BIBSYS: Open Journals Systems
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The SUCI-AKA Authentication Protocol for 5G Systems
Full text linkSecurity is a fundamental requirement for all digital systems. In this paper we propose a new entity authentication protocol, which we call the SUCI-AKA protocol. In contrast to the existing 5G-AKA protocol, it will provide online mutual entity authentication. A central design criteria has been to provide a solution which minimizes the system impact and avoids hard breaks with existing schemes. The SUCI-AKA protocol is largely based on the new 5G scheme for subscriber privacy, and integrates it with the existing 5G-AKA entity authentication protocol in a novel way. This provides scope for accommodating both credible subscriber privacy and online mutual entity authentication
Us against the World: Detection of Radical Language in Online Platforms
Full text linkIn this paper, we have investigated if we can detect radical comments in an online social network. We used comments from 6 subreddits, 3 of which are considered radical and 3 non-radical. Using various structural features of the texts in the comments, we were able to obtain an F1-score of 91% when using SVM with a linear kernel and a precision of almost 98% when using Random Forest
Environmental scanning in higher education: Use of digital sources for the renewal and updating of design project teaching resources
Full text linkIn France, design training in any field, graphic design, product design or social design for example, is provided in universities and higher education institutions. In universities and other higher education institutions, design teachers must continuously renew their resources for design project courses. Indeed, teachers must, on the onehand, select contemporary work topics and, on the other hand, accompany students in their design work. To acquire their resources, they conduct environmental scanning that includes, among others, documentary sources and other online sources. Our research is based on a qualitative study of fourteen teachers and shows the predominance of the use of digital sources, and the importance of creating a composite set of sources. This work contributes to the understanding of strategies for updating and renewing resources by conducting environmental scanning in an overloaded informational context
Smidig epistemologi
Full text linkPraktiske fag kan somme tider framstå som ein pariakaste ved universiteta. Vitskapsideala som er utvikla over fleire hundre år inneber at det er like viktig å vita korleis me kan vita, som faktisk å vita. Kunnskap skal vera objektiv og etterprøvbar og helst kontekstfri. Praktiske fag vert dregne i eit dilemma mellom vitskaplege ideal og praktisk relevans. Mange profesjonsfag har etter kvart ein rik litteratur om dette problemet, der ein utviklar epistemologiar som er likeverdige med dei konvensjonelle vitskapane, men som tek omsyn til skilnaden mellom fag som skildrar verda og fag som endrar verda. Dette har i liten grad vore drøfta innanfor programutvikling, og her skal me sjå på korleis eksisterande metode og epistemologi frå design kan vera relevant for programutvikling generelt og smidige metodar spesielt. Vidare skal me drøfta korleis denne innsikta er relevant for undervising og vurdering
Preface NIK 2021
No full textNIK is a widely scoped national conference for dissemination of research and advanced development work within informatics. The conference calls for submission of papers from a diverse set of genres and topics –- within theoretical as well as applied informatics. NIK is also open for cross-disciplinarity and diversity with regards to methodological approaches and application areas
Bitcoin and Blockchain Security A Study in Misconceptions
Full text linkSince its inception in 2008/2009 Bitcoin and its underlying blockchain technology has been thoroughly studied and the number of scientific articles has grown substantially. Irrespective of the research field, most of the articles have an introduction to blockchain technology where the key parts of it are described. However, many authors make misconceptions about the security model of Proof of Work-based blockchains when describing it. The most prevailing misconception is the confusion of the concepts tamper evidence and tamper resistance. There are also other misconceptions regarding blockchain security. This article presents the result of an extensive literature review of blockchain publications indexed by Web of Science where we study how the security of blockchains is described. We find that almost a third of the studied papers are misleading when describing the security of the technology
Global Business Textbook Evaluation: Task Types in the Spotlight
Full text linkTextbook evaluation, with the aim of assisting the choice of the most suitable book for a specific context, has become a needed practice in the field of English for Specific Purposes (ESP). During recent years, with the rapid spread of Communicative Language Teaching (CLT) and its concern for tasks and activities that enhance learners’ interaction, more researchers have become interested in exploring the different task types in textbooks in the field of English Language Teaching (ELT). The present study sought to evaluate the two most popular global business English textbook series (English Business Result and Market Leader) that are taught in Iranian institutes, in terms of their task types according to Nunan’s (1999) classification of tasks. The results revealed that linguistic tasks and creative tasks were respectively the most and the least common task types presented in these textbooks. The results also indicated a significant difference among the frequency of task types in the textbooks. It was evident that these ESP textbooks covered all of the macro tasks and most of the micro tasks specified by Nunan (1999), but some of them significantly focused on specific types of tasks
Data Curation in the Era of Research Infrastructures
Full text linkGovernments and funding bodies enact policies to set up Research Infrastructures (RIs) to integrate data from different environmental monitoring research sites. The goal of such policies is to publicly open access to research data to support research and innovation and to develop policies for sustaining RIs and the environment at large. However, little is known about the data curation practices of environmental monitoring research scientists at the origins of data. Informed by practice theories on the constitutive entanglement of the social and the material in everyday organisational work, the study zooms-in on the data curationpractices utilised by environmental monitoring research scientists to create data that is of good quality and reliable for sharing. Early findings are based on observations and semi-structured interviews of participants in environmental research sites, who collaborate on taking samples of animal and plant species in marine and terrestrial environments. We find that data curation at the origins of data are rife with challenges and opportunities in: data competence, data management and data quality practices. This poster submission concludes with implications of such practices for data governance of large-scale RIs
A Case Study of Teamwork and Project Success in a Comprehensive Capstone Course
Full text linkTeamwork is essential in agile software development projects. Therefore, software engineering students who participate in a software engineering capstone course involving teamwork are better prepared for the industry. This study investigated student teams over three years in a comprehensive capstone course offered by the University of Oslo. The collaboration between the students involved in the course changed from in person in 2019 to virtual in 2020 and 2021 due to the COVID-19 pandemic. In this study, we aimed to explore the differences in teamwork and the effect on project success when the student teams collaborated in person versus virtually. A mixed-methods case study was conducted. The quantitative data consisted of surveys representing 126 student teams and 595 individual respondents. The qualitative data included eight semi-structured interviews. The results indicate that the student teams in such software engineering capstone courses perform well even when collaborating virtually, but they are less satisfied than they are when in person. The student teams found it hard to motivate themselves when they suddenly had to work virtually. Still, the motivation increased when they found ways to collaborate and make the project case exciting. The teams found adequate collaboration tools and managed to carry out the teamwork virtually. Even though it was harder to work virtually, project success was not significantly affected. The student teams that performed well also used virtual collaboration proficiently
