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This paper proposes improved density peaks clustering based on natural neighbor expanded group (DPC-NNEG). The cores of the proposed algorithm contain two parts: (1) define natural neighbor expanded (NNE) and natural neighbor expanded group (NNEG) and (2) divide all NNEGs into a goal number of sets as the final clustering result, according to the closeness degree of NNEGs. At the same time, the paper provides the measurement of the closeness degree. We compared the state of the art with our proposal in public datasets, including several complex and real datasets. Experiments show the effectiveness and robustness of the proposed algorithm.<\/jats:p>","DOI":"10.1155\/2020\/8864239","type":"journal-article","created":{"date-parts":[[2020,10,24]],"date-time":"2020-10-24T03:48:27Z","timestamp":1603511307000},"page":"1-11","source":"Crossref","is-referenced-by-count":4,"title":["Improved Density Peaks Clustering Based on Natural Neighbor Expanded Group"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7287-0695","authenticated-orcid":true,"given":"Lin","family":"Ding","sequence":"first","affiliation":[{"name":"School of Computer and Communication Engineering and Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, Changsha University of Science and Technology, Changsha, Hunan 410114, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weihong","family":"Xu","sequence":"additional","affiliation":[{"name":"School of Computer and Communication Engineering and Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, Changsha University of Science and Technology, Changsha, Hunan 410114, China"},{"name":"School of Computer Science and Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2277-1765","authenticated-orcid":true,"given":"Yuantao","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Computer and Communication Engineering and Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation, Changsha University of Science and Technology, Changsha, Hunan 410114, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neucom.2017.06.053"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1007\/s10586-018-2368-8"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/TCSVT.2019.2946723"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1155\/2020\/8822777"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1016\/j.jvcir.2020.102794"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1109\/access.2019.2911892"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1007\/s11554-019-00917-3"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.3390\/app9112316"},{"key":"9","article-title":"Dynamic analysis, circuit design and synchronization of a novel 6D memristive four-wing hyperchaotic system with multiple coexisting attractors","volume":"2020","author":"F. 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