Comments (5)
Normalization is a problem, there are two possible paths it seems:
- Use the Kullback-Leibler (NPEET) implementation instead of MSE, this should be the same 'units' as the normalized MI, because MI can be reduced to Kullbar-Leibler
- Don't try to find one optimum, but find the front where there are no more possibilities where both cost functions are more optimal
from synergy-jointpdf.
Also, I can pass a list-of-lists to NPEET, but it should be [s1, s2, ...] where s1 is the first sample, and is of length n (with n variables in the system).
from synergy-jointpdf.
KL-divergence of NPEET is acting a bit weird so far, and alternative is https://arxiv.org/abs/1702.05222 (sent by Rick).
from synergy-jointpdf.
I think MI is not great for memory, as it ignores that biological systems return to the same state. I think I need to make the following changes:
- Use the KL-divergence to determine memory
- This assumes that dt is in arbitrary time units
- This assumes that a natural system always returns to a value at some point
- Discuss with Jaap Kaandorp what induces limit cycles
- Brainstorm about the definition of memory: the KL-divergence seems to ignore the possibility off limit cycles
- Add noise to the ODE itself
from synergy-jointpdf.
The landscape seems hard to traverse for optimizers, genetic algorithms perform relatively well, Nelder-Mead is horrible, as is basinhopping. I will try BFGS.
from synergy-jointpdf.
Related Issues (20)
- Find a small gene regulation network (2 variables) HOT 1
- Add an application of kNN mutual information HOT 2
- Build a sampling framework
- Write the update rule HOT 1
- Do experiments with a bivariate network HOT 1
- Determine the amount of synergy in the bivariate system HOT 1
- Implement an ODE solver HOT 1
- Add plotting functionality HOT 3
- Getting actual data HOT 2
- Add the option for a random GRN HOT 4
- Discrete nudge toevoegen
- Append correlated variable HOT 1
- Scatterplot nudge impact vs. synergy
- Generate JSONs from real data
- Replace deepen_leafcode by append_var using transition table HOT 1
- Continuous synergy analysis
- Making sure my GRN rule library is correct
- Re-evaluate the scope of my experiments
- Nudge impact almost always zero
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from synergy-jointpdf.