O'Reilly logo

Beautiful Data by Toby Segaran, Jeff Hammerbacher

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Beyond the Data Warehouse

According to IDC, the digital universe will expand to 1,800 exabytes by 2011. The vast majority of that data will not be managed by relational databases. There's an urgent need for data management systems that can extract information from unstructured data in concert with structured data, but there is little consensus on the way forward.

Natural language data in particular is abundant, rich with information, and poorly managed by a data warehouse. To manage natural language and other unstructured data, often captured in document repositories and voice recordings, organizations have looked beyond the offerings of data warehouse vendors to various new fields, including one known as enterprise search.

While most search companies built tools for navigating the collection of hyperlinked documents known as the World Wide Web, a few enterprise search companies chose to focus on managing internal document collections. Autonomy Corporation, founded in 1996 by Cambridge University researchers, leveraged Bayesian inference algorithms to facilitate the location of important documents. Fast Search and Transfer (FAST) was founded in 1997 in Norway with more straightforward keyword search and ranking at the heart of its technology. Two years later, Endeca was founded with a focus on navigating document collections using structured metadata, a technique known as "faceted search." Google, seeing an opportunity to leverage its expertise in the search domain, introduced an ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required