iam13atman / Queryer

8th Semester NLP mini project for Sangam Sharma and Sajeet Pokharel.

About

Quepy is a python framework to transform natural language questions to queries in a database query language. Quepy supports SPARQL and MQL. It was used to customize different kinds of questions in natural language and database queries. Example: Who is Elon Musk? This transformation is done using special form of regular expressions:

person_name = Group(Plus(Pos("NNP")), "person_name")
regex = Lemma("who") + Lemma("be") + person_name + Question(Pos("."))

then using a way to express semantic relations:

person = IsPerson() + HasKeyword(person_name)
definition = DefinitionOf(person)

Then rest of the transformation is handled automatically by the framework to produce following sparql:

	SELECT DISTINCT ?x1 WHERE {
	    	?x0 rdf:type foaf:Person.
	    	?x0 rdfs:label "Elon Musk"@en.
	    	?x0 rdfs:comment ?x1.
	}

Executing

You have to have installed the following libraries: quepy, refo, nltk.

  pip install quepy refo

Example Usage

  python main.py "What is the capital of Nepal?"

About the authors

This program is written by Sangam Sharma and Sajeet Pokharel as a Mini Project for Speech and Natural Language Processing course at Kathmandu University taught by Dr. Bal Krisna Bal.