Solr Unleashed – Mission Accomplished
This past Wednesday and Thursday (March 13th and 14th) OpenSource Connections held an on-site 2-day Solr training course called Solr Unleashed. We covered a broad range of Solr topics…
Visualizing StackOverflow Data: When Does Jon Skeet Answer Questions?
Last month we found the best time to ask a question on StackOverflow using the oft-missed ‘join’ feature in Solr. Numbers will get you far in isolating the top-performing…
Using Solrs New Atomic Updates
A while ago we created a sample index of US patent grants roughly 700k documents big. Adjacently we pulled down the corresponding multi-page TIFFs of those grants and made…
Getting started quickly with Hadoop and MapReduce
So heres the problem: Youve finally found a block of time to set down and get your head around Hadoop and MapReduce. You do a quick Google search for…
Finally! A Hadoop Hello World that isnt a Lame Word Count!
So I got bored of the old WordCount Hello World, and being a fairly mathy person, I decided to make my own Hello World in which I coaxed Hadoop…
The Anatomy of a DisMax Query
While debugging the functionality of a new query parser, I had the poor fortune rare opportunity to dig deep into Solrs search scoring code. I ended up learning a…
Why FoundationDB Might Be All Its Cracked Up To Be
When I first heard about FoundationDB, I couldnt imagine how it could be anything but vaporware. Seemed like Unicorns crapping happy rainbows to solve all your problems. As Im…
Lucene 4 Finite State Automata in 10 minutes (Intro & Tutorial)
\n \n Sample Automaton\n \n \n\n This article is intended to help you bootstrap your ability to work with Finite State Automata (note automata == plural of automaton). Automata…
Indexing StackOverflow in Solr
One thing I really like about Solr is that its super easy to get started. You just download solr, fire it up, and then after following the 10 minute…
Building Suggest-As-You-Type with Carrot2 Clustering
The first interaction that a customer has with your e-commerce web site is with the search box itself. So it is of utmost importance to make the user experience…
Using Solr Join to find the best time to ask questions on StackOverflow
So lets say that you have an important tech question that simply must be answered: “What’s the difference between JavaScript and Java?” Normally you would post it on StackOverflow…
Convenient Solr Feature: Facet over the same field multiple times with different filters
Did you know that you can facet over the same field more than once? Did you know that you can rename the facet field? Did you know that you…