similar to: GSOC 2017 Project: Learning to Rank Click Data Mining

> You could do that by identifying the search session instead of the user, > which makes it closer to what we need than to something that might trip you > into privacy concerns. Okay, that would be much better. :) > Third records some information about what sort of query it is — add, > morelike or a plain query. Last provides the estimated match size and then > the HTTP

Hi James, > Isn't this from the query template, ie from the main web page of search > results? (It might make sense from opensearch as well, though.) Yes, you are right; it is the query template. The reason I said opensearch template is that I haven't quite read all sections of the Omega docs and I'm still in the process. Thanks for pointing that out. I'm aiming to cover

Hi Olly. Thanks for your reply to the previous email. To have an appropriate subject I've started this new thread for further discussions. > There's a $log{} command available in Omega templates. We can't log from > the result page template, as the clicks happen after that is used, but we > could make result links redirect via a second Omega template which does > the

> > I'd suggest to start with you just look at moving the libmagic check after > the filesize checks, so you don't need to get into whether libmagic or > the database check is cheaper on average. hi, Olly, I have moved the libmagic check after the filesize check directly, https://github.com/caiyulun/xapian/commit/3a97d9ee5397fa900a473aa9b3d8eeb720177a4e can you provide

As Olly has already pointed out the 2012 branch is not merged. I think there are some compilation errors in the branch. The code in branch is better refactored. The Ranker and FeatureManager classes are well defined and implemented. Parth. On Wed, Sep 25, 2013 at 9:02 AM, Olly Betts <olly at survex.com> wrote: > On Tue, Sep 24, 2013 at 08:34:10PM +0800, jiangwen jiang wrote: >

HI, Parth: Thanks for your reply. There's xapian-letor folder in current master trunk, is this code merged in 2011? the letor code of 2012 is not merged to the trunk? Regards 2013/9/23 Parth Gupta <pargup8 at gmail.com> > Dear Jiangwen Jiang, > > The current state of the project can be reached from the repo: > http://trac.xapian.org/wiki/GSoC2012/LTR > > I would

Hello All, This time we are working on a weighting scheme "Learning to Rank" which involves machine learning and its a supervised ranking scheme unlike unsupervised schemes like BM25 under GSoC project. This mail intends to discuss the framework of the Learning to Rank in Xapian as a whole. I have thought of the following framework, pour in your insights or issues for the same. This is

Hello Everyone, I am looking forward to contribute to Xapian and also apply as a Google Summer of Code student. I would like to start by introducing myself. I am a final year M.Sc.(H) Chemistry and B.E. (H) Electronics and Instrumentation student at BITS - Pilani, Goa. I am interested in Machine Learning and presently pursuing my thesis on the same. I have been selected for Google Summer of Code

Hi, I spent this week mostly understanding how the existing templates work and setting up Omega CGI on my system to have a better grasp over how things actually look like when using different templates. This helped me look at things associated with logging the click data from a better perspective. As already documented on the project's wiki page, we need the following fields in separater

Hello, I would like to work with Orange as part of GSoC 2012(and continue henceforth). Apologies for joining in a bit late- i was waiting to get a proper grasp of things before discussing it here. Currently I am a Masters students in Mathematics with my bachelors in Computer Science[integrated dual degree]. Over the last year and a half, I have worked on a few ML projects and have a couple of

Dear Sir, I am Pankaj Singhal from Jaipur, India. I am very much interested and strongly looking forward in getting involved in this project Learning-to-Rank. My previous experience in this field is good. Last semester I did a similar job of ranking the URLs of the given huge dataset based on their attribute values. The dataset consisted hundreds of thousands of URLs and each url

Hi Parth, I?ve implemented SVMRanker class and also sorted out most of current Letor APIs. Now I?m trying to use INEX dataset to verify my implement. But I stuck in the indexing part. You said in the documentation that we have to add prefix when indexing. Also I notice that you set some metadata in omindex.cc of your version. But the omindex.cc has changed since 2011. I think that?s why my result

Hi, guys: I found this project idea http://trac.xapian.org/wiki/GSoCProjectIdeas#Project:LearningtoRank If it is need to be improved, I will try to handle it thanks Regards -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20130923/d0ced0d6/attachment-0002.html>

> The log command will be executed wherever it is in the template. > By "current system user", what do you mean? There'll need to be > write permission for the CGI process, which is probably the same > identity as the web server process. I basically changed the ownership of the /var/log/omega directory to the current user using: sudo chown `whoami` /var/log/omega But I

Hi, I'm working on the ticket #743 omindex: delay libmagic checks <https://trac.xapian.org/ticket/743>. As the ticket's Description mention, the call to libmagic is expensive than call the stat, so we can check the size by call the stat to get size before call libmagic to get a mime type. But how about the timestamps check? since timestamps check need to iterate the DB to check if

Hi Parth, I implemented DFR algorithms in Xapian as a part of GSOC last year under the mentorship of Olly. This year, I want to work on analyzing and optimizing the performance of the DFR algorithms and comparing them with BM25.I also want to work on profiling the query expansion schemes and test the relevance(precision and recall) / speed(time taken) of the

Hi all, While building from git with xapian-letor not ignored in bootstrap, I am getting the following make error: In function `main': /home/ayush/Desktop/xapian/xapian-letor/bin/xapian-letor-update.cc:98: undefined reference to `Xapian::Internal::str(unsigned int)' /home/ayush/Desktop/xapian/xapian-letor/bin/xapian-letor-update.cc:99: undefined reference to

Hi, I am unable to build the letor module. I am generating the configure file using autoconf. The configure file generated is throwing the error ./configure: line 2057: syntax error near unexpected token `1.10.1' ./configure: line 2057: `AM_INIT_AUTOMAKE(1.10.1 -Wportability tar-ustar)` I am not too sure what to do with this. Need help with this. Thank You Regards Karthik On Mon, Sep 29,

Hi, I?m trying to use Omega to index INEX dataset for Letor. But omindex told me these xml files are unknown. Olly told me I could tell omindex to handle them as HTML. (Thanks Olly :) ) Is it appropriate? Parth, could you give me some suggestions? Thank you! Jiarong Wei

Hi, I've read the code of letor module. And I have some questions about it: 1. In https://github.com/rishabhmehrotra/xapian/blob/master/xapian-letor/letor_internal.cc#L299, there is a write_to_file method, which save RankList into ?train.txt?. But the format for ?train.txt? is different from the one mentioned in http://trac.xapian.org/wiki/GSoC2011/LTR/Notes#QueryLevelNorm. And in