Structuring Text within a Relational System

We introduce a preprocessor that uses a relational system and semantic modeling to impose structure on text. Our intent is to show that document retrieval applications can be easily developed within the relational model. We illustrate several operations that are typically found in information retrieval systems, and show how each can be performed in the relational model. These include keywording, proximity searches, and relevance ranking. We also include a discussion of an extension to relevance based on semantic modeling.