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wacax's user avatar
wacax's user avatar
wacax
  • Member for 9 years, 2 months
  • Last seen more than 3 years ago
43 votes

xgboost: give more importance to recent samples

42 votes
Accepted

Hypertuning XGBoost parameters

34 votes
Accepted

How to prepare/augment images for neural network?

14 votes
Accepted

Purpose of visualizing high dimensional data?

13 votes
Accepted

Why should we use (or not) dropout on the input layer?

10 votes
Accepted

Ratio between embedded vector dimensions and vocabulary size

10 votes
Accepted

Should I rescale tfidf features?

10 votes

Is there any domain where Spiking Neural Networks outperform other algorithms (non-spiking)?

6 votes

Keras neural network entirely different results on two different hardwares (one is AWS)

5 votes

How to normalize data without knowing the min and max values?

4 votes
Accepted

Not enough memory for operations with Pandas

4 votes
Accepted

Is there any implementation of Extended Isolation Forest algorithm in R/Python?

3 votes
Accepted

What's The Difference Between The Terms Predictor And Feature

3 votes
Accepted

Dummy coding a column in R with multiple levels

3 votes

What are the best ways to tune multiple parameters?

3 votes
Accepted

Web services to mine the social web?

3 votes
Accepted

Code Vectorization of gsub in R

2 votes
Accepted

Domain-specific data science programs

2 votes

How do I setup a server in the cloud for machine learning?

2 votes
Accepted

What's a good machine learning algorithm for low frequency trading?

2 votes
Accepted

What should be the ratio of True vs False cases in a binary classifier dataset?

2 votes

How Do I Find the Matthews Correlation Coefficient (MCC) in Python?

2 votes
Accepted

Financial Time Series data normalization

1 vote

How to extract keywords from a list of URLs?

1 vote

Tagging Unix/Non-Unix logs using NLP

1 vote
Accepted

Visualizing software metrics

1 vote

What are the online platforms that cater to freelance data scientists looking for work?

1 vote

How to merge personalized models together

1 vote

Can LSTM Predict The Next Few Days Of Stock Price?

1 vote

Cosine similarity or logistic regression for spam filtering