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With the advances in transportation, it is so much easier to go on a long journey.
It leads to that more and more people use suitcases and it is common that people
lose their suitcases on their ways to destinations or cannot recognize their own
among hundreds of similar suitcases.
Ming Chun Hsu,
Ze Min Huang,
Xuan Huan King,
National Chung Hsing University