Search Recall RRS feed

  • Question

  • Hi,

    is it possible to configure FAST Search Server 2010 for SharePoint such that absolutely no filtering of search results will occur? What I'm trying to determine is if it is possible to have a situation where a user would get exactly the same number of results if he/she was to (i) undertake a simple Windows explorer search (e.g. all files in a folder structure containing 'Joe Bloggs') or (ii) search for 'Joe Bloggs' (in the index covering the aforementioned folder structure) using FAST Search Server (with no use of synonyms)?

    To ask the question a different way, can FAST Search Server 2010 for SharePoint be absolutely relied upon as a search tool for legal compliance purposes where all files/documents containing searched for criteria must be returned.

    Thanks, Shane

    Friday, March 4, 2011 10:15 AM

All replies

  • The default max number of results for FAST ESP was 4020, which it is possible to increase. The parameter to increase this has been omitted from the FAST for SharePoint configuration files, but I'm sure it can be readded. Still, there is a hard limit.

    That said, FAST will return the exact count of how many documents a particular user has access to, even though you can't page to it.

    I guess you could easily get around this by doing time interval searches where none of the intervals would exceed the 4020 limit. For example execute one search per hour, and concatenate the results.

    You can also disable synonyms and other language features as lemmatization in a query.

    The only issue is can you craft a search based on another users credentials? Don't think so, but you could always reset the password and log in as the person in question.

    Mikael Svenson

    Search Enthusiast - MCTS SharePoint/WCF4/ASP.Net4 -
    Saturday, March 5, 2011 6:40 PM
  • Thanks Mikael.

    Are you able to shed some light on the the legal compliance part of my question?

    All the best, Shane

    Monday, March 7, 2011 9:28 AM
  • I have verified that the solution I propose with using range filters will work and allow 100% recall, and it can be relied on to produce the exact same answers as a "windows explorer search".

    But it's more powerful and can retrieve even more documents as it supports more document formats and linguistic features which allows it to match more forms of a certain word. This is useful for plural forms etc. and I assume even in legal matters that this is something you would want.

    The only issue I can see, as in my previous post, is how to impersonate a particular user when executing this 100% recall search on the users behalf. And you would have the same issue with "windows explorer", as you would need to log in as the user. That said, it's an issue which can be solved.

    Let me know if you need more technical steps as to how you would implement a 100% recall solution.


    Search Enthusiast - MCTS SharePoint/WCF4/ASP.Net4 -
    Monday, March 7, 2011 9:02 PM