* remove yolov3, ssd, rcnn and PaddleDetection.
* remove ICNet, deeplabv3+.
* remove Research
* remove empty folder.

* Add VOT models (#4257)
* First version for VOT models.
* Include SiamFC and ATOM.
* A unified architecture for ATOM and Siames series models.
* update vot code (#4338)
* [VOT]Remove local.py generate step, add tracking gif to README (#4344)
* update vot code
* remove local.py generate step, add tracking gif to README
* fix word usage in readme
* add got10k download website
* add pip install paddlepaddle-gpu
* fix word usage

* remove num_workers

* fix devices_num

* fix data loader

* remove args syncbn

* fix typo

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* add similarity_net dygraph

* fix similarity_net dygraph

* fix bugs of dygraph/similarity_net

* Fix some bugs running on the GPU of dygraph/similarity_net

* fix a bug in pointwise mode of dygraph/similarity_net
Co-authored-by: Npkpk <xiyzhouang@gmail.com>
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* add similarity_net dygraph

* fix similarity_net dygraph

* fix bugs of dygraph/similarity_net

* Fix some bugs running on the GPU of dygraph/similarity_net
Co-authored-by: Npkpk <xiyzhouang@gmail.com>
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>

* update save/load for v1.7

* update load api

* update load api

* Update PaddleMT/transformer to use new while_loop API.

* Updata PaddleMT/transformer to new save/load API.

* Change d_key to d_value in cached keys.

* Update PaddleMT/transformer inference_model to use new load API.

* Make Transformer support to load py2 saved models.

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* add similarity_net dygraph

* fix similarity_net dygraph

* fix bugs of dygraph/similarity_net
Co-authored-by: Npkpk <xiyzhouang@gmail.com>
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>

* upgrade dcn and xdeepfm, change from all old save/load api to fluid.save and fluid.load
* test=develop

* Fix ctr/dnn for v/1.7

* remove num_workers

* update1.7 save/load & fluid.data

* update datafeed to dataloader

* fix readme in gru4rec

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* 17 update api (#4294)

* update1.7 save/load & fluid.data

* update datafeed to dataloader

* Update resnet_acnet.py (#4297)

Bias attr of square conv should be "False" rather than None during training mode.

* test=develop
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>
Co-authored-by: Nzhang wenhui <frankwhzhang@126.com>
Co-authored-by: Nparap1uie-s <parap1uie-s@users.noreply.github.com>

* update 1.7_api for PaddleTextGEN lexical_analysis sentiment_classification

* update new API for ocr
* fix the code style

Upgrade API for 1.7
* PaddleRec/din
* PaddleRec/gnn

* sync_1.7

* update save

* fix load for yolo_dy

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* add similarity_net dygraph

* fix similarity_net dygraph
Co-authored-by: Npkpk <xiyzhouang@gmail.com>
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>

* Update README.md (#4267)

* test=develop (#4269)

* 3d use new api (#4275)

* PointNet++ and PointRCNN use new API

* Update Readme of Dygraph BERT (#4277)

Fix some typos.

* Update run_classifier_multi_gpu.sh (#4279)

remove the CUDA_VISIBLE_DEVICES

* Update README.md (#4280)

* add similarity_net dygraph
Co-authored-by: Npkpk <xiyzhouang@gmail.com>
Co-authored-by: NKaipeng Deng <dengkaipeng@baidu.com>

* PointNet++ and PointRCNN use new API

* Update README.md (#4267)

* test=develop

* update ctr/dnn for v/1.7

* fix load for yolo_dy