METHOD, SYSTEM AND COMPUTER-READABLE RECORDING MEDIUM FOR SELECTING AND PROVIDING RELATED SEARCH KEYWORD BASED ON PLURAL SEARCH KEYWORDS RECEIVED IN SEQUENCE FROM USER TERMINAL

摘要

PURPOSE: A method to extract and provide a linkage search keyword based on a plurality of search keywords successively received from a user terminal device, a system, and a computer-readable recording medium are provided to improve linkage search keyword availability by offering a more suitable linkage search keyword to a user. CONSTITUTION: A search keyword receiver(210) successively receives a plurality of search keywords from a user terminal. A related search keyword extractor(220) extracts a linkage search keyword related to a part of a search keyword, including the recently received search keywords. A related search keyword provider(230) transmits the extracted linkage search keyword to a user terminal. A linkage search keyword score output unit calculates a correlation score with the recently received search keyword and with a remaining search keyword among at least some of the search keywords.