Hottest Questions This Week

6

votes

2

answers

79

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What's the point with neural networks if you can only predict linear test data?

machine-learning deep-learning

answered yesterday noe 12k

1

vote

3

answers

61

views

+50

Multivariate time series forecast with VAR confusion

modified 5 hours ago Ethan 1,309

1

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2

answers

28

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Low scale ML/statistical techniques for data poor settings

machine-learning classification time-series data-mining logistic-regression

modified May 9 at 20:38 Sammy 3,988

0

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1

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21

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in binary classification where class labels are {-1, 1} is preprocessing needed?

machine-learning classification preprocessing

modified May 10 at 12:55 Leevo 5,207

0

votes

1

answer

40

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Error is occurring setting an array element with a sequence

machine-learning python pandas dataframe

modified May 9 at 15:08 Nikos M. 1,243

2

votes

1

answer

39

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Basic doubt regarding “training” of a YOLO model

machine-learning cnn image-classification image-recognition yolo

answered May 9 at 17:41 Ubikuity 366

2

votes

1

answer

30

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The affect of bootstrap on Isolation Forest

python anomaly-detection isolation-forest

answered 2 days ago Julio Jesus 1,573

0

votes

1

answer

45

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How to implement random cropping during training?

python deep-learning tensorflow cnn data-augmentation

modified 2 days ago spb 18

2

votes

1

answer

32

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Multi-output, multi-timestep sequence prediction with Keras

keras tensorflow time-series sequence-to-sequence multi-output

modified yesterday MGreen 21

0

votes

1

answer

32

views

What's the issue with my code for visualizing linear regression in 3 dimensions with matplotlib?

python visualization matplotlib

modified May 11 at 12:30 Stephen Rauch♦ 1,735

1

vote

1

answer

23

views

Optimal points of $f(x,y)=x^2 + y^2 + \beta xy + x + 2y$

optimization

modified May 9 at 17:27 Siong Thye Goh 2,883

1

vote

1

answer

26

views

Use trained non linear regression model to identify variables that maximize the predicted value

machine-learning regression

modified May 11 at 16:35 sbhatt 111

2

votes

1

answer

31

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How to generate training instances from multivariate normal distribution?

python classification dataset gaussian

answered May 9 at 22:59 Julio Jesus 1,573

0

votes

0

answers

31

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AB testing for Recommender models

machine-learning deep-learning classification predictive-modeling recommender-system

modified May 10 at 12:27 Carlos Mougan 4,570

0

votes

0

answers

31

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Low validation accuracy and very high epoch time

machine-learning python keras cnn image-classification

asked May 9 at 15:42 Ciprian Alexandru 11

0

votes

0

answers

31

views

TF/keras implement residual block

keras tensorflow convolutional-neural-network convolution implementation

asked May 11 at 7:25 computational_scientist 1

0

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1

answer

24

views

reprocessing steps for images before training classification models

image-classification image-preprocessing

answered May 10 at 9:10 spawnfile 26

2

votes

1

answer

23

views

what is the meaning of independent and identically distribution of samples in a dataset for neuralnetworks

machine-learning neural-network

answered yesterday 10xAI 4,459

0

votes

0

answers

29

views

confusion about PCA algorithm matlab

pca

asked May 9 at 0:59 OnurTR 15

0

votes

0

answers

29

views

CNN Color Invariance

machine-learning cnn computer-vision

modified May 8 at 22:08 TheDude 1

0

votes

0

answers

28

views

Feature importance with Text features

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

modified 17 hours ago Math 141

0

votes

0

answers

27

views

How does shuffling make data identically distributed?

neural-network

modified May 10 at 21:11 Ethan 1,309

0

votes

1

answer

21

views

What exactly is convergence rate referring to in machine learning?

