Computer-implemented technical support providing device and method

The invention discloses a computer-implemented technical support providing device and method. The device comprises an input processing unit, an entity relationship recognition unit, an iteration matching unit and an output processing unit, wherein the input processing unit is configured to receive input information of a user to obtain relevant texts; the entity relationship recognition unit is configured to recognize a plurality of entities and the relationship among the plurality of entities according to the relevant texts obtained by the input processing unit to structure a plurality of entity relationship models; the iteration matching unit is configured to compare the plurality of entity relationship models with a plurality of technical documents to set probability values for every entity relationship model and every technical document, the entity relationship model matched with more technical documents is provided with a higher probability value, and the technical documents matched with more entity relationship models is provided with a higher probability value; the output processing unit is configured to output the technical documents with the probability values higher than a threshold.