Building data-secure group profiles

A system comprising:

• at least one processor;
• and
• at least one memory coupled to the at least one processor, wherein the at least one memory comprises at least one instruction that, when executed by the at least one processor, is capable of causing the at least one processor to:
• create a data set that includes a plurality of entity data records each comprising a plurality of attribute values;
• by applying a first data security technique to the data set, determine a first query term and a matching subset of the plurality of entity data records;
• apply a second data security technique different from the first data security technique to the matching subset;
• in response to output of the second data security technique satisfying a first noisy threshold, add the first query term to a set of query terms, wherein satisfying the first noisy threshold comprises comparing (i) noisy output generated by adding first noise to function output of at least the matching subset to (ii) a noisy threshold generated by adding second noise to a threshold value;
• apply a third data security technique different than the first and second data security techniques to the matching subset;
• in response to output of the third data security technique satisfying a second noisy threshold, expand the set of query terms to include a second query term;
• create a group profile using the expanded set of query terms;
• and
• perform a digital content distribution by matching the group profile to a content item.

At least one non-transitory computer-readable medium comprising at least one instruction that, when executed by at least one processor, is capable of causing the at least one processor to:

• create a data set that includes a plurality of entity data records each comprising a plurality of attribute values;
• by applying a first data security technique to the data set, determine a first query term and a matching subset of the plurality of entity data records;
• apply a second data security technique different from the first data security technique to the matching subset;
• in response to output of the second data security technique satisfying a first noisy threshold, add the first query term to a set of query terms, wherein satisfying the first noisy threshold comprises comparing (i) noisy output generated by adding first noise to function output of at least the matching subset to (ii) a noisy threshold generated by adding second noise to a threshold value;
• apply a third data security technique different than the first and second data security techniques to the matching subset;
• in response to output of the third data security technique satisfying a second noisy threshold, expand the set of query terms to include a second query term;
• create a group profile using the expanded set of query terms;
• and
• perform a digital content distribution by matching the group profile to a content item.