Abstract: To propose an information processing device and method capable of planning an effective scheme, such as distributing information appropriate to a user. Time-series positional data composed of time-series positional information of a mobile communication body are collected, and a regular behavior of a user of the mobile communication body is estimated on the basis of the collected time-series positional data of the mobile communication body.

Abstract: To propose an information processing device and method capable of planning an effective scheme, such as distributing information appropriate to a user. Time-series positional data composed of time-series positional information of a mobile communication body are collected, and a regular behavior of a user of the mobile communication body is estimated on the basis of the collected time-series positional data of the mobile communication body.

Abstract: In an Internet roaming service, an amount of user information transferred between an authentication server of an uncontracted company which a user does not have a contract with and an authentication server of a contracted company which the user has a contract with is reduced, thereby a load applied on a backbone is reduced. When a user makes connection to the uncontracted company, the authentication server of the uncontracted company registers the user information of the user with a user information table out of the user information received from the user and the information contained in an authentication response received from the contracted company. When the user makes a connection request again to the access server of the uncontracted company, the authentication server of the uncontracted company performs authentication for the uncontracted user by using the information registered with the user information table of its own server.