SwePub - sökning: WFRF:(Knutsson Ola)

Numrering	Referens	Omslagsbild	Hitta
1.	Knutsson, Hans, et al. (författare) Modernizing the public sector : The Scandinavian way 2017 Ingår i: Modernizing the public sector : Scandinavian perspectives - Scandinavian perspectives. - Abingdon, Oxon ; New York, NY : Routledge, [2017] \| : Routledge. - 9781138675940 - 9781315560328 ; , s. 241-254 Bokkapitel (refereegranskat)abstract Looking at the Swedish public sector from a Scandinavian perspective, this chapter argues for a challenged but resilient (although not uniform) Scandi- navian public sector. Sweden is a nation with a long tradition of decentral- ized decision-making, semi-autonomous government agencies and independent local governments. This is considered a receptive context for continuous and incremental modernization. It has fostered a high degree of experimentation in terms of modes of production and distribution, albeit without the risks associated with purely market-driven social reforms based on privatization of both production and financing. The variations on the Swedish modernization theme are many, involving various forms of mar- ketization initiatives, boundary-spanning cooperative efforts and an open attitude and willingness towards trying and sharing experiences. High levels of transparency and trust are two initial traits signifying the Scandinavian public sector, which have been both amplified and challenged by the NPM agenda. The inherent strive of NPM for compartmentalization, quantifica- tion and performance measurement challenges some of the institutional glue of the welfare state, which has kept the parts together in a solid unity. Simultaneously, many NPM reforms – with their emphasis on performance measurement and reporting for increasing transparency and improving the outcomes of public polices and services – contribute both to sustained trust and welfare. The chapter concludes that Sweden keeps defending the Scan- dinavian model and values of universalism, solidarity and market independ- ence, a defence in which developments in society and future public management reforms may prove wanting.
2.	Knutsson, Hans, et al. (författare) New Public Management in a Scandinavian context 2017 Ingår i: Modernizing the public sector : Scandinavian Perspectives - Scandinavian Perspectives. - Abingdon, Oxon ; New York, NY : Routledge, [2017] \| : Routledge. - 9781138675940 - 9781315560328 ; , s. 18-34 Bokkapitel (refereegranskat)abstract This chapter gives an overview of the main NPM reforms and trends in the Nordic countries. The idea of a uniform Scandinavian model of NPM is discussed - the chapter presents the different countries as members of a shared public administration tradition, albeit with different traits and particular reforms. The Swedish constitution and the organization of the public sector in a centralized and a two-part local government structure are presented, both as a backdrop to the subsequent chapters and for a reflection about whether there is a uniqueness to be found in the Swedish NPM initiatives. The long history of decentralized public decision-making and its ramifications on the structure of the Swedish public-sector organization is given special attention. From a Scandinavian perspective, the public-sector structures and characteristics in Norway, Denmark and Finland are presented, by which the idea of a single Scandinavian model for all is discussed and contested.
3.	Bergdahl, Nina, et al. (författare) Designing for Engagement in TEL – a Teacher-Researcher Collaboration 2018 Ingår i: Designs for Learning. - : Stockholm University Press. - 1654-7608 .- 2001-7480. ; 10:1, s. 100-111 Tidskriftsartikel (refereegranskat)abstract Hence, teachers need to consider how their practices affect student engagement. Applying design-based research (DBR), the purpose of this study was to approach influencers of student engagement and explore how teachers and researchers collaboratively could develop learning activities with learning technologies (LTs) to facilitate this. The intervention included an online assessment application, a virtual learning environment (VLE) and an additional tablet for the teacher. The teacher constantly carried the tablet around and used it to access the students’ shared workspace. The intervention was implemented in two classes in an upper secondary school. The study focuses on teachers’ experience and instruction. Three observations of the implementation of learning design and intervention evaluations were analysed. The results indicate that the teachers and researchers could design learning activities that facilitate student engagement. Engagement was facilitated as hindrances to engagement were identified and approached. The suggested solutions shaped the design of the learning activity and included LTs which provided insights into the students’ learning processes and thereby increased the teacher’s ability to scaffold learning and provide timely feedback. The LTs used opened up for additional ways for students to engage with the content, peers and contributions which motivated students to direct their energy toward task. When conditions for learning changed as a result of implementing LTs, both student interaction and teacher practices were affected. However, it was not observed that the teacher would sustain the design without support. This emphasises the need for educational goals and visions to be consistent and communicated to practitioners; otherwise, teachers will not have the guidance needed to advance or evaluate their professional development.
4.	Bergdahl, Nina, et al. (författare) Engagement, disengagement and performance when learning with technologies in upper secondary school 2020 Ingår i: Computers and education. - : Elsevier BV. - 0360-1315 .- 1873-782X. ; 149 Tidskriftsartikel (refereegranskat)abstract Students need to engage in order to learn. As digitalisation changes the conditions for learning, it is essential to consider how student engagement might be affected. This study explores the relationship between students' level of engagement in technology-enhanced learning (TEL) and academic outcomes. More specifically, we developed and validated an instrument LET (Learner–Technology–Engagement) using principal component analysis and confirmatory factor analysis, and distributed this to second and third year upper secondary school students. We then matched student responses (n = 410) with their school grades. Using a bivariate correlation test, a one-way ANOVA test, and a post hoc test, we analysed the associations between low-, average-, and high-performance students and their reported engagement and disengagement when learning with technologies. The analysis reveals that high-performance students find it easier to concentrate when working with learning technologies than do average and low performers. We also found significant correlations between low grades and reported time spent on social media and streaming media for other purposes than learning (e.g., YouTube). There were also significant correlations between a decrease in students’ performance and the occurrence of unauthorised multi-tasking via learning technologies while in class: the lower the grades, the more frequently students reported using digital technologies to escape when lessons were boring. Conclusively: high-performance students seem to develop strategies to use digital technologies in supportive and productive ways. Thus, in order for schools to use digital technologies to ensure that disadvantaged students do not remain disadvantaged when learning with technologies and to not replicate problems in analogue classroom interactions, insights how different performance groups engage and disengage in TEL is critical for learning.
