Systems and methods for indexing and searching health data

A computer-readable medium storing instructions that, when executed by a computing system comprising at least one memory and at least one processor, cause the computing system to perform a method comprising:

• receiving a user input including a search input with a plurality of events with at least one specified temporal relationship;
• generating index terms based on the plurality of events;
• combining the index terms into predicate search trees;
• combining two or more of the predicate search trees via Boolean operator(s);
• generating a multi-clause query based on the combined predicate search trees;
• and
• applying the multi-clause query to a corpus of target data to obtain a plurality of matching patient records.

A computing system for searching patient records, the computing comprising:

• at least one processor;
• at least one memory;
• a component configured to receive a search input including a plurality of events and one or more temporal constraints between events;
• a component configured to decompose the search input into a first set of logical operations and a second set of logical operations;
• a component configured to, based on the first set of logical operations, identify candidate patient records having the events specified in the search input;
• and
• a component configured to, based on the second set of logical operations, filter the candidate patient records to those patient records that satisfy the temporal constraints specified in the search input,
• wherein each of the components comprises computer-executable instructions stored in the at least one memory for execution by the computing system.

A method of generating an inverted index for patient records, the method comprising:

• receiving, at a health data platform, a set of patient records from one or more health systems;
• processing the set of patient records at the health data platform, wherein the processing includes converting the set of patient records into a common format;
• generating a plurality of index terms for each patient record;
• and
• storing the index terms and corresponding matching patient records in a posting list.