The phrase "approximations of cost" is correct and usable in written English.
It can be used when discussing estimates or rough calculations related to expenses or pricing.
Example: "Before we proceed with the project, we need to gather some approximations of cost to ensure we stay within budget."
Alternatives: "cost estimates" or "cost approximations".
And this algorithm is an optimal control algorithm based on policy iteration (PI), and it can obtain the suitable approximations of cost function and the optimized control policy.
In spite of the limitations inherent to accounting-based approximations of cost of equity capital, Daske et al. (2010) support this measurement design, arguing that such approximations for cost of equity capital are robust and even more reliable than models based on abnormal earnings growth.
We noted a remarkable scarcity of empirical data on appropriate approximations of cost functions in exposure assessment, as well as on the sizes of costs pertaining to different measurement stages, for instance subjects and occasions within subjects.
The reverse of approximation is separation.
First, the lower and upper approximations of cost-sensitive multi-granulation are constructed, and it can be verified that in multi-granulation framework, the information granules and approximations are sensitive to decision costs and test costs, respectively.
Approximations of cost-to-go functions[13, 14] are generally based on oversimplified models and thus cannot be accurately used in general practical networks.
Gamma regressions were used to compare outcomes because gamma distribution is suggested by many as a close approximation of cost data.
Relevant to the approach proposed herein, Mahadevan et al. in[17] proposed the use of DW[18] as a projection basis for the sparse approximation of cost-to-go functions.
In order to achieve efficient traffic engineering, possible approximations of generic cost function and mappings of generalized to particular metrics have been proposed.
Our cost analysis was carried out using a method commonly applied in industrial settings, which guarantees a rigour that reduces approximations of conventional cost calculation methods [30].
The Choice has written before about this tool, but here's a definition for the uninitiated: it is an online device that offers customized approximations of college costs based on standardized inputs − family size and savings, for example.
