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32 discussions - 96 posts

  • Hello, all - I'd like to use Lucene's automaton/FST code to achieve fast fuzzy (OSA edit distance up to 2) search for many (10k+) strings (knowledge base: kb) in many large strings (docs). Approach I ...
    Luke NezdaLuke Nezda
    May 24, 2016 at 12:59 am
    May 29, 2016 at 8:27 am
  • Hi, I am new to lucene. Anyone please explain how to sort the numeric values by SortedNumericDocValuesField? I tried like this using Lucene 4.10.4: doc.add(new ...
    Chitra RChitra R
    May 26, 2016 at 1:29 pm
    May 31, 2016 at 2:31 pm
  • Hi Lucene lovers, I have a use-case where I want to *create a lucene based index* of multiple documents and then *want to cache that index*. Can anyone suggest if this is possible ? And which *type ...
    Prateek SinghalPrateek Singhal
    May 21, 2016 at 9:26 am
    May 22, 2016 at 4:32 pm
  • Hi all, I am reading Lucene source code recently and we also use the Elastic Search as our search engine. As far as I know, the elastic search performance is pretty good. The elastic search is based ...
    Ting YaoTing Yao
    May 30, 2016 at 10:01 am
    Jun 1, 2016 at 3:32 am
  • I'm studying the BytesRefHash class, a mapping from bytes to a generated ID for the bytes. In the BytesRefHash class, there are two levels of reference: (1) ids[bytes' hash code] --- count, where ...
    ShanghaihyjShanghaihyj
    May 8, 2016 at 12:45 pm
    May 9, 2016 at 8:47 am
  • I'm attempting to upgrade my project to Lucene 6.0, and have run into an issue with sorting my results. My documents have a timestamp field that was previously a StoredField with NumericType: Long ...
    Jeremy FriesenJeremy Friesen
    May 26, 2016 at 9:54 pm
    May 27, 2016 at 7:22 am
  • Hi, I am new to lucene. I was following the example, IndexFiles, from the lucene demo package. However, one thing I find surpring is that the write.lock file is left over, even when the ...
    Jianbao (Jim) TaoJianbao (Jim) Tao
    May 22, 2016 at 5:20 pm
    Jun 1, 2016 at 1:04 pm
  • I've recently become aware that Lucene allows duplicate field names, which essentially allows multiple values to be associated with a field. A follow-up question is whether the order of the values is ...
    Daniel BighamDaniel Bigham
    May 25, 2016 at 7:58 pm
    May 26, 2016 at 12:47 pm
  • It makes a call to SlowCompositeReaderWrapper in line 103, which checks if field hasPointValues in line 68. If yes, it throws an exception "cannot wrap points". Does this essentially mean ...
    ShengSheng
    May 25, 2016 at 5:11 pm
    May 26, 2016 at 12:26 am
  • Hello, I have some difficulties to find out in which release some API changes were made and information about how to migrate. For example I was not able to find: 1) when the method ...
    Jean-Claude DauphinJean-Claude Dauphin
    May 23, 2016 at 4:00 pm
    May 25, 2016 at 8:25 pm
  • Hello, I am storing close to 100 fields in a single document which is being indexed. There are million such documents. Lucene version is 5.5.0 During search, I wish to get only 1 field out of these ...
    Ankit MurarkaAnkit Murarka
    May 16, 2016 at 12:39 pm
    May 17, 2016 at 5:27 am
  • I am experimenting with supporting synonyms on the query side by doing query expansion. For example, the query "open webpage" can be expanded if the following things are synonyms: "open" | "go to" ...
    Daniel BighamDaniel Bigham
    May 13, 2016 at 9:33 pm
    May 16, 2016 at 12:50 pm
  • I'm very interested in SpanNearQuery, because it allows for quite powerful phrasal searching. However, unlike BooleanQuery, there doesn't seem to be any way to have it search multiple fields. I ...
    Daniel BighamDaniel Bigham
    May 12, 2016 at 7:35 pm
    May 13, 2016 at 2:19 am
  • I am studying Lucene internals. TermsHashPerField is the core to invert a field, which is so complex a class for me to understand. Is there any detailed articles / materials available to explain ...
    ShanghaihyjShanghaihyj
    May 3, 2016 at 3:58 pm
    May 5, 2016 at 5:10 pm
  • hi, i want to migrate our code from 4.6 to 5.5. We used a FieldCacheRangeFilter but this no longer exists in Version 5. And DocValuesRangeFilter does not exist anymore in 5.5.0 so what could i use? ...
    Sascha JanzSascha Janz
    May 4, 2016 at 9:00 am
    May 4, 2016 at 9:56 am
  • I've noticed that the Document.setBoost method appears to have been removed at some point. What should be used now to boost a document? ...
    Daniel BighamDaniel Bigham
    May 27, 2016 at 4:36 pm
    May 27, 2016 at 4:41 pm
  • Hello, I am using indexes that can be as large as 25 Gb. Indexes are created for a specific time window (for instance it can be weekly based). Once the week is passed they are not written to ...
    Vincent SevelVincent Sevel
    May 27, 2016 at 8:11 am
    May 27, 2016 at 9:00 am
  • Hi all, I’ve got an alternative representation in the index for numeric fields, and I need to construct an alternative approach for range queries. I’m sub-classing BooleanQuery (as ultimately that’s ...
