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Machine Learning Real World Applications Rob Jasper Intelligent Results http://fac-staff.seattleu.edu/jasperr [email_address]
Goals ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Overview ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Machine Learning ,[object Object],[object Object]
Machine Learning Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Unsupervised versus Supervised Learning ,[object Object],[object Object],[object Object],[object Object],[object Object]
Problem Setting ,[object Object],[object Object],[object Object],[object Object],[object Object]
Concepts and training examples Instance Space X + + + + c - - - - Training examples
General Model of Learning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Error of hypothesis Instance Space X + + + + c - h - - - Where c and  h disagree
An Operational Model of Machine Learning Learner Training Data Model Execution Engine Model Tagged Data Production Data
Machine Learning in Natural Language Processing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
PoS Tagging ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Named Entity Extraction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Key Phrase Extraction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Spelling Correction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Text Categorization ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Document Representation ,[object Object],Phish Page Russell Trey Record CD begin short tour ... 14 3 2 6 2 3 1 1 3 ... ,[object Object],[object Object],[object Object]
Vector Example ,[object Object],Phish Trey 6 14 d1 d2
Vector Comparison Phish Trey 6 14 d1 d2
kNN classification ,[object Object],? M M M M M S S S S S B B B B B K=1 K=5 K=10 S Sports M Music B Business
Rocchio Classifier Music m m m m m m M Threshold Characteristic Vector Sports s s s s s s s S Business b b b b B b
Rocchio Formula
Rocchio Example Phish Sales + + + + - - - - Centroid+ Centroid- Rocchio
Support Vector Machines + + + + + + + + - - - - - - - - - -
Issues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Bagging ,[object Object],[object Object],[object Object],Music Training Data T2 T1 T3 T4 T5 Tn
Boosting ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
AdaBoost Algorithm
Summary ,[object Object],[object Object],[object Object],[object Object]
Resources ,[object Object],[object Object],[object Object]

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Machine Learning Applications in NLP.ppt