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To understand how well a large language model captures certain semantic or syntactic features, researchers typically apply probing classifiers. However, the accuracy of these classifiers is critical for the correct interpretation of the…

计算与语言 · 计算机科学 2023-12-19 Sergey A. Saltykov

An algorithm for image processing is proposed. The proposed algorithm, which can be viewed as a quantum-classical hybrid algorithm, can transform a low-resolution bitonal image of a character from the set of alphanumeric characters (A-Z,…

量子物理 · 物理学 2022-12-27 Ankur Pal , Abhishek Shukla , Anirban Pathak

Diffusion-based data augmentation (DiffDA) has emerged as a promising approach to improving classification performance under data scarcity. However, existing works vary significantly in task configurations, model choices, and experimental…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Zekun Li , Yinghuan Shi , Yang Gao , Dong Xu

We present a gradient-tree-boosting-based structured learning model for jointly disambiguating named entities in a document. Gradient tree boosting is a widely used machine learning algorithm that underlies many top-performing natural…

计算与语言 · 计算机科学 2018-04-25 Yi Yang , Ozan Irsoy , Kazi Shefaet Rahman

Perceptrons are neuronal devices capable of fully discriminating linearly separable classes. Although straightforward to implement and train, their applicability is usually hindered by non-trivial requirements imposed by real-world…

神经与进化计算 · 计算机科学 2016-03-23 André L. V. Coelho , Fabrício O. de França

Unsupervised dictionary learning has been a key component in state-of-the-art computer vision recognition architectures. While highly effective methods exist for patch-based dictionary learning, these methods may learn redundant features…

计算机视觉与模式识别 · 计算机科学 2013-02-21 Yangqing Jia , Oriol Vinyals , Trevor Darrell

Elastic distortion of fingerprints has a negative effect on the performance of fingerprint recognition systems. This negative effect brings inconvenience to users in authentication applications. However, in the negative recognition scenario…

计算机视觉与模式识别 · 计算机科学 2018-01-08 Ali Dabouei , Hadi Kazemi , Seyed Mehdi Iranmanesh , Jeremi Dawson , Nasser M. Nasrabadi

Convolution Neural Networks (CNN) have been extremely successful in solving intensive computer vision tasks. The convolutional filters used in CNNs have played a major role in this success, by extracting useful features from the inputs.…

计算机视觉与模式识别 · 计算机科学 2020-01-08 Pravendra Singh , Pratik Mazumder , Vinay P. Namboodiri

We compare the performance of different clustering algorithms applied to the task of unsupervised text categorization. We consider agglomerative clustering algorithms, principal direction divisive partitioning and (for the first time)…

无序系统与神经网络 · 物理学 2007-05-23 D. Volk , M. G. Stepanov

We propose PathBoost, a gradient tree boosting method for graph-level classification and regression that learns discriminative path-based features directly from the input graph structure. Building on a previous work, which was tailored to a…

机器学习 · 计算机科学 2026-05-12 Claudio Meggio , Johan Pensar , Riccardo De Bin

Predictive models based on machine learning can be highly sensitive to data error. Training data are often combined with a variety of different sources, each susceptible to different types of inconsistencies, and new data streams during…

数据库 · 计算机科学 2017-11-07 Sanjay Krishnan , Michael J. Franklin , Ken Goldberg , Eugene Wu

Deep networks for visual recognition are known to leverage "easy to recognise" portions of objects such as faces and distinctive texture patterns. The lack of a holistic understanding of objects may increase fragility and overfitting. In…

计算机视觉与模式识别 · 计算机科学 2019-10-28 Ruth Fong , Andrea Vedaldi

Boosting is a celebrated machine learning approach which is based on the idea of combining weak and moderately inaccurate hypotheses to a strong and accurate one. We study boosting under the assumption that the weak hypotheses belong to a…

机器学习 · 计算机科学 2024-02-14 Noga Alon , Alon Gonen , Elad Hazan , Shay Moran

Deep artificial neural networks require a large corpus of training data in order to effectively learn, where collection of such training data is often expensive and laborious. Data augmentation overcomes this issue by artificially inflating…

机器学习 · 计算机科学 2017-08-22 Luke Taylor , Geoff Nitschke

Label noise, which refers to the mislabeling of instances in a dataset, can significantly impair classifier performance, increase model complexity, and affect feature selection. While most research has concentrated on deep neural networks…

机器学习 · 计算机科学 2025-01-07 Anita Eisenbürger , Daniel Otten , Anselm Hudde , Frank Hopfgartner

Prognostication of medical problems using the clinical data by leveraging the Machine Learning techniques with stellar precision is one of the most important real world challenges at the present time. Considering the medical problem of…

机器学习 · 计算机科学 2022-08-16 Abhishek Gupta , Sannidhi Shetty , Raunak Joshi , Ronald Melwin Laban

We study online boosting, the task of converting any weak online learner into a strong online learner. Based on a novel and natural definition of weak online learnability, we develop two online boosting algorithms. The first algorithm is an…

机器学习 · 计算机科学 2015-02-10 Alina Beygelzimer , Satyen Kale , Haipeng Luo

We develop abc-logitboost, based on the prior work on abc-boost and robust logitboost. Our extensive experiments on a variety of datasets demonstrate the considerable improvement of abc-logitboost over logitboost and abc-mart.

机器学习 · 计算机科学 2009-08-31 Ping Li

In this survey, we discuss several different types of gradient boosting algorithms and illustrate their mathematical frameworks in detail: 1. introduction of gradient boosting leads to 2. objective function optimization, 3. loss function…

机器学习 · 统计学 2019-08-20 Zhiyuan He , Danchen Lin , Thomas Lau , Mike Wu

Alongside the well-publicized accomplishments of deep neural networks there has emerged an apparent bug in their success on tasks such as object recognition: with deep models trained using vanilla methods, input images can be slightly…

机器学习 · 计算机科学 2021-03-04 Jacob Abernethy , Pranjal Awasthi , Satyen Kale