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As a deep learning model, deep confidence screening forest (gcForestcs) has achieved great success in various applications. Compared with the traditional deep forest approach, gcForestcs effectively reduces the high time cost by passing…

机器学习 · 计算机科学 2021-12-28 Pengfei Ma , Youxi Wu , Yan Li , Lei Guo , Zhao Li

Current deep learning models are mostly build upon neural networks, i.e., multiple layers of parameterized differentiable nonlinear modules that can be trained by backpropagation. In this paper, we explore the possibility of building deep…

机器学习 · 计算机科学 2020-07-07 Zhi-Hua Zhou , Ji Feng

A Discriminative Deep Forest (DisDF) as a metric learning algorithm is proposed in the paper. It is based on the Deep Forest or gcForest proposed by Zhou and Feng and can be viewed as a gcForest modification. The case of the fully…

机器学习 · 统计学 2017-05-29 Lev V. Utkin , Mikhail A. Ryabinin

Deep Neural Networks (DNN) have demonstrated superior ability to extract high level embedding vectors from low level features. Despite the success, the serving time is still the bottleneck due to expensive run-time computation of multiple…

机器学习 · 计算机科学 2017-03-16 Jie Zhu , Ying Shan , JC Mao , Dong Yu , Holakou Rahmanian , Yi Zhang

Random forests are a widely used machine learning algorithm, but their computational efficiency is undermined when applied to large-scale datasets with numerous instances and useless features. Herein, we propose a nonparametric feature…

机器学习 · 计算机科学 2022-01-19 Xiaojun Mao , Liuhua Peng , Zhonglei Wang

Deep Forest is a prominent machine learning algorithm known for its high accuracy in forecasting. Compared with deep neural networks, Deep Forest has almost no multiplication operations and has better performance on small datasets. However,…

机器学习 · 计算机科学 2022-11-07 Mingyu Zhu , Jiapeng Luo , Wendong Mao , Zhongfeng Wang

Decision trees and forests have achieved successes in various real applications, most working with all testing classes known in training data. In this work, we focus on learning with augmented class via forests, where an augmented class may…

机器学习 · 计算机科学 2025-07-15 Fan Xu , Wuyang Chen , Wei Gao

An algorithm to improve performance parameter for unsupervised decision forest clustering and density estimation is presented. Specifically, a dual assignment parameter is introduced as a density estimator by combining Random Forest and…

计算机视觉与模式识别 · 计算机科学 2015-07-19 Hayder Albehadili , Naz Islam

Random forest (RF) stands out as a highly favored machine learning approach for classification problems. The effectiveness of RF hinges on two key factors: the accuracy of individual trees and the diversity among them. In this study, we…

机器学习 · 计算机科学 2024-10-28 Ye-eun Kim , Seoung Yun Kim , Hyunjoong Kim

We propose a robust variant of boosting forest to the various adversarial defense methods, and apply it to enhance the robustness of the deep neural network. We retain the deep network architecture, weights, and middle layer features, then…

计算机视觉与模式识别 · 计算机科学 2022-11-01 Jianqiao Wangni

Internet companies are facing the need for handling large-scale machine learning applications on a daily basis and distributed implementation of machine learning algorithms which can handle extra-large scale tasks with great performance is…

机器学习 · 计算机科学 2020-03-17 Ya-Lin Zhang , Jun Zhou , Wenhao Zheng , Ji Feng , Longfei Li , Ziqi Liu , Ming Li , Zhiqiang Zhang , Chaochao Chen , Xiaolong Li , Zhi-Hua Zhou , YUAN , QI

Hash codes are a very efficient data representation needed to be able to cope with the ever growing amounts of data. We introduce a random forest semantic hashing scheme with information-theoretic code aggregation, showing for the first…

计算机视觉与模式识别 · 计算机科学 2015-04-20 Qiang Qiu , Guillermo Sapiro , Alex Bronstein

In this work, we present a random forest framework that learns the weights, shapes, and sparsities of feature representations for real-time semantic segmentation. Typical filters (kernels) have predetermined shapes and sparsities and learn…

计算机视觉与模式识别 · 计算机科学 2019-06-26 Byeongkeun Kang , Truong Q. Nguyen

Face Anti-Spoofing (FAS) is significant for the security of face recognition systems. Convolutional Neural Networks (CNNs) have been introduced to the field of the FAS and have achieved competitive performance. However, CNN-based methods…

计算机视觉与模式识别 · 计算机科学 2019-10-10 Rizhao Cai , Changsheng Chen

Random Forest (RF) is a widely used ensemble learning technique known for its robust classification performance across diverse domains. However, it often relies on hundreds of trees and all input features, leading to high inference cost and…

机器学习 · 计算机科学 2025-07-08 Sijan Bhattarai , Saurav Bhandari , Girija Bhusal , Saroj Shakya , Tapendra Pandey

Cost-sensitive feature selection describes a feature selection problem, where features raise individual costs for inclusion in a model. These costs allow to incorporate disfavored aspects of features, e.g. failure rates of as measuring…

机器学习 · 统计学 2020-08-18 Rudolf Jagdhuber , Michel Lang , Jörg Rahnenführer

In recent years, numerous screening methods have been published for ultrahigh-dimensional data that contain hundreds of thousands of features; however, most of these features cannot handle data with thousands of classes. Prediction models…

Deep learning methods are powerful tools but often suffer from expensive computation and limited flexibility. An alternative is to combine light-weight models with deep representations. As successful cases exist in several visual problems,…

计算机视觉与模式识别 · 计算机科学 2015-09-25 Bin Yang , Junjie Yan , Zhen Lei , Stan Z. Li

Decision trees are essential yet NP-complete to train, prompting the widespread use of heuristic methods such as CART, which suffers from sub-optimal performance due to its greedy nature. Recently, breakthroughs in finding optimal decision…

Hashing methods have attracted much attention for large scale image retrieval. Some deep hashing methods have achieved promising results by taking advantage of the strong representation power of deep networks recently. However, existing…

计算机视觉与模式识别 · 计算机科学 2017-05-10 Jian Zhang , Yuxin Peng
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