Monitoring Big Data Streams Using Data Stream Management Systems: Industrial Needs, Challenges, and Improvements

Table 2

A summary of the challenges that an industrial company may face when implementing the required monitoring systems.

Challenges	Industries	Technical development
Large dimensionality of monitored variables	x
High sampling rates		x
Searching data streams in a resource-constrained environment	x	x
Handling huge amounts of equipment	x	x
Real-time monitoring		x
Expert knowledge is limited-fault patterns not predefined	x
The dynamics of a system cannot be modeled (i.e., complex system)		x
Fault patterns expensive to simulate	x
False alarms	x	x
Addressing concept drift		x
Model parameter estimation		x
Failures may occur suddenly (in short time)	x	x