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Information Hiding is a good method to transmit important information secretly. Video sequences usually include many frames, so they have more room to hide information. In the paper, in order to increase the amount of hiding information, we choose MPEG sequences as hosts, and we present a practical method to hide information in MPEG compressed video. Generally, there are many B-frames in each GOP...
In the paper, we present an efficient algorithm to hide information in MPEG compressed video. In order to utilize the large amount of video streams, and to speed up the process of hiding information, we provide an algorithm that makes use of compressed coefficients to hide information directly. The advantage of the method is that we can make use of DCT coefficients directly without compressing and...
The information-intensive and interdisciplinary iterative nature of construction design projects makes it hard to plan and schedule using traditional tools. This results in inevitable rework and time waste in design process. The DSM method can handle sequential, parallel, in addition to coupled activities, and thus to optimize information flow in construction design project. In this article, a quantitative...
This paper summarized advantages and disadvantages of recent attribute reduction algorithms, and proposed a new attribute reduction method which is taken attribute correlation as heuristic information, this method can not only remove irrelevant features, but also delete redundant features from the candidate attribute set. Theoretical analysis and experiment results demonstrate that on the premise...
Data mining, which is also referred to as knowledge discovery in databases, is the process of extracting valid previously unknown, comprehensible and actionable information from large databases and using it to make crucial decisions. In this paper, we present the data mining process from dissolved gas data extraction to characteristic vectors by grey relational analysis, and corresponding algorithms...
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