As the global demand for renewable energy increases,the photovoltaic(PV)industry,which is a vital component of clean energy,plays a crucial role in achieving energy transition and sustainable development goals.Consequ...As the global demand for renewable energy increases,the photovoltaic(PV)industry,which is a vital component of clean energy,plays a crucial role in achieving energy transition and sustainable development goals.Consequently,the PV industry has grown rapidly in recent years,leading to an expanded and increasingly sophisticated industrial chain.However,the effective assessment of the development of the PV industry is complicated by the extensiveness of the PV industrial chain.This paper presents a method for constructing a knowledge graph of the PV industry chain using enterprise bidding data,effectively coupling the product and supply networks.First,by leveraging relevant knowledge in the PV field,we employ two deep learning models,the BERT-BiLSTM-CRF model and an improved CasRel model,for entity and relationship extraction,respectively.Subsequently,entity-linking technology is applied to facilitate knowledge fusion.Finally,the Neo4j graph database is utilized for knowledge storage and graphical representation,comprehensively illustrating the technical process of constructing the PV industry chain knowledge graph.The knowledge graph of the PV industry chain facilitates a timely understanding of the industry’s overall status and development trends while identifying bottlenecks and risks within the chain.Furthermore,it can aid enterprises in devising more effective risk management strategies and countermeasures,continuously optimizing the industry chain structure,and promoting the sustainable development of the industry.展开更多
Solar energy is one of clean energies which has the most development and application prospect. And solar photovoltaic industry is the main force foe the development of new energy industry. This paper points out the ob...Solar energy is one of clean energies which has the most development and application prospect. And solar photovoltaic industry is the main force foe the development of new energy industry. This paper points out the obstacles which improves the international competitiveness of China＇ s photovoltaic industry based on the analysis of the three big indexes, namely the international competitiveness of photovoltaic industry IMS, TCD and RCI, and proposes the suggestion which enhances the competitive advantage of China＇ s solar photovoltaic industry.展开更多
基金supported by the National Natural Science Foundation of China under Grant Nos.72293563,72293565,and 72101051.
文摘As the global demand for renewable energy increases,the photovoltaic(PV)industry,which is a vital component of clean energy,plays a crucial role in achieving energy transition and sustainable development goals.Consequently,the PV industry has grown rapidly in recent years,leading to an expanded and increasingly sophisticated industrial chain.However,the effective assessment of the development of the PV industry is complicated by the extensiveness of the PV industrial chain.This paper presents a method for constructing a knowledge graph of the PV industry chain using enterprise bidding data,effectively coupling the product and supply networks.First,by leveraging relevant knowledge in the PV field,we employ two deep learning models,the BERT-BiLSTM-CRF model and an improved CasRel model,for entity and relationship extraction,respectively.Subsequently,entity-linking technology is applied to facilitate knowledge fusion.Finally,the Neo4j graph database is utilized for knowledge storage and graphical representation,comprehensively illustrating the technical process of constructing the PV industry chain knowledge graph.The knowledge graph of the PV industry chain facilitates a timely understanding of the industry’s overall status and development trends while identifying bottlenecks and risks within the chain.Furthermore,it can aid enterprises in devising more effective risk management strategies and countermeasures,continuously optimizing the industry chain structure,and promoting the sustainable development of the industry.
文摘Solar energy is one of clean energies which has the most development and application prospect. And solar photovoltaic industry is the main force foe the development of new energy industry. This paper points out the obstacles which improves the international competitiveness of China＇ s photovoltaic industry based on the analysis of the three big indexes, namely the international competitiveness of photovoltaic industry IMS, TCD and RCI, and proposes the suggestion which enhances the competitive advantage of China＇ s solar photovoltaic industry.
