Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection
Locality preserving projection (LPP) retains only partial information, and category information of samples is not considered, which causes misclassification of feature extraction. An improved locality preserving projection algorithm is proposed to optimize the extraction of growth characteristics. F...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2014/809597 |
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| _version_ | 1849468893316251648 |
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| author | Jia Dongyao Hu Po Zou Shengxiong |
| author_facet | Jia Dongyao Hu Po Zou Shengxiong |
| author_sort | Jia Dongyao |
| collection | DOAJ |
| description | Locality preserving projection (LPP) retains only partial information, and category information of samples is not considered, which causes misclassification of feature extraction. An improved locality preserving projection algorithm is proposed to optimize the extraction of growth characteristics. Firstly, preliminary dimensionality reduction of sample data is constructed by using two-dimensional principal component analysis (2DPCA) to retain the spatial information. Then, two optimized subgraphs are defined to describe the neighborhood relation between different categories of data. Finally, feature parameters set are obtained to extract local information of samples by improved LPP algorithm. The experiments show that the improved LPP algorithm has good adaptability, and the highest SVM classification accuracy rate of this method can reach more than 96%. Compared with other methods, the improved LPP has superior optimized performance in terms of multidimensional data analysis and optimization. |
| format | Article |
| id | doaj-art-ff2a306ca2eb4fd3940cfb06a457081e |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-ff2a306ca2eb4fd3940cfb06a457081e2025-08-20T03:25:42ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/809597809597Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving ProjectionJia Dongyao0Hu Po1Zou Shengxiong2Advanced Control Systems Laboratory, School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaAdvanced Control Systems Laboratory, School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaAdvanced Control Systems Laboratory, School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, ChinaLocality preserving projection (LPP) retains only partial information, and category information of samples is not considered, which causes misclassification of feature extraction. An improved locality preserving projection algorithm is proposed to optimize the extraction of growth characteristics. Firstly, preliminary dimensionality reduction of sample data is constructed by using two-dimensional principal component analysis (2DPCA) to retain the spatial information. Then, two optimized subgraphs are defined to describe the neighborhood relation between different categories of data. Finally, feature parameters set are obtained to extract local information of samples by improved LPP algorithm. The experiments show that the improved LPP algorithm has good adaptability, and the highest SVM classification accuracy rate of this method can reach more than 96%. Compared with other methods, the improved LPP has superior optimized performance in terms of multidimensional data analysis and optimization.http://dx.doi.org/10.1155/2014/809597 |
| spellingShingle | Jia Dongyao Hu Po Zou Shengxiong Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection Journal of Applied Mathematics |
| title | Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection |
| title_full | Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection |
| title_fullStr | Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection |
| title_full_unstemmed | Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection |
| title_short | Optimization Method for Crop Growth Characteristics Based on Improved Locality Preserving Projection |
| title_sort | optimization method for crop growth characteristics based on improved locality preserving projection |
| url | http://dx.doi.org/10.1155/2014/809597 |
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