Slide 1

A scenario

OPAC Query Types

Importance of Known Item Queries

Problem Statement

Learning Architecture

Outline

Data Collection

 Data Collection

Judgments

Agreement levels

Outline

Query Classification Features

 Language Modeling

Bootstrapping

Features with search results

BLEU and NIST

Outline

Machine Learning Paradigms

Task 1: Query Classification

Task 2: Query Classification w/ search results

Task 3: Query Results Classification

Applications of Classifiers

Conclusions

Future Work and Acknowledgments

Consulting the librarian