Electronic apparatus and controlling method thereof

A controlling method of an electronic apparatus, the controlling method comprising:

• based on identifying that a first voice sensed corresponds to a wake-up voice, converting a state of the electronic apparatus from a standby state to a wake-up state;
• based on a second voice being sensed while the state of the electronic apparatus is the wake-up state, identifying a first user query included in first voice data obtained based on the second voice sensed through a microphone of the electronic apparatus;
• performing a first operation corresponding to the first user query;
• identifying a predetermined query corresponding to the first user query;
• obtaining a query list comprising at least one query based on the predetermined query and user context information;
• identifying a relevance to the first user query for each of the at least one query of the query list based on the predetermined query and the user context information;
• identifying, from among the query list, a corresponding query having a maximum relevance to the first user query;
• identifying a second user query included in second voice data obtained based on a third voice sensed through the microphone;
• identifying a first semantic similarity between the second user query and the corresponding query having the maximum relevance;
• based on the first semantic similarity being greater than or equal to a predetermined value, performing a second operation corresponding to the second user query and maintaining the state of the electronic apparatus as the wake-up state;
• identifying a second semantic similarity between the second user query and the corresponding query;
• based on the second semantic similarity being greater than or equal to the predetermined value, performing the second operation corresponding to the second user query and maintaining the state of the electronic apparatus as the wake-up state;
• and
• based on the second semantic similarity being less than the predetermined value, changing the state of the electronic apparatus from the wake-up state to the standby state and preventing the performing of the second operation corresponding to the second user query.

A non-transitory computer readable recording medium including a program executes a controlling method of an electronic apparatus, the controlling method comprising:

• based on identifying that a first voice sensed corresponds to a wake-up voice, converting a state of the electronic apparatus from a standby state to a wake-up state;
• based on a second voice being sensed while the state of the electronic apparatus is the wake-up state, identifying a first user query included in first voice data obtained based on the second voice sensed through a microphone of the electronic apparatus;
• performing a first operation corresponding to the first user query;
• identifying a predetermined query corresponding to the first user query;
• obtaining a query list comprising at least one query based on the predetermined query and user context information;
• identifying a relevance to the first user query for each of the at least one query of the query list based on the predetermined query and the user context information;
• identifying, from among the query list, a corresponding query having a maximum relevance to the first user query;
• identifying a second user query included in second voice data obtained based on a third voice sensed through the microphone;
• identifying a semantic similarity between the second user query and the corresponding query having the maximum relevance;
• based on the semantic similarity between the second user query and the at least one query of the query list being greater than or equal to a predetermined value, performing a second operation corresponding to the second user query and maintaining the state of the electronic apparatus as the wake-up state;
• identifying a second semantic similarity between the second user query and the corresponding query;
• based on the second semantic similarity being greater than or equal to the predetermined value, performing the second operation corresponding to the second user query and maintain the state of the electronic apparatus as the wake-up state;
• and
• based on the second semantic similarity being less than the predetermined value, converting the state of the electronic apparatus from the wake-up state to the standby state and prevent performing the second operation corresponding to the second user query.