Growth estimation device, growth estimation method, and growth estimation program

Abstract

We provide a cultivation estimation device that calculates parameters that significantly affect plant growth using limited historical data. [Solution] A growth estimation device 1 for estimating factors that have a significant impact on plant growth, comprising: a first calculation unit 24 that calculates a first predicted value P1 regarding the growth state of a plant based on calculation variables representing multiple types of factors; a second calculation unit 25 that calculates a second predicted value P2 regarding the growth state of a plant based on the same calculation variables; a coefficient calculation unit 26 that calculates a plurality of first coefficients αi corresponding to each of the plurality of calculation variables in the first model and a plurality of second coefficients βi corresponding to each of the plurality of calculation variables in the second model, so that the first predicted value P1 and the second predicted value P2 are the same or approximate within a predetermined range; and an important element extraction unit 27 in the coefficient calculation unit 26 that extracts important factors that have a significant impact on plant growth according to the change in predicted values ​​P1 and P2 with respect to the change in the first coefficient (αi) and / or second coefficient (βi).

Claims

1. A growth estimation device that estimates factors that have a significant impact on plant growth, A first calculation unit using a first model that calculates a first predicted value regarding the growth state of a plant based on calculation variables for each element representing multiple types of the aforementioned elements, A second calculation unit using a second model that calculates a second predicted value different from the first model regarding the growth state of plants, based on the same calculation variables as the aforementioned calculation variables, A coefficient calculation unit calculates a plurality of first coefficients corresponding to a plurality of computational variables in the first model and a plurality of second coefficients corresponding to a plurality of computational variables in the second model, such that the first predicted value and the second predicted value are the same or approximate within a predetermined range. The coefficient calculation unit includes an important element extraction unit that extracts important elements that have a significant impact on plant growth from the elements represented by the calculation variables corresponding to each of the first and / or second coefficients, in accordance with the change in the predicted value with respect to the change in the first and / or second coefficients. A growth estimation device characterized by comprising the following features.

2. In the growth estimation device according to claim 1, The aforementioned important element extraction unit, The growth estimation device is characterized in that, in the process of the coefficient calculation unit calculating the first coefficient and the second coefficient, it extracts the important elements according to the amount of change in the difference between the first predicted value and the second predicted value with respect to the amount of change in each of the first coefficient or the second coefficient.

3. In the growth estimation device according to claim 1 or 2, A growth estimation device characterized in that the first model is a linear regression model and the second model is a nonlinear regression model.

4. In the growth estimation device according to claim 3, In the process of calculating the first and second coefficients, the coefficient calculation unit calculates the similarity / dissimilarity between the graph image obtained by the first calculation unit and the graph image obtained by the second calculation unit using image analysis, and adjusts the first and / or second coefficients so that the respective graphs are similar. A growth estimation device characterized by calculating [a certain value].

5. A cultivation estimation method for estimating factors that have a significant impact on plant growth, A first calculation step using a first model that calculates a first predicted value regarding the growth state of a plant based on computational variables for each element representing multiple types of the aforementioned elements, A second calculation step using a second model that calculates a second predicted value different from the first model regarding the growth state of plants, based on the same calculation variables as the aforementioned calculation variables, A coefficient calculation step of calculating a plurality of first coefficients corresponding to a plurality of computational variables in the first model and a plurality of second coefficients corresponding to a plurality of computational variables in the second model, such that the first predicted value and the second predicted value are the same or approximate within a predetermined range, In the coefficient calculation step, the important element extraction step extracts the elements represented by the calculation variables corresponding to the first coefficient and / or second coefficient whose relative change amount is greater than or equal to a predetermined value as important elements that have a significant influence on plant growth. A breeding estimation method characterized by including the following.

6. A cultivation estimation program that estimates the factors that have a significant impact on plant growth, A first calculation means using a first model that calculates a first predicted value regarding the growth state of a plant based on calculation variables for each element representing multiple types of the aforementioned elements, A second calculation means using a second model that calculates a second predicted value different from the first model regarding the growth state of plants, based on the same calculation variables as the aforementioned calculation variables. A coefficient calculation means for calculating a plurality of first coefficients corresponding to a plurality of computational variables in the first model and a plurality of second coefficients corresponding to a plurality of computational variables in the second model, such that the first predicted value and the second predicted value are the same or approximate within a predetermined range. In the coefficient calculation means, an important element extraction means extracts the elements represented by the calculation variables corresponding to the first coefficient and / or second coefficient whose relative change amount is greater than or equal to a predetermined value as important elements that have a significant influence on plant growth. A breeding estimation program characterized by making a computer function as such.

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