3 results about "Event propagation" patented technology

The application relates to the field of event propagation path analysis methods, discloses an event propagation path analysis method based on RAG retrieval and information extraction technology, and discloses an event propagation path analysis method and system based on RAG retrieval and information extraction technology.The method first constructs a standardized data pool containing unique content fingerprints, realizes data deduplication and tracing by using SimHash; then constructs an exclusive RAG vector knowledge base, converts the seed context into an initial query vector; performs iterative retrieval, extracts propagation triples by using a model, and converts new entities into query vectors to trigger multi-hop retrieval to mine implicit correlations; merges nodes by using co-reference resolution and constructs a time-series directed graph; and finally calculates node centrality and vector semantic offset.The application solves the problems of propagation path breakage and content alienation recognition by iterative retrieval and semantic quantitative analysis, and realizes accurate analysis of event evolution.

This application provides a method and system for campus security situation assessment and early warning based on multi-source data fusion, relating to the field of campus security management technology. First, it collects multi-source data streams from campus video surveillance, IoT sensors, information system logs, and access control systems, parsing out security-related event fragments. Then, it matches and associates these security-related event fragments with a pre-built campus event knowledge base to construct a campus event network diagram. Based on this campus event network diagram, it drives simulation and constraint-based inference models to perform event propagation inferences. The fusion results generate a set of snapshots of inference scenarios. The snapshots are processed to generate representative future security scenarios and trace key event fragment sequences. Based on these, a set of campus security early warning and response instructions is generated. This invention can comprehensively and accurately assess the campus security situation and provide timely early warnings.

The application discloses a precise prediction and multi-scene cooperative control system for container truck arrival time sequence, and relates to the technical field of port logistics scheduling. The system comprises an event propagation module, a time delay processing module, an inter-chain constraint module, an archive self-correction module and a deduction control module. The event propagation module constructs a causal propagation network and triggers associated event concomitant time delay. The time delay processing module performs non-accumulative logical operation on multiple time delays with causal correlation or time overlap based on a time delay fusion rule set. The inter-chain constraint module maintains a set of conditional constraint relationships between event chains. The archive self-correction module maintains an individual logical archive composed of logical state bits for each transportation unit, dynamically adjusts the logical state bits and ignores misjudgment event chains. The deduction control module obtains the individual logical archive, performs conditional verification with the logical state bits in deduction, executes inter-chain constraint rules and generates a time sequence prediction result.