Data Science Stack Exchange by Kiwix

Q&A for Data science professionals, Machine Learning specialists, and those interested in learning more about the field

Most popular questions

204 What are deconvolutional layers? 2015-06-13T09:56:45.397

173 Publicly Available Datasets 2014-05-18T18:45:38.957

150 How to set class weights for imbalanced classes in Keras? 2016-08-17T09:35:45.110

144 K-Means clustering for mixed numeric and categorical data 2014-05-14T05:58:21.927

137 Difference between fit and fit_transform in scikit_learn models? 2016-06-21T10:05:08.587

131 Best python library for neural networks 2014-07-07T19:17:04.973

129 Micro Average vs Macro average Performance in a Multiclass classification setting 2016-12-29T17:39:07.967

128 What is the "dying ReLU" problem in neural networks? 2015-05-07T04:11:56.600

121 The cross-entropy error function in neural networks 2015-12-10T06:22:48.927

108 When to use GRU over LSTM? 2016-10-17T11:47:45.340

107 Python vs R for machine learning 2014-06-12T06:04:48.243

107 When to use One Hot Encoding vs LabelEncoder vs DictVectorizor? 2015-12-19T19:30:35.527

94 How to draw Deep learning network architecture diagrams? 2016-11-03T03:10:24.893

94 Difference between isna() and isnull() in pandas 2018-09-06T10:14:01.593

92 Choosing a learning rate 2014-06-16T18:08:38.623

90 How do you visualize neural network architectures? 2016-07-18T17:08:17.237

87 How big is big data? 2014-05-14T03:56:20.963

85 Why do people prefer Pandas to SQL? 2018-07-12T09:25:51.067

83 SVM using scikit learn runs endlessly and never completes execution 2014-08-18T10:46:57.360

80 Why do cost functions use the square error? 2016-02-10T21:52:30.730

72 When should I use Gini Impurity as opposed to Information Gain? 2016-02-12T22:05:41.193

72 Training an RNN with examples of different lengths in Keras 2018-01-06T23:41:20.297

71 Advantages of AUC vs standard accuracy 2014-07-22T03:43:20.327

70 Backprop Through Max-Pooling Layers? 2016-05-12T08:38:12.740

70 Time series prediction using ARIMA vs LSTM 2016-07-11T16:45:21.020

69 How to get correlation between two categorical variable and a categorical variable and continuous variable? 2014-08-03T13:07:24.143

69 Data scientist vs machine learning engineer 2018-02-20T06:15:04.687

68 Train/Test/Validation Set Splitting in Sklearn 2016-11-15T14:55:04.130

66 strings as features in decision tree/random forest 2015-02-25T01:07:14.717

62 Are Support Vector Machines still considered "state of the art" in their niche? 2014-07-09T12:22:22.400

62 Open source Anomaly Detection in Python 2015-07-22T14:26:58.660

60 What is dimensionality reduction? What is the difference between feature selection and extraction? 2014-05-18T06:26:15.673

59 When is a Model Underfitted? 2014-06-13T16:44:29.323

58 How are 1x1 convolutions the same as a fully connected layer? 2016-07-17T13:23:22.600

55 Tools and protocol for reproducible data science using Python 2014-07-16T20:09:08.640

55 RNN vs CNN at a high level 2016-05-06T14:36:20.190

55 When to use (He or Glorot) normal initialization over uniform init? And what are its effects with Batch Normalization? 2016-07-28T17:12:29.933

54 Clustering geo location coordinates (lat,long pairs) 2014-07-17T09:50:41.437

54 Why do internet companies prefer Java/Python for data scientist job? 2016-08-18T05:05:45.470

52 Why Is Overfitting Bad in Machine Learning? 2014-05-14T18:09:01.940

52 Latent Dirichlet Allocation vs Hierarchical Dirichlet Process 2014-05-18T06:10:52.543

52 How to fight underfitting in a deep neural net 2014-07-13T09:04:39.703

51 Machine learning - features engineering from date/time data 2014-10-29T05:25:55.603

51 Is there any domain where Bayesian Networks outperform neural networks? 2016-01-17T13:04:57.100

51 Neural networks: which cost function to use? 2016-01-19T11:48:29.337

50 ValueError: Input contains NaN, infinity or a value too large for dtype('float32') 2016-05-26T04:13:04.033

49 Is the R language suitable for Big Data 2014-05-14T11:15:40.907

49 Should I go for a 'balanced' dataset or a 'representative' dataset? 2014-07-22T12:29:10.050

49 Adding Features To Time Series Model LSTM 2017-02-21T22:17:40.000

47 How to deal with version control of large amounts of (binary) data 2015-02-13T10:09:25.177


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