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Dear Prof. Lu @lululxvi,
I'm trying to solve a Schrodinger equation after Madelung transformation, but while training the model I got several NAN values.
The equation is as follows:
![image](https…
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Thanks for sharing your great work! I have one question about how to input weights and biases of NN into POLAR. In your neural_network.py, it seems like you read the weights and biases for each neuron…
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@lululxvi
dear sir,
I want to solve the above problem with these following pde, bc, and ic conditions
This is 3d heat conduction equation
Here q is the total heat = q_source (On top su…
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Dear @lululxvi
I have specified all essential derivatives as below. However, upon compiling model, an error occurred.
PDE is defined as
```python
def pde2(X,U):
x,z,t=X[:, 0:1],X[:, 1:2],X[:…
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Dear @lululxvi
I want to solve a system of equation consist of an energy balance PDE and Arrhenisu equation.
My inputs are the Spatial and Temporal dimensions and the ambient temperature.
My outpu…
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I'm facing a problem with the result obtained from the DeepXDE library compared with the literature. It may be probably a mistake of mine, but I think it may be also helpful a discussion for everyone …
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Dear Dr. lulu,
I have questions regarding DeepXDE.
I would like to solve an inverse problem for a PDE with coefficients which are functions of space and time A(x,t) and B(x,t).
Is this possible?…
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Hi Prof. @lululxvi ,
This is a follow-up to my previous question https://github.com/lululxvi/deepxde/issues/1679.
I've a 2D geometry created using PointCloud.
```
geom = dde.geometry.PointCl…
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Hi Lu,
I've a problem while I was trying to finding best hyperparametres for my model. I wanted to hold the same training points for each net configuration, to obtain the same result if I decided t…
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在使用 `deepxde` 训练的时候,为了测试一些极端情况,我经常把输入数据设置的极小(接近0)或者超过几百,或者有些写了错误的边界条件、初始条件,这时候训练模型`Train loss`和`Test loss`会出现`nan`,并且立刻停止训练。出现这种情况一般需要截断误差,即如果一旦损失值超过某个界限[lossmax],就直接截断,取预先设定的值。规范化 PDE或分配损失权重( normali…