Data Cleaning

28 novembro 2014, 14:00 • Helena Galhardas

• Motivation
• Application Contexts
• Methodology of the data cleaning process
• Main tasks 
• Dimensions
• Taxonomy of the data quality problems
• Tools.

Creating Schema Mappings (cont.)

27 novembro 2014, 14:30 • Helena Galhardas

Creating schema mappings:

• Components of a schema matching system: matchers, combiner, constraint-enforcer, match-selector
• Applying machine learning to enable the schema matcher to learn.

String matching

27 novembro 2014, 11:00 • Diogo Ribeiro Ferreira

• Exercícios sobre string matching
• Métricas de similaridade: Jaro, Jaro-Winkler, e Jaccard
• Edit distance

Creating Schema Mappings (cont.) and Data Cleaning

27 novembro 2014, 09:30 • Helena Galhardas

Creating schema mappings:

• From matches to mappings: CLIO query discovery algorithm.

Data Cleaning: introduction. 

String matching

27 novembro 2014, 08:00 • Diogo Ribeiro Ferreira

• Exercícios sobre string matching
• Métricas de similaridade: Jaro, Jaro-Winkler, e Jaccard
• Edit distance