针对网络信息过滤系统的过载问题,通过牺牲少量准确率和召回率来提高系统检测能力,并使用采样和规则泛化等近似处理技术保持系统在过载情况下的总体过滤能力。实验结果表明,在准确率或召回率仅降低10%~15%的情况下,能使系统可承受负载提高3倍,性能提升效果显著。关键词:信息过滤;过载处理;采样;泛化规则
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