Semantic understanding method and apparatus, and device and storage medium

An electronic device, comprising:

• a memory,
• a processing device;
• and
• a computer program stored on the memory and executable on the processing device, wherein the computer program, when executed by the processing device, causes the processing device to:
• acquire, using a trained speech recognition model, a recognition character string matching with speech information;
• acquire, for each recognition character in the recognition character string, at least one entity vocabulary corresponding to the recognition character in an entity vocabulary library;
• and
• determine, based on a hit of each entity vocabulary to the recognition character string, a matched entity vocabulary as a semantic determining result of the speech information,
• wherein the computer program, when executed by the processing device, causes the processing device to:
• establish a descending index table matching with the entity vocabulary library, based on entity vocabularies in the entity vocabulary library, wherein the descending index table includes a plurality of key-value pairs, each of the key-value pairs includes a key name which is a character, and a value which is at least one entity vocabulary containing the character;
• and
• query the descending index table matching with the entity vocabulary library, and acquire the at least one entity vocabulary corresponding to the recognition character in the recognition character string.

A non-transitory storage medium containing computer executable instructions, wherein the instructions, when executed by a computer processor, cause the computer processor to

• acquire, using a trained speech recognition model, a recognition character string matching with speech information;
• acquire, for each recognition character in the recognition character string, at least one entity vocabulary corresponding to the recognition character in an entity vocabulary library;
• and
• determine, based on a hit of each entity vocabulary to the recognition character string, a matched entity vocabulary as a semantic determining result of the speech information,
• wherein the instructions, when executed by a computer processor, cause the computer processor to:
• establish a descending index table matching with the entity vocabulary library, based on entity vocabularies in the entity vocabulary library, wherein the descending index table includes a plurality of key-value pairs, each of the key-value pairs includes a key name which is a character, and a value which is at least one entity vocabulary containing the character;
• and
• query the descending index table matching with the entity vocabulary library, and acquire the at least one entity vocabulary corresponding to the recognition character in the recognition character string.