Essays about: "HMM"

Showing result 21 - 25 of 65 essays containing the word HMM.

1. 21. Speech recognition for telephone conversations in Icelandic using Kaldi

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Thorsteinn Dadi Gunnarsson; [2019]
   Keywords : ;

   Abstract : In this thesis we train and evaluate an Automatic Speech Recognition system for phone communication in Icelandic. We use Kaldi, an open source toolkit, to build both GMM-HMM and Neural Network based models for general speech recognition in Icelandic. READ MORE

3. 22. A comparative study between algorithms for time series forecasting on customer prediction : An investigation into the performance of ARIMA, RNN, LSTM, TCN and HMM

   University essay from Högskolan i Skövde/Institutionen för informationsteknologi

   Author : Olof Almqvist; [2019]
   Keywords : machine learning; deep learning; time series forecasting; time series regression; data science; prediction; crisp-dm; keras; markov model; neural network; exploratory data analysis; maskininlärning; djupinlärning; tidsserieprediktion; tidsserieprognos; neurala nätverk; markovmodell; explorativ dataanalys; dataanalys;

   Abstract : Time series prediction is one of the main areas of statistics and machine learning. In 2018 the two new algorithms higher order hidden Markov model and temporal convolutional network were proposed and emerged as challengers to the more traditional recurrent neural network and long-short term memory network as well as the autoregressive integrated moving average (ARIMA). READ MORE

4. 23. Supersonic Retro Propulsion Flight Vehicle Engineering of a Human Mission to Mars

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Hanna Marklund; [2019]
   Keywords : Supersonic retro propulsion; SRP; Mars; Human mission; Inflatable heat shield;

   Abstract : A manned Mars mission will require a substantial increase in landed mass compared to previous robotic missions, beyond the capabilities of current Entry Descent and Landing, EDL, technologies, such as blunt-body aeroshells and supersonic disk-gap-band parachutes. The heaviest payload successfully landed on Mars to date is the Mars Science Laboratory which delivered the Curiosity rover with an approximate mass of 900 kg. READ MORE

5. 24. A Multi-Target Graph-Constrained HMM Localisation Approach using Sparse Wi-Fi Sensor Data

   University essay from KTH/Optimeringslära och systemteori

   Author : Simon Danielsson; Jakob Flygare; [2018]
   Keywords : Hidden Markov Model; Localisation; Wi-Fi Sensors; Forward-Backward Algorithm; Baum-Welch Algorithm; Machine Learning; Time Series Analysis.; Hidden Markov Model; Lokalisering; Wi-Fi Sensorer; Forward-Backward Algoritm; Baum-Welch Algoritm; Maskinlärning; Tidsserieanalys.;

   Abstract : This thesis explored the possibilities of using a Hidden Markov Model approach for multi-target localisation in an urban environment, with observations generated from Wi-Fi sensors. The area is modelled as a network of nodes and arcs, where the arcs represent sidewalks in the area and constitutes the hidden states in the model. READ MORE

6. 25. Feature Analysis in Online Signature Verification on Digital Whiteboard : An analysis on the performance of handwritten signature authentication using local and global features with Hidden Markov models

   University essay from KTH/Skolan för datavetenskap och kommunikation (CSC)

   Author : Simon Olander Sahlén; [2018]
   Keywords : signature; machine learning; hmm; online; verification; hidden markov model; whiteboard; wall; wallrite; hand written; written;

   Abstract : The usage of signatures for authentication is widely accepted, and remains one of the most familiar biometric in our society. Efforts to digitalise and automate the verification of these signatures are hot topics in the field of Machine Learning, and a plethora of different tools and methods have been developed and adapted for this purpose. READ MORE