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Distance Metric Learning in Data Mining (Part I)
Fei Wang and Jimeng Sun
IBM TJ Watson Research Center
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Outline
Part I - Applications
Motivation and Introduction
Patient similarity application
Part II - Methods
Unsupervised Metric Learning
Supervised Metric Learning
Semi-supervised Metric Learning
Challenges and Opportunities for Metric Learning
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Outline
Part I - Applications
Motivation and Introduction
Patient similarity application
Part II - Methods
Unsupervised Metric Learning
Supervised Metric Learning
Semi-supervised Metric Learning
Challenges and Opportunities for Metric Learning
4
What is a Distance Metric?
From wikipedia
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Distance Metric Taxonomy
Distance Metric
Learning Metric
Distance
Characteristics
Linear
Nonlinear
Algorithms
Unsupervised
Supervised
Semi-
supervised
Fixed Metric
Numeric
Discrete
Continuous
Euclidean
Mahalanobis Categorical
