"reduce the unpredictability" is correct and usable in written English
You can use it to describe a situation where you are trying to make something more reliable by introducing routine and order into it. For example, "We were trying to reduce the unpredictability of our operations by standardizing the process."
An agreement that was signed by the two Koreas in December 2000 and went into effect today aims to reduce the unpredictability of doing business in the North.
I try to best decisions for the team, I analyse what I think the game can be, I try to reduce the unpredictability of every match.
Maryland's public colleges have proposed a way to reduce the unpredictability of tuition increases and prevent last-minute raids on their budgets: The state and colleges would outline financial commitments to one another several years in advance.
Unfortunately, we have to agree with Hannigan and Allen [ 37] that it is "not clear how far the new UK research governance framework will help to reduce the unpredictability of REC decision-making".
They will be combined and automated, reducing the unpredictability of air currents, which can cause giant backdrops just inches apart to collide (it has happened, the Met said) and wreak havoc with stage smoke.
142 Improved balance comes at the cost of reducing the unpredictability of the sequence.
232 Improved balance comes at the cost of reducing the unpredictability of the sequence.
For example, BUN reduces the unpredictability in creatinine more than creatinine does for BUN, relatively speaking.
This will reduce the level of uncertainty and unpredictability regarding the effects of nanoparticles on health and environment.
In selecting information from their environments, cognitive and social systems reduce the complexity (i.e., unpredictability) of the environment.
To reduce this unpredictability, they create stereotypes boosting their behavior -- prediction confidence -- and partially dismissing their fears.
