公开(公告)号：US12099806B2

公开(公告)日：2024-09-24

申请号：US17701137

申请日：2022-03-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xinde Li ,  Pei Li ,  Changyin Sun

IPC: G06F40/30 ,  G06F40/268 ,  G06F40/44 ,  G06N5/02 ,  G06N5/04

CPC classification number: G06F40/30 ,  G06F40/268 ,  G06F40/44 ,  G06N5/02 ,  G06N5/04

Abstract: The present disclosure discloses a place recognition method based on knowledge graph inference; and provides, on the basis of giving a knowledge graph construction method in the place field, a recognition method of general places that is based on knowledge graph inference and can integrate various heterogeneous environmental information, including the following steps: (1) extracting main clues such as the main items that make up the place, the produced events, and the spatial structure from various heterogeneous information, and describing these clues in natural language text; (2) screening the foregoing descriptions by using natural language processing methods, to form place description entities; (3) constructing a knowledge graph in the place field according to the occurrence frequencies of the description entities in an actual environment; and (4) implementing inference and classification based on the knowledge graph by using a Deep Neural Network (DNN), to give a final recognition result. The present disclosure improves the place recognition accuracy by means of knowledge graph inference, and greatly improves semantic interpretability in the place recognition process.