877 resultados para decision analysis


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Presentation to the Disability Studies Conference, Lancaster University, September 7-9, 2010.

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Background and objective: In this paper, we have tested the suitability of using different artificial intelligence-based algorithms for decision support when classifying the risk of congenital heart surgery. In this sense, classification of those surgical risks provides enormous benefits as the a priori estimation of surgical outcomes depending on either the type of disease or the type of repair, and other elements that influence the final result. This preventive estimation may help to avoid future complications, or even death. Methods: We have evaluated four machine learning algorithms to achieve our objective: multilayer perceptron, self-organizing map, radial basis function networks and decision trees. The architectures implemented have the aim of classifying among three types of surgical risk: low complexity, medium complexity and high complexity. Results: Accuracy outcomes achieved range between 80% and 99%, being the multilayer perceptron method the one that offered a higher hit ratio. Conclusions: According to the results, it is feasible to develop a clinical decision support system using the evaluated algorithms. Such system would help cardiology specialists, paediatricians and surgeons to forecast the level of risk related to a congenital heart disease surgery.

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In today's internet world, web browsers are an integral part of our day-to-day activities. Therefore, web browser security is a serious concern for all of us. Browsers can be breached in different ways. Because of the over privileged access, extensions are responsible for many security issues. Browser vendors try to keep safe extensions in their official extension galleries. However, their security control measures are not always effective and adequate. The distribution of unsafe extensions through different social engineering techniques is also a very common practice. Therefore, before installation, users should thoroughly analyze the security of browser extensions. Extensions are not only available for desktop browsers, but many mobile browsers, for example, Firefox for Android and UC browser for Android, are also furnished with extension features. Mobile devices have various resource constraints in terms of computational capabilities, power, network bandwidth, etc. Hence, conventional extension security analysis techniques cannot be efficiently used by end users to examine mobile browser extension security issues. To overcome the inadequacies of the existing approaches, we propose CLOUBEX, a CLOUd-based security analysis framework for both desktop and mobile Browser EXtensions. This framework uses a client-server architecture model. In this framework, compute-intensive security analysis tasks are generally executed in a high-speed computing server hosted in a cloud environment. CLOUBEX is also enriched with a number of essential features, such as client-side analysis, requirements-driven analysis, high performance, and dynamic decision making. At present, the Firefox extension ecosystem is most susceptible to different security attacks. Hence, the framework is implemented for the security analysis of the Firefox desktop and Firefox for Android mobile browser extensions. A static taint analysis is used to identify malicious information flows in the Firefox extensions. In CLOUBEX, there are three analysis modes. A dynamic decision making algorithm assists us to select the best option based on some important parameters, such as the processing speed of a client device and network connection speed. Using the best analysis mode, performance and power consumption are improved significantly. In the future, this framework can be leveraged for the security analysis of other desktop and mobile browser extensions, too.

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From the Preface. Pursuant to Article 13(3) of Council Decision 2010/427/EU of 26 July 2010 establishing the organisation and functioning of the European External Action Service, the High Representative is held to provide a review of the organisation and functioning of the EEAS by mid-­‐2013. This review will cover, inter alia, the implementation of Article 6(6), (8) and (11), so as to ensure an adequate geographical and gender balance and a meaningful presence of nationals from all member states in the EEAS. If necessary, the review will be accompanied by appropriate proposals for the revision of the 2010 Council Decision (e.g., suggestions for additional specific measures to correct possible imbalances of staffing). In that case, the Council will, in accordance with Article 27(3) TEU, revise the Decision in light of the review by the beginning of 2014. This short and user-­‐friendly legal commentary on the 2010 Council Decision is the first of its kind and is intended to inform those involved in the review process and to serve as a reference document for practitioners and analysts dealing with the EEAS. This commentary is not an elaborate doctrinal piece, but rather a textual and contextual analysis of each article, that takes account of i) other relevant legal provisions (primary, secondary, international), ii) the process leading to the adoption of the 2010 Council Decision (i.e. travauxpréparatoires), iii) the preamble of the Council Decision, and iv) insofar as it is possible at this stage, early implementation. Wherever relevant, cross-­‐references to other provisions of the EEAS Council Decision have been made so as to tie in the different commentaries and ensure overall consistency.

