METHOD AND SERVER FOR PREDICTING STOCK PRICE FLUCTUATION

摘要

Provided are a method and system for predicting a stock price fluctuation. A system for predicting a stock price fluctuation according to an embodiment of the present invention comprises: a data collector and a preprocessor which collect news and KOSPI data, and which extract words from the collected news through removal of stop words and analysis of morphemes; a sentiment dictionary builder which selects sentiment-related words, which calculates sentiment values of the respective sentiment-related words, and which builds a sentiment dictionary in a stock domain required for prediction of a stock price; and a stock price fluctuation prediction model builder which combines a prediction model using the built sentiment dictionary with an ARIMA prediction model using the KOSPI data, and which predicts a fluctuation of a closing price for a following day relative to a stock price on a day.;COPYRIGHT KIPO 2017