From: @pandoublefeng
Reviewed-by: @c_34,@linqingke
Signed-off-by: @c_34

From: @zhengjun10
Reviewed-by: 
Signed-off-by:

From: @cjh9368
Reviewed-by: @zhanghaibo5
Signed-off-by:

增加测试用例

修改测试用例

修改测试用例

修改算子实现，alpha 写死为 1.0

修改算子实现，alpha 写死为 1
修改算子注册

修改算子实现，dy 和 y 搞反了

修改测试代码

修改算子实现

修改算子实现，float16 单独走一个分支

修改算子实现，前端的 float 转换为double

修改算子实现，改回来了

修改算子实现，float16 转换为 Eigen 库中的 half

修改算子实现，float16 转换为 Eigen 库中的 half

修改算子实现，float16 转换为 Eigen 库中的 half

修改算子实现 在单独的文件中实现 EluGrad

修改算子实现 在单独的文件中实现 EluGrad

修改算子实现 在单独的文件中实现 EluGrad

修改算子实现 在单独的文件中实现 EluGrad

格式化代码

修改 pylint 错误

更新注释信息

删除未使用的私有变量

删除未使用的私有变量

From: @changzherui
Reviewed-by: @zh_qh,@zhoufeng54
Signed-off-by: @zh_qh

Renamed illegal variables and functions.

reconverted the nae of function in Lite java files.

modified

From: @yeyunpeng2020
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by:

From: @ling_qiao_min
Reviewed-by: @zhang_xue_tong,@hangangqiang
Signed-off-by: @zhang_xue_tong

From: @pengyongrong
Reviewed-by: 
Signed-off-by:

Cast the float16-input to float32 before ReduceSum, and cast back to float16 after ReduceSum.
If the op after this ReduceSum is a casting from float16 to float32, then it can be eliminated.

Fix can not collect input data when batch size is 1 and total step
number is 1

Fixed spelling errors

From: @sishuikang
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by: @zhanghaibo5

From: @jjfeing
Reviewed-by: @zhoufeng54,@kisnwang
Signed-off-by: @kisnwang

From: @jianghui58
Reviewed-by: 
Signed-off-by:

From: @probiotics_53
Reviewed-by: @hangangqiang,@zhang_xue_tong
Signed-off-by: @hangangqiang

From: @gaoyong10
Reviewed-by: 
Signed-off-by:

From: @c_34
Reviewed-by: @liangchenghui
Signed-off-by:

From: @hfarahat
Reviewed-by: 
Signed-off-by:

From: @yanglf1121
Reviewed-by: @wuxuejian,@kisnwang
Signed-off-by: @wuxuejian

From: @mengyuanli
Reviewed-by: @hangangqiang,@zhanghaibo5
Signed-off-by: @hangangqiang

From: @liubuyu
Reviewed-by: @zhoufeng54,@jjfeing
Signed-off-by: @jjfeing

From: @yangruoqi713
Reviewed-by: @hangangqiang
Signed-off-by:

From: @yeyunpeng2020
Reviewed-by: 
Signed-off-by:

From: @yangruoqi713
Reviewed-by: @zhang_xue_tong,@hangangqiang
Signed-off-by: @zhang_xue_tong