Patent ID: 11953878
Assignee: TETRA LAVAL HOLDINGS & FINANCE S.A.
Field: Control (Instruments)
Classification: CPC G | IPC G

Claim 3:
4. The method according to claim 3, wherein the determining the weighted term frequencies (WF1, WF2) comprises:
determining a sum (D) of the occurrences of respective segmented word (s1, s2, . . . , si) in the first and second reference term frequencies (TF1, TF2),
determining an inverse frequency (ID) as the inverse of said sum (1/D),
determining a product (ID*TF1, ID*TF2) of the inverse frequency (ID) and the first and second reference term frequencies (TF1, TF2),
determining the weighted term frequencies (WF1, WF2) based on a difference between the occurrence of the segmented words (s1, s2, . . . , si) in said product (ID*TF1, ID*TF2).