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Addressing the challenges of extreme scale computing re- quires holistic design of new programming models and sys- tems that support those models. This paper discusses the Angstrom processor, which is designed to support a new Self-aware Computing (SEEC) model. In SEEC, applications explicitly state goals, while other systems components provide actions that the SEEC runtime system can use to meet
The nature of scientific research and the development of scientific software have similarities with processes that follow the agile manifesto: responsiveness to change and collaboration are of the utmost importance. But how well do current scientific software development processes match the practices found in agile development methods, and what are the effects of using agile practices in such proc
BEAN is a recent stream cipher proposal that uses Feedback with Carry Shift Registers (FCSRs) and an output function. There is a sound motivation behind the use of FCSRs in BEAN as they provide several cryptographically interesting properties. In this paper, we show that the output function is not optimal. We give an efficient distinguisher and a key recovery attack that is slightly better than brut
This thesis is based on five papers (A-E) treating estimation methods for unbounded densities, random fields generated by Lévy processes, behavior of Lévy processes at level crossings, and a Markov random field mixtures of multivariate Gaussian fields. In Paper A we propose an estimator of the location parameter for a density that is unbounded at the mode. The estimator maximizes a modified lik
In this paper, we study a flexible routing strategy for demand protection and a corresponding optimization problem for networks that permanently experience fluctuations of the capacity available on their links. This is an important and novel topic as limited link availability is a fundamental feature of wireless networks; yet majority of work in survivable network design is restricted to total fai
E.ON har utkontrakterat en stor del av deras dagliga verksamhet till solcellsinstallatörer. Denna outsourcing-strategi har lett till brist på kunskap över hur hela solcellsinstallationen utförs och vad det finns för förbättringsområden i den. Detta examensarbete har kartlagt hela processen i detalj för att samla in kunskap och förståelse. Syftet med detta examensarbete är att utveckla ett förslagProcess improvement work is commonly used in most businesses. Much of the current theory in process improvement work is based on the typical manufacturing processes where each and every second matters. What do you do if you don’t work at a manufacturing company or if you don’t have well measured processes? Turns out there’s still a lot that your company can start to improve.
Title: The perceived innovativeness of the manufacturing process and perceived product quality. The case of creative and technology-intensive industries. Course: BUSN39 Degree Project in Global Marketing Authors: Federica Piccone & Joanna Pilawa Supervisor: Javier Cenamor Keywords: manufacturing process; perceived innovativeness; perceived quality Thesis Purpose: The main purpose is to
Efterfrågan av digitala verktyg i skolor har ökat de senaste åren och idag är det enligt Skolverket ett krav att använda digitala verktyg i matematik. Digitala matematiska verktyg kan förse elever med automatisk återkoppling och lärare kan anpassa sitt sätt att undervisa, baserat på elevernas progression. Trots att det finns flera fördelar med att inkludera digitala matematiska verktyg, finns det The demand for digital tools in schools has increased over the years and today it is a requirement from the Swedish National Agency for Education to use digital tools in mathematics. Digital mathematical tools can provide students with automated feedback and teachers can adapt their teaching strategy based on data from their students’ progress. Even though there are multiple advantages of includin
Gendered violence against woman and children has been in existence and predominant in various societies for a long period of time with its intensity varying from one factor to the other. Many nations around the world including Ghana in West Africa have measures and directives to mitigate of the persistent social menace and possibly eradicate it towards sustainable welfare and development for indiv
Uppsatsen undersöker #MeToo som social rörelse med betoning på den deliberativa processen och hur medborgarengagemang skapas genom mobilisering och användning av hashtagen #MeToo. Syftet med denna uppsats är att undersöka hur sociala medier kan vara ett verktyg för politisk kommunikation och hur politisk mobilisering sker i och med den medieteknologiska utvecklingen. Uppsatsen bygger på en fallstu
The ongoing Europeanisation is readily identifiable in our day-to-day life. Particularly in the field of law, the elaboration of a uniform and harmonised European private law is promoted and a truly European legal science is forced. Yet, comparative law and unification of law have concentrated on certain areas, which include mainly commercial law and related areas of civil law. The main issue of t
Data defined software is becoming more and more prevalent, especially with the advent of machine learning and artificial intelligence. With data defined systems come both challenges - to continue to collect and maintain quality data - and opportunities - open innovation by sharing with others. We propose Open Data Collaboration (ODC) to describe pecuniary and non-pecuniary sharing of open data, si
Algorithms for Massive MIMO uplink detection are typically based on a centralized approach, by which baseband data from all antenna modules need to be routed to a central node for further processing. In the case of Massive MIMO, where hundreds or thousands of antennas are expected in the base-station, such architecture requires high interconnection bandwidth between antennas and the central node.
Time-varying spatially-coupled low-density parity-check convolutional codes (SC-LDPC-CCs) exhibit excellent features, but their representation requires a very large number of parameters. On the other hand, the description of time-invariant SC-LDPC-CCs is very convenient and their error rate performance, though usually worse, is often satisfactory. In this paper we investigate the girth properties
Massive multiple-input multiple-output (MIMO) is becoming a mature technology, and has been approved for standardization in the 5G space. Although there are many papers on the theoretical analysis of massive MIMO, the majority of relevant work assumes the simplified, yet overly idealistic, Kronecker-type model for spatial correlation. Motivated by the deficiencies of the Kronecker model, we invoke
We discuss general non-stationary spatio-temporal surfaces that involve dynamics governed by velocity fields. The approach formalizes and expands previously used models in analysis of satellite data of significant wave heights. We start with homogeneous spatial fields. By applying an extension of the standard moving average construction we obtain models which are stationary in time. The resulting
We consider an optimization problem of joint link rate assignment and transmission scheduling in wireless mesh networks. We assume that each radio link uses (when active) one selected link-dependent modulation and coding scheme. For finding an exact optimum, the problem requires a complicated branch-and-price algorithm that becomes excessively time consuming for networks of practical size. Therefo
Gaussian models are frequently used for road profiles. However, these models are often only valid for short sections of the road. Here we present a comprehensive approach to describe various aspects of road surface/elevation by using extensions of Gaussian models arising from random gamma distributed variances. These random variances result in the Laplace distribution and thus we refer to the so d
This paper highlights the issues of detecting Java concurrency bugs using static code analysis tools. Concurrency bugs are often hard to find because of interleaving threads and there is need to use static analysis tools to detect the concurrency bugs. In the literature review, we established that there are number of static analysis tools such as FindBugs, JLint and Chord, used in experiments to d