5.	Bergdahl, Nina, et al. (författare) ‘So, You Think It’s Good’ - Reasons Students Engage When Learning with Technologies – a Student Perspective 2018 Ingår i: EDULEARN18. - : The International Academy of Technology, Education and Development. - 9788409027095 ; , s. 9556-9563 Konferensbidrag (refereegranskat)abstract Student engagement is significantly related to school success. With the increasing digitalisation of education, it is essential to explore if student engagement is affected by the uptake of learning technologies (LTs). The aim of this study was to approach what factors students perceive to influence their engagement when learning with technologies. This was done by asking students to report their level of engagement and fill in a questionnaire to evaluate a classroom intervention designed to facilitate engagement. The intervention included a learner assessment application, a virtual learning environment (VLE) And a separate tablet the teacher used to access the shared workspace. These LTs facilitated instant feedback between the teacher and the students and enabled multiple simultaneous dialogues which allowed all students to engage with both content and peers. Results show that students’ invested effort in learning activities were related to their reported levels of engagement. Surprisingly, in this intervention, control and stress showed no correlation with engagement. Some aspects of peer modelling and feedback showed weak correlations, albeit these were non-significant. Instead, students reported that feeling ‘content with one’s outcomes’ and ‘engaging in learner-centred dialogues’ were their main reasons to engage. Moreover, students’ reasons to engage in short tasks were not the same as their reasons to engage with long-term goals, such as completing their assignment. The results show that conditions for learning changed when implementing LTs. As conditions for learning changed, so did students’ reasons to engage. Moreover, insights into students’ reasons to engage and reported levels of engagement to suggest that obtaining this information can be useful to identify students in at-risk zones and offer them the support needed. Orchestration of inclusive engagement and implications for future designs are discussed.
6.	Bergdahl, Nina, et al. (författare) The Use of Learning Technologies and Student Engagement in Learning Activities 2018 Ingår i: Nordic Journal of Digital Literacy. - : Scandinavian University Press / Universitetsforlaget AS. - 1891-943X .- 0809-6724. ; 13:2, s. 113-130 Tidskriftsartikel (refereegranskat)abstract As digitalisation spreads in education, it is vital to understand its relation to student engagement. We used student diaries and observation data to approach student engagement and explore the use of learning technologies on a lesson-to-lesson basis. Results show that a less thought-through use of technologies might lead to unconsidered effects. Positive indicators of the facilitation of student engagement included making the learning process accessible and visible to teachers.
7.	Bergdahl, Nina, 1971- (författare) Upper Secondary School Student Engagement and Disengagement : in Blended Learning 2020 Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract The present research approaches Swedish upper secondary school students’ engagement and disengagement in Technology-enhanced Learning (TEL). To date, research on engagement in TEL have mainly focused on university-level students and have overlooked the dimension of disengagement. The aim of the thesis is to explore how to facilitate students’ academic engagement in TEL by considering both student engagement and disengagement when students learn with digital technologies. While a mixed-methods approach was adopted across all sub-studies, sub-studies I-III emphasised qualitative methods, and sub-studies IV-V were more quantitatively orientated.Results revealed that teachers’ orchestration of digital technologies for learning varied more between the individual teachers than the subjects taught, and that the orchestration of digital technologies and the design of learning activities covaried with the observed and self-reported levels of student engagement. A Design-Based Research intervention showed that teachers could orchestrate digital technologies and design learning activities that increase student engagement in TEL, but may find it challenging to sustain the practice without support. A student evaluation showed that only the students with the highest engagement levels reported interest as their reason to engage. Instead, the most common reasons to engage were related to the social dimension of engagement. Building on the results of this intervention, design principles that facilitate student engagement when designing for engagement in TEL were identified.After the intervention, the focus was expanded to include student disengagement along with engagement and The Learner-Engagement-Technology (LET) instrument was developed using interviews and theory. The LET instrument was tested and validated to reflect multi-dimensional aspects of upper secondary school student engagement and disengagement in TEL. The LET-instrument revealed that low-, average- and high-performance students engage and disengage differently in TEL; that students’ IT skills played a role for engagement in TEL, but are not sufficient to redeem disengagement and that a majority of students use digital technologies to escape when the lesson is perceived to be boring. The results also showed that indicators of disengagement in TEL do not have a natural opposite in the engagement scale; that is; disengagement in TEL is more than the mere absence of, or lower levels of, engagement in TEL. Overlooking disengagement, when students learn with technologies, might fail to uncover critical insights that hinder student engagement.The main contributions of this thesis are: (i) derived design principles and practical insights on conditions related to student engagement and disengagement in TEL that may inform designs of learning activities to facilitate engagement (ii) a methodological contribution that reflects an attempt to combine critical realism and Design-Based Research, and (iii) a theoretical contribution that suggests how engagement and disengagement may be understood and conceptualised in TEL. Future research should explore engagement and disengagement in TEL, relating to the uptake of digital technologies in earlier school years, and other school forms. The thesis is relevant for teachers, decision makers, researchers and others interested in understanding the challenges and possibilities that may affect students in a digitalised school.
