Gulliver¶
Maintainer: Alan Coleman <alanc@udel.edu>
Gulliver is a Generic Utility for Log-Likelihood-based Reconstructions. This project provides base classes for the components that define a generic log-likelihood based reconstruction in IceCube/AMANDA, and as of 2009 also in KM3NET.
A fitter class I3Gulliver
combines these components into a unit that
can be used to obtain a single maximum likelihood fit as obtained by running
the minimizer starting from a given seed. The “maximum log-likelihood”
reconstruction approach in AMANDA/IceCube is explained in more detail
in [Ahrens].
This utility was originally created to facilitate the implementation of standard AMANDA reconstruction methods and to stimulate the experimentation with new reconstruction ideas in an easily configurable and transparent way. It does not intend to accommodate really all possible likelihood-based reconstruction algorithms.
Table of contents
See also
Doxygen documentation, Gulliver modules, Lilliput, FiniteReco, Millipede, Paraboloid.
About the name
Gulliver is a Generic Utility for Log-Likelihood-based Reconstructions. The I, V and E could stand for Ice (or Inspiration), neutrino (\(\nu\) == V) and Everything Else, respectively.
Note
Lemuel Gulliver is the main character in Gulliver’s Travels, a
novel written by Jonathan Swift (1726, amended 1735). Originally,
the idea was to host implementations of each of the base classes in
their own little project, each named after islands and countries in
the same novel, such as Lilliput (inhabited by very small people),
Brobdingnag (inhabited by giants), Houyhnhnm (governed by horses) and
Balnibarbi (mad scientists); but this met with fierce resistance from
the IceRec overlord, so I succumbed, and crammed all implemented
services into the lilliput
project (which was originally only
intended for the minimizer services, for obvious reasons).
Have a look at Project Gutenberg.
References
AMANDA Collaboration (Ahrens et al.). “Muon Track Reconstruction and Data Selection Techniques in AMANDA” In: Nucl.Instrum.Meth. A524 (2004), pp. 169-194. arXiv:astro-ph/0407044