DATA QUERYING SYSTEM, DATA QUERYING METHOD, COMPUTER PROGRAM PRODUCT, AND NON-TRANSITORY STORAGE MEDIUM

摘要

A database querying system, comprising an input interface unit configured to receive textual input and to convert the textual input into a textual data string; a sequencing unit configured to obtain at least one key phrase from the textual data string and to obtain for each of the at least one key phrase a set of all contiguous sequences of words of the respective key phrase; a classification network unit configured to access a semantic network for each of the contiguous sequences of words, wherein the classification network unit is configured to set a classification flag for the respective contiguous sequence of words, if the semantic network contains a link between the respective contiguous sequence of words and an entry in a predetermined classification database; a comparison unit configured to access a predetermined target database for each of the contiguous sequences of words, wherein the comparison unit is configured to set a target flag for the respective contiguous sequence of words, if the predetermined target database contains at least one entry matching the respective contiguous sequence of words; and an output interface unit configured to output at least one contiguous sequence of words and information relating to whether at least one of the respective target flag and the respective classification flag has been set. The disclosure relates further to a data querying method, a computer program product, and a non-transitory storage medium.