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A driving argument behind recent EU treaty reforms was that more qualified majority voting (QMV) was required to reduce the potential dangers of legislative paralysis caused by enlargement. Whilst existing literature on enlargement mostly focuses on the question of what changed in the legislative process after the 2004 enlargement, the question of why these changes occurred has been given far less attention. Through the use of a single veto player theoretical model, this paper seeks to test and explain whether enlargement reduces the efficiency of the legislative process and alters the type of legislation produced, and whether QMV can compensate for these effects. In doing this, it offers a theoretical explanation as to why institutional changes that alter the level of cohesion between actors in the Council have an influence over both the legislative process and its outcomes.

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This short and user-friendly legal commentary on the 2010 Council Decision establishing the organisation and functioning of the EEAS is the first of its kind. It is intended to inform those involved in the review process and to serve as a reference document for practitioners and analysts dealing with the EEAS. Rather than an elaborate doctrinal piece, this legal commentary is a textual and contextual analysis of each article that takes account of i) other relevant legal provisions (primary, secondary, international); ii) the process leading to the adoption of the 2010 Council Decision; iii) the preamble of the Council Decision and iv) insofar as it is possible at this stage, early implementation. Wherever relevant, cross-references to other provisions of the Council Decision have been made so as to tie in the different commentaries and ensure overall consistency.

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Despite a broader agenda, the June 2014 European Council was dominated by the decision of EU leaders – taken by qualified majority – to propose to the European Parliament Jean-Claude Juncker as the next Commission President. In this post-summit analysis Janis A. Emmanouilidis argues that recent developments could have four consequences: increasing politicisation at European level; opposition from the side of national governments to what they consider to be an unjustifiable shift of power; further complication, maybe even deterioration of the relationship between London and ‘Brussels; and ‘consolidation’ as the predominant political attitude in the beginning of a new political cycle. Aside from all this, the Summit adopted a Strategic Agenda for the years to come, agreed to new strategic guidelines for the Area of Freedom, Security and Justice, postponed the decision on a new energy and climate framework to October, concluded the fourth European Semester with the adoption of country-specific recommendations, and, last but not least, EU leaders finally signed the Association Agreements with Georgia, Moldova and Ukraine demonstrating that the Union and these countries are ready to deepen political and economic ties.

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The German Constitutional Court (BVG) recently referred different questions to the European Court of Justice for a preliminary ruling. They concern the legality of the European Central Bank’s Outright Monetary Transaction mechanism created in 2012. Simultaneously, the German Court has threatened to disrupt the implementation of OTM in Germany if its very restrictive analysis is not validated by the European Court of Justice. This raises fundamental questions about the future efficiency of the ECB’s monetary policy, the damage to the independence of the ECB, the balance of power between judges and political organs in charge of economic policy, in Germany and in Europe, and finally the relationship between the BVG and other national or European courts.

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In most Western countries, the media are said to exert an increasing influence on the political game. This development, which has been described variably as a shift towards an 'audience democracy' (Manin 1995) or the 'mediatization of politics' (Mazzoleni and Schulz 1999), emphasizes the increasing importance of the media for political actors and political decision-making. In such a context, political actors need to communicate with both the media and the public in order to gain support for their policy plans and to influence decision-making. The media were noticeably absent from Kriesi's (1980) in-depth analysis of political decision-making in Switzerland. This suggests that in the early 1970s, the media did not matter or mattered far less than they do today.

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The previous chapter presented the overall decision-making structure in Swiss politics at the beginning of the 21st century. This provides us with a general picture and allows for a comparison over time with the decision-making structure in the 1970s. However, the analysis of the overall decision-making structure potentially neglects important differences between policy domains (Atkinson and Coleman 1989; Knoke et al. 1996; Kriesi et al. 2006a; Sabatier 1987). Policy issues vary across policy domains, as do the political actors involved. In addition, actors may hold different policy preferences from one policy domain to the next, and they may also collaborate with other partners depending on the policy domain at stake. Examining differences between policy domains is particularly appropriate in Switzerland. Because no fixed coalitions of government and opposition exist, actors create different coalitions in each policy domain (Linder and Schwarz 2008). Whereas important parts of the institutional setting are similar across policy domains, decision-making structures might still vary. As was the case with the cross-time analysis conducted in the two previous chapters, a stability of 'rules-in-form' might hide important variations in 'rules-in-use' also across different policy domains.

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Mode of access: Internet.

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"C00-2118-0048."

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Mode of access: Internet.

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U.S. Geological Survey, Department of Interior Cooperative Agreement No. 14-48-0003-95-1090

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Bibliography: p. 169-174.