Are the different kinds of attention in "image_attention.py" redundant?

[BasselAli1]

Hi 😅
In image_attention.py There are three classes

concatenate_attention
project_attention
double_project_attention

But they are not being used at all and there is no place for them to be called in the code from other file or function.(I think we don't need them because we use the MFH model)
We only uses top_down_attention class in the build_image_attention_module function.
My questions are, Are they redundant? and If we wanted to use the ordinary concatenate_attention or project_attention should I modify the build_image_attention_module function to

return concatenate_attention(image_feat_dim, txt_rnn_embeding_dim, hidden_size)

?

[YuJiang01]

yes, currently we didnot use different attention mechanism