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Weighted SVM (or fuzzy SVM) is the most widely used SVM variant owning its effectiveness to the use of instance weights. Proper selection of the instance weights can lead to increased generalization performance. In this work, we extend the…

Machine Learning · Computer Science 2018-09-18 Ioannis Sarafis , Christos Diou , Anastasios Delopoulos

This paper studies the generalization performance of multi-class classification algorithms, for which we obtain, for the first time, a data-dependent generalization error bound with a logarithmic dependence on the class size, substantially…

Machine Learning · Computer Science 2015-06-16 Yunwen Lei , Ürün Dogan , Alexander Binder , Marius Kloft

Multiview recognition has been well studied in the literature and achieves decent performance in object recognition and retrieval task. However, most previous works rely on supervised learning and some impractical underlying assumptions,…

Computer Vision and Pattern Recognition · Computer Science 2020-03-31 Chih-Hui Ho , Bo Liu , Tz-Ying Wu , Nuno Vasconcelos

Support Vector Machines (SVMs) are popular tools for data mining tasks such as classification, regression, and density estimation. However, original SVM (C-SVM) only considers local information of data points on or over the margin.…

Artificial Intelligence · Computer Science 2010-09-28 Xin Liu , Ying Ding , Forrest Sheng Bao

We consider the problem of multi-class classification and a stochastic opti- mization approach to it. We derive risk bounds for stochastic mirror descent algorithm and provide examples of set geometries that make the use of the algorithm…

Optimization and Control · Mathematics 2016-12-09 Daria Reshetova

We propose a unified look at jointly learning multiple vision tasks and visual domains through universal representations, a single deep neural network. Learning multiple problems simultaneously involves minimizing a weighted sum of multiple…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Wei-Hong Li , Xialei Liu , Hakan Bilen

Training of one-vs.-rest SVMs can be parallelized over the number of classes in a straight forward way. Given enough computational resources, one-vs.-rest SVMs can thus be trained on data involving a large number of classes. The same cannot…

Machine Learning · Statistics 2017-07-05 Maximilian Alber , Julian Zimmert , Urun Dogan , Marius Kloft

Machine Learning has become very famous currently which assist in identifying the patterns from the raw data. Technological advancement has led to substantial improvement in Machine Learning which, thus helping to improve prediction.…

Machine Learning · Computer Science 2018-10-11 Prayag Tiwari , Massimo Melucci

Active Learning aims to optimize performance while minimizing annotation costs by selecting the most informative samples from an unlabelled pool. Traditional uncertainty sampling often leads to sampling bias by choosing similar uncertain…

Machine Learning · Computer Science 2024-11-27 Tejaswi Kasarla , Abhishek Jha , Faye Tervoort , Rita Cucchiara , Pascal Mettes

Pre-trained large language models (LLM) have emerged as a powerful tool for simulating various scenarios and generating output given specific instructions and multimodal input. In this work, we analyze the specific use of LLM to enhance a…

Machine Learning · Computer Science 2024-05-10 Yuhang Wu , Yingfei Wang , Chu Wang , Zeyu Zheng

We present DCSVM, an efficient algorithm for multi-class classification using Support Vector Machines. DCSVM is a divide and conquer algorithm which relies on data sparsity in high dimensional space and performs a smart partitioning of the…

Machine Learning · Computer Science 2018-10-24 Duleep Rathgamage Don , Ionut E. Iacob

Multiview learning problem refers to the problem of learning a classifier from multiple view data. In this data set, each data points is presented by multiple different views. In this paper, we propose a novel method for this problem. This…

Computer Vision and Pattern Recognition · Computer Science 2016-01-12 Qingjun Wang , Haiyan Lv , Jun Yue , Eugene Mitchell

The Contrastive Language-Image Pre-training (CLIP) framework has become a widely used approach for multimodal representation learning, particularly in image-text retrieval and clustering. However, its efficacy is constrained by three key…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Tiancheng Gu , Kaicheng Yang , Ziyong Feng , Xingjun Wang , Yanzhao Zhang , Dingkun Long , Yingda Chen , Weidong Cai , Jiankang Deng

The theoretical analysis of multi-class classification has proved that the existing multi-class classification methods can train a classifier with high classification accuracy on the test set, when the instances are precise in the training…

Machine Learning · Computer Science 2022-08-24 Guangzhi Ma , Jie Lu , Feng Liu , Zhen Fang , Guangquan Zhang

Machine learning models are widely used to support stealth assessment in digital learning environments. Existing approaches typically rely on abstracted gameplay log data, which may overlook subtle behavioral cues linked to learners'…

Machine Learning · Computer Science 2025-07-31 Clemens Witt , Thiemo Leonhardt , Nadine Bergner , Mareen Grillenberger

We present consistent algorithms for multiclass learning with complex performance metrics and constraints, where the objective and constraints are defined by arbitrary functions of the confusion matrix. This setting includes many common…

We propose a quantum algorithm for training nonlinear support vector machines (SVM) for feature space learning where classical input data is encoded in the amplitudes of quantum states. Based on the classical SVM-perf algorithm of Joachims,…

Quantum Physics · Physics 2020-10-21 Jonathan Allcock , Chang-Yu Hsieh

Perception is a fundamental task in the field of computer vision, encompassing a diverse set of subtasks that can be systematically categorized into four distinct groups based on two dimensions: prediction type and instruction type.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Wentao Xiang , Haoxian Tan , Cong Wei , Yujie Zhong , Dengjie Li , Yujiu Yang

Representing data in hyperbolic space can effectively capture latent hierarchical relationships. With the goal of enabling accurate classification of points in hyperbolic space while respecting their hyperbolic geometry, we introduce…

Machine Learning · Computer Science 2018-06-04 Hyunghoon Cho , Benjamin DeMeo , Jian Peng , Bonnie Berger

Existing popular unsupervised embedding learning methods focus on enhancing the instance-level local discrimination of the given unlabeled images by exploring various negative data. However, the existed sample outliers which exhibit large…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Jiahuan Zhou , Yansong Tang , Bing Su , Ying Wu