<Ryanair,Charleroi,hub>seed tuple

Consider the below three sentences found out from the corpus 

Budget airline Ryanair, which uses Charleroi as a hub, scrapped all
weekend flights out of the airport.





<ORG>, which uses <LOC> as a hub


All flights in and out of Ryanair’s hub at Charleroi airport were grounded on
Friday...


<ORG>'s hub at <LOC>


A spokesman at Charleroi, a main hub for Ryanair, estimated that 8000
passengers had already been affected


 <LOC>, a main hub for <ORG>


Use these patterns to search for new additional tuples 


Iterate the above process to find more seeds

San Jose State University

Entities in the seed pair are searched in sentences from the web or database.


The matched sentences are investigated to extract the context and these contexts are generalized to learn new patterns.


Relation extraction using seed or bootstrapping(  Semisupervised Relation Extraction)

An on-going but a helpful book resource about NLP
https://web.stanford.edu/~jurafsky/slp3/

Speech and Language Processing (3rd ed. draft) 

Gather a set of seed tuples that have relation R


Iterate

1. Find sentences with these pairs.


2. Look at the context between or around the pair and generalize the context to create patterns.


3. Use the pattern to search for more pairs.

Learn Before

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