[IEEE 2012 Joint Conf of 22nd Int'l Workshop on Software Measurement and the 7th Int'l Conference on Software Process and Product Measurement (IWSM-MENSURA) - Assisi, Italy (2012.10.17-2012.10.19)] 2012 Joint Conference of the 22nd International Workshop on Software Measurement and the 2012 Seventh International Conference on Software Process and Product Measurement - The Effects of Moving Windows to Software Estimation: Comparative Study on Linear Regression and Estimation by Analogy