简书章节地址：
- 数据获取-ABU量化系统
- 相关指标-ABU量化系统
- 基础交易-ABU量化系统
- 度量工具-ABU量化系统
- 理论基础-ABU量化系统.
- 机器学习-ABU量化系统
- 解决方案A-ABU量化系统
- 解决方案B-ABU量化系统
- 解决方案C-ABU量化系统
- 解决方案D-ABU量化系统
上一章使用 深度学习卷积神经网络对印钞机之路进行了可行性分析，主要是基于tensorflow的alex_net模型和基于caffe使用google_lenet进行训练学习, 这一章我们将从另一个方向发展印钞机之路，这条路是我最推荐的做法，因为使用深度学习特别是卷积神经网络，它最后学习到的特征权重等等对我们都是一个黑盒，我们并不知道它到底学习到了什么特征，这些特征有什么特点，为什么它能指导我们的交易，而且训练时间与判定效率都不高，对密集型交易系不适用, 下面我们开始！
这章开始的主角就是gmm-hmm了，它的最普遍的用途是在语音识别上，我们这章使用它做股票模式识别
# 首先加载之前因子运行好的训练集与测试集数据
fn = ZEnv.g_project_root + '/data/cache/golden_n6_train_abu'
key = 'golden_n6_train_abu'
orders_pd_train = ZCommonUtil.load_hdf5(fn, key)
print orders_pd_train.shape
fn = ZEnv.g_project_root + '/data/cache/golden_n6_test_abu'
key = 'golden_n6_test_abu'
orders_pd_test = ZCommonUtil.load_hdf5(fn, key)
print orders_pd_test.shape
# out
(42538, 31)
(4837, 31)
# 对训练集的度量
train_ump = UmpMainClass(orders_pd_train, MlFiterGoldenPdClass)
train_ump.show_general()
# out
all fit order = (40351, 31)
win rate = 0.500681519665
profit_cg.sum() = 249.617989344
win mean = 0.0745965275755 loss_mean = -0.0625759181825
- 使用gmm从一定范围分类默认40-85需要根据样本数量进行调整，寻找compoent中大于loss阀值的分类分类记做ind
- 返回df index＝compoent_ind 一个compoent中可能有多个ind
说的简单点就是使用gmm对数据聚类，比如你对所有数据聚类聚了20个分类，然后发现第19个分类里面70％以上都是赔钱的交易，那我就提取这个分类的的这个类别，作为之后的判定器的组成部份，如果新的交易被判定为这类那我们就对这个交易进行拦截，
实际运用会稍微复杂一下，下面会一一说明对马尔科夫链及隐形马尔科夫链的理解推荐阅读‘数学之美’这书写的真不错，很多知识点比如熵的概念等我从这本书上看到的解释最令我信服而且通俗
如下所示，默认分类从40-85，选择阀值大与65%的失败类别， 各个轴像代表
-
lcs: compoent_ind 中样本总数
-
lrs: compoent_ind 中样本loss比例
-
lps: compoent_ind 中样本profit sum
-
lms: compoent_ind 中样本profit mean
train_ump.gmm_component_filter()
由于简书不支持html表格，所以完整表格请查询git上ipython notebook完整版本
train_ump.cprs.loc[train_ump.cprs.lrs.argmax()]
# out
lcs 49.000000
lrs 0.755102
lps -4.565771
lms -0.093179
Name: 70_66, dtype: float64
上面找出失败率最高的分类70_66，75％以上的交易都是失败的交易
下面随便找个分类可视化一下，你最终找出来的分类就是类似这个的第8分类还有第29分类
寻找全局最优
# 摘录部份代码，具体请查阅UmpBase.py
def brust_min(self):
"""
全局最优
:return:
"""
cprs = self.cprs
optv = sco.brute(self.min_func_improved, ((round(cprs['lps'].min(), 2), 0, 0.5), (round(cprs['lms'].min(), 2),
round(cprs['lms'].max(), 3),
0.01),
(round(cprs['lrs'].min(), 2), round(cprs['lrs'].max(), 2), 0.1)),
finish=None)
return optv
def sco_min(self, guess):
"""
局部最优借
:param guess:
:return:
"""
cprs = self.cprs
bnds = ((round(cprs['lps'].min(), 3), round(cprs['lps'].max(), 3)),
(round(cprs['lms'].min(), 3), round(cprs['lms'].max(), 3)),
(round(cprs['lrs'].min(), 3), round(cprs['lrs'].max(), 3)))
optv = sco.minimize(self.min_func_improved, guess, method='BFGS',
bounds=bnds)
return optv
def min_func(self, lpmr):
cprs = self.cprs
nts = self.nts
llps = cprs[(cprs['lps'] <= lpmr[0]) & (cprs['lms'] <= lpmr[1]) & (cprs['lrs'] >= lpmr[2])]
nts_pd = pd.DataFrame()
for nk in llps.index:
nts_pd = nts_pd.append(nts[nk])
if nts_pd.empty:
return np.array([0.0001, 0])
nts_pd = nts_pd.drop_duplicates(subset='ind', keep='last')
num = nts_pd.shape[0]
loss_rate = nts_pd.result.value_counts()[0] / nts_pd.result.value_counts().sum()
win_rate = nts_pd.result.value_counts()[1] / nts_pd.result.value_counts().sum()
improved = (nts_pd.shape[0] / self.fiter.order_has_ret.shape[0]) * (loss_rate - win_rate)
# print improved
return np.array([improved, num])
def min_func_improved(self, lpmr):
"""
求最大提高，min负数
"""
return -self.min_func(lpmr)[0]
train_ump.brust_min()
# out
array([-0.48, 0. , 0.65])
将全局结果-0.48, 0. 0.65带入sco_min求局部优化
guess = [-0.63, 0. , 0.65]
train_ump.sco_min(guess)
# out
fun: -0.012936482367227579
hess_inv: array([[1, 0, 0],
[0, 1, 0],
[0, 0, 1]])
jac: array([ 0., 0., 0.])
