Create a "vectors only" Spacy model

README.md

1. Use GloVe to produce vector data

   • This will produce the vectors.txt and vectors.bin data

2. Use main.py to produce a new "vectors only" spacy model by using en_core_web_md as the base

3. Once this finishes, run spacy package inDir outDir with inDir, outDir set to ModelInputDir, WhateverOutputDir respectively.

   • This step will create a package that can be readily used by spacy.

4. From within WhateverOutputDir, execute pip install -e ./ to install the model as a module.

5. Use that as a model reference in python code or when using Prodigy.

main.py

'''Athanasios Anastasiou Feb 2018

A brief script to compile vectors to Spacy models
'''

import sys
import spacy
import numpy

try:
    import en_core_web_md
except:
    sys.stdout.write("en_core_web_md not installed, it can be obtained from:https://spacy.io/usage/models\n");
    sys.exit(-1);
    


if __name__ == "__main__":
    nlp = en_core_web_md.load(); #This will take some time
    
    #This is a parameter of the whole process and it is the length of the vector for each word.
    #It seems to be NVectors+1, where NVectors is the number of vectors parameter passed to GloVe
    width = 300;
   
    with open("./vectors.txt") as fd:
        vectors = list(fd)
    
    justData = []
    #In my case, GloVe would generate some strings with spaces between then which of course interferes with "split".
    #This is taken into account here by first splitting at blanks and then taking N Vectors from the end of the list. The remaining entries are concatenated into the "key".
    #This can be optimised further of course, within an iteration
    justData = list(map(lambda x:(" ".join(x.split()[0:-width]),list(map(lambda y:float(y),x.split()[-width:]))),vectors));
    
    nlp.vocab.reset_vectors()
    for i, line in enumerate(justData):
        nlp.vocab.set_vector(line[0], numpy.array(line[1]))  
        

    ##Need to alter the metadata right here
    metaData = {'author': 'Athanasios Anastasiou',
                'description': 'Tech vocab',
                'email': 'a.anastasiou@swansea.ac.uk',
                'lang': 'en',
                'license': 'CC BY-SA 3.0',
                'name': 'techVocab_test',
                'parent_package': 'spacy',
                'pipeline': ['tagger', 'parser', 'ner'],
                'spacy_version': '>=2.0.0a18',
                'version': '1.0.0'}
    nlp.meta = metaData
    #Now that the model is ready it needs to be saved
    nlp.to_disk('../ModelInputDir')