Vulcan/TextualEvidenceFinder

I/O

Input: A Proposition [A natural language sentence + Open IE tuples from the sentence.]

Output: A list of query/score pairs representing evidence for the proposition.

Components

Query Generator

The query generator outputs two types of queries for each proposition:

1. Keyword queries -- Extract keywords from the query sentence [TBD: Stemming? Stopword removal?] 2. Template queries -- A template query is simply a tuple (or the sentence) where one or more words in the tuple is replaced with a wild-card operator. The system will be given a set of rules that specify how to convert a tuple into different template queries.

Examples

Input: 

[Sentence: Iron nail is a good conductor of electricity, Tuples: (iron nail, is a good conductor of, electricity)]

Output: 
Q1: (iron *, is a good conductor of, electricity) //Template query
Q2: (* nail, is a good conductor of, electricity) //Template query
Q3: (iron nail, is a * conductor of, electricity) //Template query
Q4: iron * conductor * electricity                //Template query 
Q5: iron or conductor or electricity              //Keyword query

Open IE 4.0

Use Open IE 4.0.