Data Science Stack Exchange

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53

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+50

Combining heterogeneous numerical and text features

modified 2 mins ago Archana David 1,040

1

vote

1

answer

1k

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LSTM-Model - Validation Accuracy is not changing

python neural-network deep-learning lstm

modified 21 mins ago Community♦ 1

0

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0

answers

5

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what is the formula used in the scale_quantile function in R?

r

asked 36 mins ago Luiy_coder 1

0

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0

answers

6

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Getting context-word pairs for a continuous bag of words model and other confusions

word-embeddings word2vec bag-of-words context-vector

asked 58 mins ago sangstar 113

0

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0

answers

10

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GloVe word embedding

python word-embeddings

asked 1 hour ago GabS 111

3

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1

answer

155

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Feature Engineering Lists\Vectors as values in dataframe

python pandas feature-engineering

modified 2 hours ago Community♦ 1

0

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0

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3

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How to get access to ASHRAE RP-1043 dataset?

dataset

asked 2 hours ago Rohan Nolan Lasrado 1

3

votes

3

answers

270

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What's the difference between GridSearchCrossValidation score and score on testset?

python classification keras grid-search gridsearchcv

answered 2 hours ago Brian Spiering 12.9k

0

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0

answers

12

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What is meant by data dependent kernel?

machine-learning svm kernel

modified 3 hours ago Nicolas M 612

1

vote

1

answer

164

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extract document topic vectors from lda model

python classification feature-extraction lda gensim

modified 3 hours ago Community♦ 1

0

votes

0

answers

7

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Handle with very short and very long sequences with Neural Network

nlp lstm multiclass-classification embeddings sequence

asked 3 hours ago scalessio 1

0

votes

1

answer

15

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SageMaker - mini_batch_size what is it and why can't I get it higher than 5?

image-classification sagemaker

modified 3 hours ago Stephen Rauch♦ 1,745

2

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2

answers

64

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Python: advice on which machine learning algorithm to use for a problem which involves lots of randomness

machine-learning python deep-learning

modified 3 hours ago Hedayatullah Sarwary 416

0

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1

answer

10

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Aggregation of low level features for a classifier

machine-learning classification feature-engineering binary-classification

answered 3 hours ago BeamsAdept 656

5

votes

1

answer

774

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Comparison between addition and multiplication function in deep neural network?

neural-network deep-learning convolution mathematics image-preprocessing

modified 3 hours ago Hedayatullah Sarwary 416

1

vote

0

answers

20

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Contradictory learning curves in cross validation

machine-learning cross-validation boosting

modified 3 hours ago user357269 111

1

vote

1

answer

30

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How to create a multi label classification network in Keras if I have the training data with various accuracy?

machine-learning python neural-network keras tensorflow

modified 4 hours ago Community♦ 1

0

votes

1

answer

18

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How do you research and list up thinkable encoders and decoders when you build NLP models?

machine-learning deep-learning nlp

answered 4 hours ago Ozcan Gundes 21

0

votes

0

answers

7

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How to extract undetected object class labels after extracting `y_pred` from `predictions. pth` inference file for Mask rcnn

image-classification object-detection inference

modified 4 hours ago Kofi 1

0

votes

0

answers

13

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How to select the variables to form a stationary series after a Johansen's coint test if the null hypothesis isn't rejected for all values of r?

python

modified 4 hours ago Vin 1

1

vote

2

answers

195

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Why does my model sometimes not learn well from same data?

cnn

modified 5 hours ago Community♦ 1

0

votes

0

answers

18

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Value Error: Specifying the columns using strings is only supported for pandas Data Frames

machine-learning linear-regression dataframe error-handling

modified 5 hours ago spectre 57

0

votes

1

answer

20

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Multiple Hypotheses in python

machine-learning scipy chi-square-test pvalue

modified 5 hours ago Archana David 1,040

0

votes

0

answers

7

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Should I use or tune `reg_lambda` or `reg_alpha` hyperparameters when using a tree booster in XGBoost

machine-learning scikit-learn xgboost lasso ridge-regression

modified 5 hours ago Bex T. 1

0

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1

answer

8

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Can we pull data under different categories related to other column simultaneously in Pandas

python dataset pandas data-cleaning data-science-model

answered 5 hours ago BeamsAdept 656

1

vote

4

answers

347

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Why does changing the cluster number change the plot in Kmeans?

