noun which may take the genitive case particle 'no'
empirical; from experience
Used to indicate that a statement or judgment is based on personal or practical experience rather than theory. Often appears in phrases like 経験上では or 経験上の知識.
経験上、朝の方が集中できる。
From experience, I can concentrate better in the morning.
それは経験上の知識に過ぎない。
That is nothing more than empirical knowledge.
Compound of 経験 (experience) and 上 (from the viewpoint of).