Abstract
Mobile phone carriers develop various marketing strategies to hold good customers, for example, by discounting service charge drastically or delivering discount coupon ticket for long-term users. But they have not stop outflowing customers perfectly yet.
By the way, mobile phone carriers have various types of transaction data on their database, but it is also fact that they cannot fully use those data yet because those data is vast and computer resource available to data analysis is limited. In this study, we pay attention to search word put into search engine and propose the way of forecasting cancellation of mobile phone contract based on search word.
