Figure 1. The workflow of the framework. (IMAGE)
Caption
A, Collection of the DNA sequences obtained from high-throughput synthesis. The sequences were classified into easy-to-synthesize (blue) or difficult-to-synthesize (red). B, Graphical representations of DNA sequences: repeat, GC content, information entropy and other types of features. Key features were identified from these sequence features by machine learning methods. C, The XGBoost algorithm utilized to build the classification model and calculate the S-index. D, Methods used to interpret the model. The feature contributions were quantified according to the global importance scores and local SHAP explanations. e, Application of the S-index on a specific chromosome. The heatmap indicates the synthesis difficulties for the different fragments, which range from difficult (red) to easy (blue). The white sequences indicate the unanalyzed chromosome sequence.
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