Pre-Process: Jdid-Dc-NFactor

• Description:
  This file includes information of Jdid-Dc-NFactor of all JDs in training set (MEDLINE).

• Input:
  • Ui-Jid-Jds.${NUM}.txt
  • jds.txt

• Java Files & Algorithm:
  • GenerateJdDcNFactor.java
  • Read in Journal Descriptors from jds.txt
  • Calculate dc for JDs
    • Read UI, JID, JDs from UiJidJds.${NUM}.txt
    • Update document count for all JDs
  • Calculate Nfactor
    • Calculate total and average document count for all JDs
    • avg. = total Dc for all JDs / num of JDs
    • Assign NFactor for all JDs
      • NFactor = avg./jdDc (if jdDc > avg.)
      • NFactor = 1.0 (otherwise)
  • Print out Jdid-Dc-NFactor

• Output file:
  • jdidDcNFactor.txt, used in Word-Jdid-Wc-Dc Table

    Jdid	document count	NFactor