From: @jojobugfree
Reviewed-by: @kisnwang,@chujinjin
Signed-off-by: @kisnwang

From: @zhoufeng54
Reviewed-by: @xu-yfei,@kisnwang
Signed-off-by: @xu-yfei

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

From: @dayschan
Reviewed-by: @gaoxiong1,@ckey_dou
Signed-off-by: @ckey_dou

From: @yuzhenhua666
Reviewed-by: @oacjiewen,@c_34
Signed-off-by: @c_34

From: @simson_wu
Reviewed-by: @chujinjin
Signed-off-by: @chujinjin

From: @shibeiji
Reviewed-by: @linqingke,@c_34,@linqingke
Signed-off-by: @wuxuejian

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

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

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

From: @anrui-wang
Reviewed-by: 
Signed-off-by:

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

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

From: @gzhcv
Reviewed-by: @wangyue01,@lilongfei15
Signed-off-by: @lilongfei15

A minor change in sigmoidGradGrad operation (non-functional change).

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

From: @yuan_shen_zhou
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @penny369
Reviewed-by: @linqingke,@c_34
Signed-off-by: @linqingke

From: @zyli2020
Reviewed-by: @cristoval,@limingqi107
Signed-off-by: @cristoval

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

From: @VectorSL
Reviewed-by: @chujinjin,@limingqi107
Signed-off-by: @limingqi107

From: @yepei6
Reviewed-by: 
Signed-off-by:

From: @shibeiji
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @caojian05
Reviewed-by: @wuxuejian,@oacjiewen
Signed-off-by: @wuxuejian

From: @liu_xiao_93
Reviewed-by: @liangchenghui,@wuxuejian
Signed-off-by: @liangchenghui

From: @jojobugfree
Reviewed-by: @zhoufeng54,@chujinjin
Signed-off-by: @chujinjin,@chujinjin

From: @lx0095
Reviewed-by: @zhang_xue_tong
Signed-off-by:

From: @ouwenchang
Reviewed-by: @wenkai_dist,@wangyue01
Signed-off-by: @wangyue01

From: @jojobugfree
Reviewed-by: @kisnwang,@chujinjin
Signed-off-by: @chujinjin