    Ken KruglerKen Krugler
    May 19, 2016 at 8:28 pm
    May 25, 2016 at 2:11 pm
  • Hi All, I was just checking the query grammer found in the java docs of the query parser : Query ::= ( Clause )* Clause ::= ["+", "-"] [<TERM ":"] ( <TERM | "(" Query ")" ) This is what is available ...
    Taher GalalTaher Galal
    May 15, 2016 at 10:57 am
    May 16, 2016 at 9:36 pm
  • Hi, In the past (lucene 4) I have tried to implement a simple Similarity to only count the number of occurrences (term frequencies) into the documents, ignoring norms, doc frequencies, boosts... It ...
    Luís Filipe NassifLuís Filipe Nassif
    May 12, 2016 at 2:41 am
    May 12, 2016 at 12:59 pm
  • Sometimes during an ongoing search we receive an IndexReaderClosedException & found that it happens when a merge is completed. We are on an older version of lucene (4.6.1). IndexFileDeleter ...
    Ravikumar GovindarajanRavikumar Govindarajan
    May 10, 2016 at 6:02 am
    May 10, 2016 at 6:22 am
  • 5 May 2016, Apache Lucene™ 5.5.1 available The Lucene PMC is pleased to announce the release of Apache Lucene 5.5.1 Apache Lucene is a high-performance, full-featured text search engine library ...
    Anshum GuptaAnshum Gupta
    May 6, 2016 at 6:46 am
    May 6, 2016 at 3:06 pm
  • I'd like to use CustomAnalyzer to create an analyzer that is much like the FrenchAnalyzer. In doing that, I'm using StopFilterFactory. But I'm unsure how to point it to use "french_stop.txt". ie ...
    Daniel BighamDaniel Bigham
    May 5, 2016 at 6:02 pm
    May 5, 2016 at 7:21 pm
  • I have been fighting for some time with trying to fix an issues in the application I am developing and since I am starting to run out of ideas I figured I'd try reaching out for help. I store a ...
    Conny GyllendahlConny Gyllendahl
    May 30, 2016 at 12:32 pm
    May 30, 2016 at 12:32 pm
  • 28 May 2016, Apache Lucene™ 6.0.1 available The Lucene PMC is pleased to announce the release of Apache Lucene 6.0.1 Apache Lucene is a high-performance, full-featured text search engine library ...
    Steve RoweSteve Rowe
    May 28, 2016 at 12:46 pm
    May 28, 2016 at 12:46 pm
  • Adding lucene user mailing list to it.
    Pranaya BeheraPranaya Behera
    May 20, 2016 at 7:17 am
    May 20, 2016 at 7:17 am
  • -------------------------------------------------------------------------------- 16th International Workshop on Worst-Case Execution Time Analysis WCET 2016 Toulouse, France, 5th July 2016 in ...
    MascaMasca
    May 19, 2016 at 6:40 pm
    May 19, 2016 at 6:40 pm
  • <span class="m_body_email_addr" title="1f563529755c3aa60b3ce8e56bbd0d24" java-user@lucene.apache.org</span Hi, I'm trying to use code from lucene-core for following use-case in my project. Given a ...
    HimanshuHimanshu
    May 18, 2016 at 3:38 am
    May 18, 2016 at 3:38 am
  • Hello , I have a set of documents , doc1:{world,hello} doc2:{world,test,try} doc3:{try, play,work} doc4:{hello,football,play} I want to query like doc_id:(doc1 doc2 doc4) and want to fetch top ...
    Alok BhandariAlok Bhandari
    May 13, 2016 at 8:37 am
    May 13, 2016 at 8:37 am
  • When constructing boolean queries, the "parts" can themselves be phrases, and can be parsed as follows: QueryBuilder(analyzer).createPhraseQuery(fieldName, phrase) The above call is handy in that, ...
    Daniel BighamDaniel Bigham
    May 12, 2016 at 8:07 pm
    May 12, 2016 at 8:07 pm
  • -------------------------------------------------------------------------------- 16th International Workshop on Worst-Case Execution Time Analysis WCET 2016 Toulouse, France, 5th July 2016 in ...
    MascaMasca
    May 10, 2016 at 1:02 pm
    May 10, 2016 at 1:02 pm
  • Hi, I am using DirectoryTaxonomyWriter to create facet Indexes. There is 2 process. Process A creates facet indexes in Folder A. Process B creates facet indexes in Folder B. I have a 3rd Process ...
    Ankit MurarkaAnkit Murarka
    May 5, 2016 at 2:38 pm
    May 5, 2016 at 2:38 pm
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40 users for May 2016

Daniel Bigham: 11 posts Michael McCandless: 11 posts Luke Nezda: 7 posts Adrien Grand: 5 posts Chitra R: 5 posts Shanghaihyj: 4 posts Ankit Murarka: 3 posts Ahmet Arslan: 3 posts Dawid Weiss: 3 posts Uwe Schindler: 3 posts Alan Woodward: 2 posts Jean-Claude Dauphin: 2 posts Jeremy Friesen: 2 posts Jeremy Glesner: 2 posts Jianbao (Jim) Tao: 2 posts Masca: 2 posts Prateek Singhal: 2 posts Ravikumar Govindarajan: 2 posts Sascha Janz: 2 posts Sheng: 2 posts
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