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Questions tagged [neural-networks]

Questions related to mathematical aspects of neural networks including approximation properties, optimization, expressive power, algorithmic aspects etc.

3 votes
0 answers
201 views

The curse of dimensionality of the Kolmogorov–Arnold neural network

The Kolmogorov–Arnold neural networks (KAN), Ziming Liu et al., KAN: Kolmogorov–Arnold Networks is inspired by the Kolmogorov–Arnold representation theorem (KA theorem). Though it is not proved in the ...
Hans's user avatar
  • 2,229
4 votes
1 answer
357 views

Difference between deep neural networks and expectation maximization algorithm

Having had a short encounter with deep neural networks, it seems to boil down to the task of determining the values of a vast amount of parameters. The expectation maximization algorithm, of which I ...
Manfred Weis's user avatar
  • 12.8k
1 vote
0 answers
79 views

Approximation of continuous function by multilayer Relu neural network

For continuous/holder function $f$ defined on a compact set K, a fix $L$ and $m_1,m_2,\dots,m_L$, can we find a multilayer Relu fully connected network g with depth $L$ and each $i$-th layer has width ...
Hao Yu's user avatar
  • 781
2 votes
0 answers
81 views

Neural network quantization and arithmetic on affine functions

I'm trying to understand the basics of quantization in Neural networks. Quantization tries to convert a neural network that uses floating point arithmetic to one that uses a lower precision integer ...
anirudh's user avatar
  • 121
17 votes
3 answers
938 views

Neural networks over gadgets other than $\mathbb{R}$

Recently, I learned that neural networks (NN) can be defined over fields other than $\mathbb{R}$: for example, Khrennikov and Tirozzi wrote a paper in 1999 (!) on $p$-adic neural networks, or neural ...
xuq01's user avatar
  • 1,056
4 votes
1 answer
283 views

Using a poset or directed graph as input for a neural network

I'm not sure if this is the right community to post this in but I would appreciate any help. As the title states, I'm trying to train a neural network using some unconventional input. I'm wondering if ...
Elias Karnoub's user avatar
11 votes
1 answer
798 views

Abstract mathematical concepts/tools appeared in machine learning research

I am interested in knowing about abstract mathematical concepts, tools or methods that have come up in theoretical machine learning. By "abstract" I mean something that is not immediately related to ...
10 votes
1 answer
413 views

How sensitive are Neural Networks to weight change?

Let's consider the space of feedforward neural networks with a given structure: $L$ layers, $m$ neurons per layer, ReLu activation, input dimension $d$, output dimension $k$. Which means I'm ...
Alfred's user avatar
  • 889
7 votes
1 answer
913 views

Universal approximation theorem for whole $\mathbb{R}^d$

The well-known universal approximation theorem states that neural network with one hidden layer can approximate any continuous function on every compact subset of $\mathbb{R}^d$. My question is ...
almnagako's user avatar
  • 361
29 votes
1 answer
4k views

Is there any paper which summarizes the mathematical foundation of deep learning?

Is there any paper which summarizes the mathematical foundation of deep learning? Now, I am studying about the mathematical background of deep learning. However, unfortunately I cannot know to what ...
almnagako's user avatar
  • 361
23 votes
2 answers
2k views

Structures of the space of neural networks

A neural network can be considered as a function $$\mathbf{R}^m\to\mathbf{R}^n\quad \text{by}\quad x\mapsto w_N\sigma(h_{N-1}+w_{N-1}\sigma(\dotso h_2+w_2\sigma(h_1+w_1 x)\dotso)),$$ where the $w_i$ ...
pglpm's user avatar
  • 333
94 votes
14 answers
14k views

Deep learning / Deep neural nets for mathematician

I am interested in finding out the math ideas behind the technologies that are under the umbrella of "Deep Learning" or "Deep neural nets". Most of the papers/books that are often quoted in papers/...
30 votes
6 answers
11k views

Mathematics for machine learning

I would like to know what mathematics topics are the most important to learn before actually studying the theory on neural networks. I ask that because I will start to learn about neural networks and ...
marcosdecarvalho's user avatar