2 RELATED WORKS
2.1 Data Mining Algorithm
Data mining is the process of discovering useful
patterns in data. The purpose of data mining session
is to determine the trend and pattern of data. Data
mining emphasizes the processing of a large number
of observed databases. It is a frontier discipline
involving database management, artificial
intelligence, machine learning, pattern recognition,
and data visualization. From a statistical point of
view, it can be seen as the automatic exploratory
analysis of a large number of complex data sets
through computers. Data source: it is the foundation
of data warehouse system and the data source of the
whole system. It usually includes internal and
external information of the enterprise. Internal
information includes various business processing
data and various document data stored in RDBMS.
External information includes various laws and
regulations, market information and competitor
information, etc (Liang, 2018).
Data storage and management: it is the core of the
whole data warehouse system. The real key of data
warehouse is data storage and management. The
organization and management mode of data
warehouse determines that it is different from
traditional database, and also determines its
manifestation of external data. To decide what
products and technologies to adopt to establish the
core of data warehouse, we need to analyze the
technical characteristics of data warehouse. The data
of existing business systems are extracted, cleaned
up, effectively integrated, and organized according to
the theme. Data warehouse can be divided into
enterprise level data warehouse and department level
data warehouse (usually called data mart) according
to the coverage of data. Figure 1 below shows the data
mining process.
Figure 1: Data mining process
OLAP server: effectively integrate the data
required for analysis and organize it according to the
multidimensional model, so as to conduct multi angle
and multi-level analysis and find trends. Its specific
implementation can be divided into ROLAP,
MOLAP and HoLap. ROLAP basic data and
aggregate data are stored in RDBMS; MOLAP basic
data and aggregate data are stored in
multidimensional database; HoLap basic data is
stored in RDBMS, and aggregated data is stored in
multidimensional database.
Front end tools: mainly including various report
tools, query tools, data analysis tools, data mining
tools and various application development tools
based on data warehouse or data mart. Among them,
data analysis tools are mainly for OLAP servers,
while report tools and data mining tools are mainly
for data warehouses.
2.2 Control Engineering Technology
As for master control engineering, first of all, we need
to mention the basic theory of control engineering
system control process, that is, control engineering
cybernetics. Its main research contents are
information, state and control engineering topology.
Usually, this theory is the reference basis for building
master control engineering. The main function of the
master control project is to input control commands
and parameters, and display the operation and
feedback information of the controlled equipment. In
addition, from the perspective of the basic framework
of the master control of control engineering, it is
divided into three control structures: centralized,
decentralized and hierarchical. Each control structure
has the advantages and disadvantages of dichotomy.
Second, the centralized control structure is relatively
simple in structure and control, which makes the
management and network construction easier, and the
delay time is small, reducing the error in the
transmission process. However, the installation
workload is large and the cost is high, which is not
conducive to resource sharing. The advantage of
decentralized control structure is its high reliability.
Even if the controller fails, the control engineering
system will not be completely paralyzed. Therefore,
when the system scale meta method is centralized
control, the communication is more convenient, or the
user requires the use of decentralized control
structure, the decentralized control structure can be
used. However, the decentralized control structure
also has some defects. If the state of the control
engineering system cannot be controlled and
observed, the hierarchical control structure combines