database

Code Event: How to open a coffee shop in Halifax in 3 minutes

  • Posted on: 28 January 2015
  • By: warren
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How to open a coffee shop in Halifax in 3 minutes
Code Event Halifax
Theater B, Tupper Building, Dalhousie University
January 30th, 2015, 7PM
 
In this talk I will demonstrate the power and value of open data by showing how an entrepreneur can choose a location to open a new coffee shop in Halifax using data-sets available on the Halifax and Canada Open Data Portals. Specifically, we will locate an available rental space for the coffee shop while keepings in mind the locations of potential competitors and customers.
 
Slides are available here.
 
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Paper at VLDB 2006: Multi-column substring matching for database schema translation

  • Posted on: 15 August 2006
  • By: warren
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Multi-column substring matching for database schema translation,
Wednesday, September 13, 2006, 12:00pm-12:30pm
 
Abstract: We describe a method for discovering complex schema translations involving substrings from multiple database columns. The method does not require a training set of instances linked across databases and it is capable of dealing with both fixed-and variable-length field columns. We propose an iterative algorithm that deduces the correct sequence of concatenations of column substrings in order to translate from one database to another. We introduce the algorithm along with examples on common database data values and examine its performance on real-world and synthetic datasets.