[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

RE: xml search engine?

  • From: Walter Underwood <wunder@i...>
  • To: <martind@n...>, <xml-dev@x...>
  • Date: Sat, 1 Apr 2000 09:46:09 -0800

xml search application
At 11:03 PM -0500 3/31/00, Didier PH Martin wrote:
>Didier replies:
>Tell me if I am wrong but is the hit quality caused by the stemming
>technoloby?

Probably due to phrase inference and phrase searching, since most 
of the words in the query are already in root form (exceptions: 
"got", "causes"). Stemming certainly helps, as do good ranking
algorithms, page quality metrics, HTML parsers, etc.

>An other question: When will the infoseek engine return an XML document to a
>request? Is it planned, a work in progress, not envisioned at all?

Ultraseek Server has been doing that for about a year. We added it
to the text/plain parsable format that we've had for three years.
Surprisingly, the XML format has almost no advantages over text/plain
in practice (and it was my idea). We now recommend using our new 
Java API instead of writing your own parser for either format.

Here's an example of what the user-written code looks like for
the two formats (from memory).

Fragment of SAX DocumentHandler.endElement():

  if (elementName.equals("title")) { ...

Fragment of text/plain parser:

  if (line.startsWith("title:")) { ...

And so on. The two parsers were equally easy programming tasks.
That is a compliment to the SAX interface, I guess, but in this
application, all it meant was that one required the user to
find a SAX-compliant parser and the other was standalone.

If we were designing the parsable format today, we would use 
XML instead of text/plain. But it wouldn't make the format
marvelously more powerful, just slightly more standard.

wunder
-- 
--
Walter R. Underwood
Senior Staff Engineer
Infoseek Software, part of go.com
1-408-543-6946
wunder@i... (work)
http://www.best.com/~wunder/

***************************************************************************
This is xml-dev, the mailing list for XML developers.
To unsubscribe, mailto:majordomo@x...&BODY=unsubscribe%20xml-dev
List archives are available at http://xml.org/archives/xml-dev/
***************************************************************************

PURCHASE STYLUS STUDIO ONLINE TODAY!

Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced!

Buy Stylus Studio Now

Download The World's Best XML IDE!

Accelerate XML development with our award-winning XML IDE - Download a free trial today!

Don't miss another message! Subscribe to this list today.
Email
First Name
Last Name
Company
Subscribe in XML format
RSS 2.0
Atom 0.3
 

Stylus Studio has published XML-DEV in RSS and ATOM formats, enabling users to easily subcribe to the list from their preferred news reader application.


Stylus Studio Sponsored Links are added links designed to provide related and additional information to the visitors of this website. they were not included by the author in the initial post. To view the content without the Sponsor Links please click here.

Site Map | Privacy Policy | Terms of Use | Trademarks
Free Stylus Studio XML Training:
W3C Member
Stylus Studio® and DataDirect XQuery ™are products from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2013 All Rights Reserved.