<s>
Madcap	B-General_Concept
is	O
a	O
prototype	O
system	O
for	O
using	O
computers	O
to	O
automatically	O
segment	O
and	O
highlight	O
a	O
video	B-Application
stream	I-Application
that	O
was	O
designed	O
by	O
Dan	O
Russell	O
's	O
group	O
at	O
PARC	O
.	O
</s>
<s>
The	O
digital	O
video	O
of	O
weekly	O
forums	O
was	O
stored	O
on	O
a	O
media	B-Application
server	I-Application
,	O
any	O
events	O
such	O
as	O
clapping	O
were	O
marked	O
and	O
time-stamped	O
.	O
</s>
