Leveraging a Joint learning Model to Extract Mixture Symptom Mentions from Traditional Chinese Medicine Clinical Notes

Table 2

The frequency at which the entity is involved in relations.

Frequency at which the entity is involved in relations	Counts	Percentage
0	4,706	6.456%
1	56,046	76.886%
2	10,387	14.249%
3	1,440	1.975%
4	241	0.331%
5	65	0.089%
6	7	0.010%
7	3	0.004%