際際滷

際際滷Share a Scribd company logo
Entity Linking
Ethan Zhou
Knowledge Base
Entity Relationship Model
https://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model#/media/File:ER_D
iagram_MMORPG.png
Chen et al., 1997
NER (Named Entity Recognition)
http://brat.nlplab.org/img/examples/train.txt-doc-109-small.png
(Example of NP chunker output)
Entity Linking
http://vyhledavani.sblog.cz/wp-content/uploads/2014/07/entities-expected1.png
http://vyhledavani.sblog.cz/wp-content/uploads/2014/07/entities-possible1.png
Brute Force Tactics
 faster system leverage linking features (Lin et al.)
 String/context matching
 Rao et al.
 Exact matches
 Partial matches
 Abbreviations
 Aliases
 Similarity
http://granitegrok.com/wp-content/uploads/2013/07/Question-Mark.jpg
Brute Force Tactics contd.
- Improvements
 Hashing vs. Linear Passes
 Similarity Calculations
 Dice Scoring
When force doesnt work
http://www.webdesigndev.com/wp-content/uploads/2015/03/121.jpg
Better Tactics?
Vinculum (Ling et al.)
More Improvements
 Candidate Listing
 Collective Contexts (Lin et al.)
 WikiGraph Statistics ranking (Rao et al.)
Edge Case(s)
 Unlinkable Entities
 Use Google Books N-grams corpus for differentiation
Works Cited
 Peter Pin-Shan Chen. English, Chinese and ER Diagrams, Data and Knowledge
Eng. 23 (1997) 5-16.
 Thomas Lin, Mausam, Oren Etzioni. Entity Linking at Web Scale.
 Delip Rao, Paul McNamee, Mark Dredze. Entity Linking: Finding Extracted
Entities in a Knowledge Base.
 Xiao Ling, Sameer Singh, Daniel S. Weld. Design Challenges for Entity Linking.

More Related Content

Entity Linking