The invention relates to the technical field of
knowledge graph completion, provides an implicit relation
perception time sequence knowledge graph completion method based on dynamic embedding and self-attention, and aims to improve the
inference and completion capability of missing facts in a
time sequence knowledge graph. According to the method,
time evolution modeling, a graph neural network and
semantic similarity calculation are combined, and dynamic embedding representation fusing static, trend and periodic characteristics is constructed. Explicit structure information is extracted through a multilayer
relational graph convolutional network, and meanwhile, an implicit
semantic similarity relationship under synchronous and asynchronous time is introduced to construct a sparse semantic graph. Structural information and
semantic information are fused through GRU, multi-
time step features are aggregated by adopting a
time perception self-attention mechanism, and key
time information is highlighted. And finally, entity prediction is completed by using a ConvTransE decoder, and the model is optimized through
cross entropy loss. According to the method, a
static structure and implicit
semantics can be modeled at the same time, the
time sensitivity is enhanced, and the method is suitable for large-scale dynamic graph completion and has better reasoning ability and generalization performance.