Re: Query Parser, Unary Operators and Multi-Field Query

by ( or , or at the beginning of the string, e.g. using a regex like /(?:^|[\s(])[+-]/, and if you find a match, use default OR operator, and if not, use default AND operator? Ok, thanks for the workaround. -- Renaud Delbru

Query Parser, Unary Operators and Multi-Field Query

) Is it the normal behaviour ? A Bug ? Am I doing something wrong ? Thanks in advance for your help, -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h

Re: Query Parser, Unary Operators and Multi-Field Query

://lucidworks.lucidimagination.com/display/LWEUG/Boolean+Operators Thanks -- Renaud Delbru On 20/05/11 13:21, Steven A Rowe wrote: Hi Renaud, That's normal behavior, since you have AND as default operator. This is equivalent to placing a + in front of every element of your query. In fact, if you removed the other two

Flex API - Debugging Segment Merge

this information, so I will be able to check these segments and their encoded blocks in order to find and understand the problem ? Thanks in advance, -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org

Re: Flex API - Debugging Segment Merge

, the index of the faulty block), I will be able to display the content of the blocks, and see if there is some problems in the PFor encoding. Cheers, -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org

Re: Question on number of fields in a document

will be more suitable. [1] http://siren.sindice.com/ -- Renaud Delbru On 12/03/10 13:43, Erick Erickson wrote: There's no requirement that all documents have the same fields, Lucene is fine with different docs having different fields. There's no limit on the number of different fields allowed

Flex Segment Merging

interface ? How is it working currently ? Is there some restrictions on how segments can be merged ? Is there a way to extend easily the mechanism on how segments are merged ? Cheers, -- Renaud Delbru - To unsubscribe, e-mail: java

Re: Flex Docs/AndPositionsEnum

is to create my own MultiReader that is optimised for my codec. Is that right ? A MultiReader that just iterates over the subreaders, checks if they are using my codec (and therefore associated fields), and uses them to iterate over my own postings ? -- Renaud Delbru

Re: Flex Docs/AndPositionsEnum

the DocsEnum interface, and therefore do not know if it manipulates segment-level enum or a Multi*Enums. What search (or query operators) in Lucene is using segment-level enums ? Cheers -- Renaud Delbru - To unsubscribe, e-mail: java-user

Re: Flex Docs/AndPositionsEnum

that the way I am testing the postings (using termPositionsEnum on the top-level reader) was not really the proper way to test it, and that the correct way will be instead to use directly a TermQuery. Thanks for the clarification. -- Renaud Delbru

Flex Docs/AndPositionsEnum

to extends StandardCodec without having to deal with these classes ? Cheers -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org

Re: Flex Docs/AndPositionsEnum

except the problem related to MultiReaders. Thanks -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org

Re: Flex Docs/AndPositionsEnum

index data structure are correctly retrieved. In that case, I got the previous errors (a MultiDocsAndPositionsEnum is returned). However, when I am indexing only one or two documents, the original DocsAndPositionsEnum is returned. Hope that helps, cheers -- Renaud Delbru

Re: Flex Docs/AndPositionsEnum

reasons), you will have to use MultiField's static methods to get the enums. In my previous example (registering my codec in IndexWriter, and then use IndexReader), do I consume the flex API directly on top of the multi-readers directly ? If yes, how to avoid that ? Cheers -- Renaud Delbru

Re: IndexingChain and TermHash

Hi Michael, I have started to look at the PFOR codec. However, when I include the codec files inside the flex_1458 branch, it misses the org.apache.lucene.util.pfor.PFor class which is the core of the codec. Where can I find this class ? Thanks, Regards -- Renaud Delbru On 16/11/09 14:01

Re: Question about many fields within a single index

(correct me if I am wrong) that this new version includes some optimisations for dictionary lookups, which should minimize the overhead. -- Renaud Delbru On 30/12/09 16:18, Jason Tesser wrote: I have a situation where I might have 1000 different types of Lucene Documents each with 10 or so fields

