This map shows the geographic impact of Keyun Qin's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Keyun Qin with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Keyun Qin more than expected).
This network shows the impact of papers produced by Keyun Qin. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Keyun Qin. The network helps show where Keyun Qin may publish in the future.
Co-authorship network of co-authors of Keyun Qin
This figure shows the co-authorship network connecting the top 25 collaborators of Keyun Qin.
A scholar is included among the top collaborators of Keyun Qin based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Keyun Qin. Keyun Qin is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Qin, Keyun. (2009). Attribute Reduction of Set-valued Information System Based on Tolerance Relation. Mohu xitong yu shuxue.1 indexed citations
7.
Qin, Keyun. (2009). Decision attribute reduction of interval-valued information system. Computer Engineering and Applications Journal.2 indexed citations
8.
Qin, Keyun. (2009). A research on the difference measures of rough fuzzy sets.1 indexed citations
9.
Qin, Keyun. (2009). Attribute Reduction of Interval-valued Information System Based on the Maximal Tolerance Class. Mohu xitong yu shuxue.1 indexed citations
10.
Qin, Keyun. (2009). A Method of Upper Approximation and Lower Approximation Fuzzy Reasoning on Complete Residuated Lattice. Journal of Sichuan Normal University.
11.
Qin, Keyun. (2008). Brief analysis about boundary region partition reduction standard. Computer Engineering and Applications Journal.
12.
Qin, Keyun. (2008). Knowledge reduction of set-valued information system based on variable precision tolerance relation. Computer Engineering and Applications Journal.1 indexed citations
13.
Qin, Keyun. (2008). Topological properties of approximation operators based on reflexive and symmetric relations. Computer Engineering and Applications Journal.1 indexed citations
14.
Qin, Keyun. (2008). Comparison of Variable Precision Covering Rough Set Models. Jisuanji gongcheng.2 indexed citations
15.
Qin, Keyun. (2008). Rough Set Algebra and MV Algebra. Mohu xitong yu shuxue.1 indexed citations
16.
Qin, Keyun. (2008). On variable precision covering rough set. Computer Engineering and Applications Journal.1 indexed citations
17.
Qin, Keyun. (2007). On research of variable precision rough fuzzy set model. Computer Engineering and Applications Journal.2 indexed citations
18.
Qin, Keyun. (2007). Fuzzy Rough Set Algebra.1 indexed citations
19.
Qin, Keyun. (2007). Research on implementation algorithm of fuzzy concept lattices based on different implication operator. Computer Engineering and Applications Journal.4 indexed citations
20.
Qin, Keyun. (2007). Research on Modified k-means Data Cluster Algorithm. Jisuanji gongcheng.8 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.