8.	Bigert, Johnny, et al. (författare) Automatic Evaluation of Robustness and Degradation in Tagging and Parsing 2003 Ingår i: Proceedings of the International Conference Recent Advances in Natural Language Processing 2003. - Borovets, Bulgaria. Konferensbidrag (refereegranskat)abstract We address the topic of automatic evaluationof robustness and performance degradation inparsing systems. We focus on one aspect of robustness, namely ill-formed sentences and the impact of spelling errors on the different componentsof a parsing system. We propose anautomated framework to evaluate robustness, where ill-formed and noisy data is introducedusing an automatic tool and fed to the parsingsystem. With increasing levels of noise, the performanceof a system will inevitably degrade, and the question is to what extent? The experiments show a graceful degradation in performancefor both state-of-the-art taggers usedand a Swedish shallow parser. The automatednature of the evaluation allows easy and reproducibleevaluation of the individual componentsof a parsing system.
9.	Bigert, Johnny, et al. (författare) Grammar checking for Swedish second language learners 2004 Ingår i: CALL for the Nordic Languages. - Copenhagen Business School : Samfundslitteratur. - 8759311762 ; , s. 33-47 Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract Grammar errors and context-sensitive spelling errors in texts written by second language learners are hard to detect automatically. We have used three different approaches for grammar checking: manually constructed error detection rules, statistical differences between correct and incorrect texts, and machine learning of specific error types. The three approaches have been evaluated using a corpus of second language learner Swedish. We found that the three methods detect different errors and therefore complement each other.
10.	Bigert, Johnny, et al. (författare) Unsupervised evaluation of parser robustness 2005 Ingår i: COMPUTATIONAL LINGUISTICS AND INTELLIGENT TEXT PROCESSING. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 3540245235 ; , s. 142-154 Konferensbidrag (refereegranskat)abstract This article describes an automatic evaluation procedure for NLP system robustness under the strain of noisy and ill-formed input. The procedure requires no manual work or annotated resources. It is language and annotation scheme independent and produces reliable estimates on the robustness of NLP systems. The only requirement is an estimate on the NLP system accuracy. The procedure was applied to five parsers, and one part-of-speech tagger on Swedish text. To establish the reliability of the procedure, a comparative evaluation involving annotated resources was carried out on the tagger and three of the parsers.
11.	Bigert, Johnny, et al. (författare) Unsupervised Evaluation of Parser Robustness 2005. - 1 Konferensbidrag (refereegranskat)
12.	Blåsjö, Mona, et al. (författare) Att skriva för att lära i digital miljö 2014 Ingår i: Resultatdialog 2014. - Stockholm : Vetenskapsrådet. - 9789173072472 ; , s. 109-119 Bokkapitel (övrigt vetenskapligt/konstnärligt)
13.	Blåsjö, Mona, 1960-, et al. (författare) Att skriva för att lära i digitala miljöer 2014 Ingår i: Resultatdialog 2014. - Stockholm : Vetenskapsrådet. - 9789173072472 ; , s. 109-119 Bokkapitel (övrigt vetenskapligt/konstnärligt)
14.	Blåsjö, Mona, et al. (författare) Exploring the Design Space of Genre Pedagogy and Virtual Learning Environments 2012 Ingår i: Designs for Learning 2012. - 9788799532803 ; , s. 75-77 Konferensbidrag (refereegranskat)abstract This paper explores the design space of genre pedagogy and virtual learning environments. This is done by examining the cornerstones of genre pedagogy and the main activities they give raise to, and how the activities are transformed when they are partly or completely moved from the classroom to virtual learning environments, and what implications for interaction design they give raise to.
15.	Borga, Magnus, 1965-, et al. (författare) A canonical correlation approach to exploratory data analysis in fMRI 2002 Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract A computationally efficient data-driven method for exploratory analysis of functional MRI data is presented. The basic idea is to reveal underlying components in the fMRI data that have maximum autocorrelation. The tool for accomplishing this task is Canonical Correlation Analysis. The proposed method is more robust and much more computationally efficient than independent component analysis, which previously has been applied in fMRI.
16.	Borga, Magnus, et al. (författare) Blind Source Separation of Functional MRI Data 2002 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
17.	Bromark, Kristina, et al. (författare) Co-designing a dynamic tool to enhance participation for young people : A participatory design project with young service users and social workers 2023 Ingår i: Children and youth services review. - : Elsevier. - 0190-7409 .- 1873-7765. ; 147 Tidskriftsartikel (refereegranskat)abstract There is an emphasis on user participation in social work. The arguments derive from both a democratic and a consumerist approach, aiming on the one hand to equalize power between users and professionals, and on the other hand, for more efficient and legitimized services. However, research shows that there is a lack of knowledge about methods and conditions for realizing user participation in social services. In this exploratory study, grounded in participatory design, a set of four workshops took place, enabling young people, social workers and researchers to participate in the design process. The data were analysed with affinity analysis, a technique whereby the data are sorted with “I” labels, to stay close to the material. Also, written feedback and reflections from participants as well as oral feedback and reflections were generated, documented and integrated with the affinity analysis. The main findings concern how the participatory approach revealed tensions between the participants’ different perspectives on user participation, which in turn contributed to the shaping of a dynamic tool. The findings imply that the tool needed to be both “fair and square” to ensure equality for all young people, and dynamic and flexible to meet the uniqueness of each young person. Moreover, the tool needed to be both rich and contextualized to meet the need for information and participation throughout the transition process, and simple and accessible to meet the acute nature of many transitions as well as the overall time constraints within social work practice. The research process reached the level of contribution, with involvement in some but not all stages labelled as collaboration. The wide range of expertise involved in the design process provides a good basis for the tool to be able to address the need for increased user participation in social work practice.
