Impact score for ontology changes

A re-analysis system for assignments of terms to assets, comprising:

• one or more computer readable storage media storing program instructions and one or more processors which, in response to executing the program instructions, are configured to:
• detect a change associated with a term in a term ontology comprising a plurality of terms assigned to one or more assets, wherein the term ontology is stored in the one or more computer readable media as an ontology data structure comprising nodes representing terms and edges representing relationships between the terms, each node storing feature data for a corresponding term;
• determine at least one selected from a group consisting of:
• a Domain Feature Change Vector (DFCV) for a domain of the term ontology affected by the change, and a Term Feature Change Vector (TFCV) for a term affected by the change, wherein the DFCV and the TFCV are derived by traversing the ontology data structure to identify affected nodes and relationships;
• identify assets for the re-analysis of the assignments of terms, wherein each of the assets is associated with an impact score value that is determined based on at least one selected from a group consisting of:
• a scalar product of the DFCV and an assignment feature vector (AFV) of each term assigned to a respective one of the assets, and a scalar product of the TFCV and the AFV of each term assigned to a respective one of the assets;
• perform the re-analysis of the assignments of terms for the assets ordered by the impact score value until an associated impact score value is equal to or less than a threshold value;
• and
• update one or more nodes of the ontology data structure affected by the re-analysis to update one or more of the assignments of terms for the assets based on the impact score value.

A computer program product for a re-analysis of assignments of terms to assets, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions being executable by one or more computing systems or controllers to cause the one or more computing systems to:

• detect a change associated with a term in a term ontology comprising a plurality of terms assigned to one or more assets, wherein the term ontology is stored in a computer-readable memory as an ontology data structure comprising nodes representing terms and edges representing relationships between the terms, each node storing feature data for a corresponding term;
• determine at least one selected from a group consisting of:
• a Domain Feature Change Vector (DFCV) for a domain of the term ontology affected by the change, and a Term Feature Change Vector (TFCV) for a term affected by the change, wherein the DFCV and the TFCV are derived by traversing the ontology data structure to identify affected nodes and relationships;
• identify assets for the re-analysis of the assignments of terms, wherein each of the assets is associated with an impact score value that is determined based on at least one selected from a group consisting of:
• a scalar product of the DFCV and an assignment feature vector (AFV) of each term assigned to a respective one of the assets, and a scalar product of the TFCV and the AFV of each term assigned to a respective one of the assets;
• perform the re-analysis of the assignments of terms for the assets ordered by the impact score values until an associated impact score value is equal to or less than a threshold value;
• and
• update one or more nodes of the ontology data structure affected by the re-analysis to update one or more of the assignments of terms for the assets based on the impact score value.