| 1. |
- Arvidsson, Åke, 1957-, et al.
(author)
-
Modelling user experience of adaptive streaming video over fixed capacity links
- 2021
-
In: Performance evaluation (Print). - 0166-5316 .- 1872-745X. ; 148, s. 1-12
-
Journal article (peer-reviewed)abstract
- Streaming video continues to experience unprecedented growth. This underscores the need to identify user-centric performance measures and models that will allow operators to satisfy requirements for cost-effective network dimensioning delivered with an acceptable level of user experience. This paper presents an analysis of two novel metrics in the context of fixed capacity links: (i) the average proportion of a video’s playing time during which the quality is reduced and (ii) the average proportion of videos which experience reduced quality at least once during their playing time, based on an M/M/∞ system. Our analysis is shown to hold for the more general M/G/∞ system for metric (i), but not for (ii) and simulation studies show an unexpected form of sensitivity of metric (ii) to the flow duration distribution, contrary to the norm of increasing variance causing worse performance. At typical operational loads these new metrics provide a more sensitive and information rich guide for understanding how user experience degrades, than the widely used average throughput metric does. We further show that only the combined use of this existing and our new metrics can provide a holistic perspective on overall user performance.
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| 2. |
- Arvidsson, Åke, 1957-, et al.
(author)
-
Web metrics for the next generation performance enhancing proxies
- 2019
-
In: 2019 27TH INTERNATIONAL CONFERENCE ON SOFTWARE, TELECOMMUNICATIONS AND COMPUTER NETWORKS (SOFTCOM). - : IEEE. - 9789532900880 ; , s. 171-176
-
Conference paper (peer-reviewed)abstract
- The fast growth of Internet traffic, the growing importance of cellular accesses and the escalating competition between content providers and network operators result in a growing interest in improving network performance and user experience. In terms of network transport, different solutions ranging from tuning TCP to installing middleboxes are applied. It turns out, however, that the practical results sometimes are disappointing and we believe that poor testing is one of the reasons for this. Indeed, many cases in the literature limit testing to the simple and rare use case of a single file download, while common and complex use cases like web browsing often are ignored or modelled only by considering smaller files. To facilitate better testing, we present a broader view which includes domain counts, flow counts and different forms of concurrency to better characterise the complexity around web pages, and from which the potential for different optimisation techniques can be estimated. We also derive numerical values of these metrics for a small set of popular web pages and study similarities and differences between pages with the same kind of content (newspapers, e-commerce and video) and between pages designed for the same platform (computer and smartphone).
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| 3. |
- Atxutegi, Eneko, et al.
(author)
-
On the move with TCP in current and future mobile networks
- 2017
-
In: Proceedings of the 8th International Conference on the Network of the Future, London, United Kingdom, November 2017.
-
Conference paper (other academic/artistic)abstract
- Mobile wireless networks constitute an indispensable part of the global Internet, and with TCP the dominating transport protocol on the Internet, it is vital that TCP works equally well over these networks as over wired ones. This paper identifies the performance dependencies by analyzing the responsiveness of TCP NewReno and TCP CUBIC when subject to bandwidth variations related to movements in different directions. The presented evaluation complements previous studies on 4G mobile networks in two important ways: It primarily focuses on the behavior of the TCP congestion control in medium- to high-velocity mobility scenarios, and it not only considers the current 4G mobile networks, but also low latency configurations that move towards the overall potential delays in 5G networks. The paper suggests that while both CUBIC and NewReno give similar goodput in scenarios where the radio channel continuously degrades, CUBIC gives a significantly better goodput in scenarios where the radio channel quality continuously increases. This is due to CUBIC probing more aggressively for additional bandwidth. Important for the design of 5G networks, the obtained results also demonstrate that very low latencies are capable of equalizing the goodput performance of different congestion control algorithms. Only in low latency scenarios that combine both large fluctuations of available bandwidths and a mobility pattern in which the radio channel quality continuously increases can some performance differences be noticed.
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| 4. |
- Beyer, Anne, et al.
