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Jóan Petur Petersen

Jóan Petur Petersen, Ph. D. student at the Technical University of Denmark (DTU)
at the department of Informatics and
Mathematical
Modelling (DTU Informatics). The Ph. D. project
started on the 1st of September 2009, and is expected to
take three years to complete. Project supervisors are Ole Winther (IMM)
and Dánjal
Jákup Jacobsen (Decision3).
Project description
The purpose of the Ph. D.
project is to develop advanced, data driven mathematical models for
analyzing the dynamics of ocean-going vessels, especially with regard
to modeling fuel efficiency. Traditionally physical models, e.g.
hydrodynamics, the study of motions of liquids, have been used to model
the dynamics and fuel efficiency of ships. However, these models are
limited when it comes to modeling the real-life conditions of
ocean-going vessels.
Therefore, the goal of of this project is to develop powerful models,
based on a machine-learning approach, that are able to adapt to actual
conditions of the ships. Such models require inputs of (large amounts)
of data, containing actual measurements of operational conditions from
vessels.
Current paper in the working
Efficient
Ship Propulsion through Modelling -
This paper is expected
to be finished before the end of this semester. It will present an
accurate system for predicting an ocean going vessels speed and energy
consumption given circumstances. The model however has some drawbacks
especially related to dynamic changes in the controls, which are
discussed.
Software
PyPR
– Python Pattern
Recognition - Part of the
code used for the Ph. D. project has been assembled in a
library called Python Pattern Recognition or PyPR. The code is likely
to be licensed
under GPLv3 or the Python License. PyPR is available on sourceforge, pypr.sourceforge.org.
The project is still in its early
development stages, but some parts can be used now, such as the
back-propagation neural network, K-means clustering, and Expectation
Maximization of Gaussian Mixtures. The library is likely to change much
over the next months, so if you use it in any project, then it would
probably be best just to copy the code into your project until PyPR
becomes more mature.
All feedback is appreciated.
Contact
Email:
joanpeturpetersen_at_gmail.com
Tel: +298 59 15 55
Personal
In my spare time i do some bird watching/photography. I have uploaded
some photos to FaroeNature.
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