We’re rewarding the question askers & reputations are being recalculated! Read more.

Questions tagged [hmm]

The tag has no usage guidance.

9 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2
votes
0answers
39 views

Filtering for Wright-Fisher HMM

I am trying to understand what filter may be suitable for the following HMM: The signal is a Wright-Fisher one-dimensional diffusion characterised by the SDE $$dX_{t}=\frac{1}{2}\left(\alpha(1-x)-\...
2
votes
0answers
79 views

Does the input data have to be passed through the Baum-Welsh function to compute the Viterbi decoder?

I'm using a Hidden Markov Model in order to train an application for gesture recognition. Currently, I have gathered samples, and, using a library have trained these values (They have been passed ...
2
votes
0answers
255 views

Most efficient algorithm for comparing two paths

I'm working with a Continuous Hidden Markov Model, and using the Viterbi Decoder which finds the best possible path for a given sequence. Here is how my algorithm works: ...
1
vote
0answers
1k views

What does the output of Gaussian Mixture Model (GMM) represents in a HMM-GMM based speech recognition application?

Till now I know that- first the speech is converted frames and feature vectors are calculated for each frame using MFCC. And while training the Acoustic model- HMM model is generate for each phoneme ...
1
vote
0answers
211 views

HTK word Recognition

I am using HTK to recognize which word has been said. I am working on 20 words and I have for each of them 10 .wav files. Here are the steps that i followed: 1) get the MFC file for each .wav file ...
0
votes
0answers
19 views

Targets for Deep Neural Network in acoustic model for speech recognition

I'm trying to come up to speed on the use of deep neural networks for speech recognition and I'm confused about what exactly are the targets for the DNN. I understand that the DNN tries to predict a ...
0
votes
0answers
13 views

How to combine multiple HMMs?

What are the techniques to combine together multiple HMMs related to the same process? Mental example: I train 3 different HMMs by observing the behavior of 3 animals. All these HMMs have the same ...
0
votes
0answers
28 views

MFCC-HMM to recognise a single word

I would like to detect how many times a person say a particular words in a sentence. Eg: Count the number of times he say "I" in an hour. Can we just build a "I" Hidden Markov Model(instead of ...
0
votes
0answers
64 views

HMM and non categorical values of emmision (MATLAB)

I read through a tutorial on MATLAB website on HMM. It is not easy to digest so I had to look for other sources and found a good explanation on Wikipedia (HMM). Everything is more understandable but ...