<s>
The	O
Helmert	B-Algorithm
–	I-Algorithm
Wolf	I-Algorithm
blocking	I-Algorithm
(	O
HWB	O
)	O
is	O
a	O
least	B-Algorithm
squares	I-Algorithm
solution	O
method	O
for	O
the	O
solution	O
of	O
a	O
sparse	B-Algorithm
block	B-Algorithm
system	O
of	O
linear	O
equations	O
.	O
</s>
<s>
It	O
is	O
based	O
on	O
ordinary	O
Gaussian	B-Algorithm
elimination	I-Algorithm
in	O
matrix	B-Architecture
form	O
or	O
partial	O
minimization	O
form	O
.	O
</s>
<s>
The	O
generalized	B-Algorithm
canonical	I-Algorithm
correlation	I-Algorithm
analysis	O
(	O
gCCA	B-Algorithm
)	O
is	O
the	O
statistical	O
method	O
of	O
choice	O
for	O
making	O
those	O
harmful	O
cross-covariances	O
vanish	O
.	O
</s>
<s>
The	O
HWB	O
method	O
can	O
be	O
extended	O
to	O
fast	O
Kalman	O
filtering	O
(	O
FKF	O
)	O
by	O
augmenting	O
its	O
linear	B-General_Concept
regression	I-General_Concept
equation	I-General_Concept
system	O
to	O
take	O
into	O
account	O
information	O
from	O
numerical	O
forecasts	O
,	O
physical	O
constraints	O
and	O
other	O
ancillary	O
data	O
sources	O
that	O
are	O
available	O
in	O
realtime	O
.	O
</s>
