Crossing Conceptual Boundaries XII, 2022

ISSN: 2041-9090 Crossing Conceptual Boundaries PhD Annual Yearbook New Series Volume XII A peer-reviewed graduate publication, School of Education & Communities, UEL, U

Ranking the Impact of Different Tests on a Hypothesis in a Bayesian Network

Testing of evidence in criminal cases can be limited by temporal or financial constraints or by the fact that certain tests may be mutually exclusive, so choosing the tests that will have maximal impact on the final result is essential. In this paper, we assume that a main hypothesis, evidence for it and possible tests for existence of this evidence are represented in the form of a Bayesian network, and use three different methods to measure the impact of a test on the main hypothesis. We illustrate the methods by applying them to an actual digital crime case provided by the Hong Kong police. We conclude that the Kullback-Leibler divergence is the optimal method for selecting the tests with the highest impact

Cyber Insurance

This volume covers a wide spectrum of issues relating to economic and political development enabled by information and communication technology (ICT)

Development of a Masters module in Computer Forensics and Cybercrime

In mid-2004 it was decided that the list of optional modules available to students taking the MSc programme in Computing, Internet Law and Management at King’s College London should be supplemented with a module in Computer Forensics and Cybercrime. It was proposed that this module should be delivered as a reading course to be assessed by means of a dissertation and a linked viva voce examination. We trace the evolution of this module over the three academic years 2005/6 to 2007/8 inclusive and discuss the range of dissertation topics selected by the students. The results obtained by the students and the evidence from anonymous student feedback surveys are analysed quantitatively. We conclude with a critical assessment of the success of the module in meeting its specified aims and objectives and put forward proposals for its future development

Ab initio calculations of NMR and ESR coupling constants.

In Part I infinitesimal self-consistent field Hartree-Fock perturbation theory is applied to the calculation of the Fermi contact, electron orbital and spin-dipolar contributions to indirect nuclear spin-spin coupling constants in some small closed-shell molecules from ab initio LCAO-MO SCF wavefunctions. The dependence of the calculated values upon the size of Gaussian basis set employed and upon variations in molecular geometry is examined. The circumstances under which the method may be expected to yield results sufficiently reliable for most chemical purposes are indicated. In Part II the ab initio Unrestricted Hartree-Fock method with single spin annihilation is used in the LCAO-MO approximation with minimal Gaussian basis sets of atomic SCF orbitals to evaluate the isotropic and anisotropic electron-nuclear hyperfine coupling constants in some small doublet state free radicals of current experimental interest. This approach is applied to the identification of new radical species and to the elucidation of their molecular structures. In addition, the method is used to check the experimental assignments of hyperfine coupling constants deduced from ESR spectra and to investigate the reliability of Coulson's equation for the estimation of bond angles in triatomic ABA radicals