Use of Machine-Learning Models in Creating Messages for Advocacy Campaigns

A method performed by a computer system having at least one processor and a memory, the method comprising, the computer system:

• operating a first computational model configured to output a score indicative of a requested action being performed by a recipient of a message;
• transmitting a plurality of messages to a plurality of message recipients, wherein each of the plurality of messages is transmitted by or on behalf of a respective sender and includes a request for a respective recipient to perform an action;
• for each message of the plurality of transmitted messages:
• determining an outcome of the request after transmission of the message;
• encoding a plurality of message characteristics of the message into a message feature vector;
• encoding a plurality of personal profile characteristics specific to the respective sender into a personal profile feature vector for the respective sender;
• and
• providing the outcome of the request, the message feature vector and the personal profile feature vector for the respective sender as a training input to the first computational model;
• receiving an instruction to send a new message to a target recipient by or on behalf of a respective sender, wherein the new message includes a request for the target recipient to perform a new action;
• creating a plurality of different sets of message characteristics, wherein each set of the plurality of different sets represents a combination of a plurality of possible message characteristics for the new message;
• encoding a plurality of personal profile characteristics specific to the respective sender of the new message into a personal profile feature vector for the respective sender of the new message;
• for each set of message characteristics of the plurality of different sets:
• encoding the set of message characteristics into a message feature vector;
• and
• in response to providing the message feature vector and the personal profile feature vector for the respective sender as an input to the first computational model, the first computational model outputting a score indicative of the new action being performed by the target recipient in response to receiving a message having the each set of message characteristics;
• selecting a set of message characteristics from the plurality of different sets based on the score output for each set;
• creating the new message based on the selected set of message characteristics;
• and
• sending the new message to the target recipient.