### Convert a PAC-learning algorithm into another one which requires no knowledge of the parameter

This is part of a problem in the book Foundations of Machine Learning(page 28). You can refer to chapter 2 for the notations. Consider a family of concept classes $\left\{\mathcal{C}_{s}\right\}_{s}$ where $\mathcal{C}_{s}$ is the set of concepts in $\mathcal{C}$ with size at most $s .$ Suppose we have a PAC-learning algorithm $\mathcal{A}$ that can be…

### Why we multiply probabilities with support to obtain Q-values in Distributional C51 algorithm?

In ‘Deep Reinforcement Learning Hands-On’ book and chapter about Distributional C51 algorithm I’m reading, that to obtain Q-values from the distribution I need to calculate the weighted sum of the normalized distribution and atom’s values. Why I have to multiply that distribution with support? How does it work and what happening there?

### Comparing EEG data with Accelerometer Data in 1 algorithm

I have EEG data as well as accelerometer data and I am trying to figure out how to compare them so I can feed them into one algorithm. Any literature, articles or information will be appreciated greatly. Thanks

### Logistic Regression Weight Training

I am new to machine learning , so please excuse me if I misuse any terms or words . I am trying to use Logistic Regression to make a spam filter, but i am having trouble understanding the weight update part.I have processed my email dataset ,and i have an attribute vector of the top…

### How many ways are there to perform image segmentation?

I’m new in Artificial Intelligence and I want to do image segmentation. Searching I have found this ways: Digital image processing (I have read it in this book: Digital Image Processing, 4th edition). Convolutional neural networks. Is there something else that I can use?

i have a model for solving captcha trained with a dataset but my images are different and i take bad accuracy for my actual data,what should i do?

### What is the need for Auxilliary Decoder in the VAE-GAN?

The below image taken from Tim Sainberg’s GitHub repo (https://github.com/timsainb) shows the structure of a VAE-GAN: My question is about the second row in the diagram. Random samples drawn from z are passed through the decoder to generate fake samples that are also given to the discriminator. I have read from other sources that it…

### What is the need for Auxilliary Decoder in the VAE-GAN?

The below image taken from Tim Sainberg’s GitHub repo (https://github.com/timsainb) shows the structure of a VAE-GAN: My question is about the second row in the diagram. Random samples drawn from z are passed through the decoder to generate fake samples that are also given to the discriminator. I have read from other sources that it…

### What is the need for Auxilliary Decoder in the VAE-GAN?

The below image taken from Tim Sainberg’s GitHub repo (https://github.com/timsainb) shows the structure of a VAE-GAN: My question is about the second row in the diagram. Random samples drawn from z are passed through the decoder to generate fake samples that are also given to the discriminator. I have read from other sources that it…

### Hashing images detects false duplicates

Like I said in the title, I used a code I found to identify duplicate images however there are many false alarms. Can someone give me a link to some code I could use that really works? The problem with the precedent code was that because the underwater images have this bluish color, they are…