This is the Python version of Linguistica, version 5.1, currently under active development. It consists of a suite of tools for the unsupervised learning of lingusitic structure, with a corpus text file as input data.

Note: The latest code under testing and development (with a graphical user interface) is in the gui-test branch.

Run the following:

$ git clone https://github.com/lxa2015/lxa-py.git
$ cd lxa-py/

Now you are at the directory lxa-py/ and ready to use any of the core components of Linguistica.

The core components are the following (more are being added):

• lxa5.py
• ngrams.py
• manifold.py
• tries.py
• phon.py
• neighbors.py
• wordbreaker.py (code refactoring/optimization in progress)

Note: For manifold.py and neighbors.py, the following packages are required: networkx, numpy, and scipy. To install these, please be sure to do so for your Python 3 distribution, not Python 2. (If you are using Ubuntu, run this: sudo apt-get install python3-networkx python3-numpy python3-scipy)

The input-output relatioships between various core components and their outputs are as follows:

corpus text ---ngrams.py---> wordlist ---lxa5.py----> morphological signatures
          |            |            |
          |            |            | ---tries.py---> tries
          |            |            |
          |            |            | ---phon.py----> phonlist, biphons, triphons
          |            |
          |            | ---> word bigrams, ---manifold.py---> word neighbors,
          |                   word trigrams                    master neighbor graph
          |                                                      |
          |                                                      | neighbors.py
          |                                                      v
          |                                                    neighbor graph
          |                                                    by seed words
          | ---wordbreaker.py---> word segmentation

For any of the core components, run this for what parameters can be changed (assuming you are at the directory lxa-py/):

$ python3 <file> -h

Currently, the following three major parameters are especially important:

• [language]: the name of the language under study
• [corpus]: the filename of the corpus text (including the file extension, if any)
• [datafolder]: the directory where the folder [language] (containing [corpus]) is located

The following directory structure is assumed to be in place before anything runs:

[datafolder]/
    [language]/
        [corpus]

All results and derived datasets will be stored under the [language] folder. Please see the details below in the "Outputs" section.

As a concrete example, a directory structure may look like this:

data/
    english/
        english-brown.txt
lxa-py/
    (all .py files etc from the lxa-py repository)

To run any of the core components with this directory structure (assuming that you are now at the directory lxa-py):

$ python3 <file> --language=english --corpus=english-brown.txt --datafolder=../data

Note that [datafolder] takes a relative path. After a command like this is run for the first time, config.json is created to store the parameters just entered. This allows the user to conveniently run again and reuse the same parameters simply by python3 <file> without the optional arguments.

Sample corpus files (including english-brown.txt for the English Brown corpus) can be found here.

All results and derived datasets are stored in subfolders under the [language] folder. Many of them are outputs of Python dictionaries; their filenames are in the form of "AToB", for a map from A to B. All outputs are human-readable .txt files, while some of them also have a corresponding .json version which is read back into Python in the pipeline. Sample files for English and French are in the datasets repository.

Output files generated by the core components (with xxx.txt as the corpus text input):

• lxa5.py (subfolder: lxa/)

  • xxx_WordToSigtransforms.json

  • xxx_WordToSigs.json

  • xxx_SigToStems.json

  • xxx_AffixToSigs.txt

  • xxx_SigToStems.txt

  • xxx_SigToWords.txt

  • xxx_WordToSigs.txt

  • xxx_WordToSigtransforms.txt

  • xxx_mostFreqWordsNotInSigs.txt

  • xxx_WordsInSigs.txt

  • xxx_WordsNotInSigs.txt

• ngrams.py (subfolders: ngrams/, dx1/)

  • xxx_words.txt
  • xxx_bigrams.txt
  • xxx_trigrams.txt
  • xxx.dx1 (in the dx1/ subfolder)

• manifold.py (subfolder: neighbors/)

  (assuming the default settings of 1000 word types and 9 neighbors)

  • xxx_1000_9_neighbors.txt
  • xxx_1000_9_neighbors.json
  • xxx_1000_9_neighbors.gexf (graph data file for Gephi)
  • xxx_1000_9_shared_contexts.txt
  • xxx_1000_9_ImportantContextToWords.txt

• neighbors.py (subfolder: neighbors/)

  • (neighbor graphs for the given seed words)

• tries.py (subfolder: tries/)

  • xxx_SF.txt (successor frequencies)
  • xxx_PF.txt (predecessor frequencies)
  • xxx_trieLtoR.txt
  • xxx_trieRtoL.txt
  • xxx_Signatures.txt

• phon.py (subfolder: phon/)

  • xxx_phones.json
  • xxx_biphones.json
  • xxx_triphones.json
  • xxx_phones.txt
  • xxx_biphones.txt
  • xxx_triphones.txt

• wordbreaker.py (subfolder: wordbreaking/)

  • (work in progress)