Literature information analyzer and literature information analysis method

摘要

PPROBLEM TO BE SOLVED: To provide a map with improved handleability by predicting a technological trend. PSOLUTION: The document information analyzer 1 is provided with a map control part 10, a prediction part 20 and an information storage part 30. The map control part 10 reads document information matched with a retrieval condition from the information storage part 30, performs prescribed analysis and thus generates the map 100 having a reference map graphic M0. The prediction part 20 makes a map graphic M-n indicating the past state of the reference map graphic M0 be generated and predicts a future map graphic M+n on the basis of the change of a centroid position from the past map graphic M-n to the reference map graphic M0 or the like. As a result, the map graphics M-N, M0 and M+N of respective stages from the past through the present to the future are superimposed and displayed on the map 100. PCOPYRIGHT: (C)2007,JPO&INPIT