> Eric,
> thanks for your explanation, that does make sense!
> 1 question:
> > However, if you include a NgramGroupsSearchParameter with the ngram
> > group "car rental" the results are limited to variations of that
> > keyword:
> That is only possible after getting back first batch of keywords with
> there Ngram name.
> Then do a second call to get only the ngram group "car rental" out of
> it?
> Will the first batch contain all kewyord variations for "car rental"?
> Or is the second call with the NgramGroupsSearchParameter with the
> ngram
> group "car rental" a more complete list or yust a sublist of teh first
> call?
> On Nov 10, 5:25 pm, AdWords API Advisor <adwordsapiadvi...@google.com>
> wrote:
> > Hi,
> > I've talked with the engineers that developed this parameter and they
> > have given me the following description:
> > A keyword is assigned to the ngram group with the longest matching
> > substring. Ngram groups are defined as substrings that that appear
> > more than n times in the result set (where n is defined by the AdWords
> > system).
> > An ngram group is like a stem keyword. It is a substring of the
> > keyword that is common to many other keywords. Here are some examples
> > [keyword] => [ngram group]
> > car => car
> > car leasing => car
> > car rental => car rental
> > car rental coupons => car rental
> > The substring "car leasing" is not common enough to have its own ngram
> > group, so it goes in the "car" group. However "car rental" is a very
> > common substring, so it has its own ngram group, which includes "car
> > rental coupons". You can find out the ngram group of a keyword idea
> > by including the requestedAttributeType NGRAM_GROUP.
> > This parameter can be useful when you want to get keyword ideas that
> > are variations on an existing keyword. If you don't use an
> > NgramGroupsSearchParameter the following keyword ideas are returned
> > for the seed keyword "car rental":
> > car rentals
> > rental car
> > car hire
> > cheap hire car
> > airport
> > However, if you include a NgramGroupsSearchParameter with the ngram
> > group "car rental" the results are limited to variations of that
> > keyword:
> > car rental cheap
> > luxury car rental
> > airport car rental
> > cheapest car rental
> > Let me know if you have any other questions.
> > Best,
> > - Eric
> > On Nov 9, 3:13 pm, keesjan <adwo...@interneteffect.com> wrote:
> > > Ok thanks in forworth,
> > > this gives me a kind of feeling the the documentation can do better,
> > > isn't?
> > > On Nov 9, 6:19 pm, AdWords API Advisor <adwordsapiadvi...@google.com>
> > > wrote:
> > > > Hi,
> > > > I will have to follow up with the core engineering team to get more
> > > > information.
> > > > Best,
> > > > - Eric Koleda, AdWords API Team
> > > > On Nov 9, 7:36 am, keesjan <adwo...@interneteffect.com> wrote:
> > > > > Wat means: NgramsGroups. is that the category group a keyword belongs
> > > > > too?
> > > > >http://code.google.com/apis/adwords/v2009/docs/reference/TargetingIde...