Abstract: A path specific traffic volume estimation unit (130) estimates a path specific traffic volume corresponding to a traffic volume of observation objects at each time point at each of path candidates on the basis of observation value data that represents the number of the observation objects at each time point at each of a plurality of observation spots, observation spot specific reliability data that represents a reliability of the observation value data at each time point at each of the plurality of observation spots, and a path candidate list that represents a set of the path candidates through which the observation objects move.

Abstract: An object is to estimate parameters of a model including censored data at high speed, with a saved memory, and with the parameters having temporal continuity. A responsibility update unit 19 updates a responsibility based on data of a newly observed sample. Then, a moment update unit 20 updates a moment based on the data of the newly observed sample. Then, a statistic update unit 21 updates each statistic based on the responsibility or the moment. Then, a parameter update unit 22 updates a parameter related to a component based on the statistics.

Abstract: A token type content providing system is provided, in which the system includes a portable user terminal and a linkup server, the portable user terminal includes: a part for obtaining a token from an information notification medium; a part for sending the token to a linkup server; and a part for receiving content information; the linkup server includes: a part for determining one or more content identifier corresponding to the token by using a token table database; a part for obtaining one or more items of content information corresponding to the one or more content identifier; a part for selecting one or more items of content information by referring to the attribute information, and sending a part or the whole of selected content information to the portable user terminal.

Abstract: A token type content providing system is provided, in which the system includes a portable user terminal and a linkup server, the portable user terminal includes: a part for obtaining a token from an information notification medium; a part for sending the token to a linkup server; and a part for receiving content information; the linkup server includes: a part for determining one or more content identifier corresponding to the token by using a token table database; a part for obtaining one or more items of content information corresponding to the one or more content identifier; a part for selecting one or more items of content information by referring to the attribute information, and sending a part or the whole of selected content information to the portable user terminal.

Abstract: A scheme for automatic data conversion definition generation based on data feature such as a decision tree or a statistical feature, so as to enable a quick data analysis in a visual multidimensional data analysis tool.