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# Case Based Reasoning (CBR) Algorithm

Authors:
Case based reasoning (CBR) algorithm
Prepared by: Pamir


Supervised by: Prof. Dr. Nadeem Javaid

1
Outlines




 
!""
2
Preliminaries
#\$lazy learnerseager
learners %&'(
Lazy learners: \$

)
(
*\$"(
+,-./0.112/02(
Eager learners: "
"
(
+,-#1"\$!11
3
CBR’s background and introduction (1/2)
Nearest neighbor classifiers3+
%4'(
CBR3"(
/",\$
(
"\$"5(
#/"(
Challenges with CBR
6\$
(
,"
, (
4
CBR’s background and introduction (2/2)
/
\$\$"""\$
(
\$\$
 "(
\$%7'
#\$02
*\$

8\$\$"/
0/2
5
How CBR works?
,
9,\$
9
(
\$\$
(
#
(
#\$\$/"
(
6
CBR steps (1/5)
%:'(
Retrieve: ;""\$"
"(!\$\$
"(
Reuse: 8"(#
\$""(
Revise: ""
02\$"(
Retain: !\$
,\$(
7
CBR steps (2/5)
Retrieve: library and problem cases
6< "\$"
02(!"
(
Reuse: One-hot encoding
8\$
"(
# /
"\$"(
)\$\$\$ 
""
"\$"*",,
&(
8
CBR steps (3/5)
Mahalanobis distance
"0\$2
\$(
#8"
"02
02(
9,\$","
\$\$/
(
8\$\$
 /*
\$"\$(
9
CBR steps (4/5)
#+ &(
0&2

)"\$=/&#"",(
Covariance matrix: !",0/"
,,",">",2
 ,""
""(9,"((
"(
9"\$",*"
(
Revise: !
,\$0\$2\$(
10
CBR steps (5/5)

6(&-8"+
Revise: !
,\$0\$2\$(
Retain: ,\$(
11
Comparison to other techniques
/\$0.2\$\$
%?'
\$"\$,
(
"
,(
,%@'
9.11\$,,
9.11."".
""
12
,""

"
!"
(
"
\$,\$
Anecdotal evidence: "
(\$
13
%@'
/
9\$ /\$
\$
\$\$"
" (
14
References
%&'-AA(A///?:&B@47
%4'-AA((A/////A
%7'-AA((A"AC&D/E&EA/
FFFF
%:'-AA(A\$"A
%?'
-AA((AAA///

%@'-AA(((AAB&A/AA&7(
15
Thank You !!!
16
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