Data Science Stack Exchange

0

votes

0

answers

3

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Underfitting: Kernelizing and Optimazing

supervised-learning

asked 4 mins ago jennifer ruurs 1

0

votes

1

answer

5

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Combining text (NLP), numeric and categorical data for a regression problem

modified 15 mins ago funkyFunk 1

1

vote

2

answers

18

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Which scoring for GridSearchCV is best, when imbalanced multiclass dataset?

svm class-imbalance scoring gridsearchcv

answered 54 mins ago German C M 1

0

votes

1

answer

8

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Correcting for one of multiple strong batch effects in a dataset

regression linear-regression preprocessing normalization feature-scaling

answered 1 hour ago Adelson Dias 3

0

votes

1

answer

20

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Time series analysis

time-series data-mining predictive-modeling bigdata model-selection

answered 1 hour ago 89f3a1c 164

1

vote

0

answers

15

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Bagging vs Boosting, Bias vs Variance, Depth of trees

random-forest xgboost boosting variance bias

modified 1 hour ago Adelson Dias 3

0

votes

2

answers

39

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Multivariate Regression Error “AttributeError: 'numpy.ndarray' object has no attribute 'columns'”

python linear-regression

answered 1 hour ago Sivaiah pathapati 1

0

votes

1

answer

14

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Information Extraction/Semantic Search for long, unstructured documents

nlp text-mining information-retrieval named-entity-recognition

modified 2 hours ago Adelson Dias 3

1

vote

1

answer

292

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Intuition / Importance of intermediate supervision in deep learning

machine-learning neural-network deep-learning cnn supervised-learning

answered 2 hours ago TripleS 118

0

votes

1

answer

8

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Where to get the Datascience Use cases for practice [duplicate]

linear-regression data-science-model usecase

modified 2 hours ago Stephen Rauch♦ 1,643

0

votes

0

answers

2

views

How Region Proposal Network (RPN) works for Testing image (unlabeled data)?

faster-rcnn

asked 2 hours ago Tejas Bavaskar 1

0

votes

0

answers

6

views

Optimal practices to group data by Customer ID for churn prediction

machine-learning predictive-modeling data-cleaning feature-engineering churn

asked 3 hours ago caresnomore 1

0

votes

1

answer

26

views

Getting Validation Accuracy of 99% with MNIST with less than 10000 parameters CNN

python keras cnn

modified 3 hours ago Community♦ 1

1

vote

1

answer

26

views

Can AI (NLP) convert user questions (text) into database SQL queries?

neural-network nlp ai chatbot

modified 3 hours ago ranit.b 115

0

votes

1

answer

14

views

Time Series segmentation

time-series predictive-modeling

answered 3 hours ago Adelson Dias 3

0

votes

2

answers

223

views

Tattoo Image Recognition - Should I Crop Training Data Background

machine-learning image-classification object-detection

modified 4 hours ago Community♦ 1

1

vote

1

answer

25

views

How does XGBoost use softmax as an objective function?

xgboost multiclass-classification

answered 4 hours ago Leevo 1,562

1

vote

0

answers

16

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Multilabel Classification; which network design?

machine-learning python classification cnn

modified 5 hours ago Jordy 6

0

votes

0

answers

4

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Error on custom RNN/LSTM with multiple inputs

deep-learning keras tensorflow cnn lstm

asked 5 hours ago Saikat 101

1

vote

1

answer

33

views

Weighing each label in multi-label classification

multilabel-classification

modified 5 hours ago p0712 22

0

votes

0

answers

4

views

binary cross entropy loss - pixels wise predictions - How error is back propagated?

