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58 discussions - 197 posts

  • (Cross-posted from solr-users) Ahoy ahoy! Does anyone have any experiences or stories they can share about how SSDs impacted search performance for better or worse? I found a Lucene SSD performance ...
    Rich CariensRich Cariens
    Aug 22, 2011 at 4:50 pm
    Aug 26, 2011 at 8:18 am
  • We are examining the possibility of using Lucene to provide Text Search capabilities for a 625 million row DB2 table. The table has 6 fields, all which must be stored in the Lucene Index. The largest ...
    Bennett, TonyBennett, Tony
    Aug 15, 2011 at 6:40 pm
    Aug 18, 2011 at 1:10 pm
  • Hi All, I'm currently testing the new DocumentsWriterPerThread in Lucene 4.0.0 (latest build). I use the wikipedia full english article dump as a source for indexing and the ThreadedIndexWriter ...
    Pierre-Henri ToussaintPierre-Henri Toussaint
    Aug 3, 2011 at 2:17 pm
    Aug 4, 2011 at 5:27 pm
  • Greetings, In the past (Lucene version 2.x) I successfully used MultiSearcher.subsearcher() to identify the searchable within a MultiSearcher to which a hit belonged. In moving to Lucene 3.3, ...
    Joseph MarkAnthonyJoseph MarkAnthony
    Aug 29, 2011 at 6:54 pm
    Sep 3, 2011 at 5:23 am
  • Hi, I'm having trouble thinking of a way to effectively group clauses to form sub queries. For example, I need to handle the following query: Marketing AND Smith OR Davies. Lucene is currently ...
    Jim SwainstonJim Swainston
    Aug 3, 2011 at 1:26 pm
    Aug 5, 2011 at 8:45 am
  • 4

    LSI

    hi, I want to use LSI for clustring ducuments indexed with lucene, I dont know how, plz help me thanks,
    ZarrinkalamZarrinkalam
    Aug 29, 2011 at 1:56 pm
    Sep 7, 2011 at 11:35 pm
  • I have content such as "E71.0" and when I enter a search query of "E71" I would like it to match that document. At the moment though it only matches that document if I enter "E71*" or "E71.0". What's ...
    SBSSBS
    Aug 23, 2011 at 2:36 am
    Aug 26, 2011 at 12:47 pm
  • Hi all. Suppose I am searching for - 限定 In 3.0, QueryParser would parse this as a phrase query. In 3.3, it parses it as a boolean query, but offers an option to treat it like a phrase. Why would the ...
    TrejkazTrejkaz
    Aug 17, 2011 at 9:41 pm
    Aug 22, 2011 at 1:27 am
  • Dear all I'm a beginner and I need to calculate Precision and recall. I do it by Lucene and java. I found code for caculating Precision and Recall in lucene, but unfortunatly when I run this, program ...
    V RV R
    Aug 10, 2011 at 2:25 pm
    Aug 12, 2011 at 4:21 pm
  • Hi All, I need your help to understand how I can have Lucene applied to the following business scenario. Question is in RED *Business Scenario:* Analyze newly created document "A" with existing ...
    Saurabh GokhaleSaurabh Gokhale
    Aug 30, 2011 at 4:55 pm
    Sep 1, 2011 at 7:01 pm
  • Dear friends Hi!! I used Lucene to index some documents but unfortunetly I am a begginer and there is a bug!! it is here! what should I do? thanyou all.
    Josh AmJosh Am
    Aug 29, 2011 at 9:59 am
    Aug 29, 2011 at 1:55 pm
  • Hi All I have a question regarding MaxFieldLength. Is it a limit for number of tokens in 1 field per document or entire index? Example: If MaxFieldLength is set to 100 and I add a document which has ...
    Roz devRoz dev
    Aug 28, 2011 at 1:45 am
    Aug 28, 2011 at 1:30 pm
  • Hello All, I observed some unexpected behavior using StandardAnalyzer to parse the query. Here is the demonstration. I am passing the query as (key:xyz_abc) && (text:blabla) Expecting the parsed ...