18.	Brun, Anders, et al. (författare) Computing Riemannian Normal Coordinates on Triangle Meshes Annan publikation (övrigt vetenskapligt/konstnärligt)abstract Imagine an ant walking around on the curved surface of a plant, a radio amateur planning to broadcast to a distant location across the globe or a pilot taking o from an airport - all of them are helped by egocentric maps of the world around them that shows directions and distances to various remote places. It is not surprising that this idea has already been used in cartography, where it is known as Azimuthal Equidistant Projection (AEP). If Earth is approximated by a sphere, distances and directions between two places are computed from arcs along great circles. In physics and mathematics, the same idea is known as Riemannian Normal Coordinates (RNC). It has been given a precise and general denition for surfaces (2-D), curved spaces (3-D) and generalized to smooth manifolds (N-D). RNC are the Cartesian coordinates of vectors that index points on the surface (or manifold) through the so called exponential map, which is a well known concept in dierential geometry. They are easily computed for a particular point if the inverse of the exponential map, the logarithm map, is known. Recently, RNC and similar coordinate systems have been used in computer graphics, visualization and related areas of research. In Fig. 1 for instance, RNC are used to produce a texture on the Stanford bunny through decal compositing. Given the growing use of RNC, which is further elaborated on in the next section, it is meaningful to develop accurate and reproducible techniques to compute this parameterization. In this paper, we describe a technique to compute RNC for surfaces represented by triangular meshes, which is the predominant representation of surfaces in computer graphics. The method that we propose has similarities to the Logmap framework, which has previously been developed for dimension reduction of unorganized point clouds in high-dimensional spaces, a.k.a. manifold learning. For this reason we sometimes refer to it as "Logmap for triangular meshes" or simply Logmap.
19.	Carlberger, Johan, et al. (författare) The development and performance of a grammar checker for Swedish : A language engineering perspective 2004 Ingår i: Natural Language Engineering. - 1351-3249 .- 1469-8110. ; 1:1 Tidskriftsartikel (refereegranskat)abstract This article describes the construction and performance of Granska – a surface-oriented system for grammar checking of Swedish text. With the use of carefully constructed error detection rules, written in a new structured rule language, the system can detect and suggest corrections for a number of grammatical errors in Swedish texts. In this article, we specifically focus on how erroneously split compounds and disagreement are handled in the rules. The system combines probabilistic and rule-based methods to achieve high efficiency and robustness. The error detection rules are optimized using statistics of part-of-speech bigrams and words in a way that each rule needs to be checked as seldom as possible. We have found that the Granska system with higher efficiency can achieve the same or better results than systems with conventional technology.
20.	Cerratto-Pargman, Teresa, et al. (författare) Exploring Teachers’ perspectives on the use of Mobile devices for Math and Language Learning 2014 Ingår i: Conference proceedings. - Stockholm : Stockholm University. Konferensbidrag (refereegranskat)
21.	Cerratto-Pargman, Teresa, et al. (författare) Materiality of Online Students’ Peer-Review Activities in Higher Education 2015 Ingår i: Exploring the Material Conditions of Learning: The Computer Supported Collaborative Learning (CSCL) Conference 2015. - : International Society of the Learning Sciences. - 9780990355069 ; , s. 308-315 Konferensbidrag (refereegranskat)abstract In spite of the widespread use of technology in higher education, discourses on learning technologies commonly account for their features as disembodied from their use. There has so far been few theoretical approaches which have delved into "the technology question" in CSCL. We present an empirical study that investigates how students’ peer-review activities are entangled with sociomaterial aspects of mediated collaborative learning. The students' peer-review activities were analyzed according to the Collective Instrument-mediated Activity Situation (CIAS) model, and findings show that the materiality of two different tools had considerable influenced how students engaged with the texts and how they interacted with each other.
22.	Cerratto-Pargman, Teresa, et al. (författare) Purposeful Learning Across Collaborative Educational Spaces 2014 Ingår i: Learning and becoming in practice. - : International Society of the Learning Sciences. - 9780990355052 ; , s. 1597-1598, s. 1597-1598 Konferensbidrag (refereegranskat)abstract This paper presents the overall goals and preliminary results of an on-going research project that aims at: understanding the intricacies and complexities of introducing mobile technologies into schools’ curriculum and accepted teaching practices; analyzing actual transformations that the use of mobile technologies in schools brings to contemporary forms of learning. The results of the project will contribute to a better understanding of new media literacies and their implications for curriculum design and everyday educational practices.
