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Hello, I can draw a basic stress plot for NMDS with the following code in package Vegan. > stressplot(parth.mds, parth.dis) When I try to specify the line and point types, it gives me error message. > stressplot(parth.mds, parth.dis, pch=1, p.col="gray", lwd=2, l.col="red") Error in plot.xy(xy, type, ...) : invalid plot type In the above code, if I removed line type, it does give...

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: > > There's xapian-letor folder in current master trunk, is this code merged > in > > 2011? > > Yes. > > > the let...

...ssion, we will talk each week now about the project. Please update the timeline/todo/journal accordingly so that we can check the status on this saturday for this week. Please remember that this half of the programme is smaller and hence we would need to be very punctual about the goals. Regards, Parth. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20120718/3ae8b479/attachment.html>

...ary explaining the deliverables so far and then the future plan. Tomorrow is the last day, so better by tomorrow morning, send this across and by the afternoon we can have a brief meeting. Please note, now a days I am in UTC+9 timezone, so we should have a meeting around UTC 6AM on 13th (Friday). Parth. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20120712/9004edee/attachment.html>

...but can?t find query files. Could you send me the link? I have registered on INEX website. And I also need to download ``INEX 2009 collection without annotation tags: (unofficial)`` on http://www.mpi-inf.mpg.de/departments/d5/software/inex/, right? Thank you! Jiarong Wei On Mar 9, 2014, at 0:52, Parth Gupta <pargup8 at gmail.com> wrote: > Hi Jiarong Wei, > > > 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...

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 b...

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

On Tue, Mar 11, 2014 at 03:20:31PM +0100, Parth Gupta wrote: > > > > On current trunk, we index the title with prefix "S" by default in > > omindex, though with a wdf inc of 5 rather than 1: > > > > indexer.index_text(title, 5, "S"); > > > > So I don't think you need t...

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...

...eas, Learning to Rank interests me a lot. Last year, I did a course on Information Retrieval at my university. Also I?m interested in Machine Learning. So, that?s why letor that combines both techs attracts me. I?d like to know more about it by improving the code. I also notice the potential mentor Parth Gupta is also the initial contributor of letor as GSOC 2011 student. That's so cool! I have built all the Xapian code from Git successfully. I got Omega running, too :D, it?s exciting! Now, I?m reading the resources provided on ideas? page. Do you have any other suggestions of knowing more ab...

...ed for validating the performance of the algorithm in the training so which you plan to implement. You should take the corresponding definitions from the letor_internal.cc and create the corresponding .cc files. Feel free to do necessary changes and in case of any doubt, feel free to ask. Regards, Parth. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20120424/dcc67873/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: letor_refactored.diff Type: appli...

...tomatically adjust the wdfs and field lengths? indexer.index_text(title, 5, "S"); -> indexer.index_text(title, 1, "S"); if it does not then we should include that part in the patch too. I like to create a patch for xapian-letor for resolving common code of xapian. Cheers, Parth. On Wed, Mar 12, 2014 at 3:13 AM, Jiarong Wei <vcamx3 at gmail.com> wrote: > Thank you Parth and Olly! I'll try it :) > > Jiarong Wei > > On Mar 11, 2014, at 16:57, Olly Betts <olly at survex.com> wrote: > > > On Tue, Mar 11, 2014 at 03:20:31PM +0100,...

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 exp...

Hello James, Parth, Following our discussion on IRC and on code review, the way FeatureVector class works needs some discussion. Presently, the FeatureVector class is defined as follows, with a fixed number of feature count (19): class FeatureVector::Internal : public Xapian::Internal::intrusive_base{ friend c...

...gt; Now, I'm reading the resources provided on ideas' page. Do you have > > any other suggestions of knowing more about the letor? > > And I'd like to test the function of letor. But I can't find code > > example. Can u give me some suggestions? > > Hopefully Parth can help here. > In order to get started with the Letor code you need to train the model and test it with the topic and qrel file. The necessary details about training and data is available at: http://trac.xapian.org/wiki/GSoC2011/LTR Cheers, Parth. > > Cheers, > Olly > > _...

...u for your interest in Letor project in Xapian. We would definitely like to consider Letor for this year's GSoC project. What I would suggest you is, start playing with the code and get acquainted with it. The latest code can be obtained from http://trac.xapian.org/wiki/ GSoC2012/LTR Regards, Parth. On Wed, Jan 22, 2014 at 10:14 PM, Tejas Nikumbh <tejasnikumbh at gmail.com>wrote: > > Hi Parth, > > I saw your name on the mentors list. I'm currently pursuing my EE > major (with a lot of CS electives) at IIT Bombay. I'm interested n > contributing to Xapia...

...I pick? I have already successfully built xapian from the git repository ( https://github.com/xapian/xapian) Since I am new to ML (well I dont know anything about it?), should I read the paper try to make sense out of it and get back too? Best Regards Manu Gupta On Wed, Dec 3, 2014 at 5:08 AM, Parth Gupta <pargup8 at gmail.com> wrote: > I have merged Jiarong's branch and xapian/master in my master brach: > https://github.com/parthg/xapian > > It builds (you would have to .nobootstrap xapain-bindings). > > It would be also good to test the feature calculation module...

Hello, I am Mudit Raj Gupta, fourth year student of M.S. (Hons.) Chemistry and B.E. (Hons.) Electronics and Instrumentation at BITS-Pilani ( http://www.bits-pilani.ac.in/). I am interested in *Machine Learning and Computaional Intelligence*. I have an interest in implementing various existing algorithms and developing modified/new algorithms related to machine learning and computational

...the refactoring. And now it looks like I have included all the files necessary for the complete code. I am sure if it will be quite easy for you now to start with the new code. I would like you to complete it by implementing (copy/paste/little modification) some of the methods. https://github.com/parthg/xapian To make it easier, lets have an IRC meeting the day after tomorrow on 7th sometime around 10:00 UTC. Meanwhile fork my branch for the latest code and this time I will help you with building issues too. The plan would be to work on that one/two day simultaneously in which I will stay online...

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