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Recently, large language models (LLMs) have been explored for integration with collaborative filtering (CF)-based recommendation systems, which are crucial for personalizing user experiences. However, a key challenge is that LLMs struggle…

Information Retrieval · Computer Science 2025-10-20 Chao Wang , Yixin Song , Jinhui Ye , Chuan Qin , Dazhong Shen , Lingfeng Liu , Xiang Wang , Yanyong Zhang

Ensemble methods, traditionally built with independently trained de-correlated models, have proven to be efficient methods for reducing the remaining residual generalization error, which results in robust and accurate methods for real-world…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Henrique Siqueira , Sven Magg , Stefan Wermter

Deep metric learning (DML) aims to learn a discriminative high-dimensional embedding space for downstream tasks like classification, clustering, and retrieval. Prior literature predominantly focuses on pair-based and proxy-based methods to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Xiruo Jiang , Yazhou Yao , Xili Dai , Fumin Shen , Xian-Sheng Hua , Heng-Tao Shen

Instance segmentation in electron microscopy (EM) volumes is tough due to complex shapes and sparse annotations. Self-supervised learning helps but still struggles with intricate visual patterns in EM. To address this, we propose a…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yinda Chen , Wei Huang , Xiaoyu Liu , Shiyu Deng , Qi Chen , Zhiwei Xiong

Classifying the topology of closed curves is a central problem in low dimensional topology with applications beyond mathematics spanning protein folding, polymer physics and even magnetohydrodynamics. The central problem is how to determine…

Machine Learning · Computer Science 2026-02-20 Djordje Mihajlovic , Davide Michieletto

Despite recent advances in face recognition, robust performance remains challenging under large variations in age, pose, and occlusion. A common strategy to address these issues is to guide representation learning with auxiliary supervision…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ana Dias , João Ribeiro Pinto , Hugo Proença , João C. Neves

The exponential growth in the number of complex datasets every year requires more enhancement in machine learning methods to provide robust and accurate data classification. Lately, deep learning approaches have achieved surpassing results…

Machine Learning · Computer Science 2018-10-22 Mojtaba Heidarysafa , Kamran Kowsari , Donald E. Brown , Kiana Jafari Meimandi , Laura E. Barnes

Human action recognition (HAR) with multi-modal inputs (RGB-D, skeleton, point cloud) can achieve high accuracy but typically relies on large labeled datasets and degrades sharply when sensors fail or are noisy. We present Robust…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Hasan Akgul , Mari Eplik , Javier Rojas , Akira Yamamoto , Rajesh Kumar , Maya Singh

Electromagnetic (EM) imaging is widely applied in sensing for security, biomedicine, geophysics, and various industries. It is an ill-posed inverse problem whose solution is usually computationally expensive. Machine learning (ML)…

Computational Physics · Physics 2022-07-27 Rui Guo , Tianyao Huang , Maokun Li , Haiyang Zhang , Yonina C. Eldar

We consider a discriminative learning (regression) problem, whereby the regression function is a convex combination of k linear classifiers. Existing approaches are based on the EM algorithm, or similar techniques, without provable…

Machine Learning · Computer Science 2014-08-01 Yuekai Sun , Stratis Ioannidis , Andrea Montanari

Machine learning-based Deepfake detection models have achieved impressive results on benchmark datasets, yet their performance often deteriorates significantly when evaluated on out-of-distribution data. In this work, we investigate an…

Computer Vision and Pattern Recognition · Computer Science 2025-07-09 Haroon Wahab , Hassan Ugail , Lujain Jaleel

Ensembling is a popular and effective method for improving machine learning (ML) models. It proves its value not only in classical ML but also for deep learning. Ensembles enhance the quality and trustworthiness of ML solutions, and allow…

Machine Learning · Computer Science 2022-06-28 Polina Proscura , Alexey Zaytsev

Ensemble Machine Learning (EML) techniques, especially stacking, have been shown to improve predictive performance by combining multiple base models. However, they are often criticized for their lack of interpretability. In this paper, we…

Machine Learning · Computer Science 2025-09-16 Moncef Garouani , Ayah Barhrhouj , Olivier Teste

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

Face clustering is an essential task in computer vision due to the explosion of related applications such as augmented reality or photo album management. The main challenge of this task lies in the imperfectness of similarities among image…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Xiaotian Yu , Yifan Yang , Aibo Wang , Ling Xing , Hanling Yi , Guangming Lu , Xiaoyu Wang

A new unsupervised learning method of depth and ego-motion using multiple masks from monocular video is proposed in this paper. The depth estimation network and the ego-motion estimation network are trained according to the constraints of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Guangming Wang , Hesheng Wang , Yiling Liu , Weidong Chen

Recognition of facial expression is a challenge when it comes to computer vision. The primary reasons are class imbalance due to data collection and uncertainty due to inherent noise such as fuzzy facial expressions and inconsistent labels.…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Jiaxiang Fan , Jian Zhou , Xiaoyu Deng , Huabin Wang , Liang Tao , Hon Keung Kwan

The effectiveness of learning in massive open online courses (MOOCs) can be significantly enhanced by introducing personalized intervention schemes which rely on building predictive models of student learning behaviors such as some…

Machine Learning · Computer Science 2018-12-20 Mucong Ding , Kai Yang , Dit-Yan Yeung , Ting-Chuen Pong

Electroencephalography (EEG)-based multimodal learning integrates brain signals with complementary modalities to improve mental state assessment, providing great clinical potential. The effectiveness of such paradigms largely depends on the…

Machine Learning · Computer Science 2026-05-12 Runhe Zhou , Shanglin Li , Guanxiang Huang , Xinliang Zhou , Qibin Zhao , Motoaki Kawanabe , Yi Ding , Cuntai Guan

In the healthcare domain, Magnetic Resonance Imaging (MRI) assumes a pivotal role, as it employs Artificial Intelligence (AI) and Machine Learning (ML) methodologies to extract invaluable insights from imaging data. Nonetheless, the…

Image and Video Processing · Electrical Eng. & Systems 2024-03-18 Al Amin , Kamrul Hasan , Saleh Zein-Sabatto , Deo Chimba , Liang Hong , Imtiaz Ahmed , Tariqul Islam
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