Deep Learning for NLP

1) CSLM: Continuous Space Language Model toolkit
Link: http://www-lium.univ-lemans.fr/cslm/

Intro: CSLM toolkit is open-source software which implements the so-called continuous space language model.

The basic idea of this approach is to project the word indices onto a continuous space and to use a probability estimator operating on this space. Since the resulting probability functions are smooth functions of the word representation, better generalization to unknown events can be expected. A neural network can be used to simultaneously learn the projection of the words onto the continuous space and to estimate the n-gram probabilities. This is still a n-gram approach, but the LM probabilities are interpolated for any possible context of length n-1 instead of backing-off to shorter contexts. This approach was successfully used in large vocabulary continuous speech recognition and in phrase-based SMT systems.

2) Recurrent Neural Network LM (RNNLM)

Link: http://rnnlm.org/

Intro: Neural network based language models are nowdays among the most successful techniques for statistical language modeling. They can be easily applied in wide range of tasks, including automatic speech recognition and machine translation, and provide significant improvements over classic backoff n-gram models. The 'rnnlm' toolkit can be used to train, evaluate and use such models.

3) word2vec

Link: https://github.com/dav/word2vec or http://deeplearning4j.org/word2vec.html

Intro: This tool provides an efficient implementation of the continuous bag-of-words and skip-gram architectures for computing vector representations of words. These representations can be subsequently used in many natural language processing applications and for further research.

4) Long Short Term Memory (LSTM)
Link: http://www.bioinf.jku.at/software/lstm/
Intro: Software for the state of the art recurrent neural network. Long Short-Term Memory Software

5) DL4J Deep Learning for Java
Link: http://deeplearning4j.org/
Intro: Deeplearning4j is the first commercial-grade, open-source, distributed deep-learning library written for Java and Scala. Integrated with Hadoop and Spark, DL4J is designed to be used in business environments, rather than as a research tool. It aims to be cutting-edge plug and play, more convention than configuration, which allows for fast prototyping for non-researchers.

6) CURRENNT
Link: http://sourceforge.net/projects/currennt/
Intro: CUDA-enabled machine learning library for recurrent neural networks which can run both on Windows or Linux machines with CUDA-supported capability. CURRENNT is a machine learning library for Recurrent Neural Networks (RNNs) which uses NVIDIA graphics cards to accelerate the computations. The library implements uni- and bidirectional Long Short-Term Memory (LSTM) architectures and supports deep networks as well as very large data sets that do not fit into main memory.

7) ...

*** Deep learning materials

- For NLP

a) http://www.socher.org/index.php/DeepLearningTutorial/DeepLearningTutorial

b) http://cl.naist.jp/~kevinduh/a/deep2014/

c) http://ronan.collobert.com/pub/matos/2009_tutorial_nips.pdf

- For general background

a) http://cl.naist.jp/~kevinduh/notes/duh13deepadvances.pdf

b) http://www.trivedigaurav.com/blog/quoc-les-lectures-on-deep-learning/

c) http://deeplearning.net/reading-list/
d) (new book, 2014, draft  version) http://www.iro.umontreal.ca/~bengioy/dlbook/
e) http://people.idsia.ch/~juergen/deep-learning-overview.html 

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(to be updated)