In one embodiment of the present disclosure for solving the above-described problem, as a computer program stored in a computer-readable storage medium executable by one or more processors, the computer program allows the one or more processors to provide startup word recognition technology The following operations are performed, wherein the operations include: extracting one or more features corresponding to the voice data by using voice data of a user received through a user terminal as an input of a voice signal processing module, and extracting one or more features corresponding to the voice data. An operation of calculating a matching score between the voice data and a predetermined keyword by inputting a keyword recognition model, and a control signal for causing the user terminal to call a voice-based user interface based on the matching score, and transmitted to the user terminal. It may include an operation to determine that.
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