    Srinu HelloSrinu Hello
    Aug 22, 2011 at 7:04 am
    Aug 22, 2011 at 2:54 pm
  • Hi everyone, I want to use Lucene to retrieve videos through their meta data: title, description, tags and comments. Which query type should I use? How can I make Lucene effective? Any help would be ...
    Lei PangLei Pang
    Aug 19, 2011 at 5:06 am
    Aug 19, 2011 at 9:23 am
  • My organization is looking to solve a difficult problem, and I believe that Lucene is a close fit (although perhaps it is not). However I'm not sure exactly how to approach this problem. The problem ...
    Josh RehmanJosh Rehman
    Aug 17, 2011 at 3:05 am
    Aug 17, 2011 at 6:34 pm
  • Hello, I am currently adding Lucene (in combination with hibernate search) to a medical record service. As such, I need to encrypt the indexes so that unauthorized people don't have access to them by ...
    Chris ZakianChris Zakian
    Aug 12, 2011 at 7:16 pm
    Aug 14, 2011 at 11:51 am
  • Hi all. I am writing a custom query parser which strongly resembles StandardQueryParser (I use a lot of the same processors and builders, with a slightly customised config handler and a completely ...
    TrejkazTrejkaz
    Aug 5, 2011 at 1:06 am
    Aug 8, 2011 at 5:10 am
  • Hi All, As I add new clauses to the Boolean Query, my queryNorm value goes down which is impacting the results. For example: (The complete stand alone application attached with the email. I am using ...
    Saurabh GokhaleSaurabh Gokhale
    Aug 2, 2011 at 10:39 pm
    Aug 3, 2011 at 11:59 pm
  • Hey guys, We have been working hard on building a helpful site for Lucene Architecture and Documentation. We have been updating the content and working on making it really helpful over the last few ...
    Vineet SinhaVineet Sinha
    Aug 30, 2011 at 8:29 pm
    Aug 31, 2011 at 2:08 pm
  • Hello, In our indexes we have a field that is a combination of other various metadata fields (i.e. subject, from, to, etc.). Each field that is added has a null position at the beginning. As an ...
    IkoellikerIkoelliker
    Aug 26, 2011 at 4:30 pm
    Aug 29, 2011 at 3:30 pm
  • hello. there is this piece of code in the book "lucene in action" : Directory dir = new FSDirectory(new File(indexDir), null); but class FSDirectory is an abstract class and cannot be instantiated ...
    Mostafa HadianMostafa Hadian
    Aug 24, 2011 at 2:21 pm
    Aug 25, 2011 at 6:13 am
  • Hi all. We are using IndexWriter with no limits set and managing the commits ourselves, mainly so that we can ensure they are done at the same time as other (non-Lucene) commits. After upgrading from ...
    TrejkazTrejkaz
    Aug 23, 2011 at 4:18 am
    Aug 24, 2011 at 12:03 am
  • hi all I am interested in vertical crawler. But it seems this project is not very active. It's last update time is 11/16/2009
    Li LiLi Li
    Aug 23, 2011 at 8:18 am
    Aug 23, 2011 at 10:49 am
  • Hi, I have a dictionary of multi-word phrases and I'd like to analyze documents such that anything that appears in the dictionary will be treated as one single token. For example, if the dictionary ...
    Xiyang ChenXiyang Chen
    Aug 21, 2011 at 7:52 pm
    Aug 22, 2011 at 1:45 pm
  • Hi Where can I find a guide for building analyzers, filters and tokenizers? Saar
    Saar CarmiSaar Carmi
    Aug 22, 2011 at 7:12 am
    Aug 22, 2011 at 11:29 am
  • Hello, I set a field which contains a name of a person to Field.Index.ANALYZED. I use the StandardAnalyzer for the seaching part and in general it works very well. But I found one strange case which ...
