Innovation of Data Mining & Screening System under Big Data: Take a case as NIMBY

With the growing maturity of web crawler technology and the advent of the era of big data, when you want to study some problems, you can directly get all the data related to them through web crawlers and other means, but it is more important to mining and filter the data to get valuable data for the research content. This study which based on the word list of keywords uses CRN network to construct semantic distance table and TOPSIS evaluation system to sort data to make sure researchers can obtain quantitative screening data with research value and to provide researchers with scientific screening methods.