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Numerous studies have generated cost estimating relationships (CERs) for transportation projects via data analysis. Some studies collected data from databases, while others sourced data from conventional paper-based formats. When cost data were not in a consistent format, many studies failed to discuss the streamlining of pattern recognition. This work adopts a standard procedure for identifying CERs...
Process control analysis system based on data warehouse (DWPCS) is introduced in this paper, which integrates the theory of SPC and DW. It firstly introduces the general framework of DWPCS and then gives an example of building subject data set that contains the relative data of control parameters. Lastly it detailedly explains the process of selecting related variables by statistical analysis methods,...
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