A Multidimensional Data Utility Evaluation and Pricing Scheme in the Big Data Market

Table 1

List of commonly used symbols.

Symbol	Definition
	Dataset
	Data size
	Data nonnoise ratio
	Data class-balanced ratio
	Data utility
	Data service subscription price per unit of data utility
	Data price per unit of data utility
	Accuracy function for data size
	Accuracy function for data nonnoise ratio
	Accuracy function for data class-balanced ratio
	Data utility evaluation function
	Profit function of the data provider
	Profit function of the service provider
	Reward function of the service user
	Profit function of the service user
	Cost per unit of data utility