标題：Density-Based Clustering with Geographical Background Constraints Using a Semantic Expression Model作者：Du, Qingyun; Dong, Zhi; Huang, Chudong; Ren, Fu

來源出版物：ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION 卷：5 期：5 文獻編号：72 DOI: 10.3390/ijgi5050072 出版年：MAY 2016

摘要：A semantics-based method for density-based clustering with constraints imposed by geographical background knowledge is proposed. In this paper, we apply an ontological approach to the DBSCAN (Density-Based Geospatial Clustering of Applications with Noise) algorithm in the form of knowledge representation for constraint clustering. When used in the process of clustering geographic information, semantic reasoning based on a defined ontology and its relationships is primarily intended to overcome the lack of knowledge of the relevant geospatial data. Better constraints on the geographical knowledge yield more reasonable clustering results. This article uses an ontology to describe the four types of semantic constraints for geographical backgrounds: "No Constraints", "Constraints", "Cannot-Link Constraints", and "Must-Link Constraints". This paper also reports the implementation of a prototype clustering program. Based on the proposed approach, DBSCAN can be applied with both obstacle and non-obstacle constraints as a semi-supervised clustering algorithm and the clustering results are displayed on a digital map.

入藏号：WOS:000379861800019

文獻類型：Article

語種：English

作者關鍵詞：ontologies, geospatial clustering, geospatial data mining, semantic constraints, DBSCAN

擴展關鍵詞：

通訊作者地址：Ren, F, Wuhan Univ, Sch Resources & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

Ren, F, Wuhan Univ, Key Lab GIS, Minist Educ, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

Ren, F, Wuhan Univ, Key Lab Digital Mapping & Land Informat Applicat, Natl Adm Surveying Mapping & Geoinformat, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

電子郵件地址：qydu@whu.edu.cn; dz_whu@126.com; cdhuang@zjut.edu.cn; renfu@whu.edu.cn地址：

[Du, Qingyun; Dong, Zhi; Ren, Fu] Wuhan Univ, Sch Resources & Environm Sci, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Du, Qingyun; Ren, Fu] Wuhan Univ, Key Lab GIS, Minist Educ, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Du, Qingyun; Ren, Fu] Wuhan Univ, Key Lab Digital Mapping & Land Informat Applicat, Natl Adm Surveying Mapping & Geoinformat, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Du, Qingyun] Wuhan Univ, Collaborat Innovat Ctr Geospatial Technol, 129 Luoyu Rd, Wuhan 430079, Peoples R China.

[Dong, Zhi] First Surveying & Mapping Inst Zhejiang Prov, 135 Jiaogong Rd, Hangzhou 31012, Zhejiang, Peoples R China.

[Huang, Chudong] Zhejiang Univ Technol, Coll Civil Engn & Architecture, 18 Chaowang Rd, Hangzhou 310014, Zhejiang, Peoples R China.

研究方向：Physical Geography; Remote Sensing

ISSN：2220-9964

影響因子：0.651