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ID Bài Nhóm Điểm % AC # AC
a_week03_lasso_regression Lasso Regression via Coordinate Descent Machine Learning 100,00 0,0% 0
a_week03_model_serialization Linear Model Inference Machine Learning 100,00 0,0% 0
a_week03_pr_curve Average Precision (PR Curve Area) Machine Learning 100,00 0,0% 0
a_week03_random_forest Random Forest Classifier Machine Learning 100,00 0,0% 0
a_week03_ridge_regression Ridge Regression Machine Learning 100,00 0,0% 0
a_week03_roc_curve ROC AUC Score Machine Learning 100,00 0,0% 0
a_week03_sklearn_pipeline Standardize-then-Ridge Pipeline Machine Learning 100,00 0,0% 0
a_week03_xgboost_tuning Decision Tree Depth Tuning (XGBoost-style) Machine Learning 100,00 0,0% 0
a_week04_clustering_comparison Adjusted Rand Index Machine Learning 100,00 0,0% 0
a_week04_dbscan DBSCAN Machine Learning 100,00 0,0% 0
a_week04_explained_variance Explained Variance Ratios Machine Learning 100,00 0,0% 0
a_week04_feature_scaling_impact Feature Scaling Impact on K-Means Machine Learning 100,00 0,0% 0
a_week04_gmm_em_step GMM E-Step (Responsibility Computation) Machine Learning 100,00 0,0% 0
a_week04_hierarchical_clustering Hierarchical Clustering (Single Linkage) Machine Learning 100,00 0,0% 0
a_week04_kmeans_plusplus K-Means++ Initialization Machine Learning 100,00 0,0% 0
a_week04_mle_gaussian MLE for Gaussian Distribution Machine Learning 100,00 0,0% 0
a_week04_naive_bayes Gaussian Naive Bayes Classifier Machine Learning 100,00 0,0% 0
a_week04_silhouette_score Silhouette Score Machine Learning 100,00 0,0% 0
e_week03_binary_tree_paths Binary Tree Root-to-Leaf Paths Machine Learning 100,00 0,0% 0
e_week03_consistent_hashing Consistent Hashing Ring Machine Learning 100,00 0,0% 0
e_week03_interval_scheduling Interval Scheduling Maximisation Machine Learning 100,00 0,0% 0
e_week03_lru_eviction LRU Cache Simulation Machine Learning 100,00 0,0% 0
e_week03_serialize_binary_tree Serialize and Deserialize Binary Tree Machine Learning 100,00 0,0% 0
e_week04_disjoint_set_operations Disjoint Set Operations Machine Learning 100,00 0,0% 0
e_week04_kd_tree_nearest KD-Tree Nearest Neighbor Machine Learning 100,00 0,0% 0
e_week04_minimum_spanning_tree Minimum Spanning Tree (Kruskal's Algorithm) Machine Learning 100,00 0,0% 0
e_week04_topological_sort Topological Sort Machine Learning 100,00 0,0% 0
m_week03_bias_variance_decomp Bias-Variance Decomposition Machine Learning 100,00 0,0% 0
m_week03_gini_vs_entropy_proof Gini Impurity vs Entropy: Weighted Split Comparison Machine Learning 100,00 0,0% 0
m_week03_info_gain_compute Information Gain for a Binary Split Machine Learning 100,00 0,0% 0
m_week03_info_gain_compute_v2 Information Gain Ratio for a Categorical Feature Machine Learning 100,00 0,0% 0
m_week03_lasso_subgradient Lasso Soft-Thresholding Update Machine Learning 100,00 0,0% 0
m_week03_normal_equations_derive Normal Equations for Linear Regression Machine Learning 100,00 0,0% 0
m_week03_ridge_bias_variance Ridge Regression Bias-Variance Decomposition Machine Learning 100,00 0,0% 0
m_week03_roc_auc_geometric ROC AUC and Gini Coefficient Machine Learning 100,00 0,0% 0
m_week04_bootstrap_ci_derive Bootstrap CI: Standard Error and Confidence Interval Machine Learning 100,00 0,0% 0
m_week04_em_algorithm_gaussian EM Algorithm for 1D Gaussian Mixture Model Machine Learning 100,00 0,0% 0
m_week04_kernel_trick_polynomial Polynomial Kernel Matrix Machine Learning 100,00 0,0% 0
m_week04_kmeans_convergence K-Means WCSS Convergence Trace Machine Learning 100,00 0,0% 0
m_week04_mle_gaussian_params MLE for Multivariate Gaussian Parameters Machine Learning 100,00 0,0% 0
m_week04_pca_eigendecomposition PCA via Eigendecomposition of the Covariance Matrix Machine Learning 100,00 0,0% 0
m_week04_silhouette_score_derive Silhouette Score: Per-Point Derivation (1D) Machine Learning 100,00 0,0% 0
m_week04_svd_low_rank_approx SVD Low-Rank Approximation Error Machine Learning 100,00 0,0% 0
w2a_event_cnt_mat Event-Count Matrix Machine Learning 100,00 0,0% 0
w2a_groupby_agg GroupBy Log Aggregation Machine Learning 100,00 0,0% 0
w2a_miss_val Missing Value Imputation Strategy Machine Learning 100,00 0,0% 0
w2a_oof_encoder Out-of-Fold Target Encoder Machine Learning 100,00 0,0% 0
w2a_pipeline_correct Leaky vs Correct Scaling Pipeline Machine Learning 100,00 0,0% 0
w2a_target_encoder Leave-One-Out Target Encoder Machine Learning 100,00 0,0% 0
w2e_merge_intervals Merge Intervals Machine Learning 100,00 0,0% 0