Support vector regression based color image restoration in YUV color space

A support vector regression(SVR) based color image restoration algorithm is proposed.The test color images are firstly mapped into the YUV color space,and then SVR is applied to build up a theoretical model between the degraded images and the original one.Performance comparisons of the proposed algorithm versus traditional filtering algorithms are given.Experimental results show that the proposed algorithm has better performance than traditional filtering algorithms and has less computation time than iterat...     

基于环境承载力的隧道工程环境影响评价体系及应用

为了将隧道工程环境影响控制在区域环境所能承载的范围之内,考虑适应性、可操作性和推广性等原则,提出基于环境承载力构建隧道工程环境影响评价指标体系。支持向量回归机(Support vector Regression, SVR)与传统评价方法相比减少了指标体系赋权过程,能避免人为因素或指标数据的干扰,提高评价体系的通用性。利用SVR建立的隧道工程环境影响评价模型,并结合交叉验证法对SVR模型参数进行优化选择,解决SVR模型在参数选择上的盲目性。以兰渝铁路全线中段的西秦岭隧道为例进行模型运算。结果表明该方法符合实际,适应性及可操作性强,能够为隧址区生态环境的修复工作提供科学依据。     

智能船舶动力系统设备的自适应阈值方法

[目的]针对智能船舶动力系统设备的状态监控报警不及时、阈值带宽过大、状态评估参数不准确等问题,提出自适应阈值的确定方法,用以对动力系统设备进行监控报警和状态评估.[方法]首先,采用模拟退火算法优化回归支持向量机(SVR)预测模型,对动力系统设备的常规状态特征参数进行建模;然后,对建模残差进行正态转化,并结合滑动时间窗来...