Captions
========


The dev and test caption files follow the naming scheme:

"img_<LANGUAGE>-en.tok.lc.filtered.(dev|test)"

<LANGUAGE> is a two-letter code (de = German, fr = French, 
ru = Russian).


The format of the parallel image-caption pairs is:

"imagename<tab>foreign_caption ||| english_caption"



Dev and Test Images
===================

The images have to be downloaded manually. We provide a simple 
bash-script for downloading, which makes use of the following 
perl-script:

https://commons.wikimedia.org/wiki/User:AzaToth/wikimgrab.pl

Simply enter the "images" directory and call the script 
"download_dev_test.sh" from there, e.g.:

$ cd images
$ source ./download_dev_test.sh

Downloading the Full Corpus
===========================

We also provide a script for downloading the full corpus, i. e. 
(monolingual and multilingual) image annotations and their
associated images directly from Wikimedia commons. Note that 
this may take a very long time (depending on your local bandwidth)
and that we recommend distributing the task onto serveral machines.
The script can be found in the "full_corpus" directory.

We have compiled an index of 3.816.940 images on Wikimedia Commons.
To download, for example, the first 20.000 images from the full 
corpus (and their annotatins) do the following:

$ cd full_corpus
$ ./download_full_corpus.sh 0 20000 

The images will be placed in sequentially numbered directories,
one directory containg a maximum of 10.000 images. 

The annotations will be written to files named XX.captions, where XX
is a language identifier (en.cpations contains English captions, etc.)
The files are tab-seperated in the following format:

Corpus index <tab> Filename <tab> Annotated caption (including HTML "div"
 with metadata)

Please note that some images might have been deleted since the 
index was created. They will be skipped.