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Second, the traditional personalized recommendation algorithms are studied and their advantages and disadvantages are analyzed. Finally, this paper focuses on the combination of knowledge graph and collaborative filtering recommendation algorithm. They are effective to solve the problem where [Formula: see text] value is difficult to be determined in the clustering process of traditional collaborative filtering recommendation algorithm as well as data sparsity and cold start, utilizing the ample semantic relation in knowledge graph. If we use RDF data, which is distributed by the E and P (Exploration and Development) database based on the petroleum E and P, to verify the validity of the algorithm, the result shows that collaborative filtering algorithm based on knowledge graph can build the users\u2019 potential intentions by knowledge graph. It is enlightening to query the information of users. In this way, it expands the mind of users to accomplish the goal of recommendation. In this paper, a collaborative filtering algorithm based on domain knowledge atlas is proposed. By using knowledge graph to effectively classify and describe domain knowledge, the problems are solved including clustering and the cold start in traditional collaborative filtering recommendation algorithm. The better recommendation effect has been achieved. <\/jats:p>","DOI":"10.1142\/s0218001420590338","type":"journal-article","created":{"date-parts":[[2019,11,13]],"date-time":"2019-11-13T08:01:34Z","timestamp":1573632094000},"page":"2059033","source":"Crossref","is-referenced-by-count":11,"title":["Personalized Knowledge Recommendation Based on Knowledge Graph in Petroleum Exploration and Development"],"prefix":"10.1142","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0841-6735","authenticated-orcid":false,"given":"Gang","family":"Huang","sequence":"first","affiliation":[{"name":"College of Computer and Information Technology, Northeast Petroleum University, DaQing, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Man","family":"Yuan","sequence":"additional","affiliation":[{"name":"College of Computer and Information Technology, Northeast Petroleum University, DaQing, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chun-Sheng","family":"Li","sequence":"additional","affiliation":[{"name":"College of Computer and Information Technology, Northeast Petroleum University, DaQing, P.\u00a0R.\u00a0China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yong-he","family":"Wei","sequence":"additional","affiliation":[{"name":"Management Training Center, JiBei Electric Power Limited Company, State Grid Corporation of China, P. 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