Cluster Validity Indices (CVI) evaluate the efficiency of a clustering algorithm and Data Envelopment Analysis (DEA) evaluate the efficiency of Decision-Making Units (DMUs) using a number of inputs data and outputs data. Combination of the CVI and DEA inspired the development of a new automatic clustering algorithm called Automatic Clustering Based on Data Envelopment Analysis (ACDEA)... https://www.diegojavierfares.com/flash-price-Shure-BLX2-PG58-H10-Handheld-Wireless-Microphone-Transmitter-top-savings/