> I have a basic understanding that in regards to a specific search,
> 'relevance' tends to choose videos that use the search term often and
> are relatively recent and popular.

> But my question is how this criteria is used in a blank search.  If no
> search term is provided, I would think that 'relevance' would choose
> generally recent and popular results.  However in my experience this
> is not the case.

> Perhaps the fact that I am also specifying a time parameter is
> affecting this, but then I would assume results would be based on
> popularity alone.

> But it is not sorting primarily by the popularity in the time frame I
> specified (this week), so perhaps it is gauging popularity in a
> smaller time frame than the one I have chosen such as views per day or
> views per hour, instead of views per week.

> I have tried refreshing the top videos in my results to gauge if they
> are indeed receiving more views per hour, or per day than lower ranked
> results, but I do not see an indication of this.

> Based on these conclusions, can you provide at least some insight as
> to what the 'relevance' of search results in a blank search means?

> On 5/7/12, Jeffrey Posnick <je...@google.com> wrote:

> > Hello,

> >  You're correct that the default is orderby=relevance. We can't commit
> > to any specific definition of what "relevance" means in this
> > particular case, and I wouldn't make assumptions about the types of
> > results you'd get. If you need a more meaningful ordering then
> > specifically setting orderby to a desired value other than "relevance"
> > is advised.

> > Cheers,
> > -Jeff Posnick, YouTube API Team
> > groups.google.com/group/youtube-api-gdata | apiblog.youtube.com |
> > @YouTubeDev

> > On May 7, 9:54 am, djkanoko <djkan...@gmail.com> wrote:
> >> I am grabbing a list of recent videos in a particular category using the
> >> following:

> >>https://gdata.youtube.com/feeds/api/videos?time=this_week&category=<
> >> category >

> >> I would like to know how the videos in the response are sorted.  I assume
> >> it is using the default 'orderby' value of 'relevance', but for an empty
> >> search I'm not sure what relevance means.

> >> There appears to be a preference towards the number of views each video
> >> has, but it is clearly not sorted by this number and there are always a
> >> few
> >> videos in the response with very few or no views.

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