Automatic detection of crop root rows in paddy fields based on straight-line clustering algorithm and supervised learning method

2021 ◽  
Vol 211 ◽  
pp. 63-76
Author(s):  
Zenghong Ma ◽  
Zeyi Tao ◽  
Xiaoqiang Du ◽  
Yaxin Yu ◽  
Chanyu Wu
2020 ◽  
Author(s):  
Xu Zheng ◽  
Yan Song ◽  
Jie Yan ◽  
Li-Rong Dai ◽  
Ian McLoughlin ◽  
...  

2020 ◽  
Vol 15 ◽  
Author(s):  
Shuwen Zhang ◽  
Qiang Su ◽  
Qin Chen

Abstract: Major animal diseases pose a great threat to animal husbandry and human beings. With the deepening of globalization and the abundance of data resources, the prediction and analysis of animal diseases by using big data are becoming more and more important. The focus of machine learning is to make computers learn how to learn from data and use the learned experience to analyze and predict. Firstly, this paper introduces the animal epidemic situation and machine learning. Then it briefly introduces the application of machine learning in animal disease analysis and prediction. Machine learning is mainly divided into supervised learning and unsupervised learning. Supervised learning includes support vector machines, naive bayes, decision trees, random forests, logistic regression, artificial neural networks, deep learning, and AdaBoost. Unsupervised learning has maximum expectation algorithm, principal component analysis hierarchical clustering algorithm and maxent. Through the discussion of this paper, people have a clearer concept of machine learning and understand its application prospect in animal diseases.


Mathematics ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 779
Author(s):  
Ruriko Yoshida

A tropical ball is a ball defined by the tropical metric over the tropical projective torus. In this paper we show several properties of tropical balls over the tropical projective torus and also over the space of phylogenetic trees with a given set of leaf labels. Then we discuss its application to the K nearest neighbors (KNN) algorithm, a supervised learning method used to classify a high-dimensional vector into given categories by looking at a ball centered at the vector, which contains K vectors in the space.


2014 ◽  
Vol 144 ◽  
pp. 526-536 ◽  
Author(s):  
Jinling Wang ◽  
Ammar Belatreche ◽  
Liam Maguire ◽  
Thomas Martin McGinnity

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