This post talks about using an agile implementation for data warehouse projects.
The latest version of Oracle NoSQL Database supports tabular data model, secondary indexing, security enhancements via Oracle Wallet integration, and data center enhancements. Oracle recently announced the release of version 3.0 of the distributed key-value database.
Arun Kejariwal, from Twitter, talked at Velocity Conf London last month about forecasting algorithms used at Twitter to proactively predict system resource needs as well as business metrics such as number of users or tweets. Given the dynamic nature of their data stream, they found that a refined ARIMA model works well once data is cleansed, including removal of outliers.