TFM-MUIA

Final thesis of máster en inteligencia artificial (UPM)

Abstract

Creation of an Extractive Question/Answering (EQA) system that continuously updates its knowledge from a KG. The student will use language models (e.g. BERT) to build a RESTful service that responds to natural language queries.

Files

The api files in order are:

• application:
  • app.py : controls the requests and responses of the API.
  • config.py : contains the differents configurations for the API.
  • DBpedia.py : solve questions to DBpedia in english.
  • DBpediaES.py : solve questions to DBpedia in spanish.
  • Wikidata.py : solve questions to Wikidata in english.
• manage.py : main python file with several command options for managing the database and starting the server.
• requirements.txt : the libraries needed for the proper operation of the server.

Set up

The latest Python version checked is 3.9.5 and it is required to be 64 bit (compatible with TensorFlow library).

To install the libraries and dependencies: pip install -r requirement.txt

Start the API

The manage.py file, which it is the main python file of the api, allows to config and start the API with the command line. Possibles functions are:

• Development mode: starts the development server. Optionals parameters: host (-h, --host), port (-p, --port).
  python manage.py runserver
• Production mode: starts the production server. Optionals parameters: host (-h, --host), port (-p, --port).
  python manage.py runprodserver
• Help: prints the commands with their description.
  python manage.py -?
  It could be used with others commands to get more info of them. For example:
  python manage.py runserver -?

Server routes

The app.py file controls the flask server in production and development mode. The differents URIs and methods allowed in the server are:

• /DBpedia : solve questions to DBpedia in english.
  • Method: GET
  • Request: question in the body and the parameter text (with true value) if you want to request the full text.
  • Response: json object with the answer, question and text if requested.
  • Status code: 200
• /DBpediaES : solve questions to DBpedia in spanish.
  • Method: GET
  • Request: question in the body and the parameter text (with true value) if you want to request the full text.
  • Response: json object with the answer, question and text if requested.
  • Status code: 200
• /Wikidata : solve questions to Wikidata in english.
  • Method: GET
  • Request: question in the body and the parameter text (with true value) if you want to request the full text.
  • Response: json object with the answer, question and text if requested.
  • Status code: 200

Example

To answer the question Where was Fernando Alonso born? with DBpedia as KG:

curl --location --request GET 'localhost:5000/dbpedia/en?text=true' \ --form 'question="Where was Fernando Alonso born?"'

And the response (without text for saving space):

{ "answer": "oviedo, asturias, spain", "question": "Where was Fernando Alonso born?" }

Documentation

Documentation in spanish Latex : https://www.overleaf.com/read/zmtfzwzqtvtz