MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE
Climate change and its effects are taking more importance nowadays; and glaciers are one of the most affected ecosystems by that, considering that the energy of Earth’s surface and its temperature may be directly related to glacier temporal changes. Then, the comprehension of glaciers behaviour, by...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2019-09-01
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| Series: | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W16/29/2019/isprs-archives-XLII-2-W16-29-2019.pdf |
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| author | V. Ayma V. Ayma C. Beltrán P. N. Happ G. A. O. P. Costa R. Q. Feitosa R. Q. Feitosa |
| author_facet | V. Ayma V. Ayma C. Beltrán P. N. Happ G. A. O. P. Costa R. Q. Feitosa R. Q. Feitosa |
| author_sort | V. Ayma |
| collection | DOAJ |
| description | Climate change and its effects are taking more importance nowadays; and glaciers are one of the most affected ecosystems by that, considering that the energy of Earth’s surface and its temperature may be directly related to glacier temporal changes. Then, the comprehension of glaciers behaviour, by its retreating or melting critical conditions, can be achieved by the analysis of Remote Sensing data, but considering the unprecedented volumes of information currently provided by satellites sensors, we can refer to this analysis as a big data problem. Machine learning techniques have the potential to improve the analysis of this type of data; however, most current machine learning algorithms are unable to properly process such huge volumes of data. In the attempt to overcome the computational limitations related to Remote Sensing Big Data analysis, we implemented the K-Means and Expectation Maximization algorithms, as distributed clustering solutions, exploiting the capabilities of cloud computing infrastructure for processing very large datasets. The solution was developed over the InterCloud Data Mining Package, which is a suite of distributed classification methods, previously employed in hyperspectral image analysis. In this work we extended the functionalities of that package, by making it able to process multispectral images using the aforementioned clustering algorithms. To validate our proposal, we analysed the Ausangate glacier, located on the Andes Mountains, in Peru, by mapping the changes in such environment through a multi-temporal Remote Sensing analysis. Our results and conclusions are focused on the thematic accuracy and the computational performance achieved by our proposed solution. Thematic accuracy was assessed by comparing the automatically detected glacier areas by the clustering approaches against the manually selected ground truth data. We compared the computational load involved in executing the clustering processes sequentially and in a distributed fashion, using a local mode and cluster configuration over a cloud computing infrastructure. |
| first_indexed | 2024-12-14T00:49:12Z |
| format | Article |
| id | doaj.art-cfc916e9bb364e0ab9c4a97a98a65cc6 |
| institution | Directory Open Access Journal |
| issn | 1682-1750 2194-9034 |
| language | English |
| last_indexed | 2024-12-14T00:49:12Z |
| publishDate | 2019-09-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| spelling | doaj.art-cfc916e9bb364e0ab9c4a97a98a65cc62022-12-21T23:23:58ZengCopernicus PublicationsThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences1682-17502194-90342019-09-01XLII-2-W16293410.5194/isprs-archives-XLII-2-W16-29-2019MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTUREV. Ayma0V. Ayma1C. Beltrán2P. N. Happ3G. A. O. P. Costa4R. Q. Feitosa5R. Q. Feitosa6Pontifical Catholic University of Peru, 1801 University Ave., Lima, PeruPeruvian Navy, 36 Marina Ave., Callao, PeruPontifical Catholic University of Peru, 1801 University Ave., Lima, PeruPontifical Catholic University of Rio de Janeiro, 225 Marquês de São Vicente St., Rio de Janeiro, BrazilVicente St., Rio de Janeiro, BrazilRio de Janeiro State University, 524 São Francisco Xavier St., Rio de Janeiro, BrazilPontifical Catholic University of Rio de Janeiro, 225 Marquês de São Vicente St., Rio de Janeiro, BrazilVicente St., Rio de Janeiro, BrazilRio de Janeiro State University, 524 São Francisco Xavier St., Rio de Janeiro, BrazilClimate change and its effects are taking more importance nowadays; and glaciers are one of the most affected ecosystems by that, considering that the energy of Earth’s surface and its temperature may be directly related to glacier temporal changes. Then, the comprehension of glaciers behaviour, by its retreating or melting critical conditions, can be achieved by the analysis of Remote Sensing data, but considering the unprecedented volumes of information currently provided by satellites sensors, we can refer to this analysis as a big data problem. Machine learning techniques have the potential to improve the analysis of this type of data; however, most current machine learning algorithms are unable to properly process such huge volumes of data. In the attempt to overcome the computational limitations related to Remote Sensing Big Data analysis, we implemented the K-Means and Expectation Maximization algorithms, as distributed clustering solutions, exploiting the capabilities of cloud computing infrastructure for processing very large datasets. The solution was developed over the InterCloud Data Mining Package, which is a suite of distributed classification methods, previously employed in hyperspectral image analysis. In this work we extended the functionalities of that package, by making it able to process multispectral images using the aforementioned clustering algorithms. To validate our proposal, we analysed the Ausangate glacier, located on the Andes Mountains, in Peru, by mapping the changes in such environment through a multi-temporal Remote Sensing analysis. Our results and conclusions are focused on the thematic accuracy and the computational performance achieved by our proposed solution. Thematic accuracy was assessed by comparing the automatically detected glacier areas by the clustering approaches against the manually selected ground truth data. We compared the computational load involved in executing the clustering processes sequentially and in a distributed fashion, using a local mode and cluster configuration over a cloud computing infrastructure.https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W16/29/2019/isprs-archives-XLII-2-W16-29-2019.pdf |
| spellingShingle | V. Ayma V. Ayma C. Beltrán P. N. Happ G. A. O. P. Costa R. Q. Feitosa R. Q. Feitosa MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| title | MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE |
| title_full | MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE |
| title_fullStr | MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE |
| title_full_unstemmed | MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE |
| title_short | MAPPING GLACIER CHANGES USING CLUSTERING TECHNIQUES ON CLOUD COMPUTING INFRASTRUCTURE |
| title_sort | mapping glacier changes using clustering techniques on cloud computing infrastructure |
| url | https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-2-W16/29/2019/isprs-archives-XLII-2-W16-29-2019.pdf |
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