Abstract: Disclosed is a method of operating a server for recommending game content based on user information. The method includes extracting user log data including login information, character information, item usage information, billing information, play information, online money acquisition information, and online money usage information of a user from a game database, selecting the user's tendency information from among a plurality of pieces of tendency information on the basis of at least one piece of the user log data, determining recommended character information, recommended content information, or recommended item information on the basis of the user's tendency information, and controlling a user terminal to display the recommended character information, the recommended content information, or the recommended item information.

Abstract: A method of operating a server that standardizes game data of a user to classify a user's game propensity is provided. The method includes determining whether an event occurs within a game while a user is playing the game, calling a data standardization function corresponding to an event when the event occurs within the game, acquiring at least one predetermined parameter in the data standardization function, storing the at least one parameter in a table corresponding to the event, and classifying a user's propensity based on the generated table.

Abstract: Disclosed is an operating method of a server which analyzes a user's psychology to classify the user. The operating method includes receiving a raw database from a server of a game service provider, acquiring setup information of at least one module to acquire reference data corresponding to one of a plurality of models from the raw database, generating reference data from data of users included in the raw database on the basis of at least one module which is set on the basis of the setup information, and acquiring psychological state information of a user to be analyzed on the basis of the reference data.

Abstract: Proposed is a data security maintenance method for data analysis application, including a data selection step of selecting data to be analyzed from a linked database management system (DBMS), a data request step of requesting the data to be analyzed, a data transformation step of transforming the data to be analyzed using a predetermined transformation method, a data analysis step of analyzing the transformed data to be analyzed, an error comparison step of comparing analysis errors for each transformation method, a tradeoff step of determining the extent of analysis accuracy and the extent of data security, and a data provision step of providing the result of analysis of the data to be analyzed.

Abstract: Disclosed is an operating method of a server which analyzes a user's psychology to classify the user. The operating method includes receiving a raw database from a server of a game service provider, acquiring setup information of at least one module to acquire reference data corresponding to one of a plurality of models from the raw database, generating reference data from data of users included in the raw database on the basis of at least one module which is set on the basis of the setup information, and acquiring psychological state information of a user to be analyzed on the basis of the reference data.

Abstract: Disclosed is a method of operating a server for recommending game content based on user information. The method includes extracting user log data including login information, character information, item usage information, billing information, play information, online money acquisition information, and online money usage information of a user from a game database, selecting the user's tendency information from among a plurality of pieces of tendency information on the basis of at least one piece of the user log data, determining recommended character information, recommended content information, or recommended item information on the basis of the user's tendency information, and controlling a user terminal to display the recommended character information, the recommended content information, or the recommended item information.