23.	Cerratto-Pargman, Teresa, et al. (författare) Purposeful Learning Across Collaborative Educational Spaces 2014 Ingår i: 11 th International conference of the learning sciences. - New York : International Society of the Learning Sciences. - 9780990355038 ; , s. 1597-1598 Konferensbidrag (refereegranskat)
24.	Cerratto-Pargman, Teresa, et al. (författare) The use of social annotations tools in higher education 2014 Ingår i: Conference proseedings. - Stockholm : Stockholm University. Konferensbidrag (refereegranskat)
25.	Cerratto-Pargman, Teresa, et al. (författare) User Centered Development of Automatic E-mail Answering for the Public Sector 2012 Ingår i: Human-Computer Interaction, Tourism and Cultural Heritage. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642339431 - 9783642339448 ; , s. 154-156 Konferensbidrag (refereegranskat)abstract In Sweden, the use of e-mail by the public sector has become a key communication service between citizens and governmental authorities. Although the integration of e-mail in the public sector has certainly brought citizens and handling officers closer, it has also introduced a particular vision on governmental authorities such as for instance the idea that public service and information should be available to citizens any time, anywhere. Such a belief among citizens puts certainly high demands on the quality and efficiency of the e-service governmental authorities are capable to provide. In fact, the growing number of citizens’ electronic requests must be accurately answered in a limited time. In the research project IMAIL (Intelligent e-mail answering service for eGovernment) [1], we have focused on the work carried out at the Swedish Social Insurance Agency (SSIA) that exemplifies a governmental authority dealing with 500,000 emails per year on top of face-to face meetings, phone calls and chat communication. With the objective of creating an e-mail client capable to ease and ensure the quality of SSIAs’ handling officers public service, we have developed a prototype that: (1) automatically answer a large part of simple questions in the incoming e-mail flow, (2) improve the quality of the semi- automatic answers (i.e. answer templates), and finally, (3) reduce the workload for the handling officers. The development of the prototype is grounded in an empirical study conducted at the SSIA. The study comprises the analysis and clustering of 10,000 citizens e-mails and the working activity of 15 handling officers that were collected through questionnaires, interviews and workshops [2].
26.	Dalianis, Hercules, et al. (författare) Using human language technology to support the handling officers at the Swedish Social Insurance Agency 2009 Ingår i: Design and Evaluation of e-Government Applications and Services. ; , s. 30-32 Konferensbidrag (refereegranskat)abstract The Swedish Social Insurance Agency, (Försäkringskassan) receives 40 000 per month as well as phone calls from the citizens that are handled by almost 500 handling officers. To initiate the process to make their work more efficient we carried out two user-centered design workshops with the handling officers at Försäkringskassan with the objective of finding in what ways human language technology might facilitate their work. One of the outcomes from the workshops was that the handling officers required a support tool for handling and answering e-mails from their customers. Three main requirements were identified namely to find the correct template to be used in the e-mail answers, a support to automatically create templates and finally an automatic e-mail answering function. We will during two years focus on these design challenges within the IMAIL-project.
27.	Dalianis, Hercules, et al. (författare) Using human language technology to support the handling officers at the Swedish Social Insurance Agency 2009 Ingår i: Workshop on Design & Evaluation of e-Government Applications and Services (DEGAS’2009). Konferensbidrag (refereegranskat)
28.	Domeij, Rickard, et al. (författare) Different ways of evaluating a Swedish grammar checker 2002 Ingår i: Proceedings of the third international conference on language resources and evaluation (LREC). ; , s. 262-267 Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract Three different ways of evaluating a Swedish grammar checker are presented and discussed in this article. The first evaluationconcerns measuring the program's detection capacity on five text genres. The measures (precision and recall) are often used inevaluating grammar checkers. However, in order to test and improve the usability of grammar checking software, they need to becomplemented with user-oriented methods. Consequently, the second and the third evaluations presented in the article both involveusers. The second evaluation focuses on user reactions to grammar error presentations, especially with regard to false alarms anderroneous error identification. The third and last evaluation focuses on problems in supporting users' cognitive revision processes. Italso examines user motives behind choosing to correct or not to correct problems highlighted by the program. Advantages anddisadvantages of the different evaluation methods are discussed.
29.	Domeij, Rickard, et al. (författare) Workshop on NLP for Reading and Writing : Resources, algorithms and tools 2008 Ingår i: Swedish Conference of Language Technology, 2008. - 1736-6305. ; VOL. 3 Konferensbidrag (refereegranskat)abstract New tools and media are creating new possibilities for people to communicate and find information over the Internet in a multilingual, global society. This is reflected in the fact that writers now write more in everyday life, typically create text directly on the computer and on the Internet (e.g. on blogs and other Web 2.0 technologies), and use new forms of writing in e-mails, web chats or SMS-messages on mobile phones. This concerns not only adults at work, but also children and youth. However, the new possibilities also put higher demands on our skills in using language for achieving our communicative goals in different situations. If the demands are not met, a great number of people will risk being excluded from participation in the emerging information society. Of course, this will have unfortunate consequences not only for the individual, but also for society at large. Therefore, there is a growing need for support in reading and writing. Certainly, there already exists writing tools such as authoring aids in word processors and instructional support in writing education. However, existing solutions have great difficulties meeting the growing need of support. In part, this is due to technical limitations of the tools in processing language, but also to the fact that these tools are poorly adjusted to different tasks, target user groups, genres and media.
