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# System prepended metadata

title: 'Parameter Tuning : LiuYC'

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Parameter Tuning : LiuYC
===

Procedure
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- Parameter set :  __ALPHA-SLOPE-STD-A_DEC-R_MIN-TAU__

0. Initial parameters trying all seneitivity tests. (Initial parameter set: 0.3-0.4-0.098-1.8-7-0.6 (random around average))
    >A_DEC    ~~~~~~~~~~~~~~~~~~~~    R_MIN
    >![](https://i.imgur.com/mzP2b1L.png =250x)![](https://i.imgur.com/WcnO2GL.png =250x)

    >SLOPE    ~~~~~~~~~~~~~~~~~~~~    STD
    >![](https://i.imgur.com/JbL1Yoj.png =250x)![](https://i.imgur.com/lTyCK8V.png =250x)

    >ALPHA    
    >![](https://i.imgur.com/kZvR61Q.png =250x)


1. Initial parameter set: 0.3-0.4-0.098-1.8-7-0.6 (random around average)
    > Tuninng A_DEC : (1.0, 8.7, 0.7)
    > ![](https://i.imgur.com/MO64Ffe.png =500x)
 
2. Change A_DEC to 3.8 (smallest of the overlapped)
    > Tunning R_MIN : (5.0, 16.0, 1.0)
    > ![](https://i.imgur.com/dbIlFwA.png =500x)

3. Change R_MIN to 12.0. Different result for when we want the best CAR value. R_MIN values smaller than 12.0 have higher CAR at around T-minus 2.5 while values larger than 12.0 at around T-minus 2.0 .
    > Tunning SLOPE : (0.1, 2.3, 0.2)
    > ![](https://i.imgur.com/BYV8jIh.png =500x)

4. Change SLOPE to 0.9. Values larger than 0.9 are overlapped.
    > Tunning STD : (0.01, 0.23, 0.02)
    > ![](https://i.imgur.com/L6YXvkW.png =500x)


5. Change STD to 0.11 which has the highest CAR at around 3 while not dropping it at around T-minus 2.0 . STD values from 0.01 to 0.07 have idinticle CAR curve.
    > Tuning ALPHA : (0.1, 2.3, 0.2)
    > ![](https://i.imgur.com/lkMroZt.png =500x)

5. Final parameter set : 0.3-0.9-0.11-3.8-12.0-0.6

6. Use the tunned parameters to try sensitivity test for all params again then compatr with those using initial parameter sets.
    >A_DEC (init)
    >![](https://i.imgur.com/mzP2b1L.png =500x)
    >A_DEC (tuned)
    >![](https://i.imgur.com/SzwvCa2.png =500x)
   
    >R_MIN (init)
    >![](https://i.imgur.com/WcnO2GL.png =500x)
    >R_MIN (tuned)
    >![](https://i.imgur.com/wLmrDPJ.png =500x)
    
    >SLOPE (init)
    >![](https://i.imgur.com/JbL1Yoj.png =500x)
    >SLOPE (tuned)
    >![](https://i.imgur.com/GwzZWzW.png =500x)
    
    >STD (init)
    >![](https://i.imgur.com/lTyCK8V.png =500x)
    >STD (tuned)
    >![](https://i.imgur.com/ku9ydMP.png =500x)
    
    >ALPHA (init)
    >![](https://i.imgur.com/kZvR61Q.png =500x)
    >ALPHA (tuned)
    >![](https://i.imgur.com/lgVNscT.png =500x)


