<s>
Online	B-Protocol
video	I-Protocol
analytics	I-Protocol
(	O
also	O
known	O
as	O
Web	O
video	O
analytics	O
)	O
is	O
the	O
measurement	O
,	O
analysis	O
and	O
reporting	O
of	O
videos	O
viewed	O
online	O
.	O
</s>
<s>
Online	B-Protocol
video	I-Protocol
analytics	I-Protocol
differs	O
from	O
traditional	O
television	O
analytics	O
because	O
it	O
can	O
be	O
measured	O
using	O
census-based	O
methods	O
instead	O
of	O
panel-based	O
metrics	O
.	O
</s>
<s>
Along	O
with	O
other	O
obvious	O
dimensions	O
(	O
like	O
Country	O
,	O
Browser	B-Application
,	O
Device	O
etc	O
.	O
</s>
<s>
A	O
graphical	O
summary	O
that	O
helps	O
to	O
figure	O
out	O
how	O
viewers	O
are	O
engaged	O
with	O
a	O
specific	O
video	O
is	O
called	O
a	O
Video	O
Heatmap	B-Application
.	O
</s>
<s>
Unlike	O
heatmaps	B-Application
used	O
in	O
website	O
analytics	O
,	O
which	O
highlight	O
different	O
areas	O
of	O
a	O
web	O
page	O
depending	O
on	O
the	O
click-through	O
rate	O
,	O
a	O
video	O
heatmap	B-Application
aggregates	O
stats	O
from	O
every	O
viewing	O
session	O
and	O
calculates	O
an	O
average	O
engagement	O
rate	O
(	O
also	O
known	O
as	O
watch	O
rate	O
)	O
throughout	O
the	O
entire	O
video	O
.	O
</s>
<s>
User	O
Screen	O
contains	O
personal	O
information	O
related	O
to	O
a	O
specific	O
viewer	O
,	O
such	O
as	O
location	O
(	O
country	O
)	O
,	O
IP	O
address	O
,	O
operating	B-General_Concept
system	I-General_Concept
(	O
OS	O
)	O
,	O
web	B-Application
browser	I-Application
version	O
,	O
first	O
and	O
last	O
view	O
dates	O
,	O
and	O
average	O
engagement	O
.	O
</s>
