Information Filtering by Using Materialized Skyline View

We consider information filtering methods that use materialized skyline view. Skyline query contains data objects that are preferable for each user even though users' preference is different for each. We propose various kinds of skyline queries such as skyline on relatively high-dimensional numerical databases, skyline on spatial databases, and skyline set. We materialize such skyline information to make concise answer for each query. We also considered methods for maintaining materialized skyline view up to date to handle an update for a numerical database.