The phrase "an efficient method to reduce the" is correct and usable in written English.
You can use it when discussing strategies or techniques aimed at decreasing something, such as costs, waste, or time.
Example: "The research team developed an efficient method to reduce the energy consumption of the building."
Alternatives: "a effective way to decrease the" or "a productive approach to minimize the".
The combined use of cellulose nanoparticles and olive oil proved to be an efficient method to reduce the inherently high water vapor permeability of plasticized chitosan films, improving at the same time their tensile behavior.
The first one is an efficient method to reduce the noise in the medium and large-dimensional scales, while the second one is a technique developed to remove noise in the green channel of coloured deep-sky astrophotos.
An efficient method to reduce the uncertainty is to exploit the mobility characteristics of the MANET.
An efficient method to reduce the uncertainty is to exploit the mobility characteristics of MANET that accelerates the trust convergence.
An efficient method to reduce the recursive level deep in the archetype hierarchy tree when querying the leaf archetype is to store the most frequently queried data items of the ancestors in the descendants.
The reuse of mine wastes is an efficient method to reduce disadvantages of the mining operation.
Therefore, increasing educational efforts to lower the rate of cancer incidence could be an efficient method to reduce such an overwhelming healthcare burden.
Congestion pricing has been regarded as an efficient method to reduce network-wide travel cost.
In traffic control, for example, congestion pricing is an efficient method to reduce congestion by surcharging users in periods of peak demand.
Using efficient methods to reduce the computation time of input, comparison, sampling, and a variety of reduction methods will play an important role in big data analytics.
On Tuesday, Mr. Gore proposed a 10-year, $75 billion package of tax breaks and other measures to motivate utility companies and manufacturers to use more energy-efficient methods to reduce the country's dependence on oil.