message: 'Optimization terminated successfully.'
nfev: 5
nit: 0
njev: 1
status: 0
success: True
x: array([-0.63, 0. , 0.65])
上面所有选择最优的目的就是筛选能达到最优化的类别子集，为什么呢？因为比如某个分类虽然65%以上的单子都是失败的，但是那35%盈利的单子收益巨大，很可能出现这种情况在你使用高风险因子的时候，所以解最优方程组使用凸优化技术选取最优子集
llps = train_ump.cprs[(train_ump.cprs['lps'] <= -0.63) & (train_ump.cprs['lms'] <= -0.00 )& (train_ump.cprs['lrs'] >=0.65)]
llps
由于简书不支持html表格，所以完整表格请查询git上ipython notebook完整版本
# 针对子集llps的对之前交易的负作用力的统计
def choose_cprs_component(self, llps):
"""
:param llps: cprs[(so.cprs['lps'] < 0) & (so.cprs['lms'] < -0.0)]
你所需要的符合筛选条件的cprs
:return:
"""
if not hasattr(self, 'cprs'):
raise ValueError('gmm_component_filter not exe!!!! ')
nts_pd = pd.DataFrame()
for nk in llps.index:
nts_pd = nts_pd.append(self.nts[nk])
nts_pd = nts_pd.drop_duplicates(subset='ind', keep='last')
ZLog.info('nts_pd.shape = {0}'.format(nts_pd.shape))
loss_rate = nts_pd.result.value_counts()[0] / nts_pd.result.value_counts().sum()
win_rate = nts_pd.result.value_counts()[1] / nts_pd.result.value_counts().sum()
ZLog.info('nts_pd loss rate = {0}'.format(loss_rate))
improved = (nts_pd.shape[0] / self.fiter.order_has_ret.shape[0]) * (loss_rate - win_rate)
ZLog.info('improved rate = {0}'.format(improved))
xt = self.fiter.order_has_ret.result.value_counts()
ZLog.info('predict win rate = ' + str(xt[1] / xt.sum() + improved))
nts_pd.sort_index()['profit'].cumsum().plot()
plt.show()
如下显现这些选取的子集llps的对之前交易的负作用力
-
loss_rate稍小相对阀值0.65。
-
预期胜率提升0.0129
train_ump.choose_cprs_component(llps) ＃ out nts_pd.shape = (1920, 9) nts_pd loss rate = 0.6359375 improved rate = 0.0129364823672 predict win rate = 0.513618002032
如下表格所示看看这个61_50有72%失败的分类列，发现内在的隐含意义
deg_windowPd， deg_60WindowPd都是在－5－－11的负数，wave_score1会在1.5-2， deg_hisWindowPd没有明显规律，看到了吗，我们能从gmm－hmm的分类中发现我们能理解的规律，这就保证了我们的交易信心，对比黑盒的深度学习方式，优点一目了然
如下所示测试集没有开启因子优化的结果0.497，模型预测能提高0.0129 根据数据显示可以优化到0.509吗？
test_ump = UmpMainClass(orders_pd_test, MlFiterGoldenPdClass)
test_ump.show_general()
＃ out
all fit order = (4588, 31)
win rate = 0.497820401046
profit_cg.sum() = 23.8727798282
win mean = 0.0724627453005 loss_mean = -0.0615429338615
将整个优化好的模型序列话到本地
train_ump.dump_clf(llps)
使用切割测试集开启因子优化回测优化：
-
use_last_test=True
-
BuyGoldenFactor.g_enable_fiter = True
import BuyGoldenFactor from BuyGoldenFactor import BuyGoldenFactorClass import MetricsManger from MetricsManger import metrics_rsc from FactorMetrics import METRICSTYPE
BuyGoldenFactor.g_enable_fiter = True buy_factors = [{'XD': 42, 'class': BuyGoldenFactorClass, 'draw': True}] out, orders_pd_test_enable_fiter = MetricsManger.make_metrics_rsc_mul_symbol_grid(buy_factors, n_folds=6, score_type=METRICSTYPE.SYSMBOL_R_SCORES_GOLDEN.value, ret_cnt_need=0, train_test_split=False, use_last_test=True, force_one_process=False)
test_filter_ump = UmpMainClass(orders_pd_test_enable_fiter, MlFiterGoldenPdClass)
test_filter_ump.show_general()
# out
all fit order = (4335, 31)
win rate = 0.504498269896
profit_cg.sum() = 26.3090428828
win mean = 0.0691880572237 loss_mean = -0.0582673178493