30.	Editorial for the Special Collection: Remediation of Learning 2023 Ingår i: Designs for Learning. - : Stockholm University Press. - 2001-7480. Samlingsverk (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract This special collection contains articles from participants in the 7th International Designs for Learning Conference – Remediation of Learning. The focus of the conference and the special collection is on current changes in the designs of information and knowledge representations and their consequences on how we understand and evaluate learning and communication.The conference was held in May 2021 and due to the pandemic it was run digitally through Zoom. A total of 43 abstracts were submitted, and all delegates were invited to submit a full paper to the Designs for Learning Journal. Five articles were finally included in the special collection and are presented below, along with an acknowledgement of the abstracts presented during the conference.
31.	Eklund, Anders, et al. (författare) A GPU accelerated interactive interface for exploratory functional connectivity analysis of FMRI data 2011 Ingår i: Image Processing (ICIP), 2011. - : IEEE. - 9781457713040 ; , s. 1589-1592 Konferensbidrag (refereegranskat)abstract Functional connectivity analysis is a way to investigate how different parts of the brain are connected and interact. A common measure of connectivity is the temporal correlation between a reference voxel time series and all the other time series in a functional MRI data set. An fMRI data set generally contains more than 20,000 within-brain voxels, making a complete correlation analysis between all possible combinations of voxels heavy to compute, store, visualize and explore. In this paper, a GPU-accelerated interactive tool for investigating functional connectivity in fMRI data is presented. A reference voxel can be moved by the user and the correlations to all other voxels are calculated in real-time using the graphics processing unit (GPU). The resulting correlation map is updated in real-time and visualized as a 3D volume rendering together with a high resolution anatomical volume. This tool greatly facilitates the search for interesting connectivity patterns in the brain.
32.	Eklund, Anders, et al. (författare) Comparing fMRI Activity Maps from GLM and CCA at the Same Significance Level by Fast Random Permutation Tests on the GPU 2011 Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract Parametric statistical methods are traditionally employed in functional magnetic resonance imaging (fMRI) for identifying areas in the brain that are active with a certain degree of statistical significance. These parametric methods, however, have two major drawbacks. First, it isassumed that the observed data are Gaussian distributed and independent; assumptions that generally are not valid for fMRI data. Second, the statistical test distribution can be derived theoretically only for very simple linear detection statistics. In this work it is shown how the computational power of the Graphics Processing Unit (GPU) can be used to speedup non-parametric tests, such as random permutation tests. With random permutation tests it is possible to calculate significance thresholds for any test statistics. As an example, fMRI activity maps from the General Linear Model (GLM) and Canonical Correlation Analysis (CCA) are compared at the same significance level.
33.	Eliasson, Johan, et al. (författare) Evaluating Interaction with Mobile Devices in Mobile Inquiry-Based Learning 2012 Ingår i: WMUTE '12 Proceedings of the 2012 IEEE Seventh International Conference on Wireless, Mobile and Ubiquitous Technology in Education. - Washington, DC, USA : IEEE Computer Society. - 9780769546629 ; , s. 92-96 Konferensbidrag (refereegranskat)abstract We evaluate to what extent students are interacting with mobile devices in one of four ways intended in the design of a mobile learning activity. Video data from one class of fifth grade students were analyzed using a model of four different types of interaction. The evaluation shows that the students interacted with the devices in the ways intended in design 64% of the time. The contribution is an approach for translating learning goals to interaction design goals in mobile learning research. We conclude that this approach can be of value in designing and evaluating interaction with mobile devices for an entire mobile learning activity.
34.	Eliasson, Johan, et al. (författare) Six ways of interacting with mobile devices in mobile inquiry-based learning 2012 Ingår i: Proceedings of the IADIS International Conference Mobile Learning 2012. - 9789728939663 ; , s. 67-74 Konferensbidrag (refereegranskat)abstract We design a mobile learning activity with the aim of supporting inquiry-based learning and analyze it to understand how students interact with mobile devices. For analysis we use a model of contextual human-technology interaction, which is an expansion of an older model by Buxton (1995). Our research question is: How can student interaction in a mobile learning activity be described in the model of contextual human-technology interaction? We approach this question by analyzing an eight minute long video clip of a group of three students using mobile devices for calculating the distribution of trees in a forest area. We categorize the results in six different ways of interacting with technology according to the model. The analysis shows how the model of contextual human-technology interaction can be used for describing placement of technology in mobile learning activities when students are mobile in and between contexts relevant for their learning goals.
35.	Eliasson, Johan, 1977- (författare) Tools for Designing Mobile Interaction with the Physical Environment in Outdoor Lessons 2013 Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract Mobile technologies are increasingly being used to support students in outdoor learning activities. For instance, in a growing number of research projects, smartphones and positioning technologies are being used to support students in exploring the natural environment. However, previous research has identified challenges with the introduction of mobile technology into outdoor lessons. One fundamental challenge is that interaction with mobile technology in outdoor lessons may distract students from interacting with the physical environment. In this thesis this challenge is approached from the perspective of human-computer interaction, guided by the following research question: How can we design, evaluate, and reflect on mobile technology for interacting with the physical environment in outdoor lessons? The thesis presents four design cases on outdoor geometry and biology lessons, which act as probes for developing conceptual design tools. The design cases were developed through a concept-driven design approach and evaluated on field tests with primary school students. Future workshop and Interaction analysis were the main methods used. The results of the field tests suggest that mobile technology needs to be designed to orientate students in their interaction with the physical environment. In line with the concept-driven design approach, the thesis proposes three design tools. The design tools proposed are: Design guidelines that are specific enough for guiding the design of mobile technology for outdoor lessons, a Design model for designing and evaluating mobile technology for outdoor lessons, and Design concepts for reflecting on the placement of mobile technology in outdoor lessons. The design tools are proposed as tools for researchers and designers to take the challenge of distraction into account in designing mobile technology for outdoor lessons.
