Deepctr

Major Features and Improvements
- Refactor:
- Layers in `deepctr.layers` are moved to `deepctr.layers.core`,`deepctr.layers.interaction` and `deepctr.layers.normalization`
- Layers in `deepctr.activations` are moved to `deepctr.layers.activation`
- Layers in `deepctr.sequence` are moved to `deepctr.layers.sequence`
- Add `BiLSTM` and `Transformer` in `deepctr.layers.sequence` [docs](https://deepctr-doc.readthedocs.io/en/dev/deepctr.layers.sequence.html
)


API changes
- `deepctr.layers`, `deepctr.activations`, `deepctr.sequence` change as shown above.

Change Log
Major Features and Improvements
1. Add multi-task models: [SharedBottom](https://deepctr-torch.readthedocs.io/en/latest/Features.html#sharedbottom), [ESMM](https://deepctr-torch.readthedocs.io/en/latest/Features.html#esmm-entire-space-multi-task-model), [MMOE](https://deepctr-torch.readthedocs.io/en/latest/Features.html#mmoe-multi-gate-mixture-of-experts), [PLE](https://deepctr-torch.readthedocs.io/en/latest/Features.html#ple-progressive-layered-extraction) zanshuxun
2. Support Python 3.9 and 3.10 shenweichen
Bug Fixes and Other Changes
- fix 232 240 zanshuxun

DisscussionGroup

- [Github Discussions](https://github.com/shenweichen/DeepCTR/discussions)
- Wechat Discussions

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Change Log

Bug Fixes and Other Changes
- Fix model save error when using acc metric 106 gaohongkui
- Fix model error when all feature columns are dense 192 zanshuxun

DisscussionGroup

- [Github Discussions](https://github.com/shenweichen/DeepCTR/discussions)
- Wechat Discussions

|公众号：浅梦学习笔记|微信：deepctrbot|学习小组 [加入](https://t.zsxq.com/026UJEuzv) [主题集合](https://mp.weixin.qq.com/mp/appmsgalbum?__biz=MjM5MzY4NzE3MA==&action=getalbum&album_id=1361647041096843265&scene=126#wechat_redirect)|
|:--:|:--:|:--:|
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Change Log
Major Features and Improvements
- Add [AFN](https://deepctr-torch.readthedocs.io/en/dev-swc/Features.html#afn-adaptive-factorization-network-learning-adaptive-order-feature-interactions) model WeiyuCheng

Bug Fixes and Other Changes

- Fix callback error 171 zanshuxun
- Fix `VarLenSparseFeat` error 176 179 180 zanshuxun
- Change the output shape of `InteractingLayer` in `Autoint` 74 zanshuxun

Change Log
Major Features and Improvements
- Add [IFM](https://deepctr-torch.readthedocs.io/en/latest/Features.html#ifm-input-aware-factorization-machine) and [DIFM](https://deepctr-torch.readthedocs.io/en/latest/Features.html#difm-dual-input-aware-factorization-machine) model
- Support multi gpus running. [example](https://deepctr-torch.readthedocs.io/en/latest/FAQ.html#how-to-run-the-demo-with-multiple-gpus)

Change Log

Bug Fixes and Other Changes

- fix error in dcn-mix