我们直观的看看都有哪些交易被阻拦了
import TradeProxy
unsame_order = TradeProxy.find_unsame_in_2orders(orders_pd_test, orders_pd_test_enable_fiter)
unsame_order = unsame_order[unsame_order.result <> 0]
unsame_order.shape
# out
(253, 32)
如下所示之前预测失败率0.635，实际筛出来的失败率是0.616 还不错
pd.options.display.max_columns = 100
unsame_order.sort_values('buy Date').profit_cg.cumsum().plot()
xt = unsame_order.result.value_counts()
ZLog.info('unsame_order loss rate = ' + str(float(xt[-1]) / xt.sum()))
＃ out
unsame_order loss rate = 0.616600790514
如下图所示看下有很多收益超过20%的单子被block掉了，虽然也有很多损失超过20%的单子 解决方案：gmm分类中找损失超过多少阀值的类似优先筛选或者组合权重筛选 之后章节会引入边裁机制解决这个问题
import MarketDrawer
# 显示三个被拦截了的收益大于20%的单子
MarketDrawer.plot_candle_from_order(unsame_order[unsame_order.profit_cg > 0.20][:3])
# 显示2个被拦截了的损失大于20%的单子
MarketDrawer.plot_candle_from_order(unsame_order[unsame_order.profit_cg < -0.20][:2])
lps_range = (round(train_ump.cprs['lps'].min(), 2), round(train_ump.cprs['lps'].max(), 2), 0.1)
lms_range = (round(train_ump.cprs['lms'].min(), 2), round(train_ump.cprs['lms'].max(), 2), 0.01)
lrs_range = (round(train_ump.cprs['lrs'].min(), 2), round(train_ump.cprs['lrs'].max(), 2), 0.01)
def interact_llps(lps, lms, lrs):
it_llps = train_ump.cprs[(train_ump.cprs['lps'] <= lps) & (train_ump.cprs['lms'] <= lms)& (train_ump.cprs['lrs'] >=lrs)]
if not it_llps.empty:
train_ump.choose_cprs_component(it_llps)
from ipywidgets import interact
interact(interact_llps, lps=lps_range, lms=lms_range, lrs=lrs_range)
完整可交互请参阅git上完整版本
使用视觉上感觉更好的进行回测
llps = train_ump.cprs[(train_ump.cprs['lps'] <= -0.63) & (train_ump.cprs['lms'] <= -0.00 )& (train_ump.cprs['lrs'] >=0.68)]
train_ump.dump_clf(llps)
BuyGoldenFactor.g_enable_fiter = True
buy_factors = [{'XD': 42, 'class': BuyGoldenFactorClass, 'draw': True}]
out, orders_pd_test_enable_fiter2 = MetricsManger.make_metrics_rsc_mul_symbol_grid(buy_factors, n_folds=6,
score_type=METRICSTYPE.SYSMBOL_R_SCORES_GOLDEN.value, ret_cnt_need=0, train_test_split=False,
use_last_test=True, force_one_process=False)
如下所示结果还没之前的好呀，看来可以比较相信凸优化选择的最优参数
UmpMainClass(orders_pd_test_enable_fiter2, MlFiterGoldenPdClass).show_general()
＃ out
all fit order = (4477, 31)
win rate = 0.50033504579
profit_cg.sum() = 25.0138982168
win mean = 0.0712054456398 loss_mean = -0.0601899144826
修改拦截规则试试，如下可视化找到0， 0， 0.65有2215个 修改需要命中分类列的数量， BuyGoldenFactor.g_fiter_ind_cnt = 3 看看效果，简单说就是找一个比较宽松的限制条件，但是类别以前命中一个就拦截了，现在要命中三次，你可以变化出无数个变种在具体应用上，这里只是提供基础思路
llps = train_ump.cprs[(train_ump.cprs['lps'] <= 0) & (train_ump.cprs['lms'] <= 0 )& (train_ump.cprs['lrs'] >=0.65)]
train_ump.dump_clf(llps)
BuyGoldenFactor.g_enable_fiter = True
BuyGoldenFactor.g_fiter_ind_cnt = 3
buy_factors = [{'XD': 42, 'class': BuyGoldenFactorClass, 'draw': True}]
out, orders_pd_test_enable_fiter_ = MetricsManger.make_metrics_rsc_mul_symbol_grid(buy_factors, n_folds=6,
score_type=METRICSTYPE.SYSMBOL_R_SCORES_GOLDEN.value, ret_cnt_need=0, train_test_split=False,
use_last_test=True, force_one_process=False)
