Re: [Kaldi-users] Weight Pushing

[Paul D. <pau...@gm...>]

Determinization in the log semiring


On Wednesday, 6 November 2013, Lahiru Samarakoon wrote:

> Hi Dan,
>
> I read about avoiding weight pushing in the Kaldi website but I couldn't
> find which stage of the graph creation compensates for that.
>
> My question is How to make them pushed without pushing? and What stage of
> graph creation (C++ binary) does it?
>
> Thanks,
> Lahiru
>
>
> On Tue, Nov 5, 2013 at 8:17 PM, Daniel Povey <dp...@gm...> wrote:
>
>> It's not an encoding change, it's a change in the graph creation
>> algorithm so the weights are "already pushed".  It has no effect on
>> the graph size.  The quality should be the same in general (although
>> it will be better under some almost-pathological cases).  It means
>> that you don't have to worry about weight pushing failing.
>> Dan
>>
>>
>> On Tue, Nov 5, 2013 at 5:56 AM, Lahiru Samarakoon <lah...@gm...>
>> wrote:
>> > Hi All,
>> >
>> > Can anyone briefly explain me the encoding mechanism used in Kaldi
>> instead
>> > of weight pushing in the decoding graph creation?
>> >
>> > What is the effect of this change to the final graph size? Is it bigger
>> when
>> > compared with a graph which uses weight pushing?
>> >
>> > Thanks,
>> > Lahiru
>> >
>> >
>> >
>> >
>> >
>> >
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>
>