(author)
-
Is Incoherence Surprising? Targeted Evaluation of Coherence Prediction from Language Models
- 2021
-
In: Proceedings of the 2021 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, NAACL-HLT 2021, June 6 -11, 2021, Online. - Stroudsburg, PA, USA : Association for Computational Linguistics. - 9781954085466
-
Conference paper (peer-reviewed)abstract
- Coherent discourse is distinguished from a mere collection of utterances by the satisfaction of a diverse set of constraints, for example choice of expression, logical relation between denoted events, and implicit compatibility with world-knowledge. Do neural language models encode such constraints? We design an extendable set of test suites addressing different aspects of discourse and dialogue coherence. Unlike most previous coherence evaluation studies, we address specific linguistic devices beyond sentence order perturbations, which allow for a more fine-grained analysis of what constitutes coherence and what neural models trained on a language modelling objective are capable of encoding. Extending the targeted evaluation paradigm for neural language models (Marvin and Linzen, 2018) to phenomena beyond syntax, we show that this paradigm is equally suited to evaluate linguistic qualities that contribute to the notion of coherence.
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| 5. |
- Cappelen, Birgitta, 1962-, et al.
(author)
-
Design for co-creation with interactive montage
- 2011
-
In: Proceedings, 4th Nordic Design Research Conference, Nordes2011, School of Art and Design, Aalto University, Helsinki, Finland
May 29th - June 1st, 2011.
-
Conference paper (peer-reviewed)abstract
- Montage in cinema means to mount images andsounds from different sources, that are interpreted together and whose oppositions drive the storyfurther. In this paper we develop the montage concept further for co-creation in interactive, tactile, spatial cross-media. As case we use the design of the interactive, tangible, cross-media installation ORFI. ORFI is developed to facilitate collaboration and co-creation between children with severe disabilities and their care persons. In this paper we focus on how we have designed for interactive montage. We present two main types of interactive montage, close and shifted in three dimensions (spatial, temporal and actorial). With the first we mean spatial and temporal closeness, depending on the roles users take and the interpretations they make. With shifted we mean how to use spatial and temporal shifting and distance between the media elements in space and over time, depending on the users’ roles and interpretations. All this to encourage co-creation over time, between a variety of users in different situations.
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| 6. |
- Cappelen, Birgitta, 1962-, et al.
(author)
-
From designing objects to designing fields : from control to freedom
- 2003
-
In: Digital Creativity. - 1462-6268 .- 1744-3806. ; 14:2, s. 74-90
-
Journal article (peer-reviewed)abstract
- In this paper we want to explore Field as a concept and as a metaphor for understanding interactive systems. By interactive systems we mean both systems and artworks, where the user by interacting changes the course of events. We intend to show why we need new terms and why we consider Field to be a fruitful concept and term. Further we will show how the Field concept changes both our understanding of what we do as designers and composers and how we acknowledge our audience. We will exemplify the design consequences of the Field concept by going through some design considerations we made when designing the audio tactile installation Mufi.
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| 7. |
- Carlsson, Bengt, et al.
(author)
-
Differences between the iterated prisoner's dilemma and the chicken game under noisy conditions
- 2002
-
Conference paper (other academic/artistic)abstract
- The prisoner's dilemma has evolved into a standard game for analyzing the success of cooperative strategies in repeated games. With the aim of investigating the behavior of strategies in some alternative games we analyzed the outcome of iterated games for both the prisoner's dilemma and the chicken game. In the chicken game, mutual defection is punished more strongly than in the prisoner's dilemma, and yields the lowest fitness. We also ran our analyses under different levels of noise. The results reveal a striking difference in the outcome between the games. Iterated chicken game needed more generations to find a winning strategy. It also favored nice, forgiving strategies able to forgive a defection from an opponent. In particular the well-known strategy tit-for-tat has a poor successrate under noisy conditions. The chicken game conditions may be relatively common in other sciences, and therefore we suggest that this game should receive more interest as a cooperative game from researchers within computer science.
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| 8. |
- Chen, Eric Zhi, 1963-
(author)
-
Constructions of 2-generator quasi-cyclic codes
- 2006
-
In: Proceedings of the tenth International Workshop on Algebraic and Combinatorial Coding Theory. - Zvenigorod : Institute of Information Transmission Problems of Russian Academy of Sciences. ; , s. 60-63
-
Conference paper (peer-reviewed)
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| 9. |
- Chen, Eric Zhi, 1963-
(author)
-
Constructions of quasi-cyclic two-weigh codes
- 2006
-
In: Proc. of the tenth International Workshop on Algebraic and Combinatorial Coding Theory (ACCT-10). ; , s. 56-59
-
Conference paper (peer-reviewed)abstract
- As a generalization of cyclic codes, quasi-cyclic (QC) codes contain many good linear codes. But quasi-cyclic codes studied so far are mainly limited to one generator (1-generator) QC codes. In this paper, 2-generator QC codes are studied, and many good 2-generator QC codes are constructed using simplex codes. A computer algorithm is given, and used to find the best possible 2-generator QC codes. Among those 2-generator QC codes constructed, some codes are two-weight codes.
