Difference between revisions of "Vulcan/TextualEvidenceFinder"
From Knowitall
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<li>Keyword queries -- Extract keywords from the query sentence [TBD: Stemming? Stopword removal?]</li> | <li>Keyword queries -- Extract keywords from the query sentence [TBD: Stemming? Stopword removal?]</li> | ||
<li>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.</li> | <li>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.</li> | ||
| − | The system will be given a set of rules that specify how to convert a tuple into different template queries. | + | The system will be given a set of rules that specify how to convert a tuple into different template queries. Start with a simple rule |
</ol> | </ol> | ||
| + | |||
; Examples | ; Examples | ||
<pre> | <pre> | ||
| + | |||
Input: | Input: | ||
| − | + | Sentence: Iron nail is a good conductor of electricity | |
| + | Tuples: (iron nail, is a good conductor of, electricity) | ||
Output: | Output: | ||
| − | Q1: (iron *, is a good conductor of, electricity) //Template query | + | Q1: (iron *, is a good conductor of, electricity) //Template query |
| − | Q2: (* nail, 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 | + | Q3: (iron nail, is a * conductor of, electricity) //Template query |
| − | Q4: iron * conductor * electricity //Template query | + | Q4: iron * conductor * electricity //Template query |
| − | Q5: iron or conductor or electricity //Keyword query | + | Q5: iron or conductor or electricity //Keyword query |
</pre> | </pre> | ||
Revision as of 21:18, 20 August 2013
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
System Architecture: Weak Evidence Finder
Query Generator
The query generator outputs two types of queries for each proposition:
- Keyword queries -- Extract keywords from the query sentence [TBD: Stemming? Stopword removal?]
- 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. Start with a simple rule
- 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
Solr/Lucence Layer
Open IE 4.0
Use Open IE 4.0.
