Method, apparatus, and computer program product for categorizing multiple group-based communication messages

An apparatus for group-based communication message categorization, the apparatus comprising at least one processor and at least one non-transitory memory including program code, the at least one non-transitory memory and the program code configured to, with the at least one processor, cause the apparatus to:

• receive a channel message corpus representing multiple communication messages of a group-based communication channel, the multiple communication messages of the channel message corpus sharing a group-based communication channel identifier corresponding to the group-based communication channel;
• determine, using a conversation primitive identification engine coupled with the at least one processor, one or more conversation primitive identifiers for each of the multiple communication messages;
• identify one or more communication message segments of the multiple communication messages that share at least one common conversation primitive identifier of the one or more conversation primitive identifiers;
• and
• in response to identifying the one or more communication message segments that share at least one common conversation primitive identifier, group the one or more communication message segments that share the at least one common conversation primitive identifier into a conversation segment, wherein the conversation segment includes a topic associated with the conversation segment.