Search results for "MVAR"
showing 2 items of 12 documents
Software Startups – A Research Agenda
2016
Software startup companies develop innovative, software-intensive products within limited timeframes and with few resources, searching for sustainable and scalable business models. Softwarestartups are quite distinct from traditional mature software companies, but also from micro-,small-, and medium-sized enterprises, introducing new challenges relevant for software engineeringresearch. This paper’s research agenda focuses on software engineering in startups, identifying,in particular, 70+ research questions in the areas of supporting startup engineering activities,startup evolution models and patterns, ecosystems and innovation hubs, human aspects in softwarestartups, applying startup conc…
A Multi-Variate Predictability Framework to Assess Invasive Cardiac Activity and Interactions during Atrial Fibrillation
2017
Objective: This study introduces a predictability framework based on the concept of Granger causality (GC), in order to analyze the activity and interactions between different intracardiac sites during atrial fibrillation (AF). Methods: GC-based interactions were studied using a three-electrode analysis scheme with multi-variate autoregressive models of the involved preprocessed intracardiac signals. The method was evaluated in different scenarios covering simulations of complex atrial activity as well as endocardial signals acquired from patients. Results: The results illustrate the ability of the method to determine atrial rhythm complexity and to track and map propagation during AF. Conc…