similar to: error building xapian

I have download source ?1.10? from the internet and build it into lib Then I create a project as the helpdoc said I using vc2005(vc8) The source in my test project is as follow??copy from the helpdoc? #include <xapian.h> #include <iostream> using namespace std; int main(int argc, char **argv) { // Simplest possible options parsing: we just require three or more

Dear Members of Xapian Project, Sorry for troubling you this time. This is Miao LIU, a postgraduate student working on information retrieval system related areas. I have been using Xapian (https://xapian.org) for quite a few months as the database and the searching engine in my IR system. I am currently facing a tough problem that I'd like to put all my posting lists in memory of my

Hi, I am brand new to Xapian and am trying to get it to build on my Windows XP SP2 computer. I have downloaded cygwin and did a full install. I have downloaded the most recent xapian-core code. Here is what I have done so far: a. I unpacked the core and put in at c:\xapian-core-0.9.0 b. I then opened a cmd window, typed 'sh' to open up the cygwin shell and then typed in the

Dear Members of Xapian Project, Sorry for troubling you this time. I am currently facing a challenge that I can not search and update Xapian "InMemoryDatabase" concurrently via 2 different threads although I have added the critical area mutex which allows only reading/writing at one single time. More specifically, along with the core dump, the error message was "double free or

*Or do you mean that it's one number per document whereas the other stats are per database, so it's harder to store it?* yes, I mean this. It's a huge data. If a new doclength list(contains all the doclength in a list, like chert) is added by myself, I am concern about: 1. This doclength list may be the bottlenect in this backend, http://trac.xapian.org/ticket/326 2. Change too much

Hi, all: I have wrote a demo patch for Backend for Lucene format indexes, Lucene version is 3.6.2. http://lucene.apache.org/core/3_6_2/fileformats.html Now, this demo patch just support the basic features in Lucene. Compound File(.cfs/.cfe)?term vector(.tvx/.tvd/.tvf) delete document(.del) are not supported, skip list in .fdx is not supported too example/quest.cc is used to test this demo.

Dear All, I've tried to build xapian-core 1.4.3 on MSYS2. It fails with attached error (undefined reference to `exp10'). I think it might be missing an explicit link to 'm'. I'm not able to fix this myself as I do not know autotools sufficiently well, but I hope you might be able to help. Cheers, Mario Emmenlauer -- BioDataAnalysis GmbH, Mario Emmenlauer Tel.

olly wrote: > Log message (7 lines): > backends/database.cc: Database::Internal can't call the > PostingIterator(PostingIterator::Internal*) ctor (at least under > g++ 3.3.5) because it isn't a friend (only class Database is). For the record, Mark just reported this to me under windows so it was a problem there too, but it does work under GCC 4.1. No idea which compiler is

Hello all. I need to redefine a docid type (and all dependent types) like this: typedef unsigned long long docid; I think it would be enough to edit "include/xapian/types.h", but it isn't so. 1) I've added : string om_tostring(unsigned long long val) { CONVERT_TO_STRING("%llu") } in common/utils.{h,cc} 2) In include/enquire.h (line 438) I've found the

On Tue, Aug 20, 2013 at 07:28:42PM +0800, jiangwen jiang wrote: > I think norm(t, d) in Lucene can used to caculate the number which is > similar to doc length(see norm(t,d) in > http://lucene.apache.org/core/3_5_0/api/all/org/apache/lucene/search/Similarity.html#formula_norm). It sounds similar (especially if document and field boosts aren't in use), though some places may rely on

I am suffering for slow searching performance on Xapian. I am using Xapian for indexing about 150,000,000 documents. It was implemented in C++; The performance of searching was not that fast. e.g. Searching a query, which includes about 20 terms, needs 2 secs avg. For searching, I followed such steps: 1. construct a QueryParser for certain string 2. parse the query to get a Xapian::Query

On Mon, Aug 26, 2013 at 09:41:07AM +0800, jiangwen jiang wrote: > > For now, using weighting schemes which don't use document length is > > probably the simplest answer. > > There's tf-idf weighting scheme on svn master, is it suitable for lucene > backend? Yes - TfIdfWeight doesn't ever use the document length (at least with the normalisations currently

On Mon, Sep 02, 2013 at 09:21:48AM +0800, jiangwen jiang wrote: > TfIdfWeight and BM25(b=0) also need wdf_upper_bound, it is not exists in > Lucene backends. If you don't provide an implementation of wdf_upper_bound(), the default is to use the collection frequency of the term, so provided that information is available in the lucene files, the lack of wdf_upper_bound information

There may be some solutions?for example class XAPIAN { *static* int InitDatabase(); //for reading only, do not need lock, but if writing use lock int Search(); //safe in one object, do not need lock }; XIPIAN xp[ THREAD_NUM ]; one thread use one object, they use one database. these can be in memory with one database. 2014-06-24 20:48 GMT+08:00 Olly Betts <olly at survex.com>:

Sometimes after playing around in R for a while, I find myself thinking, "What have I done?". Which boils down to "What's the difference between the objects I currently have in my R session and those that were loaded from my .RData when I started R". So I bashed this out in five minutes, just to test the principles. differ <- function(file){ load(file) inFile

hi, Why xapian don't support memory index/search ? I know there is a method can create memory datebase, like this: Xapian::WritableDatabase db(Xapian::InMemory::open()); *But, if i use these in multithread program, i need create many datebases!!* Xapian::WritableDatabase db1(Xapian::InMemory::open()); //used in thread1 Xapian::WritableDatabase db2(Xapian::InMemory::open()); //used in

This is an update on the current status of the relicensing, but also an opportunity to give feedback. Sorry it's rather long, but I think it's necessary to summarise the situation - there are probably list members who weren't even born at the start of the history of this! Xapian is currently licensed as GPLv2+, but isn't something we actually chose for Xapian, but rather due to a

I posted this message first. But it was missing so I post again. I think there is a some bug in build configration files. Can you check up the following errors and fix it? The error has no concern with UTF-8 patch. Environment : CentOS 4.3 x86_64 Sungsoo Kim ---------------------------------- [root at saturn xapian-core-0.9.4_svn6707]# make ... ... mkdir .libs/libxapian.lax/libqueryparser.a

Please find my inline reply. On 26 January 2015 at 06:56, Olly Betts <olly at survex.com> wrote: > On Sun, Jan 25, 2015 at 06:46:26PM +0500, Saad Ahmed wrote: > > I have been able to successfully build the code. But when I run the > > existing testcases (to verify everthing is working fine), It says 3 out > of > > the six testcases fails. Here is the report of the

Hi olly, I rewrote the test for PL2 after adding code to deal with negative weights. It passes on all backends other than inmemory . I see a different value of weight for inmemory backend. The code to calculate the lower bound is implemented in init().Please can I get some help with this ? -Regards -Aarsh -------------- next part -------------- An HTML attachment was scrubbed... URL: