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
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?
Our Approach
Example over BLS Sources
Key Challenges
PPT Slide
On-going Work
Longer-Term Future Work
Anurag Singla’s Demo
Email: gravano@cs.columbia.edu
Home Page: http://www.cs.columbia.edu/digigov