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3 results about "Strongly connected component" patented technology

In the mathematical theory of directed graphs, a graph is said to be strongly connected or diconnected if every vertex is reachable from every other vertex. The strongly connected components or diconnected components of an arbitrary directed graph form a partition into subgraphs that are themselves strongly connected. It is possible to test the strong connectivity of a graph, or to find its strongly connected components, in linear time (that is, Θ(V+E)).

A multi-agent orchestration execution method supporting complex cyclic graph structure

PendingCN122285214AExecution planAbstraction layer
This invention relates to a multi-agent orchestration and execution method supporting complex cyclic graph structures, comprising: S1: receiving workflow configuration and constructing a directed graph data structure; S2: performing a depth-first search traversal on the directed graph data structure, detecting and outputting strongly connected components in the directed graph data structure; S3: abstracting strongly connected components containing multiple nodes into super nodes, and keeping single-node strongly connected components as ordinary nodes, thereby constructing a directed acyclic graph containing super nodes; S4: performing topological sorting on the directed acyclic graph to generate a hierarchical execution plan containing multiple execution layers; S5: scheduling execution items according to the hierarchical execution plan, and when an execution item is the super node, starting a loop executor for iterative execution. This method, by constructing a multi-layered technical system, integrates graph algorithm innovation, unified context management, abstraction layer design, metadata-driven techniques, etc., to achieve automated orchestration and execution of multi-agent workflows supporting cyclic graph structures.
Owner:SHANGHAI JIAOTONG UNIV

A simultaneous equation simulation block solving method for process industry

The present application relates to the field of chemical process simulation, and particularly relates to a simultaneous equation simulation block solving method for process industry. The method comprises the following steps: extracting equations in an activated state and variables in an unfixed state from a chemical process model to form an original equation and variable set to be solved; converting the equation and variable set into a graph data structure reflecting system dependency according to a preset block strategy; using a strongly connected component identification algorithm to traverse the graph data structure to obtain a strongly connected component set, each strongly connected component in the strongly connected component set corresponding to a sub-equation block in the process equation; determining a solving order of the sub-equation blocks according to the dependency of the sub-equation blocks; solving each sub-equation block according to the solving order of the sub-equation blocks; and collecting the solving results of each sub-equation block to obtain a global solution of the complete chemical process model.
Owner:EAST CHINA UNIV OF SCI & TECH

Method for river network grading and automatic recognition of river topological relationship based on graph theory

The application discloses a river network grading and river topological relation automatic identification method based on graph theory, and relates to the technical field of hydrological geographic information. The method comprises the following steps: acquiring vector river network, key points and DEM data of a target basin and cleaning; constructing an initial river network graph model based on line element connection relation; fusing DEM terrain evidence and graph theory connection characteristics, constructing and solving a global potential field equation containing terrain driving and boundary constraint, calculating the flow direction potential attribute of all network nodes to determine the flow direction relation; identifying topological abnormal structures such as strong connected components in the network based on the flow direction relation, performing breaking treatment by using direction confidence, and generating a loop-free directed network structure; performing river grade division based on topological transfer rules, and associating the key points to the river network skeleton. The application solves the problems of difficult flow direction identification in plain micro-landform areas and the problem that complex loops cannot be graded by solving and optimizing the global potential field, and realizes automatic construction of the river network topology.
Owner:NANJING HYDRAULIC RES INST