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Given that StackOverflow has moved over to Lucene.NET for search, the original question that I asked on this matter now has a completely different answer.

Specifically, some of the things I'd like to know are:

  • How are the indexes arranged?
  • What is the structure of the documents?
  • Was a custom scorer written to somehow weigh results differently based on vote data? If so, how was that scorer implemented?
  • What kind of boosts are applied and on what level?
  • Custom analyzers or no?
  • Anything else that might be relevant.
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closed as too localized by casperOne Feb 27 '13 at 3:42

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

I may answer this a bit later on, I'm not sure in how much detail - since there's quite a bit of domain knowledge and explanation required to understand why certain aspects are the way they are. Also, we're currently in flux at the moment, moving to a parser for our advanced terms is on my todo. – Nick Craver Feb 11 '11 at 0:46
@Nick Craver: Well, anytime you want to get around to it =P – casperOne May 1 '11 at 20:04
Update status: it's not! – Nick Craver Feb 27 '13 at 3:15
@nickcraver might change to ask about elastic search, as many of the concepts are carried over. When I'm at a proper computer I'll update. – casperOne Feb 27 '13 at 3:43

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