Hi Dian,
The NgramGroupsSearchParameter doesn't match your use case perfectly,
and that is because keywords can only belong to one ngram group. If
you include the requestedAttributeType NGRAM_GROUP you can see which
group a returned keyword is in. The keyword "betriebliche
altersvorsorge" is popular enough to have it's own ngram group, which
is why it doesn't show up when you filter for the "altersvorsorge"
ngram group.
If you want to split keywords by "related" and "additional", your best
bet may be to do the following:
- Don't use the NgramGroupsSearchParameter and return all types of
keywords.
- Request the NGRAM_GROUP attribute with your results.
- For all ideas where the NGRAM_GROUP contains the source keyword,
treat as "related".
- For all ideas where the NGRAM_GROUP doesn't contain the source
keyword, treat as "additional".
Best,
- Eric Koleda, AdWords API Team
On Feb 22, 9:58 am, "web.dev" <perl....@gmail.com> wrote:
> Unfortunately the results generated after using n-gram groups didn't
> work for me!
> I have tested using the NgramGroupsSearchParameter but the results did
> not fulfill my expectations - matching the way the external Keyword
> Tool generated "related" vs. "additional" keywords was not successful.
>
> The example (using the PHP lib):
> $selector->searchParameters = array($relatedToKeywordSearchParameter,
> $keywordMatchTypeParameter
> //, new NgramGroupsSearchParameter(array("altersvorsorge"))
> , new LanguageTargetSearchParameter(array(new LanguageTarget('de'))));
>
> The results are:
> 1) betriebliche altersvorsorge
> 2) altersvorsorge rentenversicherung
> ...
> If I uncomment the line regarding n-gram the first result is not
> returned - so it is an "additional" keyword (since it's ngram group is
> the keyword itself). But according to the Keyword Tool this is a
> "related" and not an "additional" keyword - it is even the most
> related one!
>
> Any suggestions on this topic? Google Team?
>
> Thanks in advance,
> Dian
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