Method and apparatus for deriving keywords based on technical document database

An apparatus, the apparatus comprising:

• a processor;
• a storage device configured to store a computer program;
• and
• a memory which is configured to load instructions related to the computer program to be executed by the processor,
• wherein, when executed, the computer program causes the processor to:
• search a technical document including a first data field, a second data field and a third data field based on search terms and search year ranges related to a technical field,
• generate a keyword set using the first data field, the second data field and the third data field of the searched technical document, wherein the first data field includes a title of the technical document, the second data field includes a summary of the technical document, and the third data field includes a plurality of keywords of the technical document, and wherein generating the keyword set comprises scoring the plurality of keywords included in the keyword set, and select, based on the scoring, a subset of the plurality of keywords as the keyword set,
• re-search the technical document related to the technical field, using the keyword set,
• score the re-searched technical document to derive a representative document representing the technical field, and
• derive a representative keyword representing the technical field, using the second data field included in the representative documents.

A tangible non-transitory computer readable medium that stores a computer program, wherein the computer program, when executed by a processor of a computing device, causes the computing device to perform a process including:

• searching a technical document including a first data field, a second data field and a third data field based on search terms and search year ranges related to a technical field;
• generating a keyword set using the first data field, the second data field and the third data field of the searched technical document, wherein the first data field includes a title of the technical document, the second data field includes a summary of the technical document, and the third data field includes a plurality of keywords of the technical document, and wherein generating the keyword set comprises scoring the plurality of keywords included in the keyword set, and selecting, based on the scoring, a subset the plurality of keywords as the keyword set;
• re-searching the technical document related to the technical field, using the keyword set;
• scoring the re-searched technical document to derive representative documents representing the technical field;
• and
• deriving a representative keyword representing the technical field, using the second data field included in the representative document.