Data Matching

20 outubro 2016, 14:30 • Helena Galhardas

Record-oriented matching techniques:

• Rule-based matching
• Learning-based matching

• Sorted Neighborhood Method (SNM)
• Variant of SNM: Incremental Merge/Purge

• Recall, Precisin and F1-measure.

Lab 5: Working with Databases

20 outubro 2016, 13:00 • Diogo Ribeiro Ferreira

- Using PDI to read and write data from/to a database.

Lab 5: Working with Databases

18 outubro 2016, 15:30 • Diogo Ribeiro Ferreira

- Using PDI to read and write data from/to a database.

Schema mappings (cont.) and Introduction to Data Cleaning

17 outubro 2016, 15:30 • Helena Galhardas

Schema mappings:

• From matchings to mappings: query discovery algorithm (Clio system).
  
• Example.
  

• Motivation
• Application Contexts
• Data quality dimensions
• Taxonomy of the data quality problems
• Data quality process
• Main data quality tools
• Real-world examples.

Schema mappings (cont.) and Introduction to Data Cleaning

17 outubro 2016, 15:30 • Helena Galhardas

Schema mappings:

• From matchings to mappings: query discovery algorithm (Clio system).
  
• Example.
  

• Motivation
• Application Contexts
• Data quality dimensions
• Taxonomy of the data quality problems
• Data quality process
• Main data quality tools
• Real-world examples.