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问题 Lucene is an excellent search engine, but the .NET version is behind the official Java release (latest stable .NET release is 2.0, but the latest Java Lucene version is 2.4, which has more features). How do you get around this? 回答1: One way I found, which was surprised could work: Create a .NET DLL from a Java .jar file! Using IKVM you can download Lucene, get the .jar file, and run: ikvmc -target:library <path-to-lucene.jar> which generates a .NET dll like this: lucene-core-2.4.0.dll You can

问题 I'm looking for a complete guide to using Sphinx with PHP and MySQL. I'd like one that's a bit simpler and easygoing than the one provided on the site. I'm looking for a few concepts on how exactly it all works. I have a server with PHP, HTML, other data and a MySQL database. How would I go about setting up Sphinx to power the search and results being returned? I'd like to be able to pass my search terms to my PHP script and have it deal with Sphinx and return the data. P.S. I'm also open to

问题 Given an array like $clusters = array( "clustera" => array( '101', '102', '103', '104' ), "clusterb" => array( '201', '202', '203', '204' ), "clusterc" => array( '301', '302', '303', '304' ) ); How can I search for a server (e.g. 202) and get back it's cluster? i.e. search for 202 and the response is "clusterb" I tried using array_search but it seems that is only for monodimensional arrays right? (i.e. complains that second argument is wrong dataype if I give it $clusters) Many Thanks! 回答1:

问题 Given an array like $clusters = array( "clustera" => array( '101', '102', '103', '104' ), "clusterb" => array( '201', '202', '203', '204' ), "clusterc" => array( '301', '302', '303', '304' ) ); How can I search for a server (e.g. 202) and get back it's cluster? i.e. search for 202 and the response is "clusterb" I tried using array_search but it seems that is only for monodimensional arrays right? (i.e. complains that second argument is wrong dataype if I give it $clusters) Many Thanks! 回答1:

问题 I posed a question to Stackoverflow a few weeks ago about a creating an efficient algorithm to search for a pattern in a large chunk of text. Right now I am using the String function indexOf to do the search. One suggestion was to use Rabin-Karp as an alternative. I wrote a little test program as follows to test an implementation of Rabin-Karp as follows. public static void main(String[] args) { String test = "Mary had a little lamb whose fleece was white as snow"; String p = "was"; long

问题 i am looking for open source libraries which provide high performance faceted search / guided navigation for ecommerce sites our ecommerce platform is entirely built on .net and so i would prefer libraries which do provide .net apis performance is of utmost importance here... i checked out sphinx as well as solr but looking for better options as far as performance goes as per blogs sphinx takes an average of 5 - 6 seconds to perform the first level of faceted search which is unacceptable in a

问题 This is a question similar to the one here, but I figure that it would be helpful if I can recast it in a more general terms. I have a set of polygons, these polygons can touch one another, overlap and can take on any shape. My question is, given a list of points, how to devise an efficient algorithm that find which polygons are the points located? One of the interesting restriction of the location of the points is that, all the points are located at the edges of the polygons, if this helps.

问题 I can search for a String contained in an specific attribute if I use the following XPath /xs:schema/node()/descendant::node()[starts-with(@my-specific-attribute-name-here, 'my-search-string')] However, I'd like to search for ANY attribute containing* a String 回答1: Sample XML: <root> <element1 a="hello" b="world"/> <element2 c="world" d="hello"/> <element3 e="world" f="world"/> </root> Suppose, we need to select elements which have any attribute containing h . In this sample: element1 ,

问题 I was wondering if there is an easier way (or any way) to start a Browser with a Google search query. For example user can select a certain word or phrase and click a button and the activity will start the browser with the Google search query. Thank you. 回答1: You can do this quite easily with a few lines of code (assuming you want to search Google for 'fish'): String escapedQuery = URLEncoder.encode(query, "UTF-8"); Uri uri = Uri.parse("http://www.google.com/#q=" + escapedQuery); Intent

问题 Boosting by date field in solr is defined as: {!boost b=recip(ms(NOW,datefield),3.16e-11,1,1)} I looked everywhere (examples: Solr Dismax Config for Boost Scoring and Solr boost for multivalued date field and they all reference the SolrRelevancyFAQ), same definition that is used. But I found that this is not boosting my results sufficiently. How can I make this date boosting stronger? User is searching for two keywords. Both items contain both keywords (in same order) in both title and