Re: IndexingChain and TermHash

period. I will continue to follow the advancement of 1458, test it, and continue to report you my feedbacks and experiences with it. Thanks, Best Regards [1] http://siren.sindice.com -- Renaud Delbru On 16/11/09 13:01, Michael McCandless wrote: Yes, the branch is here: https://svn.apache.org

Re: IndexingChain and TermHash

, in order to be able to plug my own chain, but I have the impression that you've done something similar already (with the codec abstraction). Would be a pity to lose my time doing something less convenient that your appraoch. Thanks. -- Renaud Delbru On 14/11/09 13:22, Michael McCandless

Re: IndexingChain and TermHash

the experience! I will. -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org

Re: Querying across object relationships

your questions in our mailing list. [1] http://siren.sindice.com [2] https://dev.deri.ie/confluence/display/SIREn/Indexing+and+Searching+Tabular+Data Best Regards, -- Renaud Delbru Donal Murtagh wrote: Hi, I'm trying to use Lucene to query a domain that has the following structure

[ANN] SIREn 0.1 Release

to make this project happen ... but also to the Data Intensive Infrastructure Group and DERI. [1] http://di2.deri.ie/ -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e

Posting List Encoding: Group Varint Encoding

] http://videolectures.net/wsdm09_dean_cblirs/ -- Renaud Delbru - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org

Re: Modification of positional information encoding

and define how to serialise positions and payloads I think other parts of the FreqProxTermsWriter can stay generic. What do you think ? Regards. -- Renaud Delbru - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional

Modification of positional information encoding

these modifications ? Make a branch of lucene, and add my new classes to the lucene package org.apache.lucene.index ? Or do a more elegant solution is possible ? Thanks in advance, Regards. -- Renaud Delbru - To unsubscribe, e-mail: [EMAIL

Re: Sorting posting lists before intersection

such as ConjunctiveScorer). This will require a call to IndexReader.docFreq(term) for each of the term queries. Is docFreq call mean another IO access ? Thanks for the clarification, Regards. -- Renaud Delbru Andrzej Bialecki wrote: Renaud Delbru wrote: Hi all, I am wondering if Lucene implements the query

Re: Modification of positional information encoding

? If you take that approach, please report back so we can learn how to improve Lucene for these very advanced customizations! Ok, thanks for the reference. I will try this solution, and will report you any problems I will encounter. Regards. -- Renaud Delbru

Re: Sorting posting lists before intersection

Andrzej Bialecki wrote: Renaud Delbru wrote: Hi Andrzej, sorry for the late reply. I have looked at the code. As far as I understand, you sort the posting lists based on the first doc skip. The first posting list will be the one who have the first biggest document skip. Do the sparseness

Re: Sorting posting lists before intersection

be a not so bad predictor in general. Regards. -- Renaud Delbru - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: triplet store

Yes, I know to research project that have implemented a triple store on top of Lucene: - Semplore [1] - Sindice [2] [1] http://apex.sjtu.edu.cn/apex_wiki/Demos/Semplore [2] http://www.sindice.com -- Renaud Delbru Cam Bazz wrote: Has anyone tried to implement a triplet store with lucene? Best

Sorting posting lists before intersection

Hi all, I am wondering if Lucene implements the query optimisation that consists of ordering the posting lists based on the term frequency before intersection ? If yes, could somebody point me to the java class / method that implements such strategy ? Thanks in advance, Regards. -- Renaud

Update of stored and non-indexed binary fields

(.fdt) file. Then, could it be possible to overwrite the old float value by a new float value ? Thanks, -- Renaud delbru - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]

Re: Incorrect Token Offset when using multiple fieldable instance

(because tokenStream doesn't return them). It's as if we need the ability to query a tokenStream for its final offset or something. One workaround might be to insert an end marker token, with the true end offset, which is a term you would never search on? Mike Renaud Delbru wrote: Hi, I

Incorrect Token Offset when using multiple fieldable instance

instances will have their offset shifted back. Is it a bug ? Or is it a desired behavior (in this case, why ?) ? Regards. -- Renaud Delbru, E.C.S., Ph.D. Student, Semantic Information Systems and Language Engineering Group (SmILE), Digital Enterprise Research Institute, National University