Natural Language Interface in GO
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app Warning about multiple persons. Feb 8, 2018
doc Solution for system questions Sep 21, 2018
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LICENSE MIT License Sep 28, 2017
README.md Released demo Jan 14, 2018

README.md

NLI-GO

nli-go is a library, written in Go, that provides a natural language interface to databases. It is in fact just my hobby-project, but I am trying hard to make this the best nli system ever created!

For years to come, this system is not easy to use, not present for production, and not very robust either. Still, if you really need an nli, it may be worth your trouble to learn it. I think it's pretty cool.

Demo

A demo of this library can be found here. It allows you to use a few sentences to query DBPedia.

Purpose

This library helps a developer to create a system that allow end-users to use plain English / French / German to interface with a database. That means that an end user can type a question like

How many children had Lord Byron?

and the library looks up the answer in a relational database, and formats the result, also in natural language:

He had 2 children.

Every part of the system is configurable.

Install the program

Build this application's executable:

cd ~/go/src/nli-go/app/cli
go build nli.go

If you like, you can move it to a place where it can be found from any location. In a Linux environment you might use:

sudo mv nli /usr/local/bin 

Command-line use

You can use the executable as you would use any command-line application. It has two sub-commands:

Use nli to answer a question, based on a configuration stored in a JSON config file. It returns a JSON string with the answer and / or an error.

./nli answer fox/config.json "Did the quick brown jump over the lazy dog?"

Or use it to suggest the next words the user can type.

./nli suggest fox/config.json "Did the quick"

The config file is described here.

Example web page

An example web page in PHP is included to show how you may use this library. It's in app/web:

Web app showing the library in action

Processing

For details about the processing of a request see Processing