A “User-Knowledge-Product” Co-Creation Cyberspace Model for Product Innovation

Table 3

Similarity calculation method [28].

Tree level position	Sense level position	Coefficient	Semantic similarity
Not in the same word forest tree	None
In the same word forest tree	Layer 2 branch
In the same word forest tree	Layer 3 branch
In the same word forest tree	Layer 4 branch
In the same word forest tree	Layer 5 branch