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| 10. |
- Chen, Eric Zhi, 1963-
(author)
-
Further results on difference triangle sets
- 1994
-
In: IEEE Transactions on Information Theory. - 0018-9448 .- 1557-9654. ; 40:4, s. 1268-1270
-
Journal article (peer-reviewed)abstract
- Further results on the upper bounds for difference tri8nglesets (DTS) are derived from disjoint difference sets and additive sequencesof permutations, whit3 greatly improve the known bounds.
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| 11. |
- Chen, Eric Zhi, 1963-
(author)
-
Good quasi-cyclic codes derived from irreducible cyclic codes
- 2005
-
In: Proceedings of Optimal Codes and Related Topics (OC2005). ; , s. 74-81
-
Conference paper (peer-reviewed)abstract
- As a generalization of cyclic codes, quasi-cyclic codes contain many good linear codes. Extensive search is made and lots of good quasi-cyclic codes are obtained from irreducible cyclic codes. A new binary [95, 13, 40] code which improves the lower bound on the minimum distance, is also constructed.
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| 12. |
- Chen, Eric Zhi, 1963-
(author)
-
New binary h-generator quasi-cyclic codes by augmentation and new minimum distance bounds
- 2016
-
In: Designs, Codes and Cryptography. - 0925-1022 .- 1573-7586. ; 80:1, s. 1-10
-
Journal article (peer-reviewed)abstract
- An [n, k, d] code is a binary linear code of block length n, dimension k and minimum Hamming distance d. Since the minimum distance determines the error detection or correction capability, it is desired that d is as large as possible for the given block length n and dimension k. One of the most fundamental problems in coding theory is to construct codes with best possible minimum distances. This problem is very difficult in both theory and practice. During the last decades, it has proved that the class of quasi-cyclic (QC) codes contain many such codes. In this paper, augmentation of binary QC codes is studied. A new augmentation algorithm is presented, and 10 new h-generator QC codes that are better than previously known code have been constructed. Furthermore, Construction X has been applied to obtain another 18 new improved binary linear codes.With the standard construction techniques, a total of 124 new binary linear codes that improve the lower bound on the minimum distance have been obtained.
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| 13. |
- Chen, Eric Zhi, 1963-
(author)
-
New constructions of a family of 2-generator quasi-cyclic two-weight codes and related codes
- 2007
-
In: Proc. of 2007 IEEE Internat. Symp. on Inform. Theory. - Piscataway, NJ : IEEE. - 9781424413973 ; , s. 2191-2195
-
Conference paper (peer-reviewed)abstract
- Based on cyclic simplex codes, a new construction of a family of two-weight codes is given. These two-weight codes are in a simple 2-generator quasi-cyclic form. Based on this construction, new optimal binary quasi-cyclic [195, 8, 96], [210, 8, 104] and [240, 8, 120] codes, good QC ternary [195, 6, 126], [208, 6, 135], [221, 6, 144] codes are thus obtained. It was also shown that some codes that meet the Griesmer bound and thus are optimal. Furthermre, binary self-complementary codes in a 3-generator quasi-cyclic form, are also constructed.
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| 14. |
- Chen, Eric Zhi, 1963-
(author)
-
New constructions of combinatorial designs and related codes
- 2002
-
In: Proceedings of the 8th International Workshop on Algebraic coding and Combinatorial Theory (ACCT-VIII). ; , s. 264-267
-
Conference paper (peer-reviewed)abstract
- New constructions of Steiner systems, majority logic decodable codes, and constant weight codes are presented. Comparisons with known results as well as examples are also given.
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| 15. |
- Chen, Eric Zhi, et al.
(author)
-
New quasi-twisted codes over F11— minimum distance bounds and a new database
- 2015
-
In: Journal of Information and Optimization Sciences. - 0252-2667 .- 2169-0103. ; 36:1-2, s. 129-157
-
Journal article (peer-reviewed)abstract
- One fundamental and challenging problem in coding theory is to optimize the parameters [n, k,d] of a linear code over the finite field Fq and construct codes with best possible parameters. There are tables and databases of best-known linear codes over the finite fields of size up to 9 together with upper bounds on the minimum distances. Motivated by recent works on codes over F11, we present a table of best-known linear codes over F11 together with upper bounds on minimum distances. Our table covers the range n ≤ 150 for the length, and 3 ≤ k ≤ 7 for the dimension. To the best of our knowledge, this is the first time such a table is presented in the literature. For the construction of the best-known codes, we employed an iterative heuristic search algorithm to search for new linear codes in the class of quasi-twisted (QT) codes. The search yielded many new codes with better parameters than previously known codes. In many cases, optimal codes are obtained. In addition to presenting a comprehensive table of best-known codes over F11 of dimensions up to 7 with upper bounds on the minimum distances, we also present separate tables for the optimal codes and new QT codes over F11. We hope that this work will be a useful source for further study on codes over F11.
