similar to: GSOC 2012 : QueryParser Reimplementation

hello everyone, I am Maheshwar, a prefinal year Computer Science undergraduate student at BITS-Pilani, India. When i was going through the GSOC ideas , i felt interested in Quesry parser project. Till now i have implemented a couple of LL(1) parsers as a part of my assignment in Compiler construction course, so i would love to join and contribute to this project. So can any one tell me how to go

Hello, My name is Sean Mikalson. I am a second year Software Engineering student with a combined degree in Philosophy. I am interested in participating with Xapian in GSOC this year and a couple of projects have initially caught my eye: - Dynamic Snippets - QueryParser Reimplementation I have good working knowledge in C/C++, Java and SQL (specifically Transact-SQL). In order to determine

*Hi all,* * * *The following is my general idea for the project. For a complete query parser I still need to consider more details. Please give me feedback because the description of this project is lack of detailed information, and I can submit my proposal without giant deviation.* * * design principle of query parsing: 1) better understanding user input. All search engine do is understanding

Hi, I have been working on developing Link Grammar interface, so as to use POS tagging while indexing the documents. The interface header as well as implementation file have been completed and you can view them at < https://github.com/sehaj-sk/xapian/commit/052d634e1986bcf5607e43f52ac3e07646920196> and <

Respected sir/ma'am, I, Saurabh Kumar, am a second year UG student in ?Department of Comp. Science at IIT Delhi, India and want to apply for GSOC. I am interested and would love to work on the following projects: ?-? QueryParser Reimplementation ?- ?Improve Spelling Correction I have worked on many programming projects and it makes me an eligible candidate for SOC. I have a experience of

Respected sir/ma'am, I, Saurabh Kumar, am a second year UG student in ?Department of Comp. Science at IIT Delhi, India and want to apply for GSOC. I am interested and would love to work on the following projects: ?-? QueryParser Reimplementation ?- ?Improve Spelling Correction I have worked on many programming projects and it makes me an eligible candidate for SOC. I have a experience of

Hello. There are several problems I couldn't find a solution. 1. QueryParser does not perform stemming I am working with PHP5 and use the xapian wrapper written by Daniel M?nard I build a query using parseQuery. Output of the parsed query shows that terms are not stemmed, although a stemmer is set ( see code snippet) # create a XapianDatabase object to search in $db = new

Hi, I'm using xapian to build my search engine, but met with a problem. The code snippet is like: ----------------------Code begin------------------------------------------------------------- Xapian::QueryParser qp; qp.add_prefix("Singer", "S"); Xapian::Query query = qp.parse_query("Singer:s.h.e",

hey. I'm using the Search::Xapian interface version 0.9.2 (and xapian-core 0.9.2), and feeding the queryparser such things as "one AND NOT two" or "test NOT NOT really" makes it go "Aborted"... I've tried adding the exception handling from the other stubs to QueryParser.xs as well, but I still can't catch this error from perl. Does this mean

I don't know whether this is a BUG or for special purpose... According to the definition of "xapian/queryparser.h", FLAG_AUTO_MULTIWORD_SYNONYMS contains bit of FLAG_AUTO_SYNONYMS . Therefore, long as I set the parse flag with FLAG_AUTO_SYNONYMS, the query parser will automatically activate the function of FLAG_AUTO_MULTIWORD_SYNONYMS. See the below source code part from

Hi to all, First, I would like to say a big thank you for the work which was done on my 'wish bug' to allow mapping one field to multiple prefixes (http://www.xapian.org/cgi-bin/bugzilla/show_bug.cgi?id=93). That's great! I have upgraded to 1.0.4 and I am revisiting my code, replacing the php query parser I wrote with Xapian's one. Everything works well, but I have some

I'm new to Xapian and we just recently upgraded to version 1.0.0.0. However, something seems to have changed during the upgrade and I need help figuring out how my code should be written. In version 0.9.9.1 of Search::Xapian, the following code results in this output "Xapian::Query(pet:(pos=1))". my $qp = new Search::Xapian::QueryParser; $qp->set_stemmer(new

Hi all, I am rather new to xapian, I just recently tried to include it in my application, so bear with me if this has already been discussed. I was playing with QueryParser and noticed that it expects input to be in ISO8859_1 encoding - characters above 0x80 are transliterated, and are not considered letters. For example, using single word (in utf-8 encoding) "bo?e" as input for

Hi, I would like to "pull apart" a search string to populate distinct search fields in a UI; something like how Google toggles between simple and advanced search modes. I realise going from simple to advanced may well be lossy but that's fine for my purposes. I thought the obvious place to start was xapian's QueryParser. Unfortunately, Query instances appear to be a little

Hello, I'm wondering about how the QueryParser parses a query containing an "alias" when the default operator is OP_AND (by "alias", I mean a search field mapped to multiple term prefixes). With the following php code : <?php $parser=new XapianQueryParser(); $parser->set_default_op(XapianQuery::OP_AND); $parser->add_prefix('alias', 'AUT1:');

Hi all, I have jotted down a plan for how to handle or add Bi-gram in Query Object though QueryParser. PFA as a sequence diagram which depicts what i got to know about how parser works and query is build from tokens provided by the lexer.I have highlighted some area in blue where i think there is possibility of having bi-grams.While Integrating bi-gram in the Parser ,Query our aim is to generate

I've got a small test database setup with one record. $ delve -r 1 -V /tmp/1/ Values for record #1: 0:DD4F2162FFFF0E43741A4A1C2B8EC0E7 1:./Text_page_scan_2.jpg 2:jpg 3:.jpg Term List for record #1: E:.jpg P:./Text_page_scan_2.jpg Q:DD4F2162FFFF0E43741A4A1C2B8EC0E7 T:jpg The terms were added with lines like this: doc.add_term(string("P:") + path); Problem is, I can't seem to

Hi, I''ve implemented synonym searching in my rails application but have an idea I''d like to implement but can''t figure out how to do. The idea is that I''d like to give the end user the choice on whether to search for the synonym of a word or not. Preferably by extending the query language to parse a construct similar to ''%word1'' and

Hi, I'm using Xapian in Python2. I'm trying to replicate an analysis that somebody else performed in Lucene. To do that I need to do a search for a multi-word query in which particular fields are boosted - preferably at query time. That is, given a query like "the cat is lying on the mat" (with an OR operator, ignoring word positions but with stemming and stop words removed),

Hi, Two questions which I'm unsure about: Stemming: I've turned on stemming, etc, but how can I confirm that it's being used in searches? What should I look/search for? Stopwords: I'm trying out xapian on a regional dataset (searching data from a *.co.us TLD, eg) . I've noticed that searching for [bob co.us] results in *very* slow search times (tens of seconds), since it