<s>
A	O
sensor	B-Device
grid	I-Device
integrates	O
wireless	B-Architecture
sensor	I-Architecture
networks	I-Architecture
with	O
grid	B-Architecture
computing	I-Architecture
concepts	O
to	O
enable	O
real-time	O
data	O
collection	O
and	O
the	O
sharing	O
of	O
computational	O
and	O
storage	O
resources	O
for	O
sensor	O
data	O
processing	O
and	O
management	O
.	O
</s>
<s>
The	O
concept	O
of	O
a	O
sensor	B-Device
grid	I-Device
was	O
first	O
defined	O
in	O
the	O
Discovery	O
Net	O
project	O
where	O
a	O
distinction	O
was	O
made	O
between	O
“	O
sensor	B-Architecture
networks	I-Architecture
”	O
and	O
“	O
sensor	B-Device
grids	I-Device
”	O
.	O
</s>
<s>
Briefly	O
whereas	O
the	O
design	O
of	O
a	O
sensor	B-Architecture
network	I-Architecture
addresses	O
the	O
logical	O
and	O
physical	O
connectivity	O
of	O
the	O
sensors	O
,	O
the	O
focus	O
of	O
constructing	O
a	O
sensor	B-Device
grid	I-Device
is	O
on	O
the	O
issues	O
relating	O
to	O
the	O
data	O
management	O
,	O
computation	O
management	O
,	O
information	O
management	O
and	O
knowledge	O
discovery	O
management	O
associated	O
with	O
the	O
sensors	O
and	O
the	O
data	O
they	O
generate	O
,	O
and	O
how	O
they	O
can	O
be	O
addressed	O
within	O
an	O
open	O
computing	O
environment	O
.	O
</s>
<s>
In	O
particular	O
in	O
a	O
Sensor	B-Device
Grid	I-Device
is	O
characterized	O
by	O
:	O
</s>
<s>
Distributed	O
Sensor	O
Data	O
Access	O
and	O
Integration	O
:	O
relating	O
to	O
both	O
the	O
heterogeneity	O
and	O
geographic	O
distribution	O
of	O
the	O
sensors	O
within	O
a	O
sensor	B-Device
grid	I-Device
and	O
how	O
sensors	O
can	O
be	O
located	O
,	O
accessed	O
and	O
integrated	O
within	O
a	O
particular	O
study	O
.	O
</s>
<s>
Distributed	O
Reference	O
Data	O
Access	O
and	O
Integration	O
:	O
relating	O
to	O
the	O
need	O
for	O
integrating	O
the	O
analysis	O
data	O
collected	O
from	O
a	O
Sensor	B-Device
Grid	I-Device
with	O
other	O
forms	O
of	O
data	O
available	O
of	O
the	O
Internet	O
.	O
</s>
<s>
Intensive	O
and	O
Open	O
Data	O
Analysis	O
Computation	O
:	O
relating	O
to	O
the	O
need	O
for	O
using	O
a	O
multitude	O
of	O
analysis	O
components	O
such	O
as	O
statistical	O
,	O
clustering	O
,	O
visualization	O
and	O
data	O
classification	O
tools	O
that	O
could	O
be	O
executing	O
remotely	O
on	O
high	O
performance	O
computing	O
servers	O
on	O
a	O
computational	B-Architecture
Grid	I-Architecture
.	O
</s>
<s>
The	O
sensor	B-Device
grid	I-Device
enables	O
the	O
collection	O
,	O
processing	O
,	O
sharing	O
,	O
visualization	O
,	O
archiving	O
and	O
searching	O
of	O
large	O
amounts	O
of	O
sensor	O
data	O
.	O
</s>
<s>
There	O
are	O
several	O
rationales	O
for	O
a	O
sensor	B-Device
grid	I-Device
.	O
</s>
<s>
Finally	O
,	O
a	O
sensor	B-Device
grid	I-Device
provides	O
seamless	O
access	O
to	O
a	O
wide	O
variety	O
of	O
resources	O
in	O
a	O
pervasive	O
manner	O
.	O
</s>
<s>
Advanced	O
techniques	O
in	O
artificial	B-Application
intelligence	I-Application
,	O
data	B-General_Concept
fusion	I-General_Concept
,	O
data	B-Application
mining	I-Application
,	O
and	O
distributed	O
database	O
processing	O
can	O
be	O
applied	O
to	O
make	O
sense	O
of	O
the	O
sensor	O
data	O
and	O
generate	O
new	O
knowledge	O
of	O
the	O
environment	O
.	O
</s>
<s>
Thus	O
,	O
sensor	B-Device
grids	I-Device
are	O
well	O
suited	O
for	O
adaptive	O
and	O
pervasive	B-Architecture
computing	I-Architecture
applications	O
.	O
</s>
<s>
A	O
sensor	B-Device
grid	I-Device
based	O
architecture	O
has	O
many	O
applications	O
such	O
as	O
environmental	O
and	O
habitat	O
monitoring	O
,	O
healthcare	O
monitoring	O
of	O
patients	O
,	O
weather	O
monitoring	O
and	O
forecasting	O
,	O
military	O
and	O
homeland	O
security	O
surveillance	O
,	O
tracking	O
of	O
goods	O
and	O
manufacturing	O
processes	O
,	O
safety	O
monitoring	O
of	O
physical	O
structures	O
and	O
construction	O
sites	O
,	O
smart	O
homes	O
and	O
offices	O
,	O
and	O
many	O
other	O
uses	O
currently	O
beyond	O
our	O
imagination	O
.	O
</s>
<s>
Various	O
architectures	O
that	O
can	O
be	O
used	O
for	O
such	O
applications	O
as	O
well	O
as	O
different	O
kinds	O
of	O
data	O
analysis	O
and	O
data	B-Application
mining	I-Application
that	O
can	O
be	O
conducted	O
.	O
</s>
