Word Vectors Visualization in Tree Form

Authors: Van-Thuy Phi and Taishi Ikeda.

Supervisor: Assistant Professor Kevin Duh.

• Two types of distances: Cosine distance and Euclidean distance.
• Totally 8 different models for the English and the Japanese data.
• Run simple HTTP server: "python -m SimpleHTTPServer 8888".

![fig1] (demo_en.png)



![fig2] (demo_ja.png)

• Main files and folders:

  • backend
    
    • HiraganaTimes_English
      implementation of the continuous bag-of-words and skip-gram architectures for computing vector representations of words in English; skip-gram (slower, better for infrequent words) vs CBOW (fast).
    • HiraganaTimes_Japanese
      implementation of the continuous bag-of-words and skip-gram architectures for computing vector representations of words in Japanese; skip-gram (slower, better for infrequent words) vs CBOW (fast).
    • Convert_to_JSON
      scripts for converting word2vec models to JSON databases.
  • frontend
    
    • data
      contain all data for searching word and vizualize them: "data_cosine.json" and "data_euclidean.json" are the databases. The flare-format data is created from the database when running the web page.
    • js
      contain D3.js library (visualization javascript library).
    • word2vec_tree_final.html
      the main web page.

• Visualize your own data

  • To convert the word2vec models to the JSON files, the Gensim library (https://radimrehurek.com/gensim/install.html) is required. Quick install Gensim: "easy_install -U gensim" or, alternatively: "pip install --upgrade gensim".
  • For Cosine distance metric: use script "create_database_cosine.py".
  • For Euclidean distance metric: use script "create_database_euclidean.py", and copy the file "word2vec.py" to Gensim library's location, e.g., "/Library/Python/2.7/site-packages/gensim-0.10.3-py2.7-macosx-10.10-intel.egg/gensim/models". In this new implementation, the new method most_similar_euclidean() is included to calculate the distance between pairs of words/phrases by Euclidean metric.
  • Special characters should be excluded from JSON files to generate the correct JSON format. More details are in "Remove_Special_Characters.txt" file.