نتایج جستجو برای: online learning algorithm

تعداد نتایج: 1456670  

2013
Steven C. H. Hoi Jialei Wang Peilin Zhao Jinfeng Zhuang Zhiyong Liu

In this work, we present a new framework for large scale online kernel classification, making kernel methods efficient and scalable for large-scale online learning tasks. Unlike the regular budget kernel online learning scheme that usually uses different strategies to bound the number of support vectors, our framework explores a functional approximation approach to approximating a kernel functi...

2012
Anna Choromanska Claire Monteleoni

Approximating the k-means clustering objective with an online learning algorithm is an open problem. We introduce a family of online clustering algorithms by extending algorithms for online supervised learning, with access to expert predictors, to the unsupervised learning setting. Instead of computing prediction errors in order to re-weight the experts, the algorithms compute an approximation ...

2008
Prateek Jain Brian Kulis Inderjit S. Dhillon Kristen Grauman

Metric learning algorithms can provide useful distance functions for a variety of domains, and recent work has shown good accuracy for problems where the learner can access all distance constraints at once. However, in many real applications, constraints are only available incrementally, thus necessitating methods that can perform online updates to the learned metric. Existing online algorithms...

Journal: :Neural computation 2014
Yao Ma Tingting Zhao Kohei Hatano Masashi Sugiyama

We consider the learning problem under an online Markov decision process (MDP) aimed at learning the time-dependent decision-making policy of an agent that minimizes the regret-the difference from the best fixed policy. The difficulty of online MDP learning is that the reward function changes over time. In this letter, we show that a simple online policy gradient algorithm achieves regret O(√T)...

Journal: :international journal of robotics 0
mohammad hasan ghasemi babol university of technology mohammad jafar sadigh isfahan university of technology

the large amount of computation necessary for obtaining time optimal solution for moving a manipulator on specified path has made it impossible to introduce an on line time optimal control algorithm. most of this computational burden is due to calculation of switching points. in this paper a learning algorithm is proposed for finding the switching points. the method, which can be used for both ...

2012
Tom de Ruijter

In this work I address the issue of large scale learning in an online setting. To tackle it, I introduce a novel algorithm that enables semi-supervised learning in an online fashion. By combining state-of-the-art online methods such as Pegasos [3] with the multi-view co-regularization framework, I achieve significantly better performance on regression and binary classification tasks. This shows...

Journal: :CoRR 2018
Ashok Cutkosky Francesco Orabona

We introduce several new black-box reductions that significantly improve the design of adaptive and parameterfree online learning algorithms by simplifying analysis, improving regret guarantees, and sometimes even improving runtime. We reduce parameter-free online learning to online exp-concave optimization, we reduce optimization in a Banach space to one-dimensional optimization, and we reduce...

Journal: :Evolving Systems 2010
José de Jesús Rubio Diana M. Vázquez Jaime Pacheco

In this paper, an stable backpropagation algorithm is used to train an online evolving radial basis function neural network. Structure and parameters learning are updated at the same time in our algorithm, we do not make di¤erence in structure learning and parameters learning. It generate groups with an online clustering. The center is updated to achieve the center is near to the incoming data ...

2005
Guang-Bin Huang Nan-Ying Liang Hai-Jun Rong Paramasivan Saratchandran Narasimhan Sundararajan

The primitive Extreme Learning Machine (ELM) [1, 2, 3] with additive neurons and RBF kernels was implemented in batch mode. In this paper, its sequential modification based on recursive least-squares (RLS) algorithm, which referred as Online Sequential Extreme Learning Machine (OS-ELM), is introduced. Based on OS-ELM, Online Sequential Fuzzy Extreme Learning Machine (Fuzzy-ELM) is also introduc...

2009
Koby Crammer Mark Dredze Alex Kulesza

The recently introduced online confidence-weighted (CW) learning algorithm for binary classification performs well on many binary NLP tasks. However, for multi-class problems CW learning updates and inference cannot be computed analytically or solved as convex optimization problems as they are in the binary case. We derive learning algorithms for the multi-class CW setting and provide extensive...

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