<s>
Microsoft	B-Application
Azure	I-Application
Cognitive	O
Search	O
,	O
formerly	O
known	O
as	O
Azure	B-Application
Search	I-Application
,	O
is	O
a	O
component	O
of	O
the	O
Microsoft	B-Application
Azure	I-Application
Cloud	B-Architecture
Platform	O
providing	O
indexing	O
and	O
querying	B-Library
capabilities	O
for	O
data	O
uploaded	O
to	O
Microsoft	O
servers	O
.	O
</s>
<s>
The	O
Search	O
as	O
a	O
service	O
framework	B-Architecture
is	O
intended	O
to	O
provide	O
developers	O
with	O
complex	O
search	O
capabilities	O
for	O
mobile	B-Application
and	O
web	O
development	O
while	O
hiding	O
infrastructure	O
requirements	O
and	O
search	O
algorithm	O
complexities	O
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
is	O
a	O
recent	O
addition	O
to	O
Microsoft	O
's	O
Infrastructure	O
as	O
a	O
Service	O
(	O
IaaS	O
)	O
approach	O
.	O
</s>
<s>
In	O
2008	O
Microsoft	O
released	O
the	O
Azure	O
platform	O
with	O
a	O
cloud	B-Architecture
based	O
component	O
code-named	O
project	B-Application
Red	I-Application
Dog	I-Application
.	O
</s>
<s>
The	O
years	O
leading	O
up	O
to	O
2013	O
were	O
spent	O
developing	O
the	O
Azure	O
framework	B-Architecture
within	O
the	O
scope	O
of	O
a	O
Microsoft	O
environment	O
.	O
</s>
<s>
In	O
2013	O
Microsoft	O
issued	O
a	O
general	O
announcement	O
announcing	O
IaaS	O
and	O
detailing	O
new	O
features	O
of	O
Azure	O
,	O
including	O
the	O
new	O
Azure	B-Application
Search	I-Application
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
is	O
an	O
API	O
based	O
service	O
that	O
provides	O
REST	B-Protocol
APIs	I-Protocol
via	O
protocols	O
such	O
as	O
OData	B-Application
or	O
integrated	O
libraries	O
such	O
as	O
the	O
.NET	B-Application
SDK	I-Application
.	O
</s>
<s>
An	O
interface	B-Application
schema	O
is	O
created	O
as	O
part	O
of	O
the	O
logical	O
index	O
container	O
that	O
provides	O
the	O
API	O
hooks	O
used	O
to	O
return	O
search	O
results	O
with	O
additional	O
features	O
integrated	O
into	O
Azure	B-Application
Search	I-Application
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
provides	O
two	O
different	O
indexing	O
engines	O
:	O
Microsofts	O
own	O
proprietary	O
natural	O
language	O
processing	O
technology	O
or	O
Apache	B-Language
Lucene	I-Language
analyzers	O
.	O
</s>
<s>
The	O
Microsoft	O
search	O
engine	O
is	O
ostensibly	O
built	O
on	O
Elasticsearch	B-Application
.	O
</s>
<s>
Azure	O
offers	O
both	O
the	O
platform	O
via	O
web	O
interface	B-Application
(	O
Platform	O
as	O
a	O
Service	O
)	O
and	O
the	O
hardware	O
via	O
virtual	O
servers	O
allocated	O
to	O
Azure	O
accounts	O
for	O
data	O
storage	O
and	O
processing	O
(	O
Infrastructure	O
as	O
a	O
Service	O
)	O
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
resides	O
within	O
the	O
Microsoft	O
IaaS	O
and	O
PaaS	O
suite	O
as	O
a	O
service	O
,	O
I.E.	O
</s>
<s>
A	O
search	O
string	O
can	O
be	O
specified	O
as	O
one	O
of	O
the	O
query	B-Protocol
parameters	I-Protocol
to	O
retrieve	O
matching	O
documents	O
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
supports	O
search	O
strings	O
using	O
simple	O
query	B-Library
syntax	O
.	O
</s>
<s>
Supported	O
features	O
include	O
logical	O
operators	O
,	O
the	O
suffix	O
operator	O
,	O
and	O
query	B-Library
with	O
Lucene	B-Language
query	B-Library
syntax	O
.	O
</s>
<s>
Lucene	B-Language
query	B-Library
syntax	O
provides	O
features	O
similar	O
to	O
simple	O
query	B-Library
syntax	O
for	O
logical	O
operators	O
and	O
wildcard	O
searches	O
while	O
also	O
supporting	O
more	O
complicated	O
functions	O
such	O
as	O
proximity	B-Application
search	I-Application
and	O
fuzzy	B-Algorithm
search	I-Algorithm
,	O
</s>
<s>
Examples	O
of	O
built-in	O
cognitive	O
skills	O
are	O
:	O
extraction	O
of	O
text	O
from	O
images	O
,	O
automatic	O
language	O
translation	O
and	O
extraction	O
of	O
named	B-General_Concept
entities	I-General_Concept
from	O
text	O
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
currently	O
supports	O
56	O
different	O
languages	O
.	O
</s>
<s>
Both	O
analyzers	O
backed	O
by	O
Lucene	B-Language
and	O
analyzers	O
backed	O
by	O
Microsofts	O
natural	O
language	O
processing	O
technology	O
are	O
supported	O
.	O
</s>
<s>
These	O
analyzers	O
provide	O
features	O
such	O
as	O
text	O
segmentation	O
,	O
word	B-General_Concept
normalization	I-General_Concept
,	O
and	O
entity	B-General_Concept
recognition	I-General_Concept
when	O
processing	O
text	O
documents	O
.	O
</s>
<s>
The	O
list	O
of	O
supported	O
languages	O
can	O
be	O
found	O
in	O
the	O
Microsoft	B-Application
Azure	I-Application
Documentation	O
.	O
</s>
<s>
Type-ahead	O
queries	B-Library
or	O
auto-complete	O
search	O
bars	O
provide	O
potential	O
search	O
terms	O
while	O
a	O
user	O
types	O
.	O
</s>
<s>
The	O
snippet	O
of	O
text	O
in	O
the	O
search	O
results	O
matching	O
the	O
search	O
query	B-Library
can	O
be	O
highlighted	O
by	O
specifying	O
a	O
set	O
of	O
field	O
names	O
as	O
one	O
of	O
the	O
query	B-Protocol
parameters	I-Protocol
for	O
hit	O
highlighting	O
.	O
</s>
<s>
Faceted	O
Navigation	O
allows	O
users	O
to	O
specify	O
a	O
field	O
to	O
facet	O
in	O
the	O
query	B-Protocol
parameters	I-Protocol
passed	O
to	O
Azure	B-Application
Search	I-Application
.	O
</s>
<s>
Azure	B-Application
Search	I-Application
supports	O
geo-spatial	O
information	O
.	O
</s>
<s>
An	O
overview	O
of	O
Geo-spatial	O
support	O
can	O
be	O
found	O
in	O
Azure	B-Application
Search	I-Application
and	O
Geo-spatial	O
Data	O
.	O
</s>
