Category Archives: Lucene

why create jSearch?

Posted on June 10, 2004 by ajohnson

One of the comments posted to the blog entry introducing jSearch asked why I thought it needed to be created when a tool like nutch already exists. nutch is a massive undertaking, it’s aim is to create a spider and … Continue reading →

Posted in J2EE, Lucene, Open Source, Software Development | 5 Comments

Inverted Index

Posted on June 1, 2004 by ajohnson

Catching up on links… Matt Quail wrote about Lucene and it’s use of an inverted index a couple months ago and then today John Battelle linked to ‘backrub‘ (google before google existed) which also mentions the use of an inverted … Continue reading →

Posted in Lucene, Software Development | Leave a comment

Wanted: Extracting summary from HTML text

Posted on April 2, 2004 by ajohnson

As part of a project I’m working on I need to extract content from an HTML page, in some sense creating a short 200 character summary of the document. Google does a fantastic job of extracting text and presenting a … Continue reading →

Posted in J2EE, Lucene, Software Development | 5 Comments

Indexing Database Content with Lucene & ColdFusion

Posted on December 6, 2003 by ajohnson

Terry emailed me a couple days ago wondering how he could use ColdFusion and Lucene to index and then search a database table. Since we’re completely socked in here in Boston, I had nothing better to do today that hack … Continue reading →

Posted in ColdFusion, Lucene | 9 Comments

QueryParser … in NLucene

Posted on November 16, 2003 by ajohnson

Misleading title. I implemented the first of the examples that Erik Hatcher used in his article about the Lucene QueryParser, only I used NLucene. Lucene and NLucene are very similar, so if anything, it’s interesting only because it highlights a … Continue reading →

Posted in .NET, J2EE, Lucene, Software Development | 7 Comments

Lucene’s Query API

Posted on November 15, 2003 by ajohnson

Erik Hatcher wrote an excellent article on the specifics of Lucene’s Query API, specifically on how the QueryParser class uses the Query subclasses including TermQuery, PhraseQuery, RangeQuery, WildcardQuery, PrefixQuery, FuzzyQuery and BooleanQuery. Very useful stuff. Not unsurprisingly, he’s also writing … Continue reading →

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Highlighting search results with Lucene 1.3

Posted on September 24, 2003 by ajohnson

Mark (who looks like a pretty smart cookie) has put together some code that gives Lucene 1.3 users the ability to highlight terms in searched documents. You can read more about it here and download the software (zip) here.

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ColdFusion Developer’s Journal: Writing a Java-based CFX Tag

Posted on August 13, 2003 by ajohnson

The second of my articles in ColdFusion Developer’s Journal is available on the website now: Extending ColdFusion with Java: Writing a Java-based CFX Tag. It’s a follow up on the last article I wrote; this one explains how you can … Continue reading →

Posted in ColdFusion, J2EE, Lucene | Leave a comment

Lucene.Net 1.3.rc1 now available

Posted on August 5, 2003 by ajohnson

From lucene-user: Lucene.Net search engine: “Lucene.Net is a complete up to date .NET port of Jackarta Lucene a hight-performance, full-featured text search engine written entirely Java. See http://jakarta.apache.org/lucene for more info on Jakarta Lucene.“

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Lucene Index Browser

Posted on July 14, 2003 by ajohnson

From the lucene-user list today: Lucene Index Browser: Luke is a handy development and diagnostic tool, which accesses already existing Lucene indexes and allows you to display their contents in several ways: · browse by document number, or by term … Continue reading →

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