trunk: merging sandbox/dan back to trunk.  Includes addition of recipe for the LibriSpeech corpus, and the capability to rescore lattices using ARPA language models that are too big to convert into FSTs.

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Prevents crash on 2nd input file


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trunk: Removing some inessential nnet components from nnet2(PowerExpandComponent, PiecewiseLinearComponent, AffineComponentModified, AffineComponentA, AffinePreconInputComponent, MixtureProbComponent).

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several nnet2-online changes: make it easier to get the feature extraction options right in cross-system training; add train_pnorm_simple.sh script (simplified learning-rate schedule and improved combination at the end, supersedes train_pnorm_fast.sh); modifying big-data online-nnet2 recipes to use 40-dimensional MFCC rather than 13 as input (will add results soon, but they are improved).  Modified filter_scp.pl to have one-based, not zero-based, field index.

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trunk: adding multithreaded and scoring options to steps/decode_basis_fmllr.sh. Also adding the thread_str suffix to an invocation of lattice-determinize-pruned in steps/decode_fmllr.sh

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(babel/s5b) More changes towards finalizing the recipe. The scripts were developed during the eval period and not comitted until now 

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trunk,nnet1: some cosmetic changes, adding stubs of minor experimental features (block-softmax,frame-pooling) 



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- updating the CNN recipe (results not better than DNN)
- removing old and unused initialization scripts



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(trunk/babel/s5c) Creating directory for further recipe development, so that s5b recipe can be finalized

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- fixing a bug in _diff_sigmoid, _diff_tanh. The matrix arguments of a kernel now have individual strides
- better diagnostic log-prints of nested networks in parallel components



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trunk: Replacing extract_ivectors_online.sh with (a modified version of) extract_ivectors_online2.sh and deleting the latter from svn. The new version provides the option of creating fake-speakers (see script). Some example scripts using the online setup were changed to remove calls to extract_ivectors_online2.sh.

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trunk,nnet1: extending script which stores fMLLR features, so that it supports the raw-fmllr for Vijays CNNs


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trunk: some minor script fixes; add discriminative-training results for Fisher English online-nnet2 model.

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trunk: merging some minor fixes/improvements from sandbox/dan, including speed improvement to lattice rescoring code.

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trunk: Added an extra_questions.txt file to the setup so phones can be acoustically distinguished. Minor bugfixes.

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