task1

Task1

写心得，总结问题和难点，代码等（内容不限）

主要学习到了pytorch的操作，已经动手实现线性回归与简单的神经网络

pytorch实现模型步骤

1、创建数据（https://pytorch.org/docs/stable/tensors.html）

There are a few main ways to create a tensor, depending on your use case.

To create a tensor with pre-existing data, use torch.tensor().

To create a tensor with specific size, use torch.* tensor creation ops (see Creation Ops).

To create a tensor with the same size (and similar types) as another tensor, use torch.*_like tensor creation ops (see Creation Ops).

To create a tensor with similar type but different size as another tensor, use tensor.new_* creation ops.

2、初始化模型参数

3、模型构建

torch.nn.Sequential

class TwoLayerNet(torch.nn.Module)

4、定义损失函数

5、定义优化器

6、模型训练

7、模型评估