search for: gsoc2011

...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 https://github.com/rishabhmehrotra/xapian/blob/master/xapian-letor/letor_internal_refactored.cc#L716, Qid and DocID become optional. What format should we use for ?train.txt?? Is there any sample ?train.txt? available? 2. In http://trac.xapian.org/wiki/GSoC2011/LTR...

...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 the one mentioned in http://trac.xapian.org/wiki/GSoC2011/LTR/Notes#QueryLevelNorm. And in https://github.com/rishabhmehrotra/xapian/blob/master/xapian-letor/letor_internal_refactored.cc#L716, Qid and DocID become optional. What format should we use for ?train.txt?? Is there any sample ?train.txt? available? > > > You can find a sample of train...

GSOC application deadline is approaching fast. I just want to make sure I submitted all the required documents for the application. 1. I submitted my application on the http://www.google-melange.com/gsoc/homepage/google/gsoc2011 page 2. I posted my application here (<llvmdev at cs.uiuc.edu>) and had quite a few comments and suggestions Anything else I need to do ? -- Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/...

Hi Olly: I have updated my proposal, could you give me more advice? http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/fan/1 Thank you! -- My Homepage: http://sites.google.com/site/zhfan555/ PhD Student at Nankai U and Intern at MSRA -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20110408/b2c7777d/attachment.html>

We've decided to apply for Google's Summer of Code this year - for background info on the programme see: http://www.google-melange.com/gsoc/program/home/google/gsoc2011 We applied last year, and while we didn't get a place, the feedback was positive and we were encouraged to apply again this year. I'm happy to act as admin (which I've done for SWIG in the past, so I know what's involved) and submit the application. We're putting together a l...

...; > 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 > > _______________________________________________ > Xapian-devel mailing list > Xapian-devel at lists.xapian.org > http://lists.xapian.org/mailman/listinfo/xapian-devel > -------------- next part -------------- An HTML attachm...

Hi, guys I am Wenjin from Graduate School of Chinese Academy of Science, pursing a master degree and my current research interests including using Data mining and Information retrieve technology to analysis software engineering (SE) data and support SE. I have great interested in "Weight Schemes" project. and in the last few days I have learnt some detail about DFR model family by

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 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

Hello guys, I have an weight value which is calculated by some factor and i need to add the weight with the relevancy value of a result and sort it with that value is that possible in xapian. Thanks, VishnuKumar -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20130302/9831e287/attachment-0001.html>

Dear all, My name is Hanxiao Sun and I am a master student in the University of Chinese Academy of Sciences. I am so glad to be selected by Xapian as the GSoC student. This is my first time to work with open source community. I hope I can do a good job with you in this summer ! In my proposal, I followed the scope of the LTR project on the ideas page. But, after the interview, it seems to need

How do I submit my GSOC proposal to the llvmdev mailing list ? -- Kind Regards Xin Tong -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20110328/4f068139/attachment.html>

...st ? > Posting your proposal to the mailing list is just to get feedback *before* submitting it (which is very much recommended). To actually submit your proposal, you need to register on the Google Summer of Code website and submit it there. http://www.google-melange.com/gsoc/homepage/google/gsoc2011 > > -- > Kind Regards > > Xin Tong > > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu > http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev > > -- Thanks, Justin Holewin...

To Whom It May Concern: My name is Daniel DaCosta. I am a first year PhD Student at the University of Minnesota. I am working with the Programming Languages group at UMN. I am interested in type theory and logic based languages, including both practical and theoretical applications. I am inquiring about a proposal that would involve either toolchain extensions or proof of concept implementation

Hello, I am Parth Gupta, a selected GSoC 2011 student of Xapian. I have made a wiki page of the proposed project where I basically aim to introduce the project idea. http://trac.xapian.org/wiki/GSoC2011/LTR Hope to have a nice time ahead with xapian. Cheers, Parth, http://sites.google.com/site/parthg88 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.xapian.org/pipermail/xapian-devel/attachments/20110429/954e421d/attachment.html>

I wonder anyone has successful experience on supporting Chinese and Japanese? Where did you make change to support index creation, where did you change the code to support search? did you be able to support Synonymy? where to support this? did you support auto completion(user enter partial of a word, the search engine find the complete words)? thanks for any info sharing, Bruce

Hello, I am looking at the Xapian database spelling support, with the idea of getting rid of the cumbersome use of aspell in my application. One advantage of aspell, though, (in my eye), is that it can supply a list of alternate spellings, not just the one it considers best. In some cases, this can be useful. 2 examples on my test index: porbability: xapian suggests portability, which is nice,

...th omindex, only you need to make sure is indexing > with prefix 'S' for title as explained here in Letor documentation: > xapian-letor/docs/letor.rst > > Previously when I edited omindex.cc it was modified as can be seen > here<http://trac.xapian.org/browser/svn/branches/gsoc2011-parth/xapian-applications/omega/omindex.cc>on > line 838 and block 1532-1559. > > But now we have the same as xapian-letor/bin/xapian-letor-update.cc so > before starting with questletor.cc you need to run it once for each db and > in this case all you need to make sure is below...

Hi, Wanted to know if other normalization techniques like normalization by standard-deviation have been tried to normalize the Feature-list in Letor. Regards, Ayush Pandey.

Hi, I have several questions regarding the letor module,I looked at the framework of learning to rank in xapian http://rishabhmehrotra.com/gsoc/17.png, I am a little confused. Why using deep learning to find unsupervised features in test data? Since in my understanding, learning to rank model usually learn features from the training data then apply the model to the test data? Why test set and