Questions tagged [reshape]

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2answers
33 views

Data Reshaping for CNN using Keras

I'm a beginner in Keras. I've loaded MNIST dataset in Keras and checked it's dimension. The code is ...
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1answer
20 views

how to create multiple plot from a panda Dataframe

I want to plot multiple plots. The data is stored in a pandas dataframe and each row should be a seperate plot. Each row has an ID (ZRD_ID) which doenst matter and a date (TAG) and 24 values to be ...
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1answer
35 views

Word Embeddings with TFIDF vectorizer

I am a beginner in machine learning. I have a large corpus of texts, divided into thematic groups. I would like to get idf values for the whole corpus, and then apply it on each group before ...
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0answers
12 views

ValueError when reshaping to 4 dim array for the Keras API

DL beginner here. I'm trying to implement LeNet using Keras and apply it on good ol' MNIST. ...
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1answer
29 views

numpy array reshape question

Let's say that I have image data with shape $(32, 32, 3)$ and $50000$ If I would like to reshape it to $(50000, 3, 32, 32)$ what should I do? I tried ...
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0answers
17 views

Tensor Shape 'Reshape' during the dataflow

I would like to combine an Autoencoder with a LSTM. However, the 'timestep' is a block for the implements and I would like to train them together. Is there a solution to the tensor 'reshape'? I mean, ...
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1answer
36 views

What is the difference between different batch_sizes in Keras Sequential models?

I am interested to know, what happens when I choose batch_size=1 or batch_size=1000 or any other numbers in ...
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1answer
284 views

keras Sequential CNN for image data reshaping data issues

I am new at keras and CNN and am working on building at CNN for sequential analysis of movement in a image. What I am having issues with is the reshaping the data and the labels that go into the ...
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1answer
1k views

Keras input shape error

I am trying to load a Keras model and make predictions with it and run into a strange error. An minimal example is the following: ...
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1answer
90 views

Is the multilayer perceptron only able to accept 1d vector of input data? If yes, why is this so?

I am going through the tutorial at the link below which uses MNIST handwritten digit database. https://machinelearningmastery.com/handwritten-digit-recognition-using-convolutional-neural-networks-...
5
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1answer
5k views

Please explain input shape in Keras

My data consists of 2-dimensional arrays with shape (2,3). The whole dataset (emp) consists of 12 items (I know that it is too small of a number for an NN training, ...
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1answer
3k views

Are view() in Pytorch and reshape() in Numpy similar?

Are view() in torch and reshape() in Numpy similar? view() is applied on torch tensors to ...
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1answer
290 views

Reshape features in rows intro columns python?

My features are arranged in rows, Can anyone tell me please how can I transform them into columns with theirs corresponding times and values?? I mean each features has a set of corresponding times and ...
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1answer
645 views

Predictions with arbitrairy sequence length for stateful RNN (LSTM/GRU) in Keras

I have time series data of the following properties: input shape: (num_timesteps, num_features) output shape: (num_timesteps, num_outputs) I reshape it to batch ...
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4answers
2k views

rows to columns in data.table R (or Python)

This is something I can't achieve with the reshape2 library for R. I have the following data: ...