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This paper presents a comprehensive review of Cyberinfrastructure (CI), an emerging collaborative research environment, including its representative applications in four science communities around the world. An in-depth analysis is also conducted to reveal the key functions and desired features that can be expected from modern CI systems.
In this paper, we propose a new method for foreground ex- traction of underwater videos based on sparse and low-rank matrix de- composition. By stacking the underwater video frames as columns of a matrix, principal component pursuit algorithm is used for decompos- ing the matrix into a low-rank matrix representing the stationary back- ground and a sparse matrix representing the activities in the foreground...
The key frame extraction is designed for obtaining a (very) compressed set of video frames that summarizes the essential content of a video sequence. In this paper, a well-known information theoretic measure, the Jensen-Rényi divergence (JRD), is studied to estimate the frame-by-frame distance between consecutive video images, for segmenting shots/subshots and for choosing key frames. Our new key...
With the development of SNS(social network service), social network has become more and more important. The problem of how to discover users' (including the Internet and the telecommunication network) social network from users' interaction detail between each other starts to be the focus problem of researchers. Basing on the analysis of telecommunication call data, this paper studied how CDRs(Call...
Weak employee loyalty has always been one of the most serious problems faced by manufacturing enterprises. It is of great practical significance for analyzing the affecting factors of employee loyalty to build structural equation model around junior staff loyalty of manufacturing enterprises. The results show that employees' personal feelings exert the most significant influence on their loyalty,...
The critical flux was determined by flux-step method in this paper. Under different permeate flows and multiple cycle filtration, the regulation of united membrane fouling index (UMFI) and irreversible fouling UMFI (UMFIir) was studied. Both removal efficiency of dissolved organic matter (DOM) and UMFI accompanying with permeate flow were also discussed. The results showed that gradual fouling still...
The traditional association rules are improved and applied them in bus IC card (i.e. public transport IC card) databases. Some interesting spatio-temporal patterns are discovered, such as frequent aboard (alight) bus stops, frequent direct route and frequent transfer route patterns et al. With these concepts and effective pruning strategies, the hidden non-trivial patterns can be effectively extracted...
With the development of many location sensors such as GPS technology and mobile communication devices, a lot of trajectories of users and moving objects can be obtained. These trajectories may contain many interesting individual patterns of the users and moving objects. This creates an appropriate basis for developing efficient new methods for mining moving objects. Semantic clustering of trajectories...
A novel algorithm is proposed for solving the overlapped marker matching issues and satisfying speed requirement in a 3D video motion capture system. Firstly, the mean markers' longitudinal coordination difference in two parallel cameras is calculated to reduce 3D matching error. Secondly, the epipolar geometry restriction is used to make the corresponding marker be restricted in a line. Finally,...
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