Injecting synthetic anomalies into data for benchmarking data quality monitoring algorithms

A system comprising:

• one or more processors;
• and
• a computer-readable medium storing instructions that are operable when executed by the one or more processors to perform operations comprising:
• identifying a base data set stored in a first location of a remote database system, the base data set including one or more sets of structured data;
• identifying a set of synthetic anomaly injection operations to apply to one or more portions of the base data set;
• submitting a set of instructions to the remote database system, wherein the set of instructions are configured to cause the remote database system to perform operations including:
• creating one or more entries in a lookup table, wherein the one or more entries represent the one or more portions of the base data set that are subject to the set of synthetic anomaly injection operations;
• and
• while the one or more entries are active, rerouting received queries attempting to access the one or more portions of the base data set to instead access modified base data, wherein the modified base data includes data resulting from applying the set of synthetic anomaly injection operations to the one or more portions of the base data set;
• and
• causing the remote database system to inactivate the one or more entries in the lookup table, wherein while the one or more entries are inactive, the remote database system ceases rerouting the received queries attempting to access the one or more portions of the base data set to instead access the modified base data.

A non-transitory computer-readable medium storing instructions that are operable when executed by a data-processing apparatus to perform operations comprising:

• identifying a base data set stored in a first location of a remote database system, the base data set including one or more sets of structured data;
• identifying a set of synthetic anomaly injection operations to apply to one or more portions of the base data set;
• submitting a set of instructions to the remote database system, wherein the set of instructions are configured to cause the remote database system to perform operations including:
• creating one or more entries in a lookup table, wherein the one or more entries represent the one or more portions of the base data set that are subject to the set of synthetic anomaly injection operations;
• and
• while the one or more entries are active, rerouting received queries attempting to access the one or more portions of the base data set to instead access modified base data, wherein the modified base data includes data resulting from applying the set of synthetic anomaly injection operations to the one or more portions of the base data set;
• and
• causing the remote database system to inactivate the one or more entries in the lookup table, wherein while the one or more entries are inactive, the remote database system ceases rerouting the received queries attempting to access the one or more portions of the base data set to instead access the modified base data.