The Application Of Statistical Methods With Bp Networks In The Preparation Of The Lcd Tv Hedonic Price Index

In recent years, LCD TVs can be described as the rapid development of pre-trip, from the view of the development industry as a whole, increasing the speed of LCD TVs tend to IT models, technical features and price decline in the update cycle, are staggering. In view of LCD TVs in people's daily lives in an important position and its recent trend of rapid development, this author chose LCD television as a paper study. By reading a large number of related literature, the predecessors of the theoretical basis and empirical research methods, supported by China in 2009 between quarterly changes in the price of LCD TVs and its characteristics of the relationship between the quantitative analysis of a micro perspective, and on this basis, Analysis of trends in LCD TV pricesHas been on the hedonic price index studies have mostly been confined to the traditional parameter estimation method, in which the processing time effect in the model through a dummy variable that contains multiple high-order polynomials or time to achieve. The dummy variables can only describe discrete changes in price indices, such as selling off-season dummy variable method will not be able to provide high precision analysis. Especially when the time path is a highly non-linear, the polynomial rules become very complex and difficult to operate. For this reason, the use of neural network hedonic price model of the building, will feature variable indicators as neural network input, through the Matlab language program to measure the sales price of LCD TVs, and compared with the actual quotes to calculate the relative error, verify that the validity of the model. In addition, the calculation of linear function, logarithmic function, a linear logarithmic function and the log-linear function of four kinds of form, the hedonic price model has the relative error, comparing the pros and cons of different methods. The use of the estimated implicit price analysis of the performance characteristics of the selected degree of impact on prices, so that consumers understand the changes in prices of LCD TVs trends, and thus understand the LCD TV production and consumption changes in the law for government departments and LCD TV business to make science provide a reliable basis for decision-making.