The phrase "approaches are complex" is correct and usable in written English.
It can be used when discussing various methods or strategies that involve intricate or multifaceted elements.
Example: "In the field of psychology, it is widely accepted that approaches are complex, requiring a deep understanding of human behavior."
Alternatives: "methods are intricate" or "strategies are multifaceted."
However, such approaches are complex, computationally intensive and time consuming.
As these approaches are complex in view of the requirement of precise measurement and mathematical modeling.
Conventional implementations on this condition, such as one based on hash redistribution, often incur significant network communication, while the duplication-based approaches are complex and inefficient.
However, most of the background-modeling approaches are complex and time consuming for real-time processing [2].
Combination approaches are complex, may involve high program costs, and require substantial global commitments.
However, all these approaches are complex and still present some difficulties.
As indicated by the results of this review, the landscape of innovative MNH approaches is complex and diverse, and knowledge management is a challenge for country MNH programme planners and managers.
In this respect, the good performance of Large-Eddy Simulation has already been established but because the formulation and the use of this turbulence modeling approach are complex, the uncertainty on the results is relatively high.
The professors' approach is complex, but it depends on a simple indicator: the ratio of the number of middle-aged people to the number of young adults in the population.
She warns: "To effect a cultural change in dementia care requires a change of thinking … this approach is complex and intricate, and can change cultural attitudes by regarding the arts as central to everyday life of the care home".
However, such a multispecialty approach is complex to design, and there are no evidence-based templates that describe how multispecialty care should be organized.
