System, method, and recording medium for natural language learning

A natural language learning method, comprising:

• analyzing a corpus of sentences stored in a database to identify an internal structure of words in the corpus of sentences;
• creating a plurality of new words that comprise a combination of the internal structure of a word of the words in the corpus of sentences and the word;
• clustering the plurality of new words created by the creating that match into a plurality of cluster groups;
• filtering the plurality of cluster groups to create a partial set of each of the plurality of cluster groups;
• and
• performing word embedding processing on the partial set of each of the plurality of cluster groups to obtain vectors for new words.

A non-transitory computer-readable recording medium recording a natural language learning program, the program causing a computer to perform:

• analyzing a corpus of sentences stored in a database to identify an internal structure of words in the corpus of sentences;
• creating a plurality of new words that comprise a combination of the internal structure of a word of the words in the corpus of sentences and the word;
• clustering the plurality of new words created by the creating that match into a plurality of cluster groups;
• filtering the plurality of cluster groups to create a partial set of each of the plurality of cluster groups;
• and
• performing word embedding processing on the partial set of each of the plurality of cluster groups to obtain vectors for new words.