He says: "The question of how it will change is still a very active research problem, and we don't have clear-cut answers yet.
This is a known problem, an active research area, and has been addressed in many different venues (see DeLong, 2015) – for example, Karagiannis et al. (2002) in telecommunications research and Wagenmakers et al. (2005; Farrell, Wagenmakers, & Ratcliff, 2006) in response to Gilden (2001) and his study of reaction times.
Object tracking is one of the fundamental problems and an active research area in computer vision during the last decade.
In recent years, generalized semi-infinite programming problems became an active research topic in mathematical programming due to its extensive applications in many fields such as reverse Chebyshev approximate, robust optimization, minimax problems, design centering and disjunctive programming: see [1 3].
The black hole problem is still an active research area.
Dealing with the small sample size problem is currently an active research topic, and has already led to working solutions.
This optimization problem has been an active research area in the machine learning community and various methods have been developed, including interior point methods (Koh et al., 2007), trust region newton methods (Lin et al., 2008) and projected gradient methods (Duchi et al., 2008).
Finding the optimal configuration of these operations is known as MCM problem, which has been an active research topic for almost the last two decades [3 33].
Epidemic outbreak detection is an important problem in public health and the development of reliable methods for outbreak detection remains an active research area.
