> On Jun 24, 2015, at 10:47 , Read, James C <jcr...@essex.ac.uk> wrote:
> 
> So you still think it's fine that the default would perform at 37 BLEU points 
> less than just selecting the most likely translation of each phrase? 

Yes, I'm pretty sure we all think that's fine, because one of the steps of 
building a system is tuning.

Is this really the essence of your complaint? That the behavior without tuning 
is not very good? 

(Please try to reply without your usual snarkiness.)

- John Burger
  MITRE

> You know I think I would have to try really hard to design a system that 
> performed so poorly.
> 
> James
> 
> ________________________________________
> From: amittai axelrod <amit...@umiacs.umd.edu>
> Sent: Wednesday, June 24, 2015 5:36 PM
> To: Read, James C; Lane Schwartz
> Cc: moses-support@mit.edu; Philipp Koehn
> Subject: Re: [Moses-support] Major bug found in Moses
> 
> what *i* would do is tune my systems.
> 
> ~amittai
> 
> On 6/24/15 09:15, Read, James C wrote:
>> Thank you for such an invitation. Let's see. Given the choice of
>> 
>> a) reading through thousands of lines of code trying to figure out why the 
>> default behaviour performs considerably worse than merely selecting the most 
>> likely translation of each phrase or
>> b) spending much less time implementing a simple system that does just that
>> 
>> which one would you do?
>> 
>> For all know maybe I've already implemented such a system that does just 
>> that and not only that improves considerably on such a basic benchmark. But 
>> given that on this list we don't seem to be able to accept that there is a 
>> problem with the default behaviour of Moses I can only conclude that nobody 
>> would be interested in access to the code of such a system.
>> 
>> James
>> 
>> ________________________________________
>> From: amittai axelrod <amit...@umiacs.umd.edu>
>> Sent: Friday, June 19, 2015 7:52 PM
>> To: Read, James C; Lane Schwartz
>> Cc: moses-support@mit.edu; Philipp Koehn
>> Subject: Re: [Moses-support] Major bug found in Moses
>> 
>> if we don't understand the problem, how can we possibly fix it?
>> all the relevant code is open source. go for it!
>> 
>> ~amittai
>> 
>> On 6/19/15 12:49, Read, James C wrote:
>>> So, all I did was filter out the less likely phrase pairs and the BLEU
>>> score shot up. Was that such a stroke of genius? Was that not blindingly
>>> obvious?
>>> 
>>> 
>>> Your telling me that redesigning the search algorithm to prefer higher
>>> scoring phrase pairs is all we need to do to get a best paper at ACL?
>>> 
>>> 
>>> James
>>> 
>>> 
>>> 
>>> ------------------------------------------------------------------------
>>> *From:* Lane Schwartz <dowob...@gmail.com>
>>> *Sent:* Friday, June 19, 2015 7:40 PM
>>> *To:* Read, James C
>>> *Cc:* Philipp Koehn; Burger, John D.; moses-support@mit.edu
>>> *Subject:* Re: [Moses-support] Major bug found in Moses
>>> On Fri, Jun 19, 2015 at 11:28 AM, Read, James C <jcr...@essex.ac.uk
>>> <mailto:jcr...@essex.ac.uk>> wrote:
>>> 
>>>     What I take issue with is the en-masse denial that there is a
>>>     problem with the system if it behaves in such a way with no LM + no
>>>     pruning and/or tuning.
>>> 
>>> 
>>> There is no mass denial taking place.
>>> 
>>> Regardless of whether or not you tune, the decoder will do its best to
>>> find translations with the highest model score. That is the expected
>>> behavior.
>>> 
>>> What I have tried to tell you, and what other people have tried to tell
>>> you, is that translations with high model scores are not necessarily
>>> good translations.
>>> 
>>> We all want our models to be such that high model scores correspond to
>>> good translations, and that low model scores correspond with bad
>>> translations. But unfortunately, our models do not innately have this
>>> characteristic. We all know this. We also know a good way to deal with
>>> this shortcoming, namely tuning. Tuning is the process by which we
>>> attempt to ensure that high model scores correspond to high quality
>>> translations, and that low model scores correspond to low quality
>>> translations.
>>> 
>>> If you can design models that naturally correspond with translation
>>> quality without tuning, that's great. If you can do that, you've got a
>>> great shot at winning a Best Paper award at ACL.
>>> 
>>> In the meantime, you may want to consider an apology for your rude
>>> behavior and unprofessional attitude.
>>> 
>>> Goodbye.
>>> Lane
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Moses-support mailing list
>>> Moses-support@mit.edu
>>> http://mailman.mit.edu/mailman/listinfo/moses-support
>>> 
>> 
> 
> _______________________________________________
> Moses-support mailing list
> Moses-support@mit.edu
> http://mailman.mit.edu/mailman/listinfo/moses-support


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