    Alain SahliAlain Sahli
    Aug 17, 2011 at 7:39 am
    Aug 18, 2011 at 8:24 am
  • Hi All, In my application, we have been maintaining lucene index for the 3 years worth of data. (more than 70GB of single lucene index). To improve performance, recently it was decided to break ...
    Saurabh GokhaleSaurabh Gokhale
    Aug 15, 2011 at 5:15 pm
    Aug 17, 2011 at 5:08 pm
  • Our document base includes terms which are in fact codes that may contain dashes and slashes such as "M1234/5" and "12345-00". Presently Lucene appears to breaking up these codes according to the ...
    SBSSBS
    Aug 16, 2011 at 10:16 pm
    Aug 17, 2011 at 4:58 pm
  • How can I use Lucene Java to search for words containing accents or umlauts such as Hürthle, Sézary or Waldenström? I don't get any matches when I use the plain characters without accents. Is it a ...
    SBSSBS
    Aug 11, 2011 at 4:30 am
    Aug 16, 2011 at 10:09 pm
  • Hi I'm having some issues with queries using different fuzziness values and StandardAnalyzer for a field: 1) *+any:climate~0.8 *, this query works ok returning results. Checking in Luke the rewritten ...
    Jose garciaJose garcia
    Aug 24, 2011 at 3:30 pm
    Aug 31, 2011 at 2:17 pm
  • Dear friends Hi!! I used Lucene to index some documents but unfortunetly I am a begginer and there is a bug!! it is here! Exception in thread "main" *java.lang.NullPointerException* at ...
    Josh AmJosh Am
    Aug 29, 2011 at 10:39 am
    Aug 29, 2011 at 11:08 am
  • hi I want to know is TREC documents (a test collection) free or not? Is there any other collection like TREC to do our test? Is there any one to use this collection? thanks
    Sara naznaziSara naznazi
    Aug 26, 2011 at 5:38 am
    Aug 26, 2011 at 12:50 pm
  • hi I have some text files and want to calculate Precision and Recall. dont refer me to Lucen in action book, I already studied it and just want to know is there any one that implement the code ...
    Sara naznaziSara naznazi
    Aug 26, 2011 at 4:09 am
    Aug 26, 2011 at 9:14 am
  • Hi all, I have the following problem with Lucene being not deterministic. I use a MultiSearcher to process a search and when I get hits with same score, those are returned in a random order. I ...
    Yanick GamelinYanick Gamelin
    Aug 25, 2011 at 7:03 pm
    Aug 25, 2011 at 7:25 pm
  • Hello, We are using phrase queries with a slop value to perform Near and Within style searches and the issue we are encountering is as follows: Since the slop value in the PhraseQuery is the ...
    IkoellikerIkoelliker
    Aug 22, 2011 at 10:24 pm
    Aug 25, 2011 at 4:11 pm
  • Dear List, does the distance of the matches for a multi-term query matter? For example if I search for "dog cat", which one of the following matches will get higher rank? "dog, cat, snake, apple" or ...
    Akos TajtiAkos Tajti
    Aug 24, 2011 at 3:40 pm
    Aug 25, 2011 at 6:16 am
  • Hi, I am just beginning to implement text indexation for an application I am building and am not quite sure of a few things. The documents indexed will be in various languages, ranging mostly from ...
    Graham SugdenGraham Sugden
    Aug 18, 2011 at 4:24 pm
    Aug 21, 2011 at 11:00 am
  • Hello, Recently we have introduced distance searching/sorting into the existing Lucene index, using the Spatial contrib for Lucene 2.9.4. There are 100K+ documents into the index where only 20K docs ...
    Drazen.nisDrazen.nis
    Aug 16, 2011 at 8:55 am
    Aug 17, 2011 at 9:36 am
  • I am wanting to add lucene searching capability to my android app. I have trying to find out if anyone has done this yet? IF its possible? and what problems, or draw backs other people have had ...
