排序方式: 共有69条查询结果,搜索用时 15 毫秒
1.
常林——帕尔菲格随车起重运输车 总被引:2,自引:0,他引:2
随着中国随车起重运输车的快速增长,有关专家预测,起重量在16t以下的汽车起重机将被随车起重机逐渐取代。蓬勃发展的中国经济给起重设备市场带来了巨大的市场潜力,引起了全世界制造商的高度关注。在世界起重技术领域内奥地利帕尔菲格集团,不仅以市场领先者著称,而且以技术领先者的地位领导起重技术的发展潮流。奥地利帕尔菲格起重技术有限公司在世界五大洲建有生产基地,在全球设有一千四百多个服务网点,为保持技术领先者的地位,该集团将每年营业 相似文献
3.
Steganalysis attack is to statistically estimate the embedded watermark in the watermarked multimedia,and the estimated watermark may be destroyed by the attacker.The existing methods of false negative probability,however,do not consider the influence of steganalysis attack.This paper proposed the game theory based false negative probability to estimate the impacts of steganalysis attack,as well as unintentional attack.Specifically,game theory was used to model the collision between the embedment and steganalysis attack,and derive the optimal building embedding/attacking strategy.Such optimal playing strategies devote to calculating the attacker destructed watermark,used for calculation of the game theory based false negative probability.The experimental results show that watermark detection reliability measured using our proposed method,in comparison,can better reflect the real scenario in which the embedded watermark undergoes unintentional attack and the attacker using steganalysis attack.This paper provides a foundation for investigating countermeasures of digital watermarking community against steganalysis attack. 相似文献
4.
5.
6.
集成学习是一种可以有效改善分类系统性能的数据挖掘方法。采用动态分类器集成选择算法对卷烟感官质量进行智能评估。产生包含多个基分类器的分类器池;根据基分类器在被测样本邻域内的表现选择满足要求的分类器;采用被选择的分类器产生最终的预测结果。为了验证该方法的有效性,采用国内某烟草公司提供的卷烟感官评估历史数据集进行了实验比较分析。实验结果表明,与其他方法相比,该方法获得的效果明显改善。 相似文献
8.
9.
10.