Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge

The existence of informal settlements in Riyadh City, the Kingdom of Saudi Arabia (KSA), has given rise to some urban planning issues. To provide improvements to mapping and planning processes, the current study aims to evaluate and characterize informal settlements within the city using object-base...

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Main Authors: Alrasheedi, Khlood, Dewan, Ashraf, El-Mowafy, Ahmed
Format: Conference Paper
Published: 2023
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/93514
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author Alrasheedi, Khlood
Dewan, Ashraf
El-Mowafy, Ahmed
author_facet Alrasheedi, Khlood
Dewan, Ashraf
El-Mowafy, Ahmed
author_sort Alrasheedi, Khlood
building Curtin Institutional Repository
collection Online Access
description The existence of informal settlements in Riyadh City, the Kingdom of Saudi Arabia (KSA), has given rise to some urban planning issues. To provide improvements to mapping and planning processes, the current study aims to evaluate and characterize informal settlements within the city using object-based machine learning (ML) techniques (specifically, Random Forest (RF) and Support Vector Machine (SVM)), expert knowledge (EK) and satellite data. An examination of four defined locales has produced a comprehensive, local, informal settlement ontology. Four main categories (shape, geometry, texture, and pattern) were used to build the ontological framework. Expert local knowledge was employed to produce a ruleset to accurately identify and map these areas. Specific indicators identified by the specialists were used in a combined object-based ML and image analysis (OBIA) approach, with high-resolution worldview-3 imagery used as input data. Results demonstrated that combining EK and ML with remotely sensed data can efficiently, effectively and accurately distinguish informal settlement areas. This work has shown that an object-based ML technique (RF), in combination with EK about important local environment indicators, provides a useful method for mapping informal settlements.
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spelling curtin-20.500.11937-935142023-11-07T07:00:42Z Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge Alrasheedi, Khlood Dewan, Ashraf El-Mowafy, Ahmed Mapping; GIS, Informal settlements, SA The existence of informal settlements in Riyadh City, the Kingdom of Saudi Arabia (KSA), has given rise to some urban planning issues. To provide improvements to mapping and planning processes, the current study aims to evaluate and characterize informal settlements within the city using object-based machine learning (ML) techniques (specifically, Random Forest (RF) and Support Vector Machine (SVM)), expert knowledge (EK) and satellite data. An examination of four defined locales has produced a comprehensive, local, informal settlement ontology. Four main categories (shape, geometry, texture, and pattern) were used to build the ontological framework. Expert local knowledge was employed to produce a ruleset to accurately identify and map these areas. Specific indicators identified by the specialists were used in a combined object-based ML and image analysis (OBIA) approach, with high-resolution worldview-3 imagery used as input data. Results demonstrated that combining EK and ML with remotely sensed data can efficiently, effectively and accurately distinguish informal settlement areas. This work has shown that an object-based ML technique (RF), in combination with EK about important local environment indicators, provides a useful method for mapping informal settlements. 2023 Conference Paper http://hdl.handle.net/20.500.11937/93514 fulltext
spellingShingle Mapping; GIS, Informal settlements, SA
Alrasheedi, Khlood
Dewan, Ashraf
El-Mowafy, Ahmed
Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title_full Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title_fullStr Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title_full_unstemmed Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title_short Mapping Informal Settlements Using Machine Learning Techniques, Object-Based Image Analysis and local Knowledge
title_sort mapping informal settlements using machine learning techniques, object-based image analysis and local knowledge
topic Mapping; GIS, Informal settlements, SA
url http://hdl.handle.net/20.500.11937/93514