IEEE Consumer Electronics Magazine - March/April 2023 - 103

where wi represents the weight of the evaluation
index i, ei represents the evaluation score of the
index, and ui represents its comprehensive evaluation
score.
Calculate the Index Weight of the Logistics
Service Capability Evaluation Matrix
In the evaluation matrix, aij represents the
judgment value after comparing the importance
of index ai to index aj, uirepresents the product
of each row element of the importance evaluation
matrix, and vi represents the value of the
square root of each element in U according to
the matrix order
ui ¼
¼
Yn
p
ffiffi
½
j¼1 aij;i ¼ 1; ... ; 4;vi ¼
.Xn
4ui;wi ¼ vi
i¼1
SERVICE CAPABILITY EVALUATION
EXPERIMENT OF SHIPPING
LOGISTICS ENTERPRISES
Experimental Design
The experiment is mainly divided into the following
steps. First, query data to understand the
current development of maritime logistics. Second,
establish an evaluation index system for
maritime logistics service capabilities through literature
research and the actual situation of maritime
logistics. Third, build a hierarchical analysis
and evaluationmodel for shipping logistics service
capabilities and calculate the weights and scores
of indicators at all levels. Fourth, verify the scientific
and accuracy of this model by evaluating the
logistics service capabilities of important Chinese
shipping companies.
Game Model Analysis of Logistics Service
Ability
Thelogistics serviceincomeofshipping
companies can be calculated by the following
formula:
Uðti;miÞ¼ P
t1
m
ðVhPhÞþ P
þðVlPlÞ
where mi represents the willingness to cooperate
in logistics, t1 and t2 represent strong and
weak service capabilities, respectively, Pl and Ph
represent the low-price and high-price pricing of
March/April 2023
t2
m
ðVlPhÞ
(4)
vi:
p
ffiffi
½
nui
(3)
TABLE 1. Fleet status of the top 10 countries (regions)
with fleet size.
Rank
1
2
3
4
5
6
7
8
9
10
Nation
America
China
Japan
Germany
South Korea
Norway
Britain
France
Russia
Netherlands
Total fleet
(millions of
deadweight
tons)
283.3
243.9
239.4
108.3
103.3
98.7
84.7
76.4
60.9
55.1
Proportion
of the
world fleet
18.9%
16.3%
16.0%
7.2%
6.9%
6.6%
5.6%
5.1%
4.1%
3.7%
the logistics subcontractor's service capabilities,
respectively, Vl and Vh represent the resulting
low and high returns of the subcontractor as
a maritime logistics company. Among them,
logistics service has the characteristics of intangibility,
nonstorage, difference, inseparability,
and subordination.
DISCUSSION ON SERVICE
CAPABILITY EVALUATION OF
SHIPPING LOGISTICS ENTERPRISES
Statistical Analysis of Marine Logistics
Throughput
Since the reform and opening up, China's
total foreign trade imports and exports have
developed rapidly. The gross national product
has grown rapidly from 168.36 billion U.S. dollars
in 1981 to 15.88 trillion U.S. dollars in 2020. The
following mainly analyzes China's maritime logistics
development from the aspects of my
country's maritime logistics capacity, international
competition environment, and maritime
logistics enterprise structure and business performance.
status quo. By 2020, China's shipping
strength had increased significantly. Table 1
shows the fleet situation of the top ten countries
with fleet size. It can be seen from the table that
103
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