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You're reading from  Hands-On Markov Models with Python

Product typeBook
Published inSep 2018
Reading LevelIntermediate
PublisherPackt
ISBN-139781788625449
Edition1st Edition
Languages
Python
Concepts
Statistics
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Authors (2):
Ankur Ankan
Ankur Ankan
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Ankur Ankan

Ankur Ankan is a BTech graduate from IIT (BHU), Varanasi. He is currently working in the field of data science. He is an open source enthusiast and his major work includes starting pgmpy with four other members. In his free time, he likes to participate in Kaggle competitions.
Read more about Ankur Ankan

Abinash Panda
Abinash Panda
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Abinash Panda

Abinash Panda has been a data scientist for more than 4 years. He has worked at multiple early-stage start-ups and helped them build their data analytics pipelines. He loves to munge, plot, and analyze data. He has been a speaker at Python conferences. These days, he is busy co-founding a start-up. He has contributed to books on probabilistic graphical models by Packt Publishing.
Read more about Abinash Panda

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2D HMMs

A lot of work has been done regarding 2D HMMs, but the most recent work and well-received work has been done by Jia Li, Amir Najmi, and Robert Gray in their paper, Image Classification by a Two Dimensional Hidden Markov Model. This section has been written based on their work. We will start by giving the general algorithm they have introduced, and then, in further subsections, we will see how the algorithm works.

Algorithm

The algorithm for image classification is as follows:

  • Training:
    • Divide the training images into non-overlapping blocks with equal size and extract a feature vector for each block
    • Select the number of states for the 2D HMM
    • Estimate the model parameters based on the feature vectors and the training...
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Hands-On Markov Models with Python
Published in: Sep 2018Publisher: PacktISBN-13: 9781788625449
© 2018 Packt Publishing Limited All Rights Reserved

Authors (2)

author image
Ankur Ankan

Ankur Ankan is a BTech graduate from IIT (BHU), Varanasi. He is currently working in the field of data science. He is an open source enthusiast and his major work includes starting pgmpy with four other members. In his free time, he likes to participate in Kaggle competitions.
Read more about Ankur Ankan

author image
Abinash Panda

Abinash Panda has been a data scientist for more than 4 years. He has worked at multiple early-stage start-ups and helped them build their data analytics pipelines. He loves to munge, plot, and analyze data. He has been a speaker at Python conferences. These days, he is busy co-founding a start-up. He has contributed to books on probabilistic graphical models by Packt Publishing.
Read more about Abinash Panda

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