similar to: Want to know more about xapian query expansion

hi i had created an indexer n searcher in php in 0.9.4 and it was workin fine. now i installed 0.9.5 but i m getting following error *Fatal error*: No matching function for overloaded 'Document_add_posting' in */home/jana/public_html/final_file_search/file_indexer.php* on line *48 *this is the fragment of my code where i m gettin the error.

Hello Dan and Olly, this is the code for the base class for query expansion that I have written. The code will not compile as I have written only the base class until now. Have yet to use it. Please do tell me what you think of the base class and what changes you suggest I should make before I move forward with the project. https://github.com/xapian/xapian/pull/23 -Regards -Aarsh --------------

Hello guys, I have some good news. After a lot of hardwork, here is the trial version of our new query expansion mechanism. The code compiles well. But, I have yet to test it extensively. Dan's advice of making ExpandStats a member of ExpandWeight really proved to be useful. Thanks Dan ! :) While I work on testing the mechanism, I would really appreciate if I got feedback and reviews about the

HI, We have an index database of products, about 20 million. We had constructed the title and description of products into posting list, and also stored some values of properties into slot, such as the price, comment count, production date, click number of the products. Now we want select some products which satisties specific condition, such as contain the term of "shirt" and

On Tue, Sep 12, 2017 at 04:47:52PM -0400, Alex Aminoff wrote: >         my $filterepoch = time() - ($datefilter * 60 * 60 * 24); >         my $filterquery = > Xapian::Query->new(OP_VALUE_GE,I_DATE,$filterepoch); I think your issue here is that $filterepoch is a number rather than a string (a Perl scalar can have different representations internally). In t/valuerange.t this testcase

Hi, I am an undergraduate student of Computer Science and Engineering. I want to volunteer Xapian in Google Summer of Code 2012. But I have no experience of working on Open Source projects. I am really interested in "Test Extraction Library" project. I meet some of its requirements like I'm pretty much familiar with C++ (and now learning even advanced C++ programming) and have keen

Hello Sir/Ma?am I beg to state that I was looking for a project In GSOC 2016 which matches my skill and passion, and I came across Matcher Optimisation, Xapian. This project has really captured my interest and I would love to contribute to this project. I am a computer engineering undergraduate so I am good at programming languages (especially C and C++), algorithms, logical and analytical

QueryParser is great, but I would like to make a query myself, so I can filter results by a specified value (in this case restricting by epoch time after a certain value) My code looks like this, and compiles, and appears like it should work according to the perl source:     my $query = $qp->parse_query($querystr);     if ($datefilter) {         my $filterepoch = time() - ($datefilter

Hi all, I've been a Lucene user for the past year, but lately, with most of my project moving to Python, I really love Xapian's clean python binding. I can't seem to see how to boost a query term using Xapian's query syntax. In Lucene, there is "hello^4 world^.2" to boost "hello" and suppress "world". However, digging through Xapian's

Hey guys,I am a 3rd year Computer Science undergrad student.I a extremely interested in contributing code to the XAPIAN project. The work you people do sounds extremely fascinating and interesting.Can someone just give me a brief overview of how to proceed ?. I Can code in C,C++ and Python and have experience in Natural Lanuage Processing.Am also quite comfortable with NLTK and using Wordnet.Am

Hello everyone, I'm very interested in packaging the Xapian Ruby bindings as a gem for easier installation and integration into Ruby projects. I came to this idea, because many Ruby developers face the problem of installing xapian under hosting service where they have no root rights. And Xapian is THE essential part of the Rails plugin acts_as_xapian, wich brings all the Xapian features to

I have web server with nginx, php-fpm(php 5.3.8) on fedora 16. I have installed xapian from yum base repository (yum install php-xapian), everythigs went ok. But after adding extension=xapian.so to my php.ini file and restarting php-fpm, xapian. so doesn't load. After typing php -m in command line i can see error message :"PHP Warning: PHP Startup: Unable to load dynamic library

Hi I know it might not possible, but just want to try my luck. say, for a web search engine backed by xapian.... Is it possible to group the result by domain just like google's [ More results from www.abc.com ], when there are more than 1 results from the same domain? Or, anyone have some work around to do it? Cheers Andrey Kong

Hi, All Any one can help me solve the issue:?http://stackoverflow.com/questions/34825084/does-xapian-support-query-string-like-x-1-2-or-x-8-10-i-cannot-figure-it Thanks Rafael

Hi, All Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)"? I?want?to?get?the?results?with?age?range?from?1?to?25, 35?to?50. I?tested,?"(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: 35..50)" doesn't work. Thanks Best wish-Rafael Gu

I am using Xapian as the search engine in Hyperkitty for GNU Mailman 3. Is there a page of instructions for end users on the search syntax, such as wildcards and boolean searches? My end users would appreciate such a thing. I am unable to find anything like this. Andrew Bernard

Hello, With PHP, I try to get spelling corrections but after 2 days of trying I can make it work !!! Here is my < simple > code : <?php require_once( '../global.info.php' ); require_once( 'xapian.class.php' ); require_once( 'xapianencode.func.php' ); // Open the database for searching. try { $database = new XapianDatabase(

On 16 January 2016 at 19:15, ??? <shoutrain_goo at aliyun.com> wrote: > Hi, All > Does Xapian support query string like "(age: 1..25) OR (age: 35..50)"? or > "(age: 1..25) - (age: 35..50)"? > I want to get the results with age range from 1 to 25, 35 to 50. > > I tested, "(age: 1..25) OR (age: 35..50)"? or "(age: 1..25) - (age: >

On Thu, Dec 29, 2016 at 05:44:50PM +0100, Giulio Teslano wrote: > a. What other types of extended wild card(s) options are there ? > > or is this still currently limited to these two characters '*?' ? As I said, the branch "adds support for arbitrary glob-style wildcard patterns (where * matches 0 or more characters and ? a single

Hello, We have Xapian-Omega installed (Linux) and working in default mode and have browsed several interesting pages on the main site, at trac.xapian.org (the wiki) and in the mailing list. Having tested various search options (up to now only for Omega) we would like to ask a couple of questions. 1. Is it possible to search for Patterns of Text with Omega and/or Xapian Queries ?