Methods and systems for recommending dialogue sticker based on similar situation detection

A non-transitory computer readable medium storing one or more sequences of pattern data for recommending a dialogue sticker by use of a server that is connected to a database, a first user terminal and a second user terminal through a network and relays an utterance inputted to a messenger between the first user terminal and the second user terminal, the utterance including at least one of a text and an image, wherein execution of the one or more sequences of the pattern data by one or more processors causes the one or more processors to perform the steps of:

• generating a dialogue situation information database that includes multiple situations, each of the situations including a plurality of pairs that each include an utterance and a sticker, the utterances in each of the situations including a plurality of contiguous utterances from two terminals;
• generating dialogue situation information based on based on utterances that include a last utterance of the first user terminal and a last utterance of the second user terminal;
• retrieving a candidate situation having a most similar context as the generated dialogue situation information from the dialogue situation information database;
• determining whether the first user terminal is in a speaker utterance situation or a response utterance situation;
• retrieving, from the candidate situation, a pair that includes a speaker utterance when the first user terminal is in the speaker utterance situation and retrieving, from the candidate situation, a pair that includes a response utterance when the first user terminal is in the response utterance situation;
• and
• providing the sticker in the retrieved pair on a display device of the first user terminal.