This section discusses limitations and the future direction of this research.
Once you complete the analysis, you know what your approach can or cannot do for the task. The limitations can be thought of in multiple dimensions:
Technicality: what are the technical challenges for enhancing the performance in terms of accuracy or scalability?
Robustness: how reliable and generalizable are your results?
Applicability: what hinders your approach from being adapted by practical applications?
As the owner of this work, you are responsible for suggesting future research directions to the community. Explain what researchers can do to overcome the limitations.