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Indexing and Retrieval in the CSTR Electronic Library

As noted above, the primary engine for information storage and retrieval in the CSTR library is the POSTGRES next-generation DBMS. POSTGRES supports user-defined abstract data types, user-defined functions, a rules system, and many of the features of Object-Oriented DBMS (including inheritance and methods via functions in both the query language and conventional programming languages) that make it suitable to extensions intended to support advanced information retrieval in the DBMS.

We have been using these features of POSTGRES to provide advanced indexing and retrieval techniques for the electronic library system. This section will describe the processes used in the current version of the Lassen indexing and retrieval system, and also provide a glimpse of some future plans for further support of IR methods in the DBMS.




Wed Mar 2 13:42:59 PST 1994