### What are the current tools and techniques for image segmentation in order of pragmatism?

To explain what I mean I’ll depict the two extremes and something in the middle. 1) Most pragmatic: If you need to just segment a few images for a design project, forget AI. Go into Adobe Photoshop and hand select the outline of the object you need to extract. 2) Middle ground: If you need…

### Why is exp used in encoder of VAE instead of using the value of standard deviation alone?

There’s one VAE example here: https://towardsdatascience.com/teaching-a-variational-autoencoder-vae-to-draw-mnist-characters-978675c95776 And the source code of encoder: https://gist.github.com/FelixMohr/29e1d5b1f3fd1b6374dfd3b68c2cdbac#file-vae-py The author is using exp (natural exponential) for calculating values of the embedding vector: $z = Mean + Random \times e^{StandardDeviation}$ z = mn + tf.multiply(epsilon, tf.exp(sd)) It’s not related to the code (practical programming), but why using natural exponential instead of:…

### How do I train a multiple-speaker model (speech synthesis) based on Tacotron 2 and espnet?

I’m new to Speech Synthesis & Deep Learning. Recently, I got a task as described below: I have problem in training a multi-speaker model which should be created by Tacotron2. And I was told I can get some ideas from espnet, which is a end-to-end audio tools library. In this way, I found a good…

### How do I train a multiple-speaker model (speech synthesis) based on Tacotron 2 and espnet?

I’m new to Speech Synthesis & Deep Learning. Recently, I got a task as described below: I have problem in training a multi-speaker model which should be created by Tacotron2. And I was told I can get some ideas from espnet, which is a end-to-end audio tools library. In this way, I found a good…

### How do I train a multiple-speaker model (speech synthesis) based on Tacotron 2 and espnet?

I’m new to Speech Synthesis & Deep Learning. Recently, I got a task as described below: I have problem in training a multi-speaker model which should be created by Tacotron2. And I was told I can get some ideas from espnet, which is a end-to-end audio tools library. In this way, I found a good…

### Capacity of a Neural Network

Is it possible to estimate the capacity of a Neural Network model? If so, what are the techniques?

### Training accuracy vs validation accuracy on deep models

I’m training a deep network in Keras on some images for a binary classification (I have around 12K images). Once in a while, I collect some false positives and add them to my training sets and re-train for higher accuracy. I split my training into 20/80 percent for training/validation sets. Now my question is which…

### Backpropagation and PID

In backpropagation, the update rule for the weights is based on the derivative of some loss function. This is similar to the “proportional” aspect of a PID loop controller, where some control variable is adjusted in proportion to the error, which to me appears equivalent to having a squared error loss. However, I do not…

### Interpolating image to increase resolution before feeding it to a neural network

Interpolation is a common way to make an image fit the right input shape for a neural network. But is there any point in using interpolation to make it easier for the network to learn? I assume interpolation adds no extra information to the input; It only uses existing information to increase the resolution and…

### does anyone worked with UE4 engine with NDDS plugin? for creating custom dataset!

I am currently working in a custom dataset problem for 6D pose estimation using CNN