Technical Perspective: Building Knowledge Bases from Messy Data

Imagine the task of creating a database of all the high-quality specialty cafés around the world so you never have to settle for an imperfect brew. Relying on reviews from sites such as Yelp will not do the job because there is no restriction on who can post reviews there. You, on the other hand, are interested only in cafés that are reviewed by the coffee intelligentsia. There are several online sources with content relevant to your envisioned database. Cafés may be featured in well-respected coffee publications such as sprudge.com