A new and exact calculation method for the mutual impedance matrix of receiving arrays is proposed. The mutual impedance matrix is derived from electromagnetic boundary conditions and can be used to relate the couplin...A new and exact calculation method for the mutual impedance matrix of receiving arrays is proposed. The mutual impedance matrix is derived from electromagnetic boundary conditions and can be used to relate the coupling free open-circuit voltages, instead of the conventional ones, to the measured voltages. A remarkable improvement on compensation for the coupling effects is shown in the direction finding applications, while a simple relationship between measured terminal voltages and the coupling free voltages is remained.展开更多
针对单层关联规则在精神障碍患者药品不良反应(Adverse Drug Reaction,ADR)风险检测与预警中存在的不足,提出一种基于多层关联规则和概念层次树的ADR风险检测与预警系统框架。该系统结合精神障碍患者ADR报告实际数据,通过领域知识构建...针对单层关联规则在精神障碍患者药品不良反应(Adverse Drug Reaction,ADR)风险检测与预警中存在的不足,提出一种基于多层关联规则和概念层次树的ADR风险检测与预警系统框架。该系统结合精神障碍患者ADR报告实际数据,通过领域知识构建概念层次树,并采用多层关联规则挖掘方法找出ADR临床症状与不同相关因素(用药人群、用药情况等)组合之间较高概念层次的强关联规则。结果表明,与单层关联规则相比,多层关联规则能够为ADR风险检测与预警提供更好的临床用药辅助决策。展开更多
基金the National High Technology Research and Development Program of China (2002AA123032)
文摘A new and exact calculation method for the mutual impedance matrix of receiving arrays is proposed. The mutual impedance matrix is derived from electromagnetic boundary conditions and can be used to relate the coupling free open-circuit voltages, instead of the conventional ones, to the measured voltages. A remarkable improvement on compensation for the coupling effects is shown in the direction finding applications, while a simple relationship between measured terminal voltages and the coupling free voltages is remained.
文摘针对单层关联规则在精神障碍患者药品不良反应(Adverse Drug Reaction,ADR)风险检测与预警中存在的不足,提出一种基于多层关联规则和概念层次树的ADR风险检测与预警系统框架。该系统结合精神障碍患者ADR报告实际数据,通过领域知识构建概念层次树,并采用多层关联规则挖掘方法找出ADR临床症状与不同相关因素(用药人群、用药情况等)组合之间较高概念层次的强关联规则。结果表明,与单层关联规则相比,多层关联规则能够为ADR风险检测与预警提供更好的临床用药辅助决策。
