Comments (2)
That's the expected behaviour, you are seeking the objective function
minimise, seems all is working.
On 12 Jun 2016 00:31, "junjun16" [email protected] wrote:
I ran the demo demOil4.
The errors went from positive to negative and continue to decrease, like
following.
Cycle 13 Error 20962.592172 Scale 2.083569e+04
Cycle 14 Error 12966.345081 Scale 1.041785e+04
Cycle 15 Error 5170.066683 Scale 5.208923e+03
Cycle 16 Error 2142.240905 Scale 2.604461e+03
Cycle 17 Error -1369.209243 Scale 1.302231e+03
Cycle 18 Error -2120.706700 Scale 6.511154e+02
Cycle 19 Error -3046.368921 Scale 3.255577e+02
Cycle 20 Error -3528.695085 Scale 1.627788e+02
Cycle 21 Error -3834.332228 Scale 8.138942e+01
Cycle 22 Error -4124.404594 Scale 4.069471e+01
Cycle 23 Error -4296.765671 Scale 2.034735e+01It seems to go unbounded and won't stop.
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Seems we can close this. Just a quick addition, the negative error (value of the objective) is because we actually compute the logarithm of the objective, which can be negative.
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