Fig. 1. DNT and HMX of Reference Spectra
Fig. 2. Process of PCA Linear Transformation
Fig. 3. Process of the Hierarchical Clustering
Fig. 4. Hierarchical Tree based Search Algorithm
Fig. 5. Comparison of the previous Algorithms and the Proposed Fast Searching Algorithms
Table 1. Multiplication, Addition, Total Calculation Complexity with the best Performance for the Previous and the Proposed Fast Searching Algorithms
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