System and method for improved spare part search for maintenance services using topic modelling

A non-transitory computer readable medium storing instructions executable by at least one electronic processor to perform a recommendation method for recommending parts for replacement during maintenance of a device currently under maintenance, the recommendation method including:

• receiving a text query relating to the maintenance of the device currently under maintenance via a user interface device;
• querying a knowledge base of maintenance cases for devices under maintenance wherein the maintenance cases have associated replaced part identifiers using the text query to retrieve a ranked list of maintenance cases relating to the text query;
• performing topic modeling on the maintenance cases of the ranked list of maintenance cases to group the maintenance cases into N topics, where N is an integer greater than or equal to two;
• for each topic, ranking the replaced part identifiers associated to the maintenance cases grouped into that topic to generate a ranked replaced part identifiers list for that topic;
• displaying summarizations of the N topics on the display of the user interface and receiving a selection of a selected topic of the N topics via the user interface device;
• and
• displaying a list of recommended parts for replacement comprising at least a top portion of the ranked replaced part identifiers list for the selected topic on a display of the user interface device.

A method for recommending parts for replacement during maintenance of a device currently under maintenance, the recommendation method including:

• receiving a text query relating to the maintenance of the device currently under maintenance via a user interface device;
• querying a knowledge base maintenance cases for devices under maintenance wherein the maintenance cases have associated replaced part identifiers using the text query to retrieve a ranked list of maintenance cases relating to the text query;
• performing topic modeling on the maintenance cases of the ranked list of maintenance cases to group the maintenance cases into N topics, where N is an integer greater than or equal to two;
• for each topic, ranking the replaced part identifiers associated to the maintenance cases grouped into that topic to generate a ranked replaced part identifiers list for that topic;
• displaying summarizations of the N topics on the display of the user interface and receiving a selection of a selected topic of the N topics via the user interface device;
• and
• displaying a list of recommended parts for replacement comprising at least a top portion of the ranked replaced part identifiers list for the selected topic on a display of the user interface device;
• wherein the displaying of the list of recommended parts for replacement is included in a parts ordering user interface presented on the user interface device, and the method further includes:
• receive a selection of one or more part identifiers via the parts ordering user interface and to connect via an electronic network with a parts ordering system to order one or more parts corresponding to the selected one or more part identifiers.