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Information quality is the premise for scientific decision making. Along with the development of various types of information-sharing project, problems of information quality are increasingly apparent. This paper firstly analyzed the criteria of information quality from the relationship between information quality and data quality, and then proposed an improved scheme based on metadata to resolve...
This paper focused on introducing the construction of Virtual Institute of Traditional Chinese Medicine (VITCM). Funded by National High Technology Research and Development Program ("863"Program) of China (No.2006AA01A122), VITCM organized 35 TCM universities or institutions and more than three hundred professionals to build databases jointly, and firstly developed the database technical...
The data quality problem often be ignored in the process of data warehouse construction and utilization. In order to avoid the phenomenon of "garbage in, garbage out" which will influence the decision-making, the problem of data quality must be paid great attention. In this paper, we took the Chinese materia medica (Cmm) data warehouse in China Academy of Chinese Medical Sciences (CACMS)...
The multi-autonomic objects flexible workflow is a flexible workflow with Autonomic Objects (AO) embedded in workflow activities, AO can improve the intelligence of flexible workflow by using of autonomic computing technology. In order to benefit the autonomic computing of AO, a knowledge acquisition approach based on rough set is proposed to acquire knowledge in flexible workflow instance. The AO...
This paper focuses on the problem of Hinfin filter design for nonlinear systems with time-varying delays. A new approach of filter design is proposed. The present results may improve the existing ones due to a method to estimate the upper bound of the derivative of Lyapunov functional without ignoring some useful terms. A sufficient condition for the existence of such a filter is established by using...
At present, there are two kinds of the high voltage and large capacity inverter, namely multilevel and multi-pulse inverters. In this paper, multi-pulse inverters are classified into two types according to the interphase transformer configuration. At first, the fundamental and harmonic voltage amplitude expressions of two types of the multi-pulse inverter are proposed and used to analyze the relationship...
Remote sensing has been applied to agriculture at very coarse levels of granularity (i.e., national levels) but few investigations have focused on yield prediction at the farm unit level. Specific aims of the present investigation are to analyze the ability of Moderate Resolution Imaging Spectroradiometer (MODIS) data to predict cotton yields in two highly homogeneous counties in west Texas. In one...
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