Data Science Stack Exchange

2

votes

3

answers

9k

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Hyper-parameter tuning of NaiveBayes Classier

modified 28 mins ago Shayan Shafiq 950

0

votes

1

answer

28

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How do I predict a class for each time step using the information from previous timsteps

deep-learning classification

modified 1 hour ago Community♦ 1

1

vote

0

answers

7

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How to automatically segment multidimensional data?

time-series non-parametric

modified 2 hours ago Shayan Shafiq 950

7

votes

2

answers

181

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How to implement hierarchical labeling classification?

neural-network classification keras nlp text

modified 2 hours ago Community♦ 1

0

votes

1

answer

11

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Should I repeat the testing/training split while repeating K-fold cross validation?

machine-learning r random-forest

answered 3 hours ago fswings 211

0

votes

1

answer

36

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Advantages of CNN vs. LSTM for sequence data like text or log-files

deep-learning cnn lstm text sequence

modified 3 hours ago Community♦ 1

0

votes

1

answer

7

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Practical problems in anomaly detection where the number of normal data is extremely high compared to abnormal data

machine-learning anomaly-detection anomaly

answered 3 hours ago fswings 211

0

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1

answer

29

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What do the symbols in this image mean in relation to autoencoding? (which concepts do they represent and why?)

autoencoder mathematics

modified 4 hours ago Community♦ 1

1

vote

0

answers

17

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Why does this paper claim to have found a minimal width of $d_{in}+1$?

machine-learning deep-learning

modified 5 hours ago That Guy 113

1

vote

1

answer

1k

views

Improving prediction accuracy with XGBoost

scikit-learn xgboost

modified 5 hours ago Community♦ 1

1

vote

3

answers

61

views

+50

Multivariate time series forecast with VAR confusion

python time-series regression predictive-modeling

modified 5 hours ago Ethan 1,309

0

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0

answers

12

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Is this loss function useful for quantized training data

tensorflow loss-function

modified 5 hours ago Ethan 1,309

0

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0

answers

13

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Feature values with different units

feature-selection feature-extraction

modified 5 hours ago Ethan 1,309

0

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0

answers

8

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How to apply hierarchical cluster analysis using the Hellinger metric to an LDA model?

lda rstudio

modified 5 hours ago Ethan 1,309

1

vote

1

answer

20

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How to know the state-of-the-art recommended approaches for data science?

machine-learning nlp data-mining visualization

modified 6 hours ago Thomas Lee 153

0

votes

1

answer

2k

views

Multiple-input multiple-output CNN with custom loss function

machine-learning neural-network deep-learning cnn

modified 6 hours ago Community♦ 1

12

votes

3

answers

4k

views

Why do we need 2 matrices for word2vec or GloVe

word2vec word-embeddings matrix-factorisation

modified 6 hours ago mon 381

0

votes

1

answer

28

views

Best way to evaluate performance for my case

predictive-modeling accuracy

modified 7 hours ago Community♦ 1

1

vote

1

answer

547

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Error on custom RNN/LSTM with multiple inputs

deep-learning keras tensorflow cnn lstm

modified 8 hours ago Community♦ 1

1

vote

1

answer

5

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Pretrained models for Propositional logic

deep-learning question-answering

answered 8 hours ago Erwan 13.9k

7

votes

2

answers

744

views

Why leaky relu is not so common in real practice?

machine-learning neural-network deep-learning activation-function

answered 9 hours ago javad hamidi 11

2

votes

1

answer

236

views

Missing population values in census data

r missing-data data-imputation

modified 9 hours ago Community♦ 1

0

votes

0

answers

7

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ADAM optimizer yields sub-optimal results

machine-learning optimization ai

asked 10 hours ago Alex RD 1

2

votes

1

answer

29

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Dimensionality of the target for DQN agent training

machine-learning deep-learning q-learning dqn

modified 11 hours ago Community♦ 1

1

vote

0

answers

9

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Dealing with high frequency tokens during masked Language modelling?

