The phrase "a real world source of" is correct and usable in written English.
It can be used when referring to a tangible or practical origin of something in the real world, often in discussions about data, information, or examples.
Example: "The study provided a real world source of evidence that supports the theory of climate change."
Alternatives: "a practical source of" or "a tangible source of".
Collectively, our results demonstrate that pulmonary exposure to a real-world source of PM induces the recruitment and activation of T cells leading to the induction of the pathophysiological features of asthma.
A stochastic hidden Markov model that is general enough to encompass real world sources of piecewise linear data is used to model the transitions between slope values and the problem of slope estimation is addressed using a Bayesian maximum a posteriori approach.
They first suggest that the incoming information corresponds to something in the sensory world; this often means a physical sound source, but they leave room in their definition for artificial sounds that could conceivably come from a real-world source.
When it was published, I noted that it was more akin to a thought experiment than a roadmap, given that the analysis did not consider real-world sources of friction from economics and politics.
Successively, the best configurations for training and scaling were tested over two real-world sources of bias: the spatial resolution of the facial image to be analyzed; the head pose of the subject in the scene.
We systematically ran the model with many thousands of different combinations of the unknown parameters in order to find the combination which yielded model outcomes most consistent with a real world data source [ 54].
System dynamics (SD) is used to build models of a real world and to study how its (real world's) structure produces dynamic behaviour over time [ 20, 21].
Of course, a real world system would be affected by many more impulsive (and non-impulsive) interference sources.
