Research And Development Of Batch Valuation System Based On Hedonic Model

Information construction is an important part of land and resources management,and it is also one of the effective ways to promote efficient land management.It is of practical significance to study the research and design of bulk valuation system in order to adjust the land valuation from the perspective of large data and cloud platform construction.This paper from the background and related concepts,summarizes the related principle of using automatic assessment,including the relevant technologies of application software system,the theoretical knowledge of Hedonic model used in the system are summarized.From the analysis of the system economy and the feasibility of technical realization,the system is proved to be practical,and the requirements of the whole system need to be analyzed,and the system security is put forward.The basic architecture and specific implementation of the system are introduced.The database objects in the system are enumerated,and the design of each function template is described in detail.The code implementation of each function module,the internal process decomposition of some important functions are introduced,and the system API is explained and so on.Show user management,automatic evaluation system log,data acquisition function,sorting function,case feature factors standardized function,community rating and price relations,evaluation model,analysis and assessment of the price of housing to modify the query and database backup function operation interface.The real estate price character method,the data of case factors were normalized by linear regression algorithm to obtain the price model,and through the community rating and establish the price relationship between regions such as auxiliary way,meet the automatic evaluation target of the whole city.Through this study,it is also clear that the quantity and quality of the data directly determine the accuracy of the system assessment results,so in the data collection process need to prepare a variety of technical measures in advance to avoid the problems encountered in the collection,In addition to the rules in the process of making the system automatically set up outside the manual also set up to protect the reliability of the data.In the process of standardization of housing price characteristics,it is necessary to formulate different scoring rules according to different types of characteristic factors,so as to obtain a reasonable price model.In this paper,the realization of the system and display research,pointed out that the call to the high German map API to obtain the distance value,the case of data automatic cleaning,automatic data and manual finishing,factor selection template selection and the system application layer function API Interface definition and so on to achieve the way and process,and shows the implementation of some of the page effect.