다변량 데이터와 순환 신경망을 이용한 젖소의 유방염 진단예측 방법
Method for predicting the diagnosis of mastitis in cows using multivariate data and Recurrent Neural Network
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초록
젖소에 있어 유방염은 농가의 낙농 생산성을 저해하는 주된 요인이며 이를 해결하기 위해 지난동안 폭넓은 연구가 이루어졌다. 하지만 유방염에 대한 연구는 사후 진단에 국한되어왔으며 이마저도 단일 센서를 활용하는 것이 주류이다. 본 연구에서는 생체 데이터와 환경 데이터를 이용하여 다음 날의 유방염 발병여부를예측하는 모델을 개발하였다. 데이터는 충청남도 농가에 설치된 착유기와 센서들로부터 수집되었으며 3주간의 데이터를 다변량 데이터로 구성하였다. 유방염 진단예측을 위해 순환 신경망 모델을 사용하였고, 그 결과유방염을 82.9%의 정확도로 예측하였다. 데이터 수집 기간을 다양하게 하여 예측 성능을 비교하였고 여러 모델과 성능을 비교하여 모델의 우수성을 확인하였다.
Abstract
Mastitis in cows is a major factor that hinders dairy productivity of farms, and many attempts have been made to solve it. However, research on mastitis has been limited to diagnosis rather than prediction, and even this is mostly using a single sensor. In this study, a predictive model was developed using multivariate data including biometric data and environmental data. The data used for the analysis were collected from robot milking machines and sensors installed in farmhouses in Chungcheongnam-do, South Korea. The recurrent neural network model using three weeks of data predicts whether or not mastitis is diagnosed the next day. As a result, mastitis was predicted with an accuracy of 82.9%. The superiority of the model was confirmed by comparing the performance of various data collection periods and various models
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