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Please predict whether this patent is acceptable.PATENT ABSTRACT: An apparatus, a computer readable medium, and a learning method for learning a model corresponding to time-series input data, including acquiring the time-series input data, which is a time series of input data including a plurality of input values, propagating, to a plurality of nodes in a model, each of a plurality of propagation values obtained by weighting each input value at a plurality of time points before one time point according to passage of time points, in association with the plurality of input values at the one time point, calculating a node value of a first node among the plurality of nodes by using each propagated value propagated to the first node, and updating a weight parameter used to calculate each propagation value propagated to the first node, by using a corresponding input value and a calculated error of the node value at the one time point.