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| 16. |
- Chen, Eric Zhi, 1963-
(author)
-
New results on binary quasi-cyclic codes
- 2000
-
In: 2000 Ieee International Symposium on Information Theory. - : IEEE conference proceedings. - 0780358570 ; , s. 197-
-
Conference paper (peer-reviewed)abstract
- Twelve new binary quasi-cyclic codes, which improve the lower bounds on minimum distances for binary linear codes, are presented, and a Web database on best-known binary quasi-cyclic codes is constructed for public access.
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| 17. |
- Chen, Eric Zhi, 1963-
(author)
-
Quasi-cyclic codes derived from cyclic codes
- 2004
-
In: Proceedings of Int. Symp. on Information Theory and its Applications (ISITA2004), Parma, Italy. ; , s. 162-165
-
Conference paper (peer-reviewed)
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| 18. |
- Chen, Eric Zhi, 1963-
(author)
-
Six new binary quasi-cyclic codes
- 1994
-
In: IEEE Transactions on Information Theory. - 0018-9448 .- 1557-9654. ; 40:5, s. 1666-1667
-
Journal article (peer-reviewed)abstract
- Six new quasi-cyclic codes are presented, which improve thelower bounds on the minimum distance for a binary code. A localexhaustive search is used to find these codes and many other quasi-cycliccodes which attain the lower bounds.
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| 19. |
- Chen, Wende, et al.
(author)
-
New constructions of disjoint distinct difference sets
- 1998
-
In: Designs, Codes and Cryptography. - 0925-1022 .- 1573-7586. ; 15:2, s. 157-165
-
Journal article (peer-reviewed)abstract
- New constructions of regular disjoint distinct difference sets (DDDS) are presented. In particular,multiplicative and additive DDDS are considered.
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| 20. |
- Curzi, Gianluca, 1991, et al.
(author)
-
A type-assignment of linear erasure and duplication
- 2020
-
In: Theoretical Computer Science. - 0304-3975.
-
Journal article (peer-reviewed)abstract
- We introduce ???, a type-assignment system for the linear λ-calculus that extends second-order ????2, i.e., intuitionistic multiplicative Linear Logic, by means of logical rules that weaken and contract assumptions, but in a purely linear setting. ??? enjoys both a mildly weakened cut-elimination, whose computational cost is cubic, and Subject reduction. A translation of ??? into ????2 exists such that the derivations of the former can exponentially compress the dimension of the derivations in the latter. ??? allows for a modular and compact representation of boolean circuits, directly encoding the fan-out nodes, by contraction, and disposing garbage, by weakening. It can also represent natural numbers with terms very close to standard Church numerals which, moreover, apply to Hereditarily Finite Permutations, i.e. a group structure that exists inside the linear λ-calculus.
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| 21. |
- Curzi, Gianluca, 1991
(author)
-
Linear Additives
- 2021
-
In: Electronic Proceedings in Theoretical Computer Science (EPTCS). - 2075-2180.
-
Journal article (peer-reviewed)abstract
- We introduce LAM, a subsystem of IMALL2 with restricted additive rules able to manage duplication linearly, called linear additive rules. LAM is presented as the type assignment system for a calculus endowed with copy constructors, which deal with substitution in a linear fashion. As opposed to the standard additive rules, the linear additive rules do not affect the complexity of term reduction: typable terms of LAM enjoy linear strong normalization. Moreover, a mildly weakened version of cut-elimination for this system is proven which takes a cubic number of steps. Finally, we define a sound translation from LAM’s proofs into IMLL2’s linear lambda terms, and we study its complexity.
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| 22. |
- Dootio, Mazhar Ali, et al.
