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As China's pillar industry, the property market has suffered a considerable impact in recent years, with a decline in turnover and many developers at risk of bankruptcy. As one of the most concerned factors for stakeholders, housing prices need to be predicted more objectively and accurately to minimize decision-making errors by developers and consumers. Many prediction models in recent years have been unfriendly to consumers due to technical difficulties, high data demand, and varying factors affecting house prices in different regions. A uniform model across the country cannot capture local differences accurately, so this study compares and analyses the fitting effects of multiple machine learning models using February 2024 new building data in Changsha as an example, aiming to provide consumers with a simple and practical reference for prediction methods. The modeling exploration applies several regression techniques based on machine learning algorithms, such as Stepwise regression, Robust regression, Lasso regression, Ridge regression, Ordinary Least Squares (OLS) regression, Extreme Gradient Boosted regression (XGBoost), and Random Forest (RF) regression. These algorithms are used to construct forecasting models, and the best-performing model is selected by conducting a comparative analysis of the forecasting errors obtained between these models. The research found that machine learning is a practical approach to property price prediction, with least squares regression and Lasso regression providing relatively more convincing results.
The Municipality of Üsküdar in Istanbul, Türkiye, hosted today World Cities Day 2023 under the theme “Financing sustainable urban future for all”. Over 1,000 participants representing 221 countries had registered for the event in-person and online, according to the UN Human Settlements Progaramme (UN-Habitat). In her remarks on the Day, UN-Habitat Executive Director Maimunah Mohd Sharif said that progress towards achieving sustainable and just development and the 17 Sustainable Development Goals (SDGs) had stalled. “Half of the world is now urban. There is no stopping this mega-trend. By adapting our cities and finding in them the resources and talent we need, we can upscale the solutions we need to ensure no one, and no place is left behind,” she said. Sourece from: https://news.un.org/en/story/2023/10/1143042 |
Prof. Mehmet Cetin
Kastamonu University,
Turkey