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wacax's user avatar
wacax's user avatar
wacax
  • Member for 8 years, 5 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?

9 votes
Accepted

Ratio between embedded vector dimensions and vocabulary size

9 votes
Accepted

Should I rescale tfidf features?

9 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?

3 votes
Accepted

Not enough memory for operations with Pandas

3 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