(author)
-
Secure and failure hybrid delay enabled a lightweight RPC and SHDS schemes in Industry 4.0 aware IIoHT enabled fog computing
- 2021
-
In: Mathematical Biosciences and Engineering. - 1547-1063 .- 1551-0018. ; 19:1, s. 513-536
-
Journal article (peer-reviewed)abstract
- These days, the Industrial Internet of Healthcare Things (IIT) enabled applications have been growing progressively in practice. These applications are ubiquitous and run onto the different computing nodes for healthcare goals. The applications have these tasks such as online healthcare monitoring, live heartbeat streaming, and blood pressure monitoring and need a lot of resources for execution. In IIoHT, remote procedure call (RPC) mechanism-based applications have been widely designed with the network and computational delay constraints to run healthcare applications. However, there are many requirements of IIoHT applications such as security, network and computation, and failure efficient RPC with optimizing the quality of services of applications. In this study, the work devised the lightweight RPC mechanism for IIoHT applications and considered the hybrid constraints in the system. The study suggests the secure hybrid delay scheme (SHDS), which schedules all healthcare workloads under their deadlines. For the scheduling problem, the study formulated this problem based on linear integer programming, where all constraints are integer, as shown in the mathematical model. Simulation results show that the proposed SHDS scheme and lightweight RPC outperformed the hybrid for IIoHT applications and minimized 50% delays compared to existing RPC and their schemes.
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| 23. |
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| 24. |
- Einarson, Daniel, et al.
(author)
-
A participatory action research approach to developing assistive technologies for people suffering from cognitive disorders
- 2014
-
In: Abstract book. - 9788793053014
-
Conference paper (peer-reviewed)abstract
- Cognitive disorders, such as disorders on the autistic spectrum, Downs’s syndrome, etc. often imply significant constraints on communication between persons suffering from those, and the environment where they act. Meanwhile, governmental propositions on human rights emphasize equality concerning information, where overcoming such interaction challenges should be considered as strongly encouraged. This contribution discusses studies that have been performed towards municipalities, public institutions, and non-profit organizations, in southern Sweden. The studies aim to involve users throughout the development of an innovative concept of communication assistive software technology, by involving multiple types of users, such as: persons with disabilities, personal assistants, teachers for students with special needs, academics, and others. The studies and the resulted findings are discussed in regard to the participatory action research framework.
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| 25. |
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| 26. |
- Einarson, Daniel
(author)
-
Approaching CMM to an educational CDIO based software engineering process
- 2012
-
In: Proceedings of the 8th International CDIO Conference, Queensland University of Technology, Brisbane, July 1 - 4, 2012.
-
Conference paper (peer-reviewed)abstract
- Software Engineering is probably one of the most recent engineering disciplines. As such there have been major requirements put on that discipline to undergo appropriate transformations from immaturity to higher levels of maturity. This does not only relate to matters of evolution of techniques, and usability, but also the process of developing the software of concern.The ability to succeed in a large scaled Software Engineering project is probably highly dependent on the ways of working, that is, on the working process that fulfils the project. The Capability Maturity Model aims to assess the maturity of a software process, and serves as a guidance to improve such processes. Maturity here relates to degrees of formality and optimization, from ad hoc driven processes, via defined process structures, to active process optimization.Seen in a perspective of Software Engineering education we can see that it is of high importance that students get exhaustive practice in project based work. Several working process models of that are proposed in the context of Software Engineering research. Following such models may increase the probability of project success, both in industry and in educational projects. Still, a process with inherent self-reflecting mechanisms may increase such probability even further, with effect on quality of both work and product.This contribution will shed light on the working process of students, where self-reflection, self-motivation, and process improvement are put in focus. A model for this has been the Capability Maturity Model where reflecting over working processes aims to increase grades of process maturity and quality.
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| 27. |
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| 28. |
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| 29. |
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| 30. |
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| 31. |
- Einarson, Daniel
(author)
-
Ethics and responsibilities in a CDIO based software engineering process
- 2013
-
In: Proceedings of the 9th International CDIO Conference, Massachusetts Institute of Technology and Harvard University School of Engineering and Applied Sciences, Cambridge, Massachusetts, June 9 – 13, 2013.
-
Conference paper (peer-reviewed)abstract
- The great impact that Software Engineering has had on society during the latest decades has put demands on that discipline to become a mature, as well as a trustworthy engineering discipline. Here, the so called, software engineering Code of Ethics has been introduced to encourage such development.The Code of Ethics has a prime focus on the Public, and a secondary focus on co-operation and development. While the Code of Ethics in first place concerns Software Engineers in professional work, it is interesting to see how this concept influences maturity and trustworthiness also to students in educational project based work.This contribution will cover on-going experiments in project based courses where students reflect on the Code of Ethics. Such reflections should have impact on team work, as well as on views on Software Engineering for the common public. The main question concerns how student’s project work may be improved through such reflections, to meet previously observed cases of low self-responsibility and effort. The contribution covers case studies of CDIO based projects, as well as the concept of the Code of Ethics of Software Engineering in itself.According CDIO, using the Code of Ethics in education should have relevance to several points of the CDIO syllabus, such as, 2.4 Attitudes, Thought and Learning, and 2.5 Ethics, Equity and Other responsibilities. The case studies as such, furthermore relate to aspects such as team work and communication, besides the core of the CDIO intension of driving student projects.
