An Adaptive Learning System for English Vocabulary Using Machine Learning

Table 1

Glossary database.

Field	Type	The default value	Primary key or not
Serial number	Int	There is no	Is
Level	Int	NU11	No
Class number	Int	NU11	No
Difficulty value	Float	NU11	No
Vocabulary	Varchar	NU11	No
Paraphrase	Varchar	NU11	No
The phonetic symbol	Varchar	NU11	No
Run-on sentences	Varchar	NU11	No