DEA Implementation And Clustering
Analysis Using The K-Means Algorithm
Author(s)
C. A. A. Lemos, M. P. E. Lins & N. F. F. Ebecken
Abstract
Nowadays, problems that involve efficiency analysis and decision support
systems inside a company need special attention and a number of tools have been
developed to support managers. DEA – Data Envelopment Analysis is one of
these tools and its use is increasing in research and in new developments. The
problem is how to improve the quality of DEA analysis when the DMU
(decision-making unit) it analyzes is considered efficient, and how to guarantee
the analysis if the input and output parameters that contain a lot of zeros?
Probably these parameters have not been considered in how to visualize the
inputs and outputs in n-dimensional space? This paper proposes combining
another tool with DEA based in data mining, CLUSTERING, to evaluate the
efficiency analyses made for DEA tools, and visualize groups which have
inefficient DMUs, based on the K-Means algorithm, and apply over a
telecommunication database that contains an indicator of efficiency of the
telephone installation in the Brazilian market.
Keywords: Data Envelopment Analysis, clustering, data mining,
telecommunication quality indicator, decision support system.
1 Introduction
Problems that involve efficiency analysis inside a company need to have special
attention. Tools are being development to support managers. Some companies
use complex formulations based on traditional statistical methods and others are
using new environments based on computational intelligence and others tools.
DEA [2] is one of these tools that obtain relative efficiency between two or more
companies, departments or groups. The problem in DEA is how to improve the
quality of analysis when the DMU (decision-making unit) it analyzes is
Keywords
Data Envelopment Analysis, clustering, data mining,
telecommunication quality indicator, decision support system.
Related Book
Other papers in this volume
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