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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Adopting Agile Practices When Developing Software For Use In The Medical Domain, Martin Mchugh, Fergal Mccaffery, Valentine Casey May 2014

Adopting Agile Practices When Developing Software For Use In The Medical Domain, Martin Mchugh, Fergal Mccaffery, Valentine Casey

Articles

Non-safety critical software developers have been reaping the benefits of adopting agile practices for a number of years. However, developers of safety critical software often have concerns about adopting agile practices. Through performing a literature review, this research has identified the perceived barriers to following agile practices when developing medical device software. A questionnaire based survey was also conducted with medical device software developers in Ireland to determine the barriers to adopting agile practices. The survey revealed that half of the respondents develop software in accordance with a plan driven software development lifecycle and that they believe that there are …


Investigating Automatic Measurements Of Prosodic Accommodation And Its Dynamics In Social Interaction, Celine De Looze, Stefan Scherer, Brian Vaughan, Nick Campbell Mar 2014

Investigating Automatic Measurements Of Prosodic Accommodation And Its Dynamics In Social Interaction, Celine De Looze, Stefan Scherer, Brian Vaughan, Nick Campbell

Articles

Spoken dialogue systems are increasingly being used to facilitate and enhance human communication. While these interactive systems can process the linguistic aspects of human communication, they are not yet capable of processing the complex dynamics involved in social interaction, such as the adaptation on the part of interlocutors. Providing interactive systems with the capacity to process and exhibit this accommodation could however improve their efficiency and make machines more socially-competent interactants.

At present, no automatic system is available to process prosodic accommodation, nor do any clear measures exist that quantify its dynamic manifestation. While it can be observed to be …


H-Index For Quantifying The Fractal Or Scaling Structure Of Geographic Features, Bin Jiang, Junjun Yin Jan 2014

H-Index For Quantifying The Fractal Or Scaling Structure Of Geographic Features, Bin Jiang, Junjun Yin

Articles

Although geographic features, such as mountains and coastlines, are fractal, some studies have claimed that the fractal property is not universal. This claim, which is dubious, is mainly attributed to the strict definition of fractal dimension as a measure or index for characterizing the complexity of fractals. In this article, we propose an alternative, ht-index, to quantify the fractal or scaling structure of geographic features. A geographic feature has ht-index (h) if the pattern of far more small things than large ones recurs (h – 1) times at different scales. The higher the ht-index, the more complex …


The Efficacy Of Cybersecurity Regulation, David Thaw Jan 2014

The Efficacy Of Cybersecurity Regulation, David Thaw

Articles

Cybersecurity regulation presents an interesting quandary where, because private entities possess the best information about threats and defenses, legislatures do – and should – deliberately encode regulatory capture into the rulemaking process. This relatively uncommon approach to administrative law, which I describe as Management-Based Regulatory Delegation, involves the combination of two legislative approaches to engaging private entities' expertise. This Article explores the wisdom of those choices by comparing the efficacy of such private sector engaged regulation with that of a more traditional, directive mode of regulating cybersecurity adopted by the state legislatures. My analysis suggests that a blend of these …


Surveillance At The Source, David Thaw Jan 2014

Surveillance At The Source, David Thaw

Articles

Contemporary discussion concerning surveillance focuses predominantly on government activity. These discussions are important for a variety of reasons, but generally ignore a critical aspect of the surveillance-harm calculus – the source from which government entities derive the information they use. The source of surveillance data is the information "gathering" activity itself, which is where harms like "chilling" of speech and behavior begin.

Unlike the days where satellite imaging, communications intercepts, and other forms of information gathering were limited to advanced law enforcement, military, and intelligence activities, private corporations now play a dominant role in the collection of information about individuals' …


Enlightened Regulatory Capture, David Thaw Jan 2014

Enlightened Regulatory Capture, David Thaw

Articles

Regulatory capture generally evokes negative images of private interests exerting excessive influence on government action to advance their own agendas at the expense of the public interest. There are some cases, however, where this conventional wisdom is exactly backwards. This Article explores the first verifiable case, taken from healthcare cybersecurity, where regulatory capture enabled regulators to harness private expertise to advance exclusively public goals. Comparing this example to other attempts at harnessing industry expertise reveals a set of characteristics under which regulatory capture can be used in the public interest. These include: 1) legislatively-mandated adoption of recommendations by an advisory …


Towards A Computational Analysis Of Probabilistic Argumentation Frameworks, Pierpaolo Dondio Jan 2014

Towards A Computational Analysis Of Probabilistic Argumentation Frameworks, Pierpaolo Dondio

Articles

In this paper we analyze probabilistic argumentation frameworks (PAFs), defined as an extension of Dung abstract argumentation frameworks in which each argument n is asserted with a probability p(n). The debate around PAFs has so far centered on their theoretical definition and basic properties. This work contributes to their computational analysis by proposing a first recursive algorithm to compute the probability of acceptance of each argument under grounded and preferred semantics, and by studying the behavior of PAFs with respect to reinstatement, cycles and changes in argument structure. The computational tools proposed may provide strategic information for agents selecting the …