Computing device and method of classifying category of data

A method of operating a computing device, the method comprising:

• identifying a classification system of a category of data comprising a classification criterion of the category of the data and a plurality of keywords;
• obtaining data comprising at least one sentence;
• and
• determining at least one category with respect to the at least one sentence of the data based on the classification system of the category of the data using a neural network that performs classification by unsupervised learning.

A non-transitory computer-readable recording medium storing one or more programs, which, when executed by one or more processors of a computing device, cause the computing device to perform operations comprising:

• identifying a classification system of a category of data comprising a classification criterion of the category of the data and a plurality of keywords;
• obtaining data comprising at least one sentence;
• and
• determining at least one category with respect to the at least one sentence of the data based on the classification system of the category of the data using a neural network that performs classification by unsupervised learning.