machine-learning python logistic-regression convergence

answered May 11 at 7:38 N. Kiefer 529

1

vote

1

answer

20

views

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

machine-learning nlp data-mining visualization

modified 5 hours ago Thomas Lee 153

0

votes

0

answers

25

views

Py error could not broadcast input array from shape (244,244,3) into shape (224,224,3)

python keras tensorflow numpy

modified yesterday guest 1

1

vote

1

answer

19

views

Custom POS tagger for health issues

nlp recommender-system named-entity-recognition

modified yesterday RonsenbergVI 854

0

votes

0

answers

24

views

XGBoost failing on highly imbalanced data!

classification xgboost class-imbalance hyperparameter-tuning

asked May 10 at 9:18 Aditi 1

2

votes

1

answer

18

views

Do Activation Functions map to Higher Dimensions?:

tensorflow activation-function

answered May 11 at 23:29 Ubikuity 366

1

vote

1

answer

18

views

Independence of Features assumption in Naive Bayes

probability naive-bayes-classifier naive-bayes-algorithim

answered 11 hours ago Anvar Kurmukov 126

0

votes

1

answer

22

views

Grouping with non-sequential index (datetime) [Pandas] [Python]

python pandas

modified May 11 at 15:56 Julio Jesus 1,573

1

vote

1

answer

22

views

Flag consecutive dates by group

r dataframe dplyr

modified 19 hours ago rcs 670

1

vote

1

answer

22

views

pandas groupby.count doesn't count zero occurrences

pandas groupby

answered 11 hours ago Anvar Kurmukov 126

1

vote

0

answers

21

views

How can I apply K means algorithm to detect a pattern? [closed]

python k-means unsupervised-learning data-analysis

asked May 9 at 8:57 Chirag Atha 11

1

vote

0

answers

21

views

Understanding model's learning curves

cnn overfitting regularization

asked May 10 at 7:34 Vishal 11

1

vote

0

answers

21

views

how to use CNN-LSTM with timedistributed

time-series

modified May 10 at 16:12 Ethan 1,309

0

votes

1

answer

21

views

Is it possible to implement a Recommender System without having a ratings/previous purchases similar data?

machine-learning recommender-system unsupervised-learning

answered May 11 at 21:33 Dimitris Paraschakis 1

0

votes

1

answer

21

views

How to choose feedforward architecture for few number of features but very large instance?

neural-network bigdata features

modified May 12 at 2:08 jason 259

0

votes

1

answer

16

views

Tree based feature transformation

decision-trees

modified May 11 at 18:12 Julio Jesus 1,573

1

vote

0

answers

20

views

How to use keras custom data generator to build a model

python neural-network keras tensorflow cnn

modified May 9 at 12:11 Shayan Shafiq 948

1

vote

1

answer

20

views

What if irrelevant features impact the outputs?

machine-learning classification dataset feature-selection

answered May 8 at 23:03 Erwan 13.9k

0

votes

0

answers

20

views

Is my approach for a loss function that adds more importance to negative samples reasonable?

regression xgboost loss-function

asked May 11 at 14:11 Tim Berti 1

0

votes

1

answer

20

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KNN Variance using a high value of K and cross-validation

machine-learning dataset k-nn variance bias

answered 2 days ago Sammy 3,988

0

votes

1

answer

15

views

Best parameters to try while hyperparameter tuning in Decision Trees

python scikit-learn decision-trees

answered May 11 at 7:51 N. Kiefer 529

0

votes

0

answers

19

views

Optimizing Decision Model with incomplete testset

classification hyperparameter-tuning

modified 15 hours ago Raphael Roth 101

0

votes

1

answer

19

views

Random Forest but keep only leaves with impurities below a threshold

machine-learning random-forest xgboost gbm lightgbm

modified May 10 at 16:11 Ethan 1,309

0

votes

1

answer

19

views

when will the mlp give constant prediction?

machine-learning deep-learning neural-network

answered May 10 at 5:45 Jayaram Iyer 596

0

votes

1

answer

19

views

Is this a tried alternative to word embedding for NLP?

deep-learning nlp text-classification language-model

answered May 10 at 7:27 Leevo 5,207

1

vote

0

answers

19

views

how to improve baseline logistic regression in high dimensional binary classification problem?

machine-learning classification logistic-regression

asked May 8 at 15:54 haneulkim 299

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