search for: inexs

Thanks for your reply! For the third question: In https://inex.mmci.uni-saarland.de/data/documentcollection.jsp, I can find inex2010-article.qrels in 2010 assessment, 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

Hello, I wanted to decide the dataset that should be used for Letor stabilisation project. I think 2009 INEX Wikipedia Collection <http://www.mpi-inf.mpg.de/departments/databases-and-information-systems/software/inex/> should work fine. It's a collection of 2,666,190 XML articles, 115 topics <http://inex.mmci.uni-saarland.de/protected/adhoc/2009-topics.zip>, 50,275 qrel

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

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

Ah. If FIRE doesn't have something that can show this suitably, then > maybe Parth can advise on access to TREC, as I know he's used some of > them in the past. > ?I can say FIRE is also a reliable source but INEX/TREC are better. INEX can give you free access and TREC is not freely available. I had used INEX for xapian in the past and some details are here:

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 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,

On Tue, Mar 11, 2014 at 12:02:15PM +0100, Parth Gupta wrote: > During the indexing with 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 >

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 that change to omindex now. > > Yes, but please

For unsupervised approaches like BM25 this approach works well but letor does not need special weighting for title in this form as it itself assigns weights to title features separately. But I see your concern it would be a problem when BM25 is used on the index with this setup. Hence its preferable to take a note of this uplift in title weight for xapian-letor and normalize it everywhere

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, Before starting my proposal, I wanted to know what is the expected output of Letor module. Is it for transfer learning (i.e you learn from one dataset and leverage it to predict the rankings of other dataset) or is it for supervised learning? For instance - Xapian currently powers the Gmane search which is by default based on BM25 weighting scheme and now suppose we want to use LETOR to rank

Hi Olly, Wouldn't setting the weight of terms in title back to normal (e.g. 5 to 1) by below line, automatically 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.

...r as I know: /etc/hosts [root at cm network-scripts]# more /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 172.17.2.1 gateway gateway.inexs.com 172.17.2.50 cm cm.inexs.com #172.17.2.52 cm2 cm2.inexs.com 172.17.2.51 cs1 cs1.inexs.com #172.17.2.53 cs2 cs2.inexs.com 172.17.2.137 ingrid ingrid.inexs.com 172.17.2.161 vail vail.inexs.com 172.17.2.162 beaver beaver.inexs.com 172.17.2.175 plotting...

Hi Parth, I have a few questions- 1. Could you please provide me with the link for query-file, qrel-file for the dataset available at http://www.mpi-inf.mpg.de/departments/d5/software/inex/ . 2. I wanted to know how automated testing would be implemented. Will there be test cases like a test query must match this particular N results and this particular ranking. Or will it be in terms of

Hi, I have started getting a hang of the xapian codebase. I think I would like to try my hands on the letor module of xapian. Could you please suggest some free data set for the training and testing of letor features. I am not able to get the INEX data set from anywhere (the one mentioned by parth gupta in his GSOC 2011 projecct. Regards Karthik On Mon, Sep 22, 2014 at 4:23 PM, Olly Betts

Hello, I am beginning work on the perf test module. The initial steps that I aim to accomplish are :- -> Download the wikipedia dumps for multiple languages . -> Write python scripts to tokenize the dump (will probably use something like nltk which has powerful inbuilt tokenizers) -> Discuss and finalize the design of the search and query expansion perf tests as I want to complete them

Hi, Sorry for the long hiatus. I was caught with some other deadlines. Could some one tell me some specific expectations from Letor for GSOC 2015? I am currently trying out some learning algorithm implementations but need some help with it. Can Parth, James and others related to LETOR please tell me the IRC availability for the next few days. Regards Karthik On Wed, Oct 22, 2014 at 3:39 AM,

Dear All, Having a bit of trouble with plotting two y variables on the same graph. I cannot manage to get the secondary y axis label on to the right of the axis - it gets plotted beyond the graphic window I assume?! The way I constructed the graph is thus: plot(data[,3],data[,2],axes=F, type="b") ## plots my data from two data colums without axes - fine axis(1, at=data[,3])

Hi James, > We probably don't want them committed in git where they're evaluation > runs (because we can recreate them); a gist might be more appropriate. Sorry, I have moved results files over to gist for each individual weighting scheme. Link: https://gist.github.com/ivmarkp/secret > I can't tell, but are some of those files from FIRE? If so, they > shouldn't be