Xiaofeng Ma

Dr. Xiaofeng Ma


Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 March 2014 in Technology Analysis & Strategic Management
Verified
Journal Article
Closed access
XMXiaofeng Ma
Xiaofeng Ma
MKMichael Kaldenbach
Michael Kaldenbach
BKBernhard Katzy
Bernhard Katzy
This paper draws attention to the specific aspect of institutional environments in international matchmaking for innovation. While technology is largely global this exploratory study of 18 cross-border cases between Europe and China points to the impact of distant institutional environments on the success and structure of cross-border collaborative innovation. Addressing differences in governance, market regulation, policy, IPR protection, language and culture like the Chinese guanxi are specific services based on dedicated capabilities of international innovation intermediaries.

10 November 2020 in Learning & Education
Verified
Journal Article
Open access
XMXiaofeng Ma
Xiaofeng Ma
QJQiang Ji
Qiang Ji
YXYushui Xiao
Yushui Xiao
Nowadays, online open courses broaden the teaching space, improve the teaching quality, strengthen the learner’s autonomous learning ability, and comprehensively promote the innovation of teaching efficiency, quality, content and management system, which brings new opportunities to the education reform. Therefore, self-built online open courses can combine information technology with education, effectively promote the application and sharing of educational resources, and thus comprehensively improve the quality of teaching.

1 September 2020 in PLOS ONE
Verified
Journal Article
Open access
PDF file
XWXingquan Wu
Xingquan Wu
ZLZhiwei Li
Zhiwei Li
HZHongyuan Zhang
Hongyuan Zhang
XLXin Li
Xin Li
WHWenguang Hou
Wenguang Hou
XMXiaofeng Ma
Xiaofeng Ma
The proposed method is to do simplification for Digital Elevation Model (DEM), which uses a few of original nodes representing the terrain surface while maintaining the accuracy. The original DEM nodes are sampled using the Maximal Poisson-disk Sampling (MPS), in which, the disk’s size of each sample is computed on basis of the Singular Value Decomposition (SVD). MPS can generate the hyper-uniformly distributed samples and was taken to do DEM adaptive sampling by being combined with the geodesic metric. However, the geodesic distance computation is complex and the requirement for memory is high. As such, this paper proposes an extension of the classic MPS based method for selecting quasi-randomly distributed points from DEM nodes based on the distribution of eigenvalues, accounting for surface heterogeneity. To achieve this objective, uniform MPS is conducted to sample the DEM nodes by setting the related disk radius to be inversely proportional to the local terrain complexity, which is defined as an index expressing the local terrain variation. Then, the geodesic metric related parameters are implicitly contained in the defined index. As a result, more samples are concentrated in the rugged regions, and vice versa. The proposed method shows better perfermance, at least the results are comparable with the geodesic distance based Poisson disk sampling method. Meanwhile, it greatly accelerates the sampling process and reduces the memory cost.