Title
An Extended Semi-Supervised Regression Approach with Co-Training and Geographical Weighted Regression: A Case Study of Housing Prices in Beijing
Abstract
This paper proposes an extended semi-supervised regression approach to enhance the prediction accuracy of housing prices within the geographical information science field. The method, referred to as co-training geographical weighted regression (COGWR), aims to fully utilize the positive aspects of both the geographical weighted regression (GWR) method and the semi-supervised learning paradigm. Housing prices in Beijing are assessed to validate the feasibility of the proposed model. The COGWR model demonstrated a better goodness-of-fit than the GWR when housing price data were limited because a COGWR is able to effectively absorb no-price data with explanatory variables into its learning by considering spatial variations and nonstationarity that may introduce significant biases into housing prices. This result demonstrates that a semisupervised geographic weighted regression may be effectively used to predict housing prices.
Year
DOI
Venue
2016
10.3390/ijgi5010004
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
Keywords
Field
DocType
semi-supervised regression,geographical weighted regression,spatial nonstationarity,housing prices
Econometrics,Geographic information system,Regression,Unit-weighted regression,Co-training,Geography,Beijing
Journal
Volume
Issue
Citations 
5
1
0
PageRank 
References 
Authors
0.34
13
4
Name
Order
Citations
PageRank
Yi Yang110.72
Jiping Liu2116.00
Shenghua Xu300.34
Yangyang Zhao4529.46