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Data Science : Recent Questions and Answers (Page 314)

Find answers to your questions about Data Science or help others by answering their Data Science questions.

Input for LSTM for financial time series directional prediction

I'm working on using an LSTM to predict the direction of the market for the next day. My question concerns the input for the LSTM. My data is a...

Asked on 10/05/2020 by articuno

1 answer

Can i expect good results having low correlation attributes?

This was a question i saw in an interview for a data scientist position: "Here is the following correlation heatmap that i got from my attributes. Regarding the correlation of...

Asked on 10/05/2020

2 answer

Dealing with high dimensionality datasets

I have data of dimensionality (25000, 100, 500) i.e. 25000 rows each consisting of a 2 dimensional 100 X 500 matrix. Currently I am only applying CNN for classification purpose....

Asked on 10/03/2020 by user75252

0 answer

ANN regression accuracy and loss stuck

I have a data set on predicting solar power generation,the dataset has 20 independent var and 1 dependent. The accuracy of my model is stuck at 60%. I have tried...

Asked on 10/03/2020 by Anant Gupta

1 answer

Comparing AUC, logloss and accuracy scores between models

I have the following evaluation metrics on the test set, after running 6 models for a binary classification problem: accuracy logloss AUC1 19% ...

Asked on 10/02/2020

1 answer

Multi-class Classification with Sigmoid Activation at Output Layer

In multi-class classification (mutually exclusive classes) using Neural Networks (ANN), it is generally advised that we encode our target labels as one-hot, use a softmax layer as the output with...

Asked on 10/02/2020 by Ricky Sanjaya

0 answer

Machine Learning algorithm for detecting anomalies in large sets of events

Let's start with the following hypothetical preconditions:There is traffic: normal and anomaly. Each traffic sample contains a list of events (of variable size)Events happen in order, the possible events set...

Asked on 10/01/2020 by Denis Rozimovschii

2 answer

Normalizing data of different observation points

I want to normalize my data, but I am too stuck with the specifics of it. I have observations in weekly intervals from different groundwater wells, and as expected they...

Asked on 10/01/2020 by Burak Özmen

0 answer

How to combine categorical and continuous input features for neural network training

Suppose we have two kinds of input features, categorical and continuous. The categorical data may be represented as one-hot code A, while the continuous data is just a vector B...

Asked on 09/30/2020 by JunjieChen

3 answer

CNN for Coordinates Prediction

I am working on a CNN to detect body parts (Right Shoulder, Left Shoulder), something more like Facial Keypoints Detection. I tried solutions from Kaggle as I...

Asked on 09/30/2020 by Karam Abo Ghalieh

0 answer

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