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| 32. |
- Einarson, Daniel, 1960-
(author)
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Inheritance and coroutines
- 1998
-
In: ASU Newsletter. ; 24:3
-
Journal article (other academic/artistic)
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| 33. |
- Einarson, Daniel, et al.
(author)
-
Learning structures of CDIO based projects in contexts of Demola
- 2015
-
Conference paper (peer-reviewed)abstract
- Academia plays a main role in knowledge discovery and dissemination of knowledge. Amongst the fundamental reasons behind university education lies preparing students to use and contribute with that knowledge within contexts of industry, as well as society in large. We here see three types of actors, i.e., universities, students, and industry, which by several reasons all are gained by close cooperation already in university education. Quite often though we see a gap between education and possible student recruitment. Here, the value of being employable increases through work based projects supported by education. Even though we can see willingness according such kind of cooperation from both academia and industry, experiences show that there are barriers towards actually implementing this. That may in turn depend on common lack of knowledge on how to establish university-industry connections, and how to negotiate on student involvement, ownership of work, etc. Conclusions therefore show a need for an established organization that mediates between academia and industry, and that have well developed structures for project workflow, project result ownership, etc. Demola may here have that role as an award winning platform for industry driven projects with focus on students. Demola provides a win-win-win relationship between university, students, and industry, and has clear structures for cooperation between those. Experiences have shown that Demola is promising as a mediator, as well as a provider of multi-disciplinary industry close projects, where those may be plugged into educational programs in suitable ways. This contribution will provide an overview of Demola as a platform for industry close student projects. Demola may furthermore be used as a platform for research projects. Experiences will here be covered as a concrete example on a Demola student project. Moreover, learning outcomes in contexts of CDIO Syllabus, evaluations, and corresponding CDIO-standards, will be presented.
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| 34. |
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| 35. |
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| 36. |
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| 37. |
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| 38. |
- Einarson, Daniel
(author)
-
Progressioner inom en projekt-baserad kurs baserad på principer från Software Engineering och CDIO
- 2013
-
In: Lärarlärdom. - Kristianstad : Kristianstad University Press. ; , s. 6-25
-
Conference paper (other academic/artistic)abstract
- För att möta kraven hos anställda inom industrin för moderna datorbaserade produkter behöver utbildningsanstalterna ge studenter möjlighet att ta till sig av såväl fundamentala och långlivade teorier som de senaste teknikerna. Detta är dock inte tillräckligt. Storskaliga produkter kräver samverkan mellan grupper av utvecklare och detta faktum i sig självt sätter fokus på ytterligare utmaningar. Själva arbetsprocessen måste synkroniseras, kommunikationen mellan utvecklare måste vara effektiv, osv. För att förbereda studenter på även sådana utmaningar måste således utbildningsanstalterna dessutom anpassa undervisningen så att även arbeten i projektgrupper, kommunikation inom dessa, styrning av arbetsprocesser, förhållningssätt, mm, ges lämpliga utrymmen.CDIO är ett världsomspännande innovativt utbildningsramverk för att producera nästa generation av ingenjörer. I fokus för detta står projektbaserade undervisningsformer. Speciellt bejakar man arbetsfaserna Concieve (C), Design (D), Implement (I) och Operate (O), där man via dessa utvecklar en produkt som ska ha tillräckliga inslag av svårighet och komplexitet för att efterlikna de utmaningar man har i utveckling av verkliga produkter. Bakgrunden till detta initiativ ligger en identifiering av ett signifikant problem i teknikindustrin där man sett att utbildning av ingenjörer mestadels utgår från teoretiserade problem. Man har alltså ett gap mellan utbildningen och teknikindustrins krav. Vidare kräver reell produktutveckling samarbeten i arbetsteam, där även detta poängteras som CDIO-synvinkel.Detta bidrag har tre huvudsyften. Dels kommer det att presentera CDIO och begrepp som förekommer inom detta. Dels kommer exempel ges på en kurs i Software Engineering, som kan ses som särskilt CDIO- inspirerad. Kursen har i sin form tre år bakom sig, där stegvis utveckling gjorts speciellt med fokus på att förbättra arbetsprocessen. Inspiration för progression av kursen har tagits såväl från CDIO som från området för Software Engineering. Inspiration från Software Engineering bör ses utifrån de barnsjukdomar och mognadsprocesser denna fortfarande tämligen nya disciplin har bakom sig. Därför kommer även detta att belysas. Vidare kan materialet bakom detta bidrag även delvis ses som en sammanställning av tre på varandra följande konferensbidrag till internationellt hållna CDIO-konferenser.
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| 39. |
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| 40. |
- Einarson, Daniel, 1960-, et al.
(author)
-
Smart home techniques for young people with functional disabilities
- 2020
-
In: ACHI 2020. - 9781612087610 ; , s. 294-300
-
Conference paper (peer-reviewed)abstract
- A purpose behind the United Nation’s Agenda 2030is that no one shall be left behind, which implies that supportfor vulnerable people shall be seen as clearly significant. Inthat context, assistive technologies serve purposes of improvingdisabled individuals’ inclusiveness and overall well-being. Thiscontribution covers ongoing experiments on techniquesdeveloped for Smart Homes, where the outcomes of suchdevelopments are targeted towards young people withfunctional disabilities, in order to provide them withindependence in their own living space.
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| 41. |
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| 42. |
- Einarson, Daniel, 1960-
(author)
-
Working- vs. educational processes in software engineering vs. CDIO
- 2011
-
In: 7th International CDIO Conference 2011. - : Danmarks Tekniske Universitet, DTU. - 9788798527268 ; , s. 438-452
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Conference paper (peer-reviewed)abstract
- The relatively short history of IT can unfortunately point out a number of failing projects concerning missing deadlines, functionalities, low quality, etc. Theories and techniques have been developed, to meet inherent problems and challenges. But also software process models, that is ways of working, where several typical activities within software processes have been emphasized. Still, the use of software also seems to bring even further requirements on new techniques. A conclusion is therefore that, besides from some core fundaments, inherent parts of IT are, by necessity, evolving in themselves.When it comes to educational systems, an appropriate set of theories, techniques, and principles should be taught to prepare for working in software industry. Still, this is not enough. A software engineer actually needs to be able to handle all the steps of a software process. That is, educational systems have to find ways to support teachings, not only in theories, techniques, and principles, but also in ways of working that hopefully should correspond well to the practices of software industry. Furthermore, students should be gained by getting educational support to meet and handle the ever changing future.This contribution presents project based approaches where the process of developing the project result should have several benefits. First, it should provide a basis for training core practices of Computer Science, second it should prepare for software processes, i.e., ways of working in software industry, and third, it should aim for students being responsible for self learning. Especially, the third point is significantly important in a discipline of ever changing techniques. Inspiration is taken from well known Software Process Models. Such are models are shown to lie close to the CDIO initiative. Software Process Models are discussed, comparisons with CDIO are provided, as well as a case study on a project based course.
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| 44. |
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| 45. |
- Faraon, Montathar, 1983-, et al.
(author)
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Fake news and aggregated credibility : conceptualizing a co-creative medium for evaluation of sources online
- 2020
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In: International Journal of Ambient Computing and Intelligence (IJACI). - 1941-6237 .- 1941-6245. ; 11:4, s. 1-25
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Journal article (peer-reviewed)abstract
- The accelerated spread of fake news via the Internet and social media such as Facebook and Twitter have created a debate concerning the credibility of sources online. Assessing the credibility of these sources is generally a complex task and cannot solely rely on computer-based algorithms as evaluation still requires human intelligence. The research question guiding this article deals with the conceptualization of a theoretically anchored concept of a participatory and co-creative medium for evaluation of sources online. The concept-driven design research methodology was applied to address the research question, which consisted of seven activities that unify design and theory. The result of this article is a proposed concept that aims to support the assessment of the credibility of sources online using crowdsourcing as an approach for evaluation. The practical implications of the proposed concept could be to constrain the spread of fake news, strengthen online democratic discourse, and potentially improve the quality of online information.
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| 46. |
- Faraon, Montathar, 1983-, et al.
(author)
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From mobilization to consensus : innovating cross-media services to organize crowds into collaborative communities
- 2013
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In: CeDEM13. - : Edition Donau-Universität Krems. ; , s. 13-227
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Conference paper (peer-reviewed)abstract
- The purpose of the current paper is to contribute to the field of e-participation by presenting a design concept for mediating technology that incorporates current information technology such as social and collaborative media designed for the purposes of civic engagement in society. Such technology could empower people to mobilize and engage themselves in proactive consensus-seeking and co-creation. Social media are broadly adopted in the reactive mobilization of citizen-initiated participatory activity in society such as protests like the London riots and the Occupy movements. In our view, there is a demand to organize mobilized crowds to collaborate in a consensus-seeking manner. For instance, there does not yet exist online applications that specifically serve the purposes of massive simultaneous co-editing of documents by citizens seeking consensus in societal issues. However, as we argue, there is no reason for such not to be integrated from existing technological components that are commonly accessible.
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| 47. |
- Faraon, Montathar, 1983-
(author)
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Mobile tracking and privacy in the coronavirus pandemic
- 2020
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In: Interactions. - New York : Association for Computing Machinery (ACM). - 1072-5520 .- 1558-3449. ; 27:4, s. 50-51
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Journal article (peer-reviewed)abstract
- The worldwide pandemic of coronavirus disease (Covid-19) is testing societies, companies, and citizens. Life, health, and jobs are at stake. In this critical moment, the HCI community is working together to design, test, and execute ideas, prototypes, and solutions. HCI is working to strengthen our resistance with abilities, expertise, and methods to design intuitive solutions that are accessible, understandable, and usable. The coronavirus disease has had far-reaching consequences for public health, financial markets, and everyday life. With currently over 6 million infected and 370,000 deaths, the disease has left few people unaffected by its impact. Technological developments in transportation over the years have contributed to the rapid movement of people and, in turn, to the worldwide spread of the disease. Likewise, researchers, designers, and developers around the world are racing to understand, design, and develop digital technology to trace and mitigate the spread.
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| 48. |
- Faraon, Montathar, 1983-, et al.
(author)
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Social media affordances in net-based higher education
- 2011
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In: Proceedings of the IADIS International Conference on International Higher Education (IHE 2011). - Shanghai, China : IADIS Press. - 9789728939564 ; , s. 11-37
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Conference paper (peer-reviewed)abstract
- This paper explores the attitudes, conceptions and use of social media in net-based higher education. By using statistical and content analysis of data generated by two surveys directed to students (n = 109) and teachers (n = 77) involved in net-based higher education, we explore how social media influence the design of learning context in net-based higher education courses. By applying the affordance theory, we describe actual as well as preferred use of social media from an educational, social, and technical perspectives. The results showed that the potential use of social media have not yet been fully found in the context of net-based higher education. However, the perceived benefit of using social media differs in relation to educational topics. The potential use of social media in net-based higher education courses is discussed.
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| 49. |
- Faraon, Montathar, 1983-
(author)
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Webbutveckling med PHP och MySQL
- 2016. - 2
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Book (other academic/artistic)abstract
- PHP är ett av de ledande programmeringsspråken för webbutveckling. Det är ett flexibelt och enkelt språk som används för att skapa dynamiska webbplatser. Denna bok ger en tillgänglig introduktion till PHP och databashantering. Läsaren får den kunskap som krävs för att snabbt utveckla egna webbapplikationer.Boken förutsätter inga tidigare erfarenheter av webbprogrammering. Läsaren leds framåt genom ett rikt utbud av övningar som ger möjlighet att tillämpa innehållet.Denna andra utgåva av boken har reviderats och uppdaterats grundligt. Bland nyheterna finns PHP 7, databashantering med PHP Data Objects (PDO), fler helhetsexempel samt kodexempel i färg.Webbutveckling med PHP och MySQL är avsedd för universitets- och gymnasiestudier i webbprogrammering, men är även en handbok för yrkesverksamma webbutvecklare och programmerare.
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| 50. |
- Gren, Lucas, 1984, et al.
(author)
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Agility is responsiveness to change: An essential definition
- 2020
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In: 24th Conference on Evaluation and Assessment in Software Engineering (EASE2020). - New York, NY, USA : Association for Computing Machinery. - 2153-1633.
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Conference paper (peer-reviewed)abstract
- There is some ambiguity of what agile means in both research and practice. Authors have suggested a diversity of different definitions, through which it is difficult to interpret what agile really is. The concept, however, exists in its implementation through agile practices. In this vision paper, we argue that adopting an agile approach boils down to being more responsive to change. To support this claim, we relate agile principles, practices, the agile manifesto, and our own experiences to this core definition. We envision that agile transformations would be, and are, much easier using this definition and contextualizing its implications.
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