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From: jay@isis.UUCP (Jay)
Newsgroups: net.database
Subject: full text database systems
Message-ID: <362@isis.UUCP>
Date: Tue, 4-Mar-86 00:44:45 EST
Article-I.D.: isis.362
Posted: Tue Mar  4 00:44:45 1986
Date-Received: Fri, 7-Mar-86 04:55:06 EST
Distribution: net
Organization: University of Denver Math and Computer Science
Lines: 31

I was new to the net when I last posted this, and it could be that
I did it incorrectly, since I didn't get any answers.  On the other
hand, maybe nobody had anything to say.

Be that as it may, I'm trying again just to make sure.  Sorry in
advance if it's a bother to anybody.

	I am interested in the methods used to create full text retrieval
databases - e.g. select articles based on words in an article.  Specifically,
is there some general place I can go to get info on design/implementation of
such a system?  Detailed questions such as article storage vs. concordance
storage vs. query processing vs. on and on.

    /* elaboration on original posting */
	For example.  Westlaw (TM?), the court case on-line searching
system, allows a query to be built interactively, and a (set of) database(s)
selected (being the state in question, or the federal court system), and
the system goes off and finds all cases which contain the words in the query.
Now the system must be maintaining some kind of a concordance of words,
with associated word placement information to handle the connectives that
the query language allows, and probably uses relational logic to handle
the query processing.  What I am interested in is more complete discussion
of the organization and processing theories of such systems, and whether
basic database functions/systems/?? are available commercially (or in the
PD, although doubtful), or whether the ones that are out there are built
from scratch.

	Any help out there?

Jay Batson
{hao, nbires} isis!jay