Support Vector Machine
Active Learning with Applications to Text Classification

Motivation

Pool Based Active Learning

The Querying Function

Support Vector Machines

Version Space

Version Space

Version Space

Version Space

Choosing the Query

Choosing the Query

Choosing the Query: Approximation I

Summary of Methods

Choosing the Query: Approximation I

Choosing the Query: Approximation II

Choosing the Query: Approximation II

Choosing the Query: Approximation II

Choosing the Query: Approximation II

Summary of Methods

Simple vs Ratio

Simple vs Ratio

Summary of Methods

Experiments

Reuters Newswire

Reuters Newswire

Comp.* Newsgroups

Newsgroups: IBM and Misc

Reuters: Transduction

Conclusions

Reuters: Different Pool Sizes