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Python GaussianKernel.set_weights方法代码示例

本文整理汇总了Python中shogun.Kernel.GaussianKernel.set_weights方法的典型用法代码示例。如果您正苦于以下问题:Python GaussianKernel.set_weights方法的具体用法?Python GaussianKernel.set_weights怎么用?Python GaussianKernel.set_weights使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在shogun.Kernel.GaussianKernel的用法示例。


在下文中一共展示了GaussianKernel.set_weights方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: create_kernel

# 需要导入模块: from shogun.Kernel import GaussianKernel [as 别名]
# 或者: from shogun.Kernel.GaussianKernel import set_weights [as 别名]
def create_kernel(kname,kparam,feats_train):
    """Call the corresponding constructor for the kernel"""

    if kname == 'gauss':
        kernel = GaussianKernel(feats_train, feats_train, kparam['width'])
    elif kname == 'linear':
        kernel = LinearKernel(feats_train, feats_train)
        kernel.set_normalizer(AvgDiagKernelNormalizer(kparam['scale']))
    elif kname == 'poly':
        kernel = PolyKernel(feats_train, feats_train, kparam['degree'], kparam['inhomogene'], kparam['normal'])
    elif kname == 'wd':
        kernel=WeightedDegreePositionStringKernel(feats_train, feats_train, kparam['degree'])
        kernel.set_normalizer(AvgDiagKernelNormalizer(float(kparam['seqlength'])))
        kernel.set_shifts(kparam['shift']*numpy.ones(kparam['seqlength'],dtype=numpy.int32))
        #kernel=WeightedDegreeStringKernel(feats_train, feats_train, kparam['degree'])
    elif kname == 'spec':
        kernel = CommUlongStringKernel(feats_train, feats_train)
    elif kname == 'cumspec':
        kernel = WeightedCommWordStringKernel(feats_train, feats_train)
        kernel.set_weights(numpy.ones(kparam['degree']))
    elif kname == 'spec2':
        kernel = CombinedKernel()
        k0 = CommWordStringKernel(feats_train['f0'], feats_train['f0'])
        k0.io.disable_progress()
        kernel.append_kernel(k0)
        k1 = CommWordStringKernel(feats_train['f1'], feats_train['f1'])
        k1.io.disable_progress()
        kernel.append_kernel(k1)
    elif kname == 'cumspec2':
        kernel = CombinedKernel()
        k0 = WeightedCommWordStringKernel(feats_train['f0'], feats_train['f0'])
        k0.set_weights(numpy.ones(kparam['degree']))
        k0.io.disable_progress()
        kernel.append_kernel(k0)
        k1 = WeightedCommWordStringKernel(feats_train['f1'], feats_train['f1'])
        k1.set_weights(numpy.ones(kparam['degree']))
        k1.io.disable_progress()
        kernel.append_kernel(k1)
    elif kname == 'localalign':
        kernel = LocalAlignmentStringKernel(feats_train, feats_train)
    elif kname == 'localimprove':
        kernel = LocalityImprovedStringKernel(feats_train, feats_train, kparam['length'],\
                                              kparam['indeg'], kparam['outdeg'])
    else:
        print 'Unknown kernel %s' % kname

    kernel.set_cache_size(32) 
    return kernel
开发者ID:axitkhurana,项目名称:shogun,代码行数:50,代码来源:experiment.py


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