r clustering k-means plotting

modified 6 hours ago Community♦ 1

0

votes

1

answer

8

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Jargon extraction in a text

python nlp corpus

answered 6 hours ago Palak Bansal 128

0

votes

2

answers

40

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Which neural network is better?

neural-network accuracy mnist theory

modified 6 hours ago Pantelis Kyriakidis 1

0

votes

1

answer

481

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Neural Network Sensordata as Input

python tensorflow bigdata

modified 7 hours ago Community♦ 1

0

votes

1

answer

16

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Concatenating Data in two years

dataset data-cleaning aggregation

answered 8 hours ago BeamsAdept 656

2

votes

1

answer

134

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Reinforcement Learning on real time data over a web server

machine-learning deep-learning time-series dataset reinforcement-learning

modified 8 hours ago Community♦ 1

2

votes

1

answer

47

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How to classify objects from a description in natural language

machine-learning classification nlp

answered 8 hours ago Nicolas M 612

0

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1

answer

13

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finding winning strategy

machine-learning time-series optimization

answered 9 hours ago Nicolas M 612

1

vote

1

answer

59

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How do I prepare data in which each output row depends on multiple input rows?

machine-learning data-mining dataset data-cleaning

modified 9 hours ago Community♦ 1

0

votes

0

answers

4

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NLP behind Google Assistant, Amazon Echo and Apple Siri

python nlp chatbot

asked 9 hours ago Loukik 31

1

vote

1

answer

11

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What is the difference between Multi task learning and domain generalization

transfer-learning multitask-learning domain-adaptation

answered 9 hours ago Archana David 1,040

1

vote

1

answer

942

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Validation data for multi-series stateful LSTM

neural-network lstm rnn

modified 10 hours ago Community♦ 1

2

votes

1

answer

104

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Use cross entropy to create decision tree classifier

decision-trees multiclass-classification

modified 11 hours ago Community♦ 1

2

votes

2

answers

50

views

Best practices for scoring hundreds of models on the same massive dataset?

scoring

answered 11 hours ago Salio 101

0

votes

1

answer

24

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Underfitting issue

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

answered 11 hours ago leon dobrzinsky 131

0

votes

1

answer

21

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How does TensorFlow compute gradients of nonelementary integrals?

tensorflow mathematics

answered 12 hours ago 10xAI 4,774

0

votes

1

answer

14

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Can anyone interpret this Recurrent Network Encoder-Decoder question?

machine-learning neural-network rnn encoder

answered 12 hours ago leon dobrzinsky 131

1

vote

1

answer

1k

views

How to set the Reconstruction error threshold for anomaly detection using autoencoders?

neural-network deep-learning keras unsupervised-learning autoencoder

modified 12 hours ago Community♦ 1

4

votes

1

answer

59

views

What ML architecture fits fixed length signal regression?

machine-learning neural-network regression machine-learning-model neural

modified 13 hours ago Community♦ 1

2

votes

2

answers

103

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A/B Testing (Binomial Distribution vs Random Distribution)

statistics distribution descriptive-statistics ab-test

modified 14 hours ago Community♦ 1

2

votes

1

answer

30

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Comapring hidden markov models

sequence markov-hidden-model

modified 15 hours ago Community♦ 1

2

votes

1

answer

661

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Whole time column in csv file convert into UTC (epoch) using python

python time-series csv

modified 16 hours ago Community♦ 1

1

vote

1

answer

993

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While retraining a pretrained model, getting: ValueError: Input 0 is incompatible with layer flatten_1: expected min_ndim=3, found ndim=2

neural-network deep-learning keras

modified 17 hours ago Community♦ 1

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