Information Integration Luis Gravano Assistant Professor, Columbia Anurag Singla First-Year Ph.D. Student, Columbia External Collaborator: Vasilis Vassalos Assistant Professor, NYU

3/20/00


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Table of Contents

Information Integration Luis Gravano Assistant Professor, Columbia Anurag Singla First-Year Ph.D. Student, Columbia External Collaborator: Vasilis Vassalos Assistant Professor, NYU

Information Integration

My Research Background

Metasearchers: Single-Stop Access to Heterogeneous Text Sources

Main Metasearcher Tasks

Some of my Previous Work on Metasearchers

CARDGIS: Challenges for Information Integration

CARDGIS: Challenges for Information Integration

CARDGIS: Challenges for Information Integration

Varying Data Coverage and Granularity

Varying Data Coverage (I)

Varying Data Coverage (II)

Varying Data Coverage (III)

Varying Data Granularity

Granularity Hierarchy for Time Period

Granularity Hierarchy for Geographical Region

Granularity Hierarchy for Products

Some BLS Data Sets for our Demo (Gasoline Unleaded Regular, Average Price)

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

What Do We Show Users as Data Sets Available for Querying?

Our Approach

Example over BLS Sources

What Do We Show Users as Data Sets Available for Querying?

Key Challenges

PPT Slide

On-going Work

CARDGIS: Challenges for Information Integration

Longer-Term Future Work

Anurag Singla’s Demo

Author: Authorized User

Email: gravano@cs.columbia.edu

Home Page: http://www.cs.columbia.edu/digigov