DEA with streaming data |
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Authors: | JH Dulá FJ López |
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Institution: | 1. School of Business, Virginia Commonwealth University, Richmond, VA 23284, United States;2. School of Business Administration, Macon State College, Macon, GA 31206, United States |
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Abstract: | DEA can be interpreted as a tool for the identification of “frontier outliers” among data points. These are points that are potentially interesting because they exhibit extreme properties in that the values of their attributes, either alone or combined, are at the upper or lower limits of the data set to which they belong. A real challenge for this type of frontier analysis arises when data stream in at high rates and the DEA analysis needs to be performed quickly. This paper extends DEA into this dynamic data environment. The purpose is to propose a formal theoretical framework to handle streaming data and to answer the question of how fast data can be processed using this new framework. Potential applications involving large data sets include auditing, appraisals, fraud detection, and security. In such settings the situation is likely to be dynamic with the data domain constantly changing as new entities arrive in the course of time. New specialized tools to adapt DEA to deal with streaming data will be explored. |
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Keywords: | Data envelopment analysis (DEA) Linear programming (LP) |
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