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#include "BlockArray.h"
#include "Nnet.h"
namespace TNet
{
void
BlockArray::
PropagateFnc(const Matrix<BaseFloat>& X, Matrix<BaseFloat>& Y)
{
SubMatrix<BaseFloat> colsX(X,0,1,0,1); //dummy dimensions
SubMatrix<BaseFloat> colsY(Y,0,1,0,1); //dummy dimensions
int X_src_ori=0, Y_tgt_ori=0;
for(int i=0; i<mNBlocks; i++) {
//get the correct submatrices
int colsX_cnt=mBlocks[i]->GetNInputs();
int colsY_cnt=mBlocks[i]->GetNOutputs();
colsX = X.Range(0,X.Rows(),X_src_ori,colsX_cnt);
colsY = Y.Range(0,Y.Rows(),Y_tgt_ori,colsY_cnt);
//propagate through the block(network)
mBlocks[i]->Propagate(colsX,colsY);
//shift the origin coordinates
X_src_ori += colsX_cnt;
Y_tgt_ori += colsY_cnt;
}
assert(X_src_ori == X.Cols());
assert(Y_tgt_ori == Y.Cols());
}
void
BlockArray::
BackpropagateFnc(const Matrix<BaseFloat>& X, Matrix<BaseFloat>& Y)
{
KALDI_ERR << "Unimplemented";
}
void
BlockArray::
Update()
{
KALDI_ERR << "Unimplemented";
}
void
BlockArray::
ReadFromStream(std::istream& rIn)
{
if(mBlocks.size() > 0) {
KALDI_ERR << "Cannot read block vector, "
<< "aleady filled bt "
<< mBlocks.size()
<< "elements";
}
rIn >> std::ws >> mNBlocks;
if(mNBlocks < 1) {
KALDI_ERR << "Bad number of blocks:" << mNBlocks;
}
//read all the blocks
std::string tag;
int block_id;
for(int i=0; i<mNBlocks; i++) {
//read tag <block>
rIn >> std::ws >> tag;
//make it lowercase
std::transform(tag.begin(), tag.end(), tag.begin(), tolower);
//check
if(tag!="<block>") {
KALDI_ERR << "<block> keywotd expected";
}
//read block number
rIn >> std::ws >> block_id;
if(block_id != i+1) {
KALDI_ERR << "Expected block number:" << i+1
<< " read block number: " << block_id;
}
//read the nnet
Network* p_nnet = new Network;
p_nnet->ReadNetwork(rIn);
if(p_nnet->Layers() == 0) {
KALDI_ERR << "Cannot read empty network to a block";
}
//add it to the vector
mBlocks.push_back(p_nnet);
}
//check the declared dimensionality
int sum_inputs=0, sum_outputs=0;
for(int i=0; i<mNBlocks; i++) {
sum_inputs += mBlocks[i]->GetNInputs();
sum_outputs += mBlocks[i]->GetNOutputs();
}
if(sum_inputs != GetNInputs()) {
KALDI_ERR << "Non-matching number of INPUTS! Declared:"
<< GetNInputs()
<< " summed from blocks"
<< sum_inputs;
}
if(sum_outputs != GetNOutputs()) {
KALDI_ERR << "Non-matching number of OUTPUTS! Declared:"
<< GetNOutputs()
<< " summed from blocks"
<< sum_outputs;
}
}
void
BlockArray::
WriteToStream(std::ostream& rOut)
{
rOut << " " << mBlocks.size() << " ";
for(int i=0; i<mBlocks.size(); i++) {
rOut << "<block> " << i+1 << "\n";
mBlocks[i]->WriteNetwork(rOut);
rOut << "<endblock>\n";
}
}
} //namespace
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