backpropagation

asked 5 hours ago Guido Salimbeni 8

0

votes

0

answers

7

views

Reflections about types of bias in comparative analysis

data bias

asked 6 hours ago user83771 1

2

votes

1

answer

110

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Data splitting for a binary classification model

machine-learning classification

modified 6 hours ago Community♦ 1

0

votes

1

answer

14

views

Is it common to add noise to Time Series data before training a model

time-series

answered 6 hours ago Leevo 1,562

1

vote

0

answers

10

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Pandas nested/recursive groupby count [on hold]

python pandas

asked 6 hours ago MartinHN 106

-1

votes

1

answer

11

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could not convert string to float

random-forest decision-trees svr

answered 7 hours ago Uday 66

0

votes

0

answers

9

views

ResNet50 Model is not learning with transfer learning in keras

python deep-learning keras convnet transfer-learning

asked 7 hours ago Sree 101

0

votes

1

answer

11

views

When using Absolute Error in Gradient Descent, how to calculate the derivative?

machine-learning regression linear-regression

answered 7 hours ago Philipp 316

1

vote

1

answer

13

views

When would not normalizing input values have higher accuracy?

deep-learning classification normalization deep-network

answered 10 hours ago Djib2011 4,069

1

vote

1

answer

30

views

Hyperparameter tuning and cross validation

machine-learning cross-validation hyperparameter hyperparameter-tuning

modified 12 hours ago jh10 11

0

votes

0

answers

5

views

How to predict the appropriate bidding price for a keyword ad using machine learning?

machine-learning machine-learning-model usecase

asked 13 hours ago DeniseP123 1

2

votes

0

answers

11

views

Rescaling simulations by machine learning

machine-learning neural-network generative-models

modified 15 hours ago Benji Albert 1,035

0

votes

2

answers

18

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Class Imbalance and Cost-Sensitive Learning XGBoost

machine-learning classification data xgboost unbalanced-classes

modified 15 hours ago Benji Albert 1,035

0

votes

0

answers

6

views

Tesseract training- JTessBoxEditor issue

machine-learning visualization image-recognition ocr

asked 16 hours ago Gaurav 1

0

votes

1

answer

15

views

Recommendations to generate a training set of images

dataset object-recognition

answered 16 hours ago Brydon Parker 11

0

votes

2

answers

12

views

What does Conv1d do in a sentiment analysis?

nlp convnet sentiment-analysis

answered 16 hours ago Brydon Parker 11

2

votes

3

answers

21

views

Are stopwords helpful when using tf-idf features for document classification?

nlp tfidf

answered 16 hours ago Brydon Parker 11

1

vote

2

answers

18

views

How to resolve country and nationality entities?

named-entity-recognition stemming

answered 18 hours ago Grzegorz 341

6

votes

5

answers

1k

views

Interactive labeling/annotating of time series data

machine-learning python data labels

answered 19 hours ago daterdots 11

0

votes

0

answers

33

views

'Age' categorical (years -months -days ) to numeric and add a column to say which age group it belongs to [on hold]

data-mining visualization preprocessing data-science-model

modified 20 hours ago user80034 34

0

votes

1

answer

15

views

Synchronizing Multiple Cameras in Autonomous Driving

computer-vision self-driving

answered 23 hours ago Sam Hammamy 113

0

votes

1

answer

40

views

Data Science project idea [on hold]

prediction

answered yesterday Fnguyen 475

0

votes

1

answer

24

views

My network doesnt learn how to memorize noise

neural-network keras

modified yesterday Community♦ 1

1

vote

2

answers

124

views

Bias and Variance definitions [duplicate]

machine-learning deep-learning data-mining

modified yesterday suchi 1

0

votes

1

answer

15

views

How to visualize two small samples with different sizes?

visualization

answered yesterday Maeaex1 76

2

votes

2

answers

321

views

Why Sckit's fit_transform causes a huge drop in accuracy and all other evaluation metrics?

machine-learning deep-learning keras scikit-learn

modified yesterday Community♦ 1

1

vote

1

answer

10

views

Error rate of AdaBoost weak learner always bigger than 0.5?

machine-learning python decision-trees boosting

modified yesterday zachdj 777

1

vote

1

answer

83

views

Impose similar metric on segments to model

machine-learning classification binary

answered yesterday ncasas 4,254

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