Information Technology Reference
In-Depth Information
The design of guideline recommendation takes into account two impacts: (1) diet
or exercise guidelines (
DG
or
EG
) with regard to physical examination items (
PEI
);
and (2) physical examination items
with regard to the diseases (
D
). The processes of
guideline recommendation are explained in more detail below.
Step 1. Map Danger Level of Disease.
According to the physical examination items
users have,
DEG
first maps the danger level
PEI
n
,
k
bases on the vital sign of each
physical examination item, and collects the corresponding weighted
DPW
t
of
PEI
n
,
k
related a disease
D
p
defined by medical experts or health care providers.
Step 2. Collect Full Diet and Exercise Guidelines.
According to the danger level
PEI
n
,
k
,
DEG
then collects
DG
i
and
EG
j
, as well as the corresponding weighted
DW
t
and
EW
t
related to the examination items.
Step 3. Calculate the Impact of Diet and Exercise Guidelines.
Given a diet or ex-
ercise guideline
G
and the corresponding weighted
W
(
PEI
k
,
G
) with regard to a set of
physical examination items {
PEI
1
,
PEI
2,
…,
PEI
y
} for all
k
(1 ≤
k
≤ y).
The impact of
G
with regard to the disease
D
is denoted as
I
(
G
,
D
) and is defined as:
y
k
I
(
G
,
D
) =
∑
1
.
W
(
PEI
,
G
)
*
W
(
D
,
PEI
)
k
k
=
Step 4. Print Guidelines Order by the Impact.
Last, the guidelines are arranged in
descending impact calculated by step 3, and users can request to only print top-k
guidelines or satisfying guidelines on a given impact threshold.
Example 1.
Table 2 and Table 3 show examples of diet guidelines and diseases cor-
responding to physical e
xamina
tion i
tem
s, respectively. The impact of guidelines “No
alcohol (
DG
1
)” with regard to the disease “Cardiovascular Disease (
D
1
)“ is
I
(
DG
1
,
D
1
)=0.2*2.5 + 0.8*5.2 + 0.5*3.7=6.51. In addition, the impact of
DG
2
w.r.t. the (
D
1
)
is 3.34.
Table 2.
Example of exercise guidelines corresponding to physical examination items
Phys. Exam. Items (notation)
Diet Guidelines (notation)
Weighted
No alcohol (
DG
1
)
2.5
Moderate hypoxemia (
PEI
2,2
)
Low-edible oil diets (
DG
2
)
1
No alcohol (
DG
1
)
3.7
Tachycardia (
PEI
1,3
)
Low-edible oil diets (
DG
2
)
1
No alcohol (
DG
1
)
5.2
Stage 2 hypertension (
PEI
3,1
)
Low-edible oil diets (
DG
2
)
3.3
Natural flavors diets (
DG
3
)
1.7
Table 3.
Example of diseases corresponding to physical examination items
Deseases
Phys. Exam. Items (notation)
Weighted
Stage 2 hypertension (
PEI
3,1
)
0.8
Cardiovascular Disease (
D
1
)
Moderate hypoxemia (
PEI
2,2
)
0.2
Tachycardia (
PEI
1,3
)
0.5
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