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 <[email protected]> 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 <[email protected]> > 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 <[email protected]> wrote: > > > > Wat means: NgramsGroups. is that the category group a keyword belongs > > > too? > > > >http://code.google.com/apis/adwords/v2009/docs/reference/TargetingIde... -- You received this message because you are subscribed to the Google Groups "AdWords API Forum" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/adwords-api?hl=.
