Comments for Flax Blog

Comment on FAST drops Linux & Unix support – no surprise? by charlie

charlie — Fri, 12 Mar 2010 12:53:44 +0000

We’re happy to support customers running both Windows and Linux (and in fact Solaris and most other operating systems) but we prefer Linux/Unix as it’s much easier to find and solve performance bottlenecks: it’s also a lot easier to calculate scaling costs when you don’t have license fees to worry about!

Comment on FAST drops Linux & Unix support – no surprise? by Haniff Din

Haniff Din — Thu, 25 Feb 2010 21:18:43 +0000

I’ve been always very impressed with FAST ftp search back in the day, now they’ve been sold to someone like Microsoft, it’s a shame. They only have one agenda but to push it’s products under licences. This signals the death of Fast in my eyes!
Same happened with Hotmail, it originally was fast and reliable using UNIX – then Microsoft took over and well….you can guess the rest…

Comment on Predictions by Harry

Harry — Fri, 22 Jan 2010 13:35:15 +0000

Well, surely there is some good news for enterprise search lovers in this New Year !! The release of much awaited Certified Distribution for Solr1.4 is finally available for download. LucidWorks for Solr 1.4 is a major update for Solr along with new additions – a reference guide and an installer and update service. You must check it out :
http://www.lucidimagination.com/Downloads/LucidWorks-for-Solr
http://www.lucidimagination.com/Downloads/LucidWorks-for-Solr

Comment on When real-time search isn’t by charlie

charlie — Fri, 20 Nov 2009 09:24:57 +0000

It depends what you mean by ‘constantly changing’! We have various customers working with daily news content for example, where stories might change during the day, and in this case we might store a persistent ID for a particular news story so we can replace the indexed terms later. One advantage we have is that updates to the index are immediately searchable.

Comment on When real-time search isn’t by Jeff

Jeff — Thu, 12 Nov 2009 21:56:57 +0000

How does Flax handle constantly changing content?

Comment on Open source data integration and file format translation by chris

chris — Thu, 23 Apr 2009 12:51:39 +0000

If you are looking for open source data integration specifically designed to support semantic or enterprise search project challenges, then here are a few links that might be of interest:
http://www.eclipse.org/smila ….this project will http://aperture.sourceforge.net/

Comment on Xapian Search Architecture by yoa

yoa — Mon, 20 Apr 2009 19:53:53 +0000

Thanks for answering, I appreciate it, I’m working on my thesis for engineer and I work with xapian but is new for me.

thank you again,
Yoa

Comment on Xapian Search Architecture by Richard Boulton

Richard Boulton — Mon, 20 Apr 2009 19:35:29 +0000

yoa – if you want to discuss the weighting model used by Xapian, the Xapian mailing list, or the Xapian IRC channel, would probably be better places: see http://xapian.org/lists and #xapian on irc.freenode.net But briefly, BM25 uses the frequency of terms in both documents and across the database as a whole, as well as information on the document length and the frequency of terms in the query. ie – it uses a superset of the statistics used by tf-idf, and combines them differently. The formula has performed a lot better in many retrieval experiments, and has some sound theoretical basis justifying its derivation.

Comment on Xapian Search Architecture by yoa

yoa — Mon, 20 Apr 2009 18:27:15 +0000

Thanks for answering, but the inverse frequency is used to calculate the weight BM25?. I studied the BM25 and I think only works with the importance of frequency of occurrence.
I hope you answer

Yoa

Comment on Xapian Search Architecture by Tom

Tom — Mon, 20 Apr 2009 18:06:38 +0000

Yoa, Xapian uses BM25, as documented on the Xapian website.

http://xapian.org/docs/bm25.html

Tom