entity linking
TRANSCRIPT
Entity LinkingEthan Zhou
Knowledge Base
Entity Relationship Model
https://en.wikipedia.org/wiki/Entity%E2%80%93relationship_model#/media/File:ER_Diagram_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 cont’d.- Improvements Hashing vs. Linear Passes Similarity Calculations
Dice Scoring
When force doesn’t 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.