machine-learning language-model imbalanced-data masking

asked 12 hours ago neel g 147

1

vote

1

answer

18

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Independence of Features assumption in Naive Bayes

probability naive-bayes-classifier naive-bayes-algorithim

answered 12 hours ago Anvar Kurmukov 126

1

vote

1

answer

22

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pandas groupby.count doesn't count zero occurrences

pandas groupby

answered 12 hours ago Anvar Kurmukov 126

1

vote

1

answer

1k

views

How can I adjust the legend when visualizing clusters in two dimensions?

python clustering pca matplotlib

modified 12 hours ago Community♦ 1

1

vote

0

answers

16

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Why would a cross-entropy approaching negative infinity?

machine-learning deep-learning

modified 12 hours ago Shayan Shafiq 950

0

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0

answers

8

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Model that predicts probability of correctness of another model

machine-learning deep-learning neural-network classification image-classification

asked 13 hours ago Paris 101

0

votes

0

answers

6

views

Method for Finding All Local Extrema Using Gradent Ascent/Descent

gradient-descent

asked 13 hours ago E Tam 101

0

votes

3

answers

134

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Rule of thumb for good number of features when dealing with grouped data

classification feature-selection

modified 13 hours ago Community♦ 1

0

votes

0

answers

5

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How does fusing operations lower accuracy for machine learning models?

optimization accuracy

asked 13 hours ago zebular13 1

2

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1

answer

35

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Showing standard deviation for training curve

neural-network statistics plotting

answered 14 hours ago Brian Spiering 11.9k

0

votes

2

answers

32

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How to add epoch in sklearn LinearSVC?

machine-learning python scikit-learn python-3.x

modified 14 hours ago Community♦ 1

0

votes

0

answers

4

views

Visualization of SeqSelfAttention layer from Keras

nlp visualization sentiment-analysis attention-mechanism graph-neural-network

asked 15 hours ago Toon Peters 1

2

votes

1

answer

80

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Which data mining or machine learning algorithm would be appropriate for learning ordered frequent patterns?

machine-learning data-mining association-rules

modified 15 hours ago Community♦ 1

0

votes

0

answers

3

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Proportional Hazards Assumption - Schoenfeld Residuals X-Axis

logistic-regression survival-analysis

asked 16 hours ago Starbucks 165

0

votes

0

answers

19

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Optimizing Decision Model with incomplete testset

classification hyperparameter-tuning

modified 16 hours ago Raphael Roth 101

2

votes

2

answers

167

views

Keras custom layer using tensorflow function

keras tensorflow

modified 16 hours ago Community♦ 1

0

votes

0

answers

4

views

VAE will always results in somewhat different latent vectors for same input?

autoencoder vae

asked 16 hours ago Janosch 101

0

votes

0

answers

12

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Low Silhoutte Score on Scaled Data

machine-learning clustering k-means

asked 17 hours ago Chirag 1

3

votes

1

answer

41

views

machine learning disasters

machine-learning overfitting self-driving

modified 17 hours ago Community♦ 1

0

votes

0

answers

6

views

Large summarization dataset in Portuguese [closed]

nlp text automatic-summarization

asked 17 hours ago Edgar Kenji Tanaka 1

0

votes

0

answers

12

views

How to make a prediction with an existing model in keras?

machine-learning python keras cnn

asked 18 hours ago conopizda2 1

0

votes

0

answers

28

views

Feature importance with Text features

machine-learning python scikit-learn feature-selection feature-importances

modified 18 hours ago Math 141

2

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2

answers

31

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Test Binary Classifier on a Test-set that includes only one class

machine-learning classification class-imbalance

modified 18 hours ago Community♦ 1

0

votes

0

answers

3

views

Are 'error value' and accuracy equivalent or can be used interchangeably in machine learning?

machine-learning

asked 18 hours ago Taeil 1

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