Questions tagged [topologies]
The topologies tag has no usage guidance.
18
questions
1
vote
2answers
77 views
In “A Topology Layer for Machine Learning,” are the topological priors learned by the network or imposed by humans?
In this paper by Gabrielsson, Nelson, et al. the authors "present a differentiable topology layer that can, among other things, construct a loss on the output of a deep generative network to ...
2
votes
0answers
30 views
Reference request: Network/graph topology inference
I am a mathematician looking for a survey/book on methods for inference of graph/network topology (structure). Specifically, the kind of problem I am looking to study is as follows:
Given a graph $...
2
votes
0answers
20 views
How to identify manifolds for an optimisation problem
I don't have much experience in topology, but I am interested to know if:
• Given a particular problem and associated cost function, how would one deduce what kind of manifold this problem lies on.
...
4
votes
1answer
345 views
2 hidden layers are more powerful than 1
When searching for information on choosing the number of hidden layers in a neural network, I have come across the following table mutiple times, including in this answer:
| Number of Hidden Layers ...
0
votes
1answer
97 views
Optimising neural network to prevent overfitting
I'm looking for some advice on a general approach to optimise the training of a neural network. My primary concern is to avoid over-fitting to the training data and maintain as much generality as ...
1
vote
0answers
345 views
Neural networks, mapping features to polar coordinates to deal with uncertain inputs
Let's say you've got a neural network which takes in a vector of real numbers as input. Additionally, let's say you're uncertain about the values of some components of the vector, and your level of ...
2
votes
1answer
69 views
Visualizing model trajectories for Neural Networks using function approximator
Erhan et al. in their 2010 paper discusses how pre-training improves deep networks: http://www.jmlr.org/papers/volume11/erhan10a/erhan10a.pdf#page=15
In there, they compare different neural network ...
1
vote
1answer
273 views
Deep learning with global connections/correlations
Deep learning for 1D/2D inputs usually assume some sort of local connections, whether it is using local filters, or recurrent connections etc. What if for our problem we think a connection between ...
6
votes
1answer
244 views
Cases where TDA outperforms public benchmarks?
Precise Question
What are some specific examples where topological data analysis (TDA) outperforms other models on publicly available data?
Context
When new ML algorithms are developed, it seems ...
11
votes
2answers
933 views
Graphical intuition of statistics on a manifold
On this post, you can read the statement:
Models are usually represented by points $\theta$ on a finite dimensional
manifold.
On Differential Geometry and Statistics by Michael K Murray and ...
1
vote
0answers
56 views
Difference between FFNN and NAR
What is the difference between feed forward neural network and non-linear autoregressive neural network. Do they have same structure. What is the difference in their equation
2
votes
0answers
27 views
Analysis techiques for logical topologies
I'm working in the area of analysis of logical computer systems (e.g https://goo.gl/images/KyLCCo). Specifically in the field of anomaly detection of these systems.
I was thinking about the field of ...
3
votes
0answers
83 views
Topology of Confidence Intervals
I hope this is the right site to post this.
The example I have in my mind is a GLMM model, where we infer random effects, and a random effect caterpillar plot (with confidence intervals):
Now, ...
9
votes
1answer
208 views
Topologies for which the ensemble of probability distributions is complete
I have been struggling quite a bit with reconciling my intuitive understanding of probability distributions with the weird properties that almost all topologies on probability distributions possess.
...
1
vote
0answers
40 views
ART neural network disambiguation
I have an assignment to implement the adaptive resonance theory (ART) type network (as part of a bigger project). I have red a lot of Internet resources on the topic and I think I've got the essence ...
7
votes
1answer
200 views
Laplacian-Beltrami approximation based on an empirical sample
Given a probability measure $\nu$ on a subset $M \subseteq \mathbb{R}^N$ we construct the corresponding operator
$$L^tf(x)=f(x)\int_{M} e^{-\frac{||x-y||^2}{4t}}d\nu(y)-\int_{M}f(y)e^{-\frac{||x-y||^...
4
votes
2answers
2k views
Where can I get real data of big network topology? [closed]
I want to model how traffic will flow on real networks (not just the internet, also, say, Intel's internal LAN).
Is there a place I can get real network topologies data I can use?
58
votes
3answers
52k views
What's the difference between feed-forward and recurrent neural networks?
What is the difference between a feed-forward and recurrent neural network?
Why would you use one over the other?
Do other network topologies exist?
