How would one design a neural network for the purpose of a recommendation engine. I assume each user would require their own network, but how would you design the inputs and the outputs for recommending an item in a database. Are there any good tutorials or something? Edit: I was more thinking how one would design a network. As in how m...
Are there any benchmarks that can be used to check if implementation of ANN is correct? I want to have some input and output data, and some information like: - The output of Feedforward neural network with 3 layers should be correct in 90% of test data. I need this information to be sure that this kind of ANN is able to deal with such ...
I am doing stock market prediction using ANNs in c#.net. I am using NeuronDotNet for the neural part. I have to give eight inputs to the network, with a hidden layer consisting 8 nodes and a single node output layer. Can anybody please give me some coding ideas for this???? ...
I have trained xor neural network in Matlab and got these weights: iw: [-2.162 2.1706; 2.1565 -2.1688] lw: [-3.9174 -3.9183] b{1} [2.001; 2.0033] b{2} [3.8093] Just from curiosity I have tried to write MATLAB code which computes the output of this network (2 neurons in hidden layer, and 1 in output, TANSIG activation function). C...
We need to decide between Support Vector Machines and Fast Artificial Neural Network for some text processing project. It includes Contextual Spelling Correction and then tagging the text to certain phrases and their synonyms. Which will be the right approach? Or is there an alternate to both of these... Something more appropriate than...
As I have mentioned in previous questions I am writing a maze solving application to help me learn about more theoretical CS subjects, after some trouble I've got a Genetic Algorithm working that can evolve a set of rules (handled by boolean values) in order to find a good solution through a maze. That being said, the GA alone is okay, ...
The best way to learn something in the computer industry is to try and use it for a project that you are working on (Not a high priority or high visibility one of course). Only then will you be forced to read all the relevant documentation, build the DLLs and start calling the code and interpreting the result, etc. As a learning exercis...
Hi, I'm a newbie to the world of ANN. I'm aware of the Gradient Desecent Rule and the Backpropagation Theorem. What I don't get is , when is using a bias important? For example, when mapping the AND function, when i use 2 inputs and 1 output, it does not give the correct weights, however , when i use 3 inputs(1 of which is a bias), it g...
I'm using the AForge library framework and its neural network. At the moment when I train my network I create lots of images (one image per letter per font) at a big size (30 pt), cut out the actual letter, scale this down to a smaller size (10x10 px) and then save it to my harddisk. I can then go and read all those images, creating my ...
I'm after a list of possible neural network implementations that can be experimented with. Possibly something that could take an hour to a week to write. What other possibilities are there? Here's the list so far: Games tic-tac-toe Connect 4 Chess Go Sudoku paper/scissors/rock horse racing predictor Visual recognition Character re...
i plan to use neurodotnet for my phd thesis, but before that i just want to build some small solutions to get used to the dll structure. the first problem that i want to model using backward propagation is height-weight ratio. I have some height and weight data, i want to train my NN so that if i put in some weight then i should get corr...
I have a yes/no classification problem, where false positives are worse than false negatives. Is there a way to implement this fact into neural network especially in MATLAB's Neural Network Toolbox? ...
I have a what I think is a simple machine learning question. Here is the basic problem: I am repeatedly given a new object and a list of descriptions about the object. For example: new_object: 'bob' new_object_descriptions: ['tall','old','funny']. I then have to use some kind of machine learning to find previously handled objects that h...
Simple machine learning question. Probably numerous ways to solve this: There is an infinite stream of 4 possible events: 'event_1', 'event_2', 'event_4', 'event_4' The events do not come in in completely random order. We will assume that there are some complex patterns to the order that most events come in, and the rest of the event...
Hi everybody, I'm looking for mixture of MLP(Multilayer Perceptron) expert matlab's code.could you please help me how i can find it? at least how i can get a MLP's matlab code with high performance! Thanks anybode watch it:-) ...
Hi, I need to develop a flash tutorial on Self organizing maps (in neural networks) to make people understand it easily. I need some good example so that even a beginner can understand it easily. Please help me with some examples, links with simple examples. Thanks in advance ...
Hey, I'm creating a face detection program using neural networks, and looking for some reliable training sets. I'm aware there's various sets around the web, but I've not idea how good they are. Any ideas where to start? Thanks. ...
I tried to write a Neural Network system, but even running through simple AND/OR/NOR type problems, the outputs seem to group around 0.5 (for a bias of -1) and 0.7 (for a bias of 1). It doesn't look exactly "wrong"... The 1,1 in the AND pattern does seem higher than the rest and the 0,0 in the OR looks lower, but they are still all group...
I'm using ruby's ai4r gem, building a neural network. Version 1.1 of the gem allowed me to simply do a Marshal.dump(network) to a file, and I could load the network back up whenever I wanted. With version 1.9 a couple years later, I'm no longer able to do this. It generates this error when I try: no marshal_dump is defined for class...
Hopefully the last NN question you'll get from me this weekend, but here goes :) Is there a way to handle an input that you "don't always know"... so it doesn't affect the weightings somehow? Soo... if I ask someone if they are male or female and they would not like to answer, is there a way to disregard this input? Perhaps by placing ...