US Patent 11183306 Duplicate case recommendation engine for pharmacovigilance

Implementations of the present disclosure include receiving a document including data representative of an adverse event, providing a case including a set of fields, each field being populated with a value, querying a safety system based on a query that includes values of the case, receiving a sparse matrix based on query results responsive to the query, the sparse matrix including two or more vectors, each vector of the two or more vectors representing a historical case score, for each historical case, determining a score based on a respective vector of the two or more vectors and an input vector representative of the case, each score representing a degree of duplicity between the case and a respective historical case, and providing historical cases for display to a user, the historical cases including the two or more historical cases in rank order based on respective scores.