Lọc theo bộ sưu tập

Bộ lọc:


Bộ lọc:


Bộ lọc:

Kết quả tìm kiếm

  • Trang trước
  • 1
  • Trang sau
Danh sách kết quả tìm kiếm tài liệu từ 1 đến 2 trong 2 tài liệu phù hợp.
Tài liệu phù hợp với tiêu chí tìm kiếm:
  • BB


  • Tác giả: Tao, R.;  Người hướng dẫn: -;  Người tham gia: Zhang, S.; Huang, X.; Tao, M.; Ma, J.; Ma, S.; Zhang, C.; Zhang, T.; Tang, F.; Lu, J.; Shen, C.; Xie, X. (2019)

  • Objective: This study focused on developing a fast and accurate automatic ischemic heart disease detection/localization methodology. Methods: Twavewas segmented from averaged Magnetocardiography (MCG) recordings and 164 features were subsequently extracted. These features were categorized into three groups: time domain features, frequency domain features, and informa-tion theory features. Next, we compared different machine learning classifiers including: k-nearest neighbor, decision tree, support vector machine (SVM), and XGBoost. To identify ischemia heart disease (IHD) case, we selected three classifiers with best performance and applied model ensemble to average results. All 164 features were used in this stage. To localize ischemia, we classified IHD group according to stenosis ...

  • BB


  • Tác giả: Liu, Y.;  Người hướng dẫn: -;  Người tham gia: He, C.; Li, X.; Zhang, C.; Tian, C. (2019)

  • In this paper, we investigate the great potential of the combination of machine learning technology and wireless communications. Currently, many researchers have proposed various optimization algorithms on resource allocation for distributed antenna systems (DASs). However, the existing methods are mostly hard to implement because of their high computational complexity. In this paper, a new system model for machine learning is considered for the scenario of DAS, which is more practical with its low computational complexity. We utilize the k-nearest neighbor (k-NN) algorithm based on the database of a traditional sub-gradient iterative method to get a power allocation scheme for DAS. The simulation results show that our k-NN algorithm can also obtain the power distribution scheme whi...

  • Trang trước
  • 1
  • Trang sau