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| 2. |
- Gustafson, Carl, et al.
(author)
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Modeling the cluster decay in mm-wave channels
- 2014
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In: 8th European Conference on Antennas and Propagation, EuCAP 2014. - 9788890701849 ; , s. 803-807
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Conference paper (peer-reviewed)abstract
- © 2014 European Association on Antennas and Propagation.The cluster power is an important parameter for cluster-based wireless channel models. This paper addresses modeling and estimation of the cluster power for wireless channels. A novel way of estimating the cluster decay and cluster fading, where the effects of the noise floor is taken into account, is presented. Due to the noise floor present in the measurement, only a limited number of clusters are available when estimating the cluster decay. It is shown that the estimated cluster decay and cluster fading can be improved if the effects of the noise floor and cluster fading are modeled and taken into account in the estimation step. If the noise floor is not taken into account in the estimation of the cluster decay, the resulting model can overestimate the RMS delay spread. Further, the paper includes estimates of the cluster decay and fading based on measured clusters for an indoor wireless mm-Wave channel in a conference room environment.
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| 3. |
- Hedvall, Per-Olof, et al.
(author)
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Towards 3rd Generation Universal Design: Exploring Nonclusive Design
- 2022
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In: Transforming our World through Universal Design for Human Development, Proceedings of the Sixth International Conference on Universal Design, 7-9 September 2022, Brescia, Italy / Ilaria Garofolo, Giulia Bencini, Alberto Arenghi (eds.). - Amsterdam : IOS Press. - 0926-9630 .- 1879-8365. - 9781643683041
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Conference paper (peer-reviewed)abstract
- In this paper, we identify and describe early signs of a shift towards 3rd generation UD, of which “nonclusive design” is an essential part. The paper explores the significance of such a shift using examples of the built and designed environment and of signage. Nonclusive design means design that resists categorisations of bodies/roles and that does not come with predefined or presupposed limits in terms of who it is meant for. We outline seven themes characterising the shift towards nonclusive design: 1) from included to undefined users, 2) from person to function, 3) from adaptism to variation, 4) from separation to convergence, 5) from reactive to proactive, 6) from unaware to aware, and 7) from explicit to tacit. Nonclusive design directs attention to context instead of the individual, focusing on possibilities, functions and facilities. It has a convergent character, highlighting variation and unity rather than separation. Nonclusive design presupposes awareness, knowledge and proactive development void of adaptism. It incorporates human variation without reiterating patterns of norm-deviation. We argue that the continued growth of UD demands, is part of, and contributes to a shift in culture, with nonclusive, intersectional thinking as a key future driver. In such a culture, 3rd generation UD can contribute as a common guiding mindset, as a source for innovation, as a way to listen for diversity in all its forms, and as a way to lead towards a sustainable society.
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| 4. |
- Hedvall, Per-Olof, et al.
(author)
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Moving Beyond Human Bodies on Display : Signs of a Shift in Categorisation
- 2022
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In: DAI - Il Disegno per l’Accessibilità e l’Inclusione. - Milano : Publica. - 9788899586256 ; , s. 48-59
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Conference paper (peer-reviewed)abstract
- In this paper, we explore signs on toilet doors. Our aim is to contribute to an enhanced understanding of how goals and ambitions regarding inclusion are realised in design processes. We identify and outline three patterns for inclusive signage: 1) Addition, where inclusive signage is accomplished by adding more pictograms of different persons, 2) Combination, where inclusive signage is accomplished by composite pictograms, 3) what we choose to call Nonclusion, where nonclusive signage is accomplished by not depicting persons, bodies, or roles at all. We end by discussing the three patterns in terms of a growing unease towards inclusion as such and with the prevailing patterns of categorisation of people, bodies, and roles.
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| 5. |
- Kokkinakis, Dimitrios, 1965, et al.
(author)
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Investigating the Effects of MWE Identification in Structural Topic Modelling
- 2023
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In: 19th Workshop on Multiword Expressions, MWE 2023 - Proceedings. - : ACL. ; , s. 36-44
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Conference paper (peer-reviewed)abstract
- Multiword expressions (MWEs) are common word combinations which exhibit idiosyncrasies in various linguistic levels. For various downstream natural language processing applications and tasks, the identification and discovery of MWEs has been proