DR-XGBoost: An XGBoost model for field-road segmentation based on dual feature extraction and recursive feature elimination

IF 2.2 2区 农林科学 Q2 AGRICULTURAL ENGINEERING
Yuzhen Xiao, Guozhao Mo, Xiya Xiong, Jiawen Pan, Bingbing Hu, Caicong Wu, Weixin Zhai
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Abstract

Field-road segmentation is one of the key tasks in the processing of the trajectory of agricultural machinery. To improve the accuracy of the field-road segmentation, this study proposed an XGBoost model based on dual feature extraction and recursive feature elimination called DR-XGBoost. DR-XGBoost takes only a small amount of agricultural machine trajectory features as input. Firstly, the model adopted the dual feature extraction method we designed to rapidly expand the number of features and then adequately extract local trajectory features by the time window and feature extraction operator. Secondly, the model applies the recursive feature elimination algorithm to eliminate redundant features from the perspective of the model segmentation effect and thus reduce the computational consumption of model training. Thirdly, it trains XGBoost to complete the trajectory segmentation. To evaluate the effectiveness of DR-XGBoost, we conducted a series of experiments on a real trajectory dataset of agricultural machines. The model achieves a 98.2% Macro-F1 score on the dataset, which is 10.9% higher than the previous state-of-art. The proposal of DR-XGBoost fills the knowledge gap of trajectory feature extraction for agricultural machinery and provides a reasonable and effective feature selection scheme for the field-road segmentation problem. Keywords: trajectory segmentation, feature extraction, recursive feature elimination, time window, XGBoost DOI: 10.25165/j.ijabe.20231603.8187 Citation: Xiao Y Z, Mo G Z, Xiong X Y, Pan J W, Hu B B, Wu C C, et al. DR-XGBoost: An XGBoost model for field-road segmentation based on dual feature extraction and recursive feature elimination. Int J Agric & Biol Eng, 2023; 2023; 16(3): 169–179.
DR-XGBoost:一种基于双特征提取和递归特征消除的野外道路分割XGBoost模型
农田道路分割是农业机械轨迹处理中的关键任务之一。为了提高野外道路分割的精度,本研究提出了一种基于双特征提取和递归特征消除的XGBoost模型DR-XGBoost。DR-XGBoost只接受少量农机轨迹特征作为输入。首先,该模型采用我们设计的双特征提取方法,快速扩展特征数量,然后利用时间窗和特征提取算子充分提取局部轨迹特征;其次,从模型分割效果的角度出发,采用递归特征消除算法消除冗余特征,减少模型训练的计算消耗。第三,训练XGBoost完成轨迹分割;为了评估DR-XGBoost的有效性,我们在一个真实的农业机械轨迹数据集上进行了一系列实验。该模型在数据集上实现了98.2%的Macro-F1得分,比之前的技术水平高出10.9%。DR-XGBoost的提出填补了农业机械轨迹特征提取的知识空白,为田间道路分割问题提供了一种合理有效的特征选择方案。关键词:轨迹分割,特征提取,递归特征消除,时间窗,XGBoost DOI: 10.25165/ j.j ijabe.20231603.8187引用本文:肖玉忠,莫国忠,熊晓燕,潘建伟,胡保斌,吴春春,等。DR-XGBoost:一种基于双特征提取和递归特征消除的野外道路分割XGBoost模型。农业与生物工程学报,2023;2023;16(3): 169 - 179。
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来源期刊
CiteScore
4.30
自引率
12.50%
发文量
88
审稿时长
24 weeks
期刊介绍: International Journal of Agricultural and Biological Engineering (IJABE, https://www.ijabe.org) is a peer reviewed open access international journal. IJABE, started in 2008, is a joint publication co-sponsored by US-based Association of Agricultural, Biological and Food Engineers (AOCABFE) and China-based Chinese Society of Agricultural Engineering (CSAE). The ISSN 1934-6344 and eISSN 1934-6352 numbers for both print and online IJABE have been registered in US. Now, Int. J. Agric. & Biol. Eng (IJABE) is published in both online and print version by Chinese Academy of Agricultural Engineering.
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