cruz - graphs-semantic web

Cruz- - I F Cruz Data Mining and Exploration Middleware Workshop 1 Semantic Data Integration Isabel F Cruz University of Illinois at Chicago I F

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: I. F. Cruz Data Mining and Exploration Middleware Workshop 1 Semantic Data Integration Isabel F. Cruz University of Illinois at Chicago I. F. Cruz Data Mining and Exploration Middleware Workshop 2 Overview ¡ Motivation: Two Applications ¡ Data Heterogeneity, Interoperability, and Data Integration ¡ Declarative Data Integration in GIS ¡ Two Applications ¡ Conclusions I. F. Cruz Data Mining and Exploration Middleware Workshop 3 Application 1 – Presidential Elections 2000 ¡ Build aggregates of the data for the fifty states, at different granularity levels: e.g., county, municipality, ward ¡ Election data is in XML ¡ Each state has a different structure for its election results ¡ Single interface to display the results in all the states I. F. Cruz Data Mining and Exploration Middleware Workshop 4 Application 2 – Land Use ¡ WLIS (Wisconsin Land Information System): web-based system linking data from distributed, heterogeneous data sources ¡ Case study: land use codes ¡ Sample query: “ Find all the agricultural lands in Dane and Racine counties .” ¡ Different authorities use different land use coding systems leading to syntactic and semantic heterogeneities FEDERAL STATE REGIONAL PLANNING COMMISSION COUNTY VILLAGE TOWN CITY I. F. Cruz Data Mining and Exploration Middleware Workshop 5 Overview ¡ Motivation: Two Applications ¡ Data Heterogeneity, Interoperability, and Data Integration ¡ Declarative Data Integration in GIS ¡ Two Applications ¡ Conclusions I. F. Cruz Data Mining and Exploration Middleware Workshop 6 Heterogeneity Modeling Power Types of Heterogeneities [Bishr 99] Syntactic Schematic Semantic I. F. Cruz Data Mining and Exploration Middleware Workshop 7 Heterogeneity Modeling Power Types of Heterogeneities [Bishr 99] Syntactic Schematic Semantic ¡ Different data models ¡ Different data formats ¡ Unifying models, formats I. F. Cruz Data Mining and Exploration Middleware Workshop 8 Heterogeneity Modeling Power Types of Heterogeneities [Bishr 99] Syntactic Schematic Semantic ¡ Different schemas ¡ Schema integration I. F. Cruz Data Mining and Exploration Middleware Workshop 9 Heterogeneity Modeling Power Types of Heterogeneities [Bishr 99] Syntactic Schematic Semantic ¡ Naming heterogeneity: same entity, different names ¡ Mapping using thesaurus ¡ Cognitive heterogeneity: entity performs multiple roles in different contexts ¡ Mapping using rules and constraints I. F. Cruz Data Mining and Exploration Middleware Workshop 10 Levels of Interoperability [Bishr 99] System A System B Application Semantics Data Model DBMS Spatial Data Files Hardware & OS Network Protocols I N T E R O P E R A B I L I T Y Application Semantics Data Model DBMS Spatial Data Files Hardware & OS Network Protocols System-level to Semantics I. F. Cruz Data Mining and Exploration Middleware Workshop 11 Levels of Interoperability [Bishr 99] System A System B Application Semantics Data Model DBMS Spatial Data Files Hardware & OS Network Protocols...
View Full Document

This note was uploaded on 02/13/2012 for the course CS 91.510 taught by Professor Staff during the Fall '09 term at UMass Lowell.

Page1 / 56

Cruz- - I F Cruz Data Mining and Exploration Middleware Workshop 1 Semantic Data Integration Isabel F Cruz University of Illinois at Chicago I F

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online