Down's syndrome screening method based on isolation forest algorithm and voting mechanism
A technology of Down syndrome and voting mechanism, applied in computer components, computer-aided medical procedures, computing, etc., can solve problems such as methods without improved prenatal diagnosis system
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[0093] In conjunction with the accompanying drawings of the description, the specific embodiments of the present invention are as follows:
[0094] refer to figure 1 , the Down syndrome screening method based on the isolation forest algorithm and voting mechanism mainly includes 7 steps:
[0095] Step 1: Data preprocessing:
[0096] The data used in this example is provided by the Reproductive Center of the First Affiliated Hospital of Jilin University. The content of the data is the prenatal screening results of 100,138 pregnant women in the second trimester, with a total of 58 fields, among which may be related to Down syndrome There are 10 feature fields. Use the method of directional search to select features from the data provided by the hospital, and obtain the feature vector u(u 1 , u 2 , u 3 , u 4 , u 5 , u 6 , u 7 ); as the data in the hospital are mostly entered manually, and the cooperation of pregnant women and their families is different, some characteris...
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