VisiNav is a system to search and navigate web data.
On a conceptual level, VisiNav deals with objects. Objects can have attributes and links to other objects. For example, there are objects of type Person. A Person has a name; a Person knows another Person; a Person makes Documents; a Person is based near a Location.
The dataset in the online system has been collected from the web (view top 99 sources - requires SVG-capable browser). The combined dataset contains more or less arbitrary data (some of which is social networking data) and doesn't follow a fixed schema.
Now, the system allows for
You can visualise query results in a table, graph, map, or timeline view.
The following screencast demonstrates the capabilities of the system.
In summary, the system demonstrates how to combine data from multiple sources into a single unified view, how to search and navigate the aggregated dataset, and how to re-use query results from web data in external applications.