Tunable Algorithmic Segments

One or more computer-readable storage media comprising instructions that, when executed by a computing device, implement a marketing service configured to perform operations comprising:

• outputting a user interface having a representation of segment data generated based on analysis of audience data from one or more sources according to a look-alike model, the segment data indicative of individuals in the audience data that match one or more traits of a target segment defined for the look-alike model;
• exposing via the user interface one or more controls configured to enable adjustments to tuning parameters associated with the look-alike model to modify the segment data;
• obtaining input via the one or more controls to change at least one of the tuning parameters;
• and
• modifying the segment data based on the input that is obtained.

A computing device comprising:

• one or more modules implemented at least partially by hardware of the computing device, the one or more modules configured to perform operations including:
• obtaining a target audience definition indicative of one or more traits possessed by a target segment to use for analysis of audience data to discover a matching segment of individuals in a general audience possessing traits similar to the one or more traits of the target segment;
• ascertaining tuning parameters designated for the analysis including at least:
• an indication of a selected segmentation algorithm configured to compute scores for individuals in the general audience by a comparison of traits of the individuals in the general audience to the one or more traits possessed by the target segment;
• and
• a parameter to designate a reach versus accuracy setting for the analysis;
• applying the selected segmentation algorithm to the audience data to compute the scores;
• and
• forming the matching segment to achieve the designated reach versus accuracy setting based on the scores.