標題: | Clustering Time Series Data by SOM for the Optimal Hedge Ratio Estimation |
作者: | Hsu, Yu-Chia Chen, An-Pin 資訊管理與財務金融系 註:原資管所+財金所 Department of Information Management and Finance |
公開日期: | 2008 |
摘要: | The fat-tailed and leptokurtic properties observed in most financial asset return series would cause the inaccuracy of hedge ratio estimation because most traditional statistics approaches are based on the assumption of normal distribution. In this study, a novel approach is proposed using self-organizing map (SOM, also called Kohonen's Self-Organizing Feature Map) for time series data clustering and similar pattern recognition to improve the optimal hedge ratio (OHR) estimation. Five SOM-based models (considering the weight for averaging and the interval for data sampling) and two traditional models (ordinary least square method and naive hedge) were compared in Taiwan stock market hedging. The experiment demonstrates the feasibility of applying SOM, and the empirical results show that SOM approach provides a useful alternative to the OHR estimation. |
URI: | http://hdl.handle.net/11536/1375 http://dx.doi.org/10.1109/ICCIT.2008.408 |
ISBN: | 978-0-7695-3407-7 |
DOI: | 10.1109/ICCIT.2008.408 |
期刊: | Third 2008 International Conference on Convergence and Hybrid Information Technology, Vol 2, Proceedings |
起始頁: | 1164 |
結束頁: | 1169 |
顯示於類別: | 會議論文 |