<s>
Data	B-Algorithm
Stream	I-Algorithm
Mining	I-Algorithm
(	O
also	O
known	O
as	O
stream	O
learning	O
)	O
is	O
the	O
process	O
of	O
extracting	O
knowledge	O
structures	O
from	O
continuous	O
,	O
rapid	O
data	O
records	O
.	O
</s>
<s>
A	O
data	B-General_Concept
stream	I-General_Concept
is	O
an	O
ordered	O
sequence	O
of	O
instances	O
that	O
in	O
many	O
applications	O
of	O
data	B-Algorithm
stream	I-Algorithm
mining	I-Algorithm
can	O
be	O
read	O
only	O
once	O
or	O
a	O
small	O
number	O
of	O
times	O
using	O
limited	O
computing	O
and	O
storage	O
capabilities	O
.	O
</s>
<s>
In	O
many	O
data	B-Algorithm
stream	I-Algorithm
mining	I-Algorithm
applications	O
,	O
the	O
goal	O
is	O
to	O
predict	O
the	O
class	O
or	O
value	O
of	O
new	O
instances	O
in	O
the	O
data	B-General_Concept
stream	I-General_Concept
given	O
some	O
knowledge	O
about	O
the	O
class	O
membership	O
or	O
values	O
of	O
previous	O
instances	O
in	O
the	O
data	B-General_Concept
stream	I-General_Concept
.	O
</s>
<s>
Often	O
,	O
concepts	O
from	O
the	O
field	O
of	O
incremental	B-Algorithm
learning	I-Algorithm
are	O
applied	O
to	O
cope	O
with	O
structural	O
changes	O
,	O
on-line	B-Algorithm
learning	I-Algorithm
and	O
real-time	O
demands	O
.	O
</s>
<s>
This	O
problem	O
is	O
referred	O
to	O
as	O
concept	B-Algorithm
drift	I-Algorithm
.	O
</s>
<s>
Detecting	O
concept	B-Algorithm
drift	I-Algorithm
is	O
a	O
central	O
issue	O
to	O
data	B-Algorithm
stream	I-Algorithm
mining	I-Algorithm
.	O
</s>
<s>
Other	O
challenges	O
that	O
arise	O
when	O
applying	O
machine	O
learning	O
to	O
streaming	O
data	O
include	O
:	O
partially	O
and	O
delayed	O
labeled	O
data	O
,	O
recovery	O
from	O
concept	B-Algorithm
drifts	I-Algorithm
,	O
and	O
temporal	O
dependencies	O
.	O
</s>
<s>
Examples	O
of	O
data	B-General_Concept
streams	I-General_Concept
include	O
computer	O
network	O
traffic	O
,	O
phone	O
conversations	O
,	O
ATM	O
transactions	O
,	O
web	O
searches	O
,	O
and	O
sensor	O
data	O
.	O
</s>
<s>
Data	B-Algorithm
stream	I-Algorithm
mining	I-Algorithm
can	O
be	O
considered	O
a	O
subfield	O
of	O
data	B-Application
mining	I-Application
,	O
machine	O
learning	O
,	O
and	O
knowledge	O
discovery	O
.	O
</s>
<s>
MOA	B-Language
(	O
Massive	B-Language
Online	I-Language
Analysis	I-Language
)	O
:	O
free	O
open-source	O
software	O
specific	O
for	O
mining	O
data	B-General_Concept
streams	I-General_Concept
with	O
concept	B-Algorithm
drift	I-Algorithm
developed	O
in	O
Java	O
.	O
</s>
<s>
It	O
has	O
several	O
machine	O
learning	O
algorithms	O
(	O
classification	B-General_Concept
,	O
regression	O
,	O
clustering	B-Algorithm
,	O
outlier	O
detection	O
and	O
recommender	O
systems	O
)	O
.	O
</s>
<s>
Also	O
,	O
it	O
contains	O
a	O
prequential	O
evaluation	O
method	O
,	O
the	O
EDDM	O
concept	B-Algorithm
drift	I-Algorithm
methods	O
,	O
a	O
reader	O
of	O
ARFF	O
real	O
datasets	O
,	O
and	O
artificial	O
stream	O
generators	O
as	O
SEA	O
concepts	O
,	O
STAGGER	O
,	O
rotating	O
hyperplane	O
,	O
random	O
tree	O
,	O
and	O
random	O
radius	O
based	O
functions	O
.	O
</s>
<s>
MOA	B-Language
supports	O
bi-directional	O
interaction	O
with	O
Weka	B-Language
(	O
machine	O
learning	O
)	O
.	O
</s>
<s>
scikit-multiflow	B-Application
:	O
A	O
machine	O
learning	O
framework	O
for	O
multi-output/multi	O
-label	O
and	O
stream	B-General_Concept
data	I-General_Concept
implemented	O
in	O
Python	O
.	O
</s>
<s>
scikit-multiflow	B-Application
contains	O
stream	O
generators	O
,	O
stream	O
learning	O
methods	O
for	O
single-target	O
and	O
multi-target	O
,	O
concept	B-Algorithm
drift	I-Algorithm
detectors	O
,	O
evaluation	O
and	O
visualisation	O
methods	O
.	O
</s>
<s>
:	O
StreamDM	O
is	O
an	O
open	O
source	O
framework	O
for	O
big	B-Application
data	I-Application
stream	O
mining	O
that	O
uses	O
the	O
Spark	O
Streaming	O
extension	O
of	O
the	O
core	O
Spark	O
API	O
.	O
</s>
<s>
RiverML	O
:	O
River	O
is	O
a	O
Python	O
library	O
for	O
online	B-Algorithm
machine	I-Algorithm
learning	I-Algorithm
.	O
</s>
<s>
It	O
is	O
the	O
result	O
of	O
a	O
merger	O
between	O
creme	O
and	O
scikit-multiflow	B-Application
.	O
</s>
<s>
Rebuild	O
support	O
for	O
concept	B-Algorithm
drift	I-Algorithm
issues	O
.	O
</s>
