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Table 3. Sample reasoning classifications
Code
Reasoning
10
Retrieve
10.1
Index
10.2
Similarity measure
20
Reuse
20.1
Adaptation
20.2
Interpretation
30
Revise
40
Retain
40.1
Maintenance
6.2 Research Evolution and Themes
Trend tracking comprises domains, purposes, memory, reasoning, and system
design. First some figures are provided.
Statistics. The 117 selected papers were written by 132 different authors from
all over the world. However, a grouping of papers by author clearly identifies
a group of researchers contributing particularly actively to CBR in the Health
Sciences research (see Figure 6). The average number of papers per author is
2.19, and the range 1 to 21.
Table 4. Sample design classifications
Code
Construction
Code
Construction
10
Pure CBR
60
Information Retrieval Combina-
tion
20
Rule Based Combi-
nation
70
Explanation Combination
30
Model Based Com-
bination
CBR Role Flag
40
Data Mining Combi-
nation
P
Primary Technology
40.1
Conceptual Cluster-
ing
S
Secondary Technology
40.2
Neural Networks
E
Equivalent Role Technology
40.3
Nearest Neighbor
CBR Additional
Technology Flag
40.4
Decision Tree
T
CBR is Separate
40.5
Bayesian Networks
F
CBR is Combined
50
Planning Combina-
tion
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