Patent ID: 11922129
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 11:
12. A computer program product comprising:
a computer readable storage device; and
program code embodied with the computer readable storage device, the program code executable by the processor to:
access candidate text;
extract a candidate pair of first and second phrases from the candidate text;
substitute the extracted first and second phrases into a plurality of cause-effect patterns to generate a plurality of variant sentences including the first and second phrases;
determine respective probabilities that the variant sentences are inferred from the candidate text;
calculate a statistical measure of the respective probabilities;
assess the calculated statistical measure to ascertain whether the first and second phrases possess a causal relationship or non-causal relationship to one another; and
populate a knowledge base with the candidate text including the first and second phrases possessing the causal relationship.