hw4.py 文件源码

python
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项目:caltech-machine-learning 作者: zhiyanfoo 项目源码 文件源码
def error_bound(n):
    e = Symbol('e')
    y = Symbol('y')
    growth_function_bound = generate_growth_function_bound(50)
    a = original_vc_bound(n, 0.05, growth_function_bound)
    b = nsolve(Eq(rademacher_penalty_bound(n, 0.05, growth_function_bound), y), 1)
    c = nsolve(Eq(parrondo_van_den_broek_right(e, n, 0.05, growth_function_bound), e), 1)
    d = nsolve(Eq(devroye(e, n, 0.05, growth_function_bound), e), 1)
    return a, b, c, d


# def test_three():
#     e = Symbol('e')
#     y = Symbol('y')
#     n = Symbol('n')
#     growth_function_bound = generate_growth_function_bound(50)
#     a = original_vc_bound(5, 0.05, growth_function_bound)
#     b = nsolve(Eq(rademacher_penalty_bound(5, 0.05, growth_function_bound), y), 5)
#     c = nsolve(Eq(parrondo_van_den_broek_right(e, 5, 0.05, growth_function_bound), e), 1)
#     d = nsolve(Eq(devroye(e, 5, 0.05, growth_function_bound), e), 1)
#     return a, b, c, d
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