Google Refine 2.0 has been released.
From the website:
Google Refine is a power tool for working with messy data sets, including cleaning up inconsistencies, transforming them from one format into another, and extending them with new data from external web services or other databases. Version 2.0 introduces a new extensions architecture, a reconciliation framework for linking records to other databases (like Freebase), and a ton of new transformation commands and expressions.
Freebase Gridworks 1.0 has already been well received by the data journalism and open government data communities (you can read how the Chicago Tribune, ProPublica and data.gov.uk have used it) and we are very excited by what they and others will be able to do with this new release. To learn more about what you can do with Google Refine 2.0, watch…[screencasts]
If you don’t watch any videos this month, you have to watch http://www.youtube.com/watch?v=m5ER2qRH1OQ!
Google uses the term reconciliation but what is being demonstrated is mapping information to a subject representative.
Note that unlike topic maps, the basis (read properties) for that mapping is not disclosed, so it isn’t possible for a program or person to be sure to repeat the same mapping.