu

In this paper, we study the OOD generalization of neural algorithmic reasoning tasks, where the goal is to learn an algorithm (e.g., sorting, breadth-first search, and depth-first search) from input-output pairs using deep neural networks.…

机器学习 · 计算机科学 2023-03-21 Sadegh Mahdavi , Kevin Swersky , Thomas Kipf , Milad Hashemi , Christos Thrampoulidis , Renjie Liao

Global pooling is one of the most significant operations in many machine learning models and tasks, which works for information fusion and structured data (like sets and graphs) representation. However, without solid mathematical…

机器学习 · 计算机科学 2022-12-14 Hongteng Xu , Minjie Cheng

Sliding window sums are widely used for string indexing, hashing and time series analysis. We have developed a family of the generic vectorized sliding sum algorithms that provide speedup of O(P/w) for window size $w$ and number of…

机器学习 · 计算机科学 2023-05-29 Roman Snytsar

Open-world object detection (OWOD) is a challenging problem that combines object detection with incremental learning and open-set learning. Compared to standard object detection, the OWOD setting is task to: 1) detect objects seen during…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Jinan Yu , Liyan Ma , Zhenglin Li , Yan Peng , Shaorong Xie

Convolutional Neural Networks (CNNs) are artificial learning systems typically based on two operations: convolution, which implements feature extraction through filtering, and pooling, which implements dimensionality reduction. The impact…

机器学习 · 计算机科学 2022-02-18 Dimitrios E. Diamantis , Dimitris K. Iakovidis

Machine Learning requires a large amount of training data in order to build accurate models. Sometimes the data arrives over time, requiring significant storage space and recalculating the model to account for the new data. On-line learning…

机器学习 · 计算机科学 2023-07-07 Mohammad Abu-Shaira , Greg Speegle

This paper introduces an improved reranking method for the Bag-of-Words (BoW) based image search. Built on [1], a directed image graph robust to outlier distraction is proposed. In our approach, the relevance among images is encoded in the…

计算机视觉与模式识别 · 计算机科学 2014-06-04 Ziqiong Liu , Shengjin Wang , Liang Zheng , Qi Tian

Detecting out-of-distribution (OOD) instances is significant for the safe deployment of NLP models. Among recent textual OOD detection works based on pretrained language models (PLMs), distance-based methods have shown superior performance.…

计算与语言 · 计算机科学 2022-10-17 Sishuo Chen , Xiaohan Bi , Rundong Gao , Xu Sun

We present a simple neural network for word alignment that builds source and target word window representations to compute alignment scores for sentence pairs. To enable unsupervised training, we use an aggregation operation that summarizes…

计算与语言 · 计算机科学 2016-07-01 Joel Legrand , Michael Auli , Ronan Collobert

Vehicle re-identification is an important computer vision task where the objective is to identify a specific vehicle among a set of vehicles seen at various viewpoints. Recent methods based on deep learning utilize a global average pooling…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Abu Md Niamul Taufique , Andreas Savakis

Generalization to out-of-distribution (OOD) data is a critical challenge in machine learning. Ensemble-based methods, like weight space ensembles that interpolate model parameters, have been shown to achieve superior OOD performance.…

机器学习 · 计算机科学 2024-07-16 Yong Lin , Lu Tan , Yifan Hao , Honam Wong , Hanze Dong , Weizhong Zhang , Yujiu Yang , Tong Zhang

Most convolutional neural networks use some method for gradually downscaling the size of the hidden layers. This is commonly referred to as pooling, and is applied to reduce the number of parameters, improve invariance to certain…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Faraz Saeedan , Nicolas Weber , Michael Goesele , Stefan Roth

The progression of lung cancer implies the intrinsic ordinal relationship of lung nodules at different stages-from benign to unsure then to malignant. This problem can be solved by ordinal regression methods, which is between classification…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Yiming Lei , Hongming Shan , Junping Zhang

We define the concept of CompositeTasking as the fusion of multiple, spatially distributed tasks, for various aspects of image understanding. Learning to perform spatially distributed tasks is motivated by the frequent availability of only…

计算机视觉与模式识别 · 计算机科学 2021-06-21 Nikola Popovic , Danda Pani Paudel , Thomas Probst , Guolei Sun , Luc Van Gool

One of the primary goals of statistical precision medicine is to learn optimal individualized treatment rules (ITRs). The classification-based, or machine learning-based, approach to estimating optimal ITRs was first introduced in…

统计方法学 · 统计学 2024-06-18 Sophia Yazzourh , Nikki L. B. Freeman

Scene flow estimation, which predicts the 3D motion of scene points from point clouds, is a core task in autonomous driving and many other 3D vision applications. Existing methods either suffer from structure distortion due to ignorance of…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Yun Wang , Cheng Chi , Xin Yang

An important component of computer vision research is object detection. In recent years, there has been tremendous progress in the study of construction site images. However, there are obvious problems in construction object detection,…

计算机视觉与模式识别 · 计算机科学 2022-10-31 Mahdi Bonyani , Maryam Soleymani

In recent times, with the exception of sporadic cases, the trend in Computer Vision is to achieve minor improvements compared to considerable increases in complexity. To reverse this trend, we propose a novel method to boost image…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Antonio Bruno , Davide Moroni , Massimo Martinelli

We look into the task of \emph{generalizing} word embeddings: given a set of pre-trained word vectors over a finite vocabulary, the goal is to predict embedding vectors for out-of-vocabulary words, \emph{without} extra contextual…

计算与语言 · 计算机科学 2020-10-22 Zhao Jinman , Shawn Zhong , Xiaomin Zhang , Yingyu Liang