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In practical chemical plants, melt index (MI) can only be measured by off-line analysis which cost 2–4 hours. So it is important to develop online analyzers using process data especially when the mechanism is complex. A novel data based soft-sensing method is proposed for MI estimating in propylene polymerization process. This approach is constructed under just-in-time modeling scheme, in which historical...
The clustering and synthesis of the load characteristics is very important to load modeling. A load clustering and synthesis modeling method based on improved fuzzy c means clustering algorithm is presented. Firstly, the classification algorithm uses the measured response array as character vector to cluster different bus load, and obtains cluster centre. Secondly, the cluster centre is used to identify...
The self-index is a kind of highly compressed, self-contained full-text index. It is designed for indexing plain texts in order to reduce its permanent storage, as well as to enhance searching performance. Apart from being a sequence of characters, usually the text has specific internal structure. The data record, as a basic model of structured data, is therefore employed to represent and organize...
Operational Risk management is an important part of risk management. Facing to today's increasingly frequent operational risk of commercial banks, commercial banks need to develop practical operational risk control procedures and relevant measures, The establishment of Early-warning systems of operational risk would play a very important role in the future risk management. By means of the BP Neural...
This paper presents an integration framework of wisdoms of experts with different field knowledge and experiences for complex system analysis . We call these experts as realm experts in the paper. Hall for workshop of meta-synthetic engineering (HWME), proposed by QIAN Xue-sen, is an accepted important method for complex system analysis. After briefly reviewing the research situation of complex system...
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