    David LindeDavid Linde
    Aug 15, 2011 at 1:16 pm
    Aug 16, 2011 at 6:15 am
  • Hi Does Lucene support setting word confidence for every word in the document, to influence the scoring? As suggested by MAVIS project, when indexing Speech Recognition text one need to take into ...
    Saar CarmiSaar Carmi
    Aug 14, 2011 at 7:37 pm
    Aug 14, 2011 at 8:27 pm
  • Hi, We are in the process of putting up a new Lucene/Solr/PyLucene/OpenRelevance website. You can see a preview at http://lucene.staging.apache.org/lucene/. It is more or less a look and feel copy of ...
    Grant IngersollGrant Ingersoll
    Aug 10, 2011 at 2:08 pm
    Aug 10, 2011 at 2:57 pm
  • Hi Everybody. How can I configure Lucene to use different similarity measures (e.g. Cosine similarity, or a user-defined similarity measure) during search? Thanks in advance.
    ZarrinkalamZarrinkalam
    Aug 7, 2011 at 1:58 pm
    Aug 8, 2011 at 8:58 am
  • Hi How can i index a Java Bean into Lucene application ? instead of a file API : IndexWriter writer = new IndexWriter(*FSDirectory.open(INDEX_DIR)*, new StandardAnalyzer(Version.LUCENE_CURRENT), ...
    KARTHIK SHIVAKUMARKARTHIK SHIVAKUMAR
    Aug 6, 2011 at 12:59 pm
    Aug 7, 2011 at 8:05 pm
  • Hi , I am currently using lucene 2.4, is there a way to count how many words from my query hits the post? Lets say my query is: APPLE OR BANANA OR ORANGE The post is: I have a banana, i love to eat ...
    Tan WeijianTan Weijian
    Aug 5, 2011 at 1:15 am
    Aug 5, 2011 at 9:26 am
  • Hello, I keep getting java.lang.OutOfMemoryError while doing search and would like to get some ideas to resolve the issue.. BACKGROUND: IBM AIX server with 8 GIG of memory. Lucene index contains 625 ...
    Trieu, Jason TTrieu, Jason T
    Aug 4, 2011 at 9:42 pm
    Aug 5, 2011 at 9:16 am
  • Hi there! I have a question concerned with ability to use relative path for the config files. I am deploying Solr within a custom war application and it requires a path to its config files. Also I'm ...
    Ksenia KhailenkoKsenia Khailenko
    Aug 25, 2011 at 3:44 pm
    Aug 25, 2011 at 3:44 pm
  • I have an application using Hibernate Search 3.1.1-GA with Lucene 2.4.1 (via lucene-snowball-2.4.1.jar ) on the backend. Our query terms have gotten fairly lengthy (but not complex), consisting of ...
    Bill MitchellBill Mitchell
    Aug 23, 2011 at 8:50 pm
    Aug 23, 2011 at 8:50 pm
  • Dear friends hi I want to use Lucene to calculate Precision and Recall. I did these steps: 1- made some index files. to do this I used indexer code and indexed txt files which exist in this path ...
    Vahideh TabriziVahideh Tabrizi
    Aug 23, 2011 at 6:16 pm
    Aug 23, 2011 at 6:16 pm
  • Dear friends hi I want to use Lucene to calculate Precision and Recall. I did these steps: * 1*- made some index files. to do this I used indexer code and indexed txt files which exist in this path ...
    Vahideh TabriziVahideh Tabrizi
    Aug 23, 2011 at 2:28 pm
    Aug 23, 2011 at 2:28 pm
  • I just reverted a previous commit related to CompoundFile in the 3.x stable branch. If you are using unreleased 3.x branch you need to reindex. See here for details: ...
    Simon WillnauerSimon Willnauer
    Aug 22, 2011 at 4:24 pm
    Aug 22, 2011 at 4:24 pm
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