Skills Extractor

• Installation
• Development

Welcome to Nesta's Skills Extractor Library

Welcome to the documentation of Nesta's skills extractor library.

This page contains information on how to install and use Nesta's skills extraction library. The skills library allows you to extract skills phrases from job advertisement texts and maps them onto a skills taxonomy of your choice.

We currently support three different taxonomies to map onto: the European Commission’s European Skills, Competences, and Occupations (ESCO), Lightcast’s Open Skills and a “toy” taxonomy developed internally for the purpose of testing.

If you'd like to learn more about the models used in the library, please refer to the model card page.

You may also want to read more about the wider project by reading:

1. Our Introduction blog
2. Our interactive analysis blog

Installation

To install as a package:

pipx install poetry
poetry shell
poetry install

To extract skills from a job advert:

from ojd_daps_skills.extract_skills.extract_skills import SkillsExtractor

sm = SkillsExtractor(taxonomy_name="toy")

✘ nestauk/en_skillner NER model not loaded. Downloading model...
Collecting en-skillner==any
  Downloading https://huggingface.co/nestauk/en_skillner/resolve/main/en_skillner-any-py3-none-any.whl (587.7 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 587.7/587.7 MB 5.1 MB/s eta 0:00:0000:0100:01
Installing collected packages: en-skillner
Successfully installed en-skillner-3.7.1
✘ Multi-skill classifier not loaded. Downloading model...
Fetching 4 files: 100%|██████████| 4/4 [00:00<00:00, 26843.55it/s]
✘ Neccessary data files are not downloaded. Downloading ~0.5GB of
neccessary data files to
/Users/india.kerlenesta/Projects/nesta/ojd_daps/ojd_daps_extension/ojd_daps_skills/ojd_daps_skills_data.
ℹ Data folder downloaded from
/Users/india.kerlenesta/Projects/nesta/ojd_daps/ojd_daps_extension/ojd_daps_skills/ojd_daps_skills_data

job_ads = [
    "The job involves communication skills and maths skills",
    "The job involves Excel skills. You will also need good presentation skills",
    "You will need experience in the IT sector.",
]
job_ad_with_skills = sm(job_ads)

ℹ Getting embeddings for 3 texts ...
ℹ Took 0.018199920654296875 seconds

To access the extracted and mapped skills for each inputted job advert:

for job_ad_with_skills_doc in job_ad_with_skills:
  print(f"Job advert: {job_ad_with_skills_doc}")
  # print raw ents (i.e. multiskills are not split, also include 'BENEFIT' and 'EXPERIENCE' spans)
  print(f"Entities found: {[(ent.text, ent.label_) for ent in job_ad_with_skills_doc.ents]}")
  # print SKILL spans (where SKILL spans are predicted as multiskills, split them)
  print(f"Skill spans: {job_ad_with_skills_doc._.skill_spans}")
  # print mapped skills to the "toy" taxonomy
  print(f"Skills mapped: {job_ad_with_skills_doc._.mapped_skills}")
  print("\n")

Which returns:

Job advert: The job involves communication skills and maths skills
Entities found: [('communication skills', 'SKILL'), ('maths', 'SKILL')]
Skill spans: [communication skills, maths]
Skills mapped: [{'ojo_skill': 'communication skills', 'ojo_skill_id': 3144285826919113, 'match_skill': 'communication, collaboration and creativity', 'match_score': 0.75, 'match_type': 'most_common_level_1', 'match_id': 'S1'}, {'ojo_skill': 'maths', 'ojo_skill_id': 2887431344496880, 'match_skill': 'working with computers', 'match_score': 0.75, 'match_type': 'most_common_level_1', 'match_id': 'S5'}]


Job advert: The job involves Excel skills. You will also need good presentation skills
Entities found: [('Excel', 'SKILL'), ('presentation skills', 'SKILL')]
Skill spans: [Excel, presentation skills]
Skills mapped: [{'ojo_skill': 'Excel', 'ojo_skill_id': 2576630861021310, 'match_skill': 'use spreadsheets software', 'match_score': 0.7379249448453751, 'match_type': 'skill', 'match_id': 'abcd'}, {'ojo_skill': 'presentation skills', 'ojo_skill_id': 1846141317334203, 'match_skill': 'communication, collaboration and creativity', 'match_score': 0.5, 'match_type': 'most_common_level_1', 'match_id': 'S1'}]


Job advert: You will need experience in the IT sector.
Entities found: [('experience in the IT sector', 'EXPERIENCE')]
Skill spans: []
Skills mapped: []

To run tests:

poetry run pytest tests/

Contributor guidelines

The technical and working style guidelines can be found here.

If contributing, changes will need to be pushed to a new branch in order for our code checks to be triggered.

This project was made possible via funding from the Economic Statistics Centre of Excellence

Project template is based on Nesta's data science project template (Read the docs here).