Abstract: A creation method that is executed by a computer, the creation method includes acquiring scores representing accuracy of classification of a machine learning model that classifies input data into classes; acquiring a difference in the scores between a first class that has a highest score and a second class that has a next highest score after the first class; and generating a first detection model that determines the classification is undecided when the difference is equal to or less than a first threshold value.

Abstract: A disclosed policy introduced effect prediction apparatus includes a memory storing a set of instructions of a policy introduced effect prediction program, and processors programed to execute the instructions to perform a policy introduced effect prediction process. The policy introduced effect prediction process includes calculating at least one calculation model based on first difference data calculated based on time series data of an objective variable and second difference data calculated based on time series data of an explanatory variable, calculating a difference amount of the objective variable by inputting a difference amount of the explanatory variable for introducing a policy into the calculated calculation model, and calculating a predicted value of the objective variable in response to introduction of the policy by adding the calculated difference amount of the objective variable to a predicted value of the objective variable in the absence of the introduction of the policy.

Abstract: An information presentation device includes a processor that executes a procedure. The procedure includes: for respective decision making entities, calculating assessment indexes of a plurality of respective assessment criteria, based on characteristic information representing a characteristic of each of the decision making entities; selecting, from the plurality of decision making entities, at least one decision making entity having a characteristic similar to that of an information presentation target decision making entity that is a target of information presentation, based on an assessment index calculated for each of the decision making entities; and acquiring and presenting information related to decision making by the selected decision making entity from a storage section storing information related to decision making for each of the plurality of decision making entities.

Abstract: An information processing method includes calculating, for each reference target among reference targets to which a measure has been applied, a difference between a value of an index of the reference target linked to predetermined variables, and a value of the index of the reference target obtained under a virtual scenario in which the measure is not applied to the reference target, as a first index value difference, calculating a relation expression that links the first index value difference to the predetermined variables, and calculating, by using the predetermined variables of a target and the relation expression, a difference between a value of the index of the target obtained under a virtual scenario in which the measure is applied to the target and a value of the index of the target obtained when the measure is not applied to the target, as a second index value difference.

Abstract: In a population projection apparatus, a memory stores past values of population changing components in each year within a first period. A computing circuit derives relational equations each representing a relationship between a change rate indicating a proportion relative to a population and an elapsed time period from the start of the first period, with respect to the population changing components. Next, the computing circuit calculates, using the relational equations, change rates of the population changing components in each year within a second period that starts from the year after the first period, and changes a part of the calculated change rates to change rates input as a scenario. Thereafter, the computing circuit calculates a population of each year within the second period on the basis of the population of the previous year and the change rates of the population changing components of that year.

Abstract: A prediction apparatus includes one or more memories and one or more processors configured to select each of specific periods for each of a plurality of explanatory variables on the basis of a correlation between actual values of each of the plurality of explanatory variables aggregated for each period and actual values of an objective variable aggregated for each period, the plurality of explanatory variables relating to the objective variable, determine a plurality of regression coefficients of a regression equation relating to the objective variable on the basis of each specific actual value of the plurality of explanatory variables in each of the selected specific periods, perform calculation of a predicted value of the objective variable by using the regression equation having the determined plurality of regression coefficients, and output the calculated predicted value.

Abstract: A disclosed policy introduced effect prediction apparatus includes a memory storing a set of instructions of a policy introduced effect prediction program, and processors programed to execute the instructions to perform a policy introduced effect prediction process. The policy introduced effect prediction process includes calculating at least one calculation model based on first difference data calculated based on time series data of an objective variable and second difference data calculated based on time series data of an explanatory variable, calculating a difference amount of the objective variable by inputting a difference amount of the explanatory variable for introducing a policy into the calculated calculation model, and calculating a predicted value of the objective variable in response to introduction of the policy by adding the calculated difference amount of the objective variable to a predicted value of the objective variable in the absence of the introduction of the policy.

Abstract: An estimating apparatus calculates a correlation coefficient of first time-series data with respect to second time-series data on a basis of the first time-series data of a plurality of first indices and the second time-series data of a second index. The estimating apparatus estimates an index having a causality relationship with the second index from among the plurality of first indices, on a basis of characteristics of time-series fluctuations of the correlation coefficients and values of the correlation coefficients.

Abstract: In a population projection apparatus, a memory stores past values of population changing components in each year within a first period. A computing circuit derives relational equations each representing a relationship between a change rate indicating a proportion relative to a population and an elapsed time period from the start of the first period, with respect to the population changing components. Next, the computing circuit calculates, using the relational equations, change rates of the population changing components in each year within a second period that starts from the year after the first period, and changes a part of the calculated change rates to change rates input as a scenario. Thereafter, the computing circuit calculates a population of each year within the second period on the basis of the population of the previous year and the change rates of the population changing components of that year.

Abstract: An information presentation device includes a processor that executes a procedure. The procedure includes: for respective decision making entities, calculating assessment indexes of a plurality of respective assessment criteria, based on characteristic information representing a characteristic of each of the decision making entities; selecting, from the plurality of decision making entities, at least one decision making entity having a characteristic similar to that of an information presentation target decision making entity that is a target of information presentation, based on an assessment index calculated for each of the decision making entities; and acquiring and presenting information related to decision making by the selected decision making entity from a storage section storing information related to decision making for each of the plurality of decision making entities.

Abstract: An information processing method includes, calculating, by a processor, a cost of a first process on the basis of a number of processes performed by the first process and a cost database that stores therein a unit price of cost factors; calculating, by a processor, a cost of a second process on the basis of the number of processes performed by, instead of tile first process, the second process that is performed by an ICT apparatus and the cost database; and calculating, by a processor, an introduction level of the second process needed for cost reduction on the basis of the cost of the first process and the cost of the second process.