A Wrapping Architecture for IR Systems to Mediate External Structured Document Sources

With Ihe growth of digital libraries and electronic publishing, many structured document sources are appearing and their efleclive mediation is an imporlanl research topic. In this paper, we propose a wrapping architecture for externally maintained struclured document sources. Our wrapping target is information retrieval systems (IRSs) that provide access to strucaured documenk We describe a wrapper construction method for such IRSs with limited functionality. A constructed wrapper enhances retneval facilities of Ihe underlying IRS and provides an object database view lo the mediator. We focus on determining whether the underlying IRS can support a given query. Then we discuss some research issues related to OUT wrapping architecture.