A Novel Sample Selection Strategy for Imbalanced Data of Biomedical Event Extraction with Joint Scoring Mechanism

Algorithm 1

Sample filter.

(1) Sample documents

(2) Generate sequence database DS

(3) Initialize

(4) for each  

(5)   LS =

(6)   Initialize parameter threshold and set of sentences ,

(7)    for each  

(8)    Initialize candidate entities and

candidate arguments , and then generate

(9)    for each  

(10)      if  , using Eq. (1)

(11)        Update

(12)     end for

(13)    end for

(14) end for

(15) return  ()