The invention discloses an industrial chain generation method and
system based on
big data, and the method comprises the steps: designing a main structure of an industrial chain and a keyword table of each node, and determining the classification of the upstream, the middle and the downstream of the industrial chain, including a main node, a child node, a
branch node, a name of each node and a keyword contained in the node; multi-dimensional industrial data such as industry and commerce data, bidding and tendering, public opinions, patents and
software aboriginal information of enterprises are collected and acquired, and an enterprise basic
database is established;
primary screening of the uplink enterprises: screening the enterprises from the enterprise basic
database according to the industrial chain node keywords, and incorporating the enterprises into an alternative uplink enterprise
database; the enterprise upper chain evaluation
index system is used for evaluating the matching degree between dimension information such as the business scope, the technical achievement, the public opinion information and the bidding and tendering of the enterprise and the industrial chain node; selecting each node benchmark enterprise on an industrial chain according to industrial research, and calculating each uplink index of each benchmark enterprise; calculating a vector distance between the primarily screened selected enterprise and the benchmarking enterprise;
ranking the similarity calculation results in a descending order; according to the Pareto's law, the first 20% of enterprises are taken to be linked, and a complete industrial chain is constructed. The method comprises the following steps: collecting enterprise multi-dimensional data, constructing an industrial chain main body structure and each node keyword, screening to-be-linked enterprises according to keywords, establishing an uplink evaluation
index system, calculating vector distances between the to-be-linked enterprises and benchmarking enterprises, and determining an uplink enterprise mode according to vector distance
ranking to generate an industrial chain. The method is beneficial for improving the accuracy and efficiency of industrial chain generation, so that reference basis is provided for scientifically evaluating the industrial development level, making investment decisions of industrial development, making effective industrial policies and the like.