malcolmgreaves / implie

Implicit relation extractor using a natural language model.

ImplIE

ImplIE (Implicit relation Information Extraction) is a program that extracts binary relations from English sentences where the relationship between the two entities is not explicitly stated in the text. ImplIE supports the following target relations out-of-the-box: has nationality, has job title, has province, has city, and has religion. However, other relations can be supported by providing a list of keywords for a new target relations. This is possible because ImplIE uses a target independent syntactic language model.

For example, consider the following sentence:

French journalist Paul Legall reported that all three hostages arrived safely at Athens International Airport.

The out-of-the-box ImplIE system extracts the following binary relations:

(French journalist Paul Legall; has nationality; French)
(journalist Paul Legall; has job title; journalist)
(Athens International Airport; has city; Athens)

Building

ImplIE uses Java 8 and the sbt build system. Install sbt. Enter the root directory of this repository and run command

sbt compile

This will take a while the first time since it will download and resolve all the dependencies.

Using ImplIE as a Dependency

We haven't released ImplIE to maven, but it can be released locally. From this repository run the following commands to release the project locally.

sbt
publish-local

Then ImplIE can locally be added as a dependency in sbt by adding the following to the libraryDependencies.

libraryDependencies ++= Seq(
    // other dependencies...
    "edu.washington.cs.knowitall.implie" %% "implie" % "1.0.0-SNAPSHOT",
    // other dependencies...
)

Citing ImplIE

TODO: add bibTex when paper is published

Contributors

• Gene Kim
• Natalie Hawkins