Estimation apparatus, estimation method and program to estimate function parameters and data values
AssigneeNippon Telegraph and Telephone Corporation
InventorsTomoharu Iwata, Hitoshi Shimizu
Life of this patent
Estimating the term…
Abstract
An estimation apparatus includes: input means for inputting aggregated data in which a plurality of data are aggregated, and feature data representing a feature of the aggregated data; determination means for determining a parameter of a model of the plurality of data before the aggregation of the aggregated data, using a predetermined function and the feature data; and estimation means for estimating a parameter of the function and the plurality of data by optimizing a predetermined objective function, using the aggregated data.
Claims20
An estimation apparatus comprising a processor configured to execute operations comprising:
- receiving aggregated data in which a plurality of data are aggregated, and feature data representing a feature of the aggregated data;
- determining a parameter of a model of the plurality of data before the aggregation of the aggregated data, using a predetermined function and the feature data;
- and
- estimating a parameter of the function and the plurality of data by optimizing a predetermined objective function, using the aggregated data, wherein the objective function is a likelihood indicating a degree of agreement between estimated values of the plurality of data and the parameter of the model, and the aggregated data.
A computer-implemented method for estimating, comprising;
- receiving, aggregated data in which a plurality of data are aggregated and feature data representing a feature of the aggregated data;
- determining a parameter of a model of the plurality of data before the aggregation of the aggregated data, using a predetermined function and the feature data;
- and
- estimating a parameter of the function and the plurality of data by optimizing a predetermined objective function, using the aggregated data, wherein the objective function is a likelihood indicating a degree of agreement between estimated values of the plurality of data and the parameter of the model, and the aggregated data.
A non-transitory computer readable recording medium storing computer-executable program instructions for estimating that when executed by a processor cause a computer system to:
- receive aggregated data in which a plurality of data are aggregated and feature data representing a feature of the aggregated data;
- determine a parameter of a model of the plurality of data before the aggregation of the aggregated data, using a predetermined function and the feature data;
- and
- estimate a parameter of the function and the plurality of data by optimizing a predetermined objective function, using the aggregated data, wherein the objective function is a likelihood indicating a degree of agreement between estimated values of the plurality of data and the parameter of the model, and the aggregated data.
Dependencies are inferred from the claim text.