Information provision device

An information provision device for processing user query data received from a user terminal, comprising:

• a processor;
• and
• a memory operatively coupled to the processor,
• wherein the memory stores instructions that, when executed, cause the processor to at least:
• receive the user query data;
• classify a type of the user query data by using a first language model based at least in part on selecting between a first type, a second type, and a third type, the first type corresponding to a database inquiry type, the second type corresponding to a document-based query type, and the third type corresponding to a pre-trained language model type, the pre-trained language model type associated with reliance on pre-trained data of the first language model;
• generate, based at least in part on the classified type being either the first type or the second type, a target prompt being at least one of:
• a first prompt requesting conversion of the user query data into structured data, or a second prompt requesting identification of information related to the user query data based at least in part on context data, wherein a generation scheme of the target prompt being the first prompt or the second prompt is dependent on the classified type being the first type or the second type, respectively;
• input the target prompt to a second language model;
• identify few-shot data related to the user query data whose input frequency is greater than or equal to a reference number of times;
• train the second language model based at least in part on the few-shot data;
• receive response data transmitted from the second language model, the response data corresponding to the user query data;
• display the response data to a user interface of the user terminal;
• and
• retrain the second language model based at least in part on the response data and the user query data to improve accuracy of future response data generated by the second language model.