Return-Path: Delivered-To: apmail-jakarta-lucene-user-archive@apache.org Received: (qmail 93283 invoked from network); 25 Sep 2002 19:39:28 -0000 Received: from unknown (HELO nagoya.betaversion.org) (192.18.49.131) by daedalus.apache.org with SMTP; 25 Sep 2002 19:39:28 -0000 Received: (qmail 4350 invoked by uid 97); 25 Sep 2002 19:40:05 -0000 Delivered-To: qmlist-jakarta-archive-lucene-user@jakarta.apache.org Received: (qmail 4326 invoked by uid 97); 25 Sep 2002 19:40:04 -0000 Mailing-List: contact lucene-user-help@jakarta.apache.org; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Help: List-Post: List-Id: "Lucene Users List" Reply-To: "Lucene Users List" Delivered-To: mailing list lucene-user@jakarta.apache.org Received: (qmail 4314 invoked by uid 98); 25 Sep 2002 19:40:03 -0000 X-Antivirus: nagoya (v4218 created Aug 14 2002) Errors-To: Date: Wed, 25 Sep 2002 12:39:20 -0700 Subject: Re: Comparing Intermedia and Lucene Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v546) From: Peter Carlson To: "Lucene Users List" Content-Transfer-Encoding: 7bit In-Reply-To: Message-Id: <7CB454F0-D0BE-11D6-9574-003065AB94BC@bookandhammer.com> X-Mailer: Apple Mail (2.546) X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N X-Spam-Rating: daedalus.apache.org 1.6.2 0/1000/N Can you share you code? We would love to add it to the contributions area. --Peter On Wednesday, September 25, 2002, at 11:39 AM, Joshua O'Madadhain wrote: > On Wed, 25 Sep 2002, Peter Carlson wrote: > >> I have used intermedia in the past and found that it had a few >> advantages and disadvantages compared to Lucene. >> >> Advantages of Intermedia >> 4) Supports term expansion and contraction >> >> Now items 3 and 4 of Intermedia advantages can be added as Features to >> Lucene, but are not currently. > > I'm not sure what you mean by "supports term expansion". In the IR > community, there are many different mechanisms for term expansion; > perhaps > in the database community the term is more restrictive. My > understanding > is that the only thing you need in order to be able to expand terms (or > queries) is to be able to modify queries, which you can certainly do > under > Lucene. (A research project of mine uses Lucene as the core for a > search > engine that does query expansion, among other things.) Yes, I had to > write some code to do this, but static term expansion, in which each > term > is expanded to a fixed list of other terms (which may be > specifiable/modifiable by administrators or users), is pretty > straightforward to code (my project used a considerably more > sophisticated > mechanism). > > If what you mean is that there is no specific API for term expansion in > Lucene, that's true, but I'm not sure how much value such an API would > add > to Lucene. > > Joshua O'Madadhain > > jmadden@ics.uci.edu...Obscurium Per > Obscurius...www.ics.uci.edu/~jmadden > Joshua O'Madadhain: Information Scientist, Musician, > Philosopher-At-Tall > It's that moment of dawning comprehension that I live for--Bill > Watterson > My opinions are too rational and insightful to be those of any > organization. > > > > > -- > To unsubscribe, e-mail: > > For additional commands, e-mail: > > > -- To unsubscribe, e-mail: For additional commands, e-mail: