Abstract
We designed a visual browser for log browsing, adopting the Hyperbolic Tree and Hyperbolic Cell to visualize log data. The Hyperbolic Tree provides a whole view of log data, showing quantitative change in the log data by focusing on a specified part. The Hyperbolic Cell expresses the time change of log data. This enables real-time investigation and comparison between log attributes. Our visual browser allows us to browse effectively, helping to check users' behavior within the network and to find traces of intrusion.