Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 327

Randomforest parameter tuning R(caret) and Python(scikit learn)?

Question: is it possible, or even necessary, to perform a cross-validation check to tune the parameters of a Python randomforest implementation (eg scikit learn) when training a new model, as...

Asked on 08/06/2020

1 answer

Minimize correlation between input and output of black box system

I am not sure if "minimize correlation" is the right title for this issue but I could not find a better sentence to describe what I would like to achieve....

Asked on 08/06/2020

1 answer

" loss: nan - accuracy: 0.0000e+00 - mae: nan " for all epochs while training my Neural network

Background:I made a simple game using python library 'Turtle' in which there is a long plank with a ball balanced on top of it. I can press right or...

Asked on 08/06/2020 by Aryan Sethi

0 answer

How to normalise(?) an [x,y] time series data set

Problem: I'm currently parsing a time series dataset, of [x,y] coordinates. The data isn't complete - it contains gaps and jitter, and I would like to fill these gaps /...

Asked on 08/06/2020 by Nick Grealy

0 answer

How to infer which sequence of events are more likely to result in an event of interest?

Background I have a sequence/series of events. Some sequences will end up with an event of interest $y$, while others won't. $$S_1 = [a, b, c, d, ...,...

Asked on 08/04/2020

0 answer

Confusion with using different classes in neural networks (training vs testing)

I am new to deep learning and I am confused about having a neural network trained on certain classes and tested on different ones. Suppose I want to have a...

Asked on 08/04/2020 by Myth

2 answer

Tensorflow MirroredStrategy() looks like it may only be working on one GPU?

I finally got a computer with 2 gpus, and tested out https://pytorch.org/tutorials/beginner/blitz/data_parallel_tutorial.html and https://github.com/tensorflow/models/tree/master/tutorials/image/cifar10_estimator and confirmed that both gpus are being utilized in each(The...

Asked on 08/04/2020 by sectechguy

1 answer

How to get a output of a hidden layer of a single-layer LSTM

How can get the hidden layer outputs in a simple one-layer lstm?cat("Building Modeln") ...

Asked on 08/04/2020 by BlueGirl

1 answer

Does an RL agent learn during exploitation?

I have started with RL and have some doubts regarding it.Does an RL agent learn during exploitation, or does it only learn during exploration?Is it possible to train a model...

Asked on 08/03/2020 by cvg

2 answer

Twitter POS and NER: What is state-of-the-art?

What is the current state-of-the-art for pos tagging and named entity recognition for twitter data? Are industrial-strength programs like Spacy and SparkNLP accurate for such texts? How about FlairNLP and...

Asked on 08/02/2020 by SanMelkote

1 answer

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