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Gray and green eye colors are the rarest in the world. Eye color is determined by the amount of melanin in the iris, with more melanin making eyes darker. A genetic mutation 10,000 years ago caused ...
Eye color can be changed temporarily with cosmetic options like colored contacts or makeup, and permanently through surgical procedures. Surgical eye color changes come with risks like infection, ...
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面向概念漂移的动态自组织映射(SOM)及金融风险预警效能评估
金融数据分析面临实时处理、高频采集和非结构化特性的多重挑战。传统的使用自组织映射(SOM)进行异常检测存在几个关键性局限: 概念漂移现象:随着宏观经济环境变化导致的数据分布转变,模型预测结果往往迅速过时。
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