Data Science Stack Exchange

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117

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Accessing and Multiplying Individual Elements of a Layer's Output in Keras

modified 19 mins ago Community♦ 1

2

votes

1

answer

28

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Convert from many sub-tables to a single tidy dataframe

r data-cleaning

modified 1 hour ago Community♦ 1

1

vote

1

answer

352

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How to calculate the silhouette coefficient?

data-mining clustering k-means distance k-nn

modified 2 hours ago Community♦ 1

1

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1

answer

17

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Time series on syslogs

time-series

modified 3 hours ago Community♦ 1

0

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0

answers

5

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Evaluating regression model in python - How do I interpret my results?

machine-learning classification regression random-forest evaluation

asked 4 hours ago JohnSnowTheDeveloper 1

2

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1

answer

91

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Why does image segmentation benefit from fuzzy clustering?

machine-learning clustering k-means image-classification fuzzy-logic

modified 4 hours ago Community♦ 1

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1

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12

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Keras LSTM accuracy stuck at 50%

keras lstm accuracy

answered 4 hours ago Ugur MULUK 11

1

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2

answers

5k

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What does Negative Log Likelihood mean?

regression ensemble-modeling

answered 5 hours ago jarvis 1

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2

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35

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How to encode data with a feature having multidimensional features (colors)?

python clustering encoding

modified 5 hours ago Community♦ 1

1

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1

answer

12

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How to decide optimal threshold for my classification model from FPR, TPR and threshold

classification machine-learning-model performance confusion-matrix

modified 6 hours ago Community♦ 1

0

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1

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10

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Differences between applying KMeans over PCA and applying PCA over KMeans

clustering visualization k-means dimensionality-reduction pca

answered 6 hours ago Romain Reboulleau 130

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1

answer

40

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Impact of sparse features on tree-based models

machine-learning classification data-mining decision-trees xgboost

modified 7 hours ago Community♦ 1

0

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0

answers

8

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Bounding Boxes in YOLO Model

deep-learning classification computer-vision object-recognition object-detection

asked 7 hours ago Tanmay Bhatnagar 136

5

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1

answer

109

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Is feature scaling necessary in reinforcement learning for the agent to learn successfully?

reinforcement-learning feature-scaling

modified 8 hours ago Community♦ 1

4

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1

answer

268

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Why keep vocabulary and posting list separate in a search engine

information-retrieval search indexing

modified 9 hours ago Community♦ 1

5

votes

1

answer

2k

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Export weights (formula) from Random Forest Regressor in Scikit-Learn

python predictive-modeling regression random-forest scikit-learn

modified 10 hours ago Community♦ 1

0

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1

answer

429

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Random Forest Classifier Probabilities

python predictive-modeling random-forest unbalanced-classes

modified 11 hours ago Community♦ 1

1

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1

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69

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Impute missing population values in Census data

r missing-data data-imputation

modified 12 hours ago Community♦ 1

0

votes

0

answers

4

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Primal vs Dual SVM Problem for linearly separable data

svm optimization

asked 12 hours ago Najeebullah Shah 101

0

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1

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17

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Confusion with euclidean distance implementation

python data-mining

answered 12 hours ago Kasra Manshaei 2,946

0

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2

answers

40

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Best ML model for predicting yearly data with many blocks?

machine-learning time-series statistics data lstm

modified 13 hours ago Community♦ 1

0

votes

0

answers

7

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Parametric set of function regression models

regression parameter-estimation

asked 13 hours ago Er1Hall 1

6

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3

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1k

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Unbalanced class: class_weight for ML algorithms in Spark MLLib

machine-learning apache-spark unbalanced-classes weighted-data

modified 14 hours ago Community♦ 1

2

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1

answer

51

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How to properly predict date using Orange 3

prediction orange

modified 15 hours ago Community♦ 1

1

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1

answer

33

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Dealing with a dataset having target values on different scales?

machine-learning python predictive-modeling pandas data-cleaning

modified 16 hours ago Community♦ 1

1

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1

answer

43

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Interpreting lasso logistic regression feature coefficients in multiclass problem

classification feature-selection logistic-regression multiclass-classification

modified 17 hours ago Community♦ 1

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1

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9

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Can I make kaggle kernels read directly from my computer?

jupyter kaggle

answered 17 hours ago Neil Slater 15.5k

0

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0

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9

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using regression model to optimize teams working on work items

predictive-modeling regression optimization

modified 17 hours ago cs0815 113

0

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0

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7

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Description matching between two columns

classification text-mining text

asked 17 hours ago BlueSheepToken 101

1

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0

answers

14

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Test predictive power of classes in multiclass classification

predictive-modeling multiclass-classification

modified 17 hours ago shaifali Gupta 6

1

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0

answers

6

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Convolutional neural network for gray images

deep-learning keras tensorflow convnet computer-vision

asked 18 hours ago Noran 162

1

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1

answer

42

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Strange Behavior for trying to Predict Tennis Millionaires with Keras (Validation Accuracy)

neural-network keras

modified 18 hours ago Community♦ 1

1

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0

answers

7

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Handling missing values to optimize polynomial features

feature-engineering missing-data data-imputation

asked 18 hours ago Steven Van Dorpe 6

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0

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2

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When applying the discriminator loss to the generator of a GAN, do the gradients of the discriminator matter?

deep-learning gan

asked 18 hours ago arm 1

0

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1

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32

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Need recommandations of using timing variables for forecasting sales

machine-learning forecasting

modified 19 hours ago Community♦ 1

0

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1

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10

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How to add values to new row to a csv in python

python excel

answered 19 hours ago JahKnows 4,051

0

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3

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59

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How to statistically prove that a column in a dataframe is not needed

python statistics data-cleaning correlation

modified 20 hours ago Community♦ 1

2

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1

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12

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Linear Discriminant Analysis + bayesian theorem = LDA classifier??

classification bayesian lda-classifier

answered 20 hours ago Kid_Learning_C 11

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2

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53

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Which learning algorithms to use in what order - dimensionality reduction, bayesian network structure, regression?

machine-learning neural-network clustering logistic-regression bayesian-networks

modified 21 hours ago Community♦ 1

2

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1

answer

20

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Image dataset with timestamps?

dataset

modified 22 hours ago Community♦ 1

2

votes

2

answers

795

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ROC-AUC loss for GRU Model: Cannot use tflearn's loss in keras

neural-network keras recommender-system loss-function tflearn

modified 23 hours ago Community♦ 1

0

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1

answer

38

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How to deal with missing data for only some categories

categorical-data data-imputation

modified yesterday Community♦ 1

1

vote

1

answer

70

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Dataset of extremely low-dimensional images for PCA

machine-learning dataset pca

modified yesterday Community♦ 1

1

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1

answer

56

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LSTM future steps prediction with shifted y_train relatively to X_train

python time-series lstm forecasting

modified yesterday Community♦ 1

3

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1

answer

27

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Can someone please explain what this sample function is upto?

python data-cleaning probability numpy text-generation

modified yesterday Community♦ 1

0

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0

answers

5

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Laplacian smoothing on Class Probability (Naive bayes)

naive-bayes-classifier probabilistic-programming

asked yesterday Artie 1

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2

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2k

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ValueError: Input contains NaN, infinity or a value too large for dtype('float64')

machine-learning python scikit-learn pandas numpy

modified yesterday Community♦ 1

0

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0

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6

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Distribution of Features

machine-learning predictive-modeling linear-regression data-science-model normal-equation

asked yesterday akhilesh sayana 11

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