BACKGROUND Hypothesis tests are statistical tools widely used for assessing whether or not there is an association between two or more variables. These tests provide a probability of the type 1 error (p-value), which is used to accept or reject the null study hypothesis. OBJECTIVE To provide a practical guide to help researchers carefully select the most appropriate procedure to answer the re...

Stable angina pectoris is characterised by typical exertional chest pain that is relieved by rest or nitrates. Risk stratification of patients is important to define prognosis, to guide medical management and to select patients suitable for revascularisation. Medical treatment aims to relieve angina and prevent cardiovascular events. Beta blockers and calcium channel antagonists are first-line ...

We present a machine learning approach to evaluating the wellformedness of output of a machine translation system, using classifiers that learn to distinguish human reference translations from machine translations. This approach can be used to evaluate an MT system, tracking improvements over time; to aid in the kind of failure analysis that can help guide system development; and to select amon...

This application note, which is the first of a two-part series, explains the basics of different SMPS topologies. Applications of different topologies and their pros and cons are also discussed in detail. This application note will guide the user to select an appropriate topology for a given application, while providing useful information regarding selection of electrical and electronic compone...

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To select the right biometric for your situation, you will need to navigate through some complex vendor products and keep an eye on future developments in technology and standards. Your options have never been more diverse. After years of research and development, vendors now have several products to offer. Some are relatively immature, having only recently become commercially available, but ev...

This work focuses on obtaining an automatic presentation generator for a robot guide. The most important aspect of this proposal is that the design uses learning as the means to optimize the quality of the presentations. This fuzzy system is used to select the most appropriate group of paragraphs for a presentation. The beliefs of the robot continue evolving in order to coincide with the opinio...

Requirements engineers can make use of a great many techniques to elicit user needs. However, there is no comprehensive practical guide on how to select the best techniques for a particular contextual situation within a software development project. We propose a framework to support developer decision making on which are the best elicitation techniques for the project at hand. Our framework ide...