There is an implementation of BLEU score in Python NLTK,
nltk.translate.bleu_score.corpus_bleu
But I am not sure if it is the same as the mtevalv13a.pl script.
What is the difference between them?
What is the difference between mteval-v13a.pl and NLTK BLEU?
1.5k views Asked by Ssamu Vut At
1
There are 1 answers
Related Questions in MACHINE-LEARNING
- How to open and read video stream in Matlab
- Interpolation and replace zeroes
- How can I fix my code to do line by line conditional statements in Matlab
- matlab crash during acquisition of pointgrey images
- Calling text file
- Apply gaussian filter on text
- re-plotting of data on same GUI axes in matlab
- Issue with nume1 in MATLAB
- Multiply two variables in Matlab with vpa - high precision
- ODE - Solving Parameter Dependent on Variable [Matlab]
Related Questions in NLP
- How to open and read video stream in Matlab
- Interpolation and replace zeroes
- How can I fix my code to do line by line conditional statements in Matlab
- matlab crash during acquisition of pointgrey images
- Calling text file
- Apply gaussian filter on text
- re-plotting of data on same GUI axes in matlab
- Issue with nume1 in MATLAB
- Multiply two variables in Matlab with vpa - high precision
- ODE - Solving Parameter Dependent on Variable [Matlab]
Related Questions in NLTK
- How to open and read video stream in Matlab
- Interpolation and replace zeroes
- How can I fix my code to do line by line conditional statements in Matlab
- matlab crash during acquisition of pointgrey images
- Calling text file
- Apply gaussian filter on text
- re-plotting of data on same GUI axes in matlab
- Issue with nume1 in MATLAB
- Multiply two variables in Matlab with vpa - high precision
- ODE - Solving Parameter Dependent on Variable [Matlab]
Related Questions in MACHINE-TRANSLATION
- How to open and read video stream in Matlab
- Interpolation and replace zeroes
- How can I fix my code to do line by line conditional statements in Matlab
- matlab crash during acquisition of pointgrey images
- Calling text file
- Apply gaussian filter on text
- re-plotting of data on same GUI axes in matlab
- Issue with nume1 in MATLAB
- Multiply two variables in Matlab with vpa - high precision
- ODE - Solving Parameter Dependent on Variable [Matlab]
Related Questions in BLEU
- How to open and read video stream in Matlab
- Interpolation and replace zeroes
- How can I fix my code to do line by line conditional statements in Matlab
- matlab crash during acquisition of pointgrey images
- Calling text file
- Apply gaussian filter on text
- re-plotting of data on same GUI axes in matlab
- Issue with nume1 in MATLAB
- Multiply two variables in Matlab with vpa - high precision
- ODE - Solving Parameter Dependent on Variable [Matlab]
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
Popular Tags
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
TL;DR
Use https://github.com/mjpost/sacrebleu when evaluating Machine Translation systems.
In Short
No, the BLEU in NLTK isn't the exactly the same as the
mteval-13a.perl.But it can get really close, see https://github.com/nltk/nltk/issues/1330#issuecomment-256237324
The details of the comparison and the dataset used can be downloaded from https://github.com/nltk/nltk_data/blob/gh-pages/packages/models/wmt15_eval.zip or:
The major differences:
In Long
There are several difference between
mteval-13a.plandnltk.translate.corpus_bleu:The first difference is the fact that
mteval-13a.plcomes with its own NIST tokenizer while the NLTK version of BLEU is the implementation of the metric and assumes that input is pre-tokenized.The other major difference is that
mteval-13a.plexpects the input to be in.sgmformat while NLTK BLEU takes in python list of lists of strings, see the README.txt in the zipball here for more information of how to convert textfile to SGM.mteval-13a.plexpects an ngram order of at least 1-4. If the minimum ngram order for the sentence/corpus is less than 4, it will return a 0 probability which is amath.log(float('-inf')). To emulate this behavior, NLTK has a put an_emulate_multibleuflag:mteval-13a.plis able to generate NIST scores while NLTK doesn't have NIST score implementation (at least not yet)Other than the differences, NLTK BLEU scores packed in more features:
to handle fringe cases that the original BLEU (Papineni, 2002) overlooked
Also to handle fringe cases where the largest order of Ngram is < 4, the uniform weights of the individual ngram precision will be reweighted such that the mass of the weights sums to 1.0
while NIST has a smoothing method for geometric sequence smoothing, NLTK has an equivalent object with the same smoothing method and even more smoothing methods to handle sentence level BLEU from Chen and Collin, 2014
Lastly to validate the features added in NLTK's version of BLEU, a regression test is added to accounts for them, see https://github.com/nltk/nltk/blob/develop/nltk/test/unit/translate/test_bleu.py