defgradientDescent(X,y,theta,alpha,num_iters):m=y.shape[0]#print(m)# 存储历史误差 J_history=np.zeros((num_iters,1))foriterinrange(num_iters):# 对J求导,得到 alpha/m*(WX-Y)*x(i),(3,m)*(m,1)X(m,3)*(3,1)=(m,1)theta=theta-(alpha/m)*(X.T.dot(X.dot(theta)-y))J...
PredictorMatrix:预测变量矩阵,行=插补变量,列=为插补提供信息的变量,1和0表示使用和未使用。NonD到Gest这5行存在缺失值,因此只有这5行进行了插补,每个含有缺失值的变量都利用了其他变量提供的信息进行插补; Random generator seed value: 确保在相同的种子数下,每次运行时生成的随机数序列一致。也就是说,当使用相...
If you have an idea or even an implementation of a algorithm for matrix columns rearrangement, I'll be happy to try it, as my current algorithm is quite primitive. (The problem in question is almost the traveling salesman problem in Hamming metric). If you are a Python developer, you can...
# Object related pointso=np.array([ [1.,2], [2.,2], [3.,2], ])# Hypothesis related pointsh=np.array([ [0.,0], [1.,1], ])C=mm.distances.norm2squared_matrix(o,h,max_d2=5.)"""[[ 5. 1.][ nan 2.][ nan 5.]]""" ...
S9A). We analyzed the performance matrix in the dataset with the default threshold and the optimal threshold. Our findings showed that the performance of MAGPIE became better with stricter thresholds. MCC and F1-score increased by 2% and 3%, respectively (Additional file 2: Fig. S9A). ...
Kim, Y. G. et al. Optimal matrix size of chest radiographs for computer-aided detection on lung nodule or mass with deep learning. PubMedGoogle Scholar Taylor, A. G., Mielke, C. & Mongan, J. Automated detection of moderate and large pneumothorax on frontal chest X-rays using deep convo...
“Methods – MSA Transformer and column attention”), as well as the entries of the matrix used to embed input tokens, the weights in the feed-forward layers, and the positional encodings. Specifically, we sampled these entries (with the exception of bias terms and of the embedding vector ...
E Pearson correlation matrix of averaged gene expression levels per patient. Top, cytogenetic information; bottom, averaged gene expression levels of five MM driver genes Full size image As MM typically presents with BM infiltration of clonal plasma cells, myeloma cells in each patient enriched in ...
215.Kth-Largest-Element-in-an-Array (M) 287.Find-the-Duplicate-Number (H-) 378.Kth-Smallest-Element-in-a-Sorted-Matrix (H-) 373.Find-K-Pairs-with-Smallest-Sums (H) 668.Kth-Smallest-Number-in-Multiplication-Table (H-) 719.Find-Kth-Smallest-Pair-Distance (H-) 1918.Kth-Smallest-Subar...
The magic ofnested_dictsometimes gets in the way (ofpickleing for example). We can convert to and from a vanilla pythondictusing nested_dict.to_dict() nested_dict constructor >>>fromnested_dictimportnested_dict >>> nd=nested_dict() >>> nd["one"]=1>>> nd[1]["two"]="1 / 2"#...