什么是合约交易？
1、合约交易是指买卖双方对约定未来某个时间按指定价格接收一定数量的某种资产的协议进行交易。The buying and selling objects of contract trading are standardized contracts formulated by the exchange,which specifies standardized information such as the type of goods,trading time,and quantity.The contract represents the rights and obligations of both the buyer and the seller.
合约量化，就是系统根据设置，自动进行买卖交易，上涨到一定点数则卖出平仓，下跌至相应点数则进行加仓操作，等待价格回调则卖出。Continuous operation achieves automated trading,allowing traders to avoid constantly keeping a close eye on the market.By using automated trading,users'personal subjective emotions are discarded,making trading more"rational".
Usually,we believe that complex models are better,but empirical analysis and academic research have shown that complex models often overmine historical data and cannot adapt to drastic market changes.On the contrary,simple models are more stable in the long run.
class PFLD::Impl {
public:
Impl() {
device = 0;
precision = 0;
power = 0;
memory = 0;
initialized_ = false;
}
~Impl() {
landmarker_->releaseModel();
landmarker_->releaseSession(session_);
}
int LoadModel(const char* root_path);
int ExtractKeypoints(const cv::Mat& img_face, std::vector<cv::Point2f>* keypoints);
std::shared_ptr<MNN::Interpreter> landmarker_;
const int inputSize_ = 96;
int device_;
int precision_;
int power_;
int memory_;
MNN::Session* session_ = nullptr;
MNN::Tensor* input_tensor_ = nullptr;
bool initialized_;
};