36.	Eliasson, Johan, et al. (författare) Using smartphones and QR codes for supporting students in exploring tree species 2013 Ingår i: Scaling up Learning for Sustained Impact. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642408137 ; , s. 436-441 Konferensbidrag (refereegranskat)abstract Smartphones are increasingly being used on field trips to support students in exploring the natural world. In this paper we present a design and analysis of an inquiry-based learning field trip for primary school students. One problem for design is how to make use of smartphones to support, rather than distract, students in interacting with the physical environment. We approach this problem by comparing two alternative designs, where students use smartphones for identifying tree species either by using an identification instrument or by reading a text description. The results show that students made use of the instrument for identification, QR codes, for identifying tree species and made use of the text descriptions for searching for tree species. In this sense, QR codes, connecting contextual information on smartphones to the physical environment, work as a learning tool that may be used for orienting students in their interaction with the physical environment.
37.	Erlandsson, Sara, 1979-, et al. (författare) Perceptions of participation: how nursing home staff and managers perceive and strive for participation of older residents : [Brukardelaktighet på äldreboenden – vad vill personal och chefer uppnå?] 2023 Ingår i: European Journal of Social Work. - : Informa UK Limited. - 1369-1457 .- 1468-2664. ; 26:5, s. 815-827 Tidskriftsartikel (refereegranskat)abstract User participation is increasingly emphasised in policies guiding social services. However, translating policy into practice is fraught with difficulties. The staff’s approaches to user participation are crucial for the users’ opportunities to participate in decision-making, particularly for users with extensive care needs and reduced autonomy. The aim of this article is to explore how nursing home staff and managers perceive the participation of older residents and what the implications are for residents’ involvement in decision-making in everyday life. Interviews and future workshops were carried out with staff and managers in two Swedish nursing homes. The analysis identified differing and partly conflicting perceptions of user participation that have different implications for the residents’ opportunities to be involved in decisions. The staff’s and managers’ approaches to participation ranged from encouraging independent decision-making to excluding the residents from decisions, depending on the situation and the assessment of residents’ abilities. In addition, the analyses showed that perceptions of participation are intertwined with perceptions of good care and with the staff’s and managers’ understandings of their mission and responsibilities. The findings indicate that increasing user participation in nursing homes requires organisational policies that clarify what user participation is and strategies for implementation in daily practice.
38.	Friman, Ola, 1975-, et al. (författare) A Correlation Framwork For Functional Mri Data Analysis. 2001 Ingår i: Proceedings of SCIA 2001. Bergen,2001. - 8299594006 ; , s. 3-9 Konferensbidrag (refereegranskat)abstract A correlation framework for detecting brain activity in functional MRI data is presented. In this framework, a novel method based on canonical correlation analysis follows as a natural extension of established analysis methods. The new method shows very good detection performance. This is demonstrated by localizing brain areas which control finger movements and areas which are involved in numerical mental calculation.
39.	Friman, Ola, et al. (författare) Adaptive analysis of fMRI data 2003 Ingår i: NeuroImage. - 1053-8119 .- 1095-9572. ; 19:3, s. 837-845 Tidskriftsartikel (refereegranskat)abstract This article introduces novel and fundamental improvements of fMRI data analysis. Central is a technique termed constrained canonical correlation analysis, which can be viewed as a natural extension and generalization of the popular general linear model method. The concept of spatial basis filters is presented and shown to be a very successful way of adaptively filtering the fMRI data. A general method for designing suitable hemodynamic response models is also proposed and incorporated into the constrained canonical correlation approach. Results that demonstrate how each of these parts significantly improves the detection of brain activity, with a computation time well within limits for practical use, are provided.
40.	Friman, Ola, 1975-, et al. (författare) Canonical correlation as a tool in functional MRI data analysis 2001 Ingår i: SSAB Symposium on Image Analysis,2001. Konferensbidrag (övrigt vetenskapligt/konstnärligt)
41.	Friman, Ola, et al. (författare) Detection and detrending in fMRI data analysis 2004 Ingår i: NeuroImage. - : Elsevier BV. - 1053-8119 .- 1095-9572. ; 22:2, s. 645-655 Tidskriftsartikel (refereegranskat)abstract This article addresses the impact that colored noise, temporal filtering, and temporal detrending have on the fMRI analysis situation. Specifically, it is shown why the detection of event-related designs benefit more from pre-whitening than blocked designs in a colored noise structure. Both theoretical and empirical results are provided. Furthermore, a novel exploratory method for producing drift models that efficiently capture trends and drifts in the fMRI data is introduced. A comparison to currently employed detrending approaches is presented. It is shown that the novel exploratory model is able to remove a major part of the slowly varying drifts that are abundant in fMRI data. The value of such a model lies in its ability to remove drift components that otherwise would have contributed to a colored noise structure in the voxel time series.
42.	Friman, Ola, et al. (författare) Detection of neural activity in fMRI using maximum correlation modeling 2002 Ingår i: NeuroImage. - : Elsevier BV. - 1053-8119 .- 1095-9572. ; 15:2, s. 386-395 Tidskriftsartikel (refereegranskat)abstract A technique for detecting neural activity in functional MRI data is introduced. It is based on a novel framework termed maximum correlation modeling. The method employs a spatial filtering approach that adapts to the local activity patterns, which results in an improved detection sensitivity combined with good specificity. A spatially varying hemodynamic response is simultaneously modelled by a sum of two gamma functions. Comparisons to traditional analysis methods are made using both synthetic and real data. The results indicate that the maximum correlation modeling approach is a strong alternative for analyzing fMRI data.
