Hang Cui et al.
NUS at TREC-13 QA Main Task
8/20
Learning
Relation Similarity
We need a measure to find the similarity between two different paths.
Adopt a statistical method to learn similarity
from past QA
pairs.
Training
data preparation
Around 1,000 factoid question-answer pairs from
the past two
years TREC QA task.
Extract all relation paths between all non-trivial
words
2,557 path pairs.
Align the paths according to identical anchor
nodes.