This map shows the geographic impact of Sang‐Gu Lee'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 Sang‐Gu Lee with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Sang‐Gu Lee more than expected).
This network shows the impact of papers produced by Sang‐Gu Lee. 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 Sang‐Gu Lee. The network helps show where Sang‐Gu Lee may publish in the future.
Co-authorship network of co-authors of Sang‐Gu Lee
This figure shows the co-authorship network connecting the top 25 collaborators of Sang‐Gu Lee.
A scholar is included among the top collaborators of Sang‐Gu Lee 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 Sang‐Gu Lee. Sang‐Gu Lee is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Lee, Sang‐Gu, et al.. (2012). An object tracking system for PTZ cameras using CAM shift. 23(1). 191–194.1 indexed citations
6.
Lee, Sang‐Gu, et al.. (2012). Sobel mask operations using shared memory in CUDA environment. 289–292.
7.
Lee, Sang‐Gu, et al.. (2012). Relative Light Unit (RLU) Count at the Dental Environment by Use of FlugunTM and PCMX as a Low Temperature Spray Typed Sterilization Agent. 8(3). 165–171.2 indexed citations
8.
Lee, Sang‐Gu & Mark Hickman. (2011). Travel Pattern Analysis Using Smart Card Data of Regular Users. Transportation Research Board 90th Annual MeetingTransportation Research Board.26 indexed citations
9.
Mirchandani, Pitu B., et al.. (2010). Data Collection and Calibration of Simulation Models of Border Inspection Facilities. Transportation Research Board 89th Annual MeetingTransportation Research Board.1 indexed citations
10.
Bak, JinYeong, et al.. (2009). Development of Mobile Sage-math and its use in Linear Algebra. 23(4). 1023–1041.
11.
Sakthivel, R., et al.. (2009). APPROXIMATE CONTROLLABILITY OF IMPULSIVE DIFFERENTIAL INCLUSIONS WITH NONLOCAL CONDITIONS. Dynamic Systems and Applications. 18.7 indexed citations
12.
Lee, Sang‐Gu, et al.. (2008). A mathematical theory of the AHP(Analytic Hierarchy Process) and its application to assess research proposals. 22(4). 459–469.2 indexed citations
13.
Lee, Sang‐Gu, et al.. (2008). A GENERATION OF A DETERMINANTAL FAMILY OF ITERATION FUNCTIONS AND ITS CHARACTERIZATIONS. Korean Journal of Mathematics. 16(4). 481–494.
14.
Lee, Sang‐Gu, et al.. (2006). Linear algebraic approach on real $\sigma$-game. Journal of applied mathematics & informatics. 21. 295–305.
15.
Beasley, LeRoy B., Alexander Guterman, Sang‐Gu Lee, & Seok-Zun Song. (2005). Frobenius and Dieudonné theorems over semirings. Linear and Multilinear Algebra. 55(1). 19–34.2 indexed citations
16.
Lee, Sang‐Gu, et al.. (2002). One Stage Decompression and Circumferential Stabilization by Posterior Approach in the Unstable Burst Fracture of Thoracolumbar and Lumbar Spine.. Journal of Korean Neurosurgical Society. 32(2). 112–117.1 indexed citations
17.
Lee, Sang‐Gu, et al.. (2001). A Control Method for Unknown Chaotic Systems. 제어로봇시스템학회 국제학술대회 논문집. 683–686.3 indexed citations
18.
Beasley, LeRoy B., et al.. (1999). Linear Operators Strongly Preserving Multivariate Majorization with T(I) = I. Kyungpook mathematical journal. 39(1). 191–191.8 indexed citations
Song, Seok-Zun & Sang‐Gu Lee. (1995). Column ranks and their preservers of general boolean matrices. Journal of the Korean Mathematical Society. 32(3). 531–540.6 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.