43.	Friman, Ola, 1975-, et al. (författare) Detection of neural activity in functional MRI using canonical correlation analysis 2001 Ingår i: Magnetic Resonance in Medicine. - 0740-3194 .- 1522-2594. ; 45:2, s. 323-330 Tidskriftsartikel (refereegranskat)abstract A novel method for detecting neural activity in functional magnetic resonance imaging (fMRI) data is introduced. It is based on canonical correlation analysis (CCA), which is a multivariate extension of the univariate correlation analysis widely used in fMRI. To detect homogeneous regions of activity, the method combines a subspace modeling of the hemodynamic response and the use of spatial relationships. The spatial correlation that undoubtedly exists in fMR images is completely ignored when univariate methods such as as t-tests, F-tests, and ordinary correlation analysis are used. Such methods are for this reason very sensitive to noise, leading to difficulties in detecting activation and significant contributions of false activations. In addition, the proposed CCA method also makes it possible to detect activated brain regions based not only on thresholding a correlation coefficient, but also on physiological parameters such as temporal shape and delay of the hemodynamic response. Excellent performance on real fMRI data is demonstrated.
44.	Friman, Ola, et al. (författare) Emphysema Detection in CT Images 2002 Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract This paper describes a fully automatic approach for detecting emphysema in CT im ages of the lungs. The method combines an image processing step, where potential emphysematous area s are extracted, and a neural network step trained to rec
45.	Friman, Ola, 1975-, et al. (författare) Exploratory fMRI analysis by autocorrelation maximization 2002 Ingår i: NeuroImage. - : Elsevier BV. - 1053-8119 .- 1095-9572. ; 16:2, s. 454-464 Tidskriftsartikel (refereegranskat)abstract A novel and computationally efficient method for exploratory analysis of functional MRI data is presented. The basic idea is to reveal underlying components in the fMRI data that have maximum autocorrelation. The tool for accomplishing this task is Canonical Correlation Analysis. The relation to Principal Component Analysis and Independent Component Analysis is discussed and the performance of the methods is compared using both simulated and real data.
46.	Friman, Ola, 1975-, et al. (författare) Hierarchical temporal blind source separation of fMRI data 2002 Ingår i: Proceedings of the ISMRM Annual Meeting (ISMRM'02). Konferensbidrag (refereegranskat)abstract Blind Source Separation (BSS) of fMRI data can be done both temporally and spatially. Temporal BSS of fMRI data has one fundamental problem not encountered in the spatial BSS approach. There are thousands of observed timecourses in an fMRI data set while the number of samples of each timecourse typically is less than two hundred. This re lation makes the problem of recovering the underlying temporal sources ill-posed. This contribution eliminates this problem by introducing a hierarchical approach for performing temporal BSS of fMRI data.
47.	Friman, Ola, et al. (författare) Imaging Brain Function 2002 Konferensbidrag (övrigt vetenskapligt/konstnärligt)
48.	Friman, Ola, 1975-, et al. (författare) Increased detection sensitivity in fMRI by adaptive filtering. 2001 Ingår i: Proceedings iSMRM and ESMRM meeting 2001, Glasgow,2001. ; , s. 1209-1209 Konferensbidrag (refereegranskat)
49.	Friman, Ola, 1975-, et al. (författare) Recognizing emphysema - A neural network approach 2002 Ingår i: Pattern Recognition, 2002. Proceedings. 16th International Conference on (Volume:1). - : IEEE Computer Society. ; , s. 512-515 Konferensbidrag (refereegranskat)abstract An accurate and fully automatic method for detecting and quantifying emphysema in CT-images is presented. The method is based on an image preprocessing step followed by a neural network classifier trained to separate true emphysema from artifacts. The proposed approach is shown to be superior to an established method when applied on real patient data.
50.	Hort, Sofia, 1984-, et al. (författare) Genre pedagogy for digital learning environments : Design patterns for dialogues about texts 2016 Ingår i: Proceedings of the 5th International Conference on Designs for Learning. - Aalborg : Aalborg Universitetsforlag. - 9788771125696 ; , s. 79-97 Konferensbidrag (refereegranskat)abstract The design of digital learning environments is not a neutral enterprise. The design tells about the designers’ and developers’ view of a learning activity. The main idea in this paper is to map knowledge about genre pedagogy in practice, in prospect of new applications of technology in future teaching practices. The research questions were: How is genre pedagogy implemented in traditional classrooms? How could digital learning environments be designed in order to take advantage of how genre pedagogy is implemented in traditional classrooms? The point of departure for our study is an analysis of three existing case studies of use of genre pedagogy in the classroom. The analysis indicated that genre pedagogy was adapted to the students differing writing experience. Moreover, the different stages of the method could be implemented at various times during the process and they could also be present in varying degrees. On the basis of these results, we argue for certain ways to design digital learning environments based on genre pedagogy. We use design patterns as means for making our design suggestions concrete, and available for communication and development.

Skapa referenser, mejla, bekava och länka

Länka till träfflistan

Träfflista för sökning "WFRF:(Knutsson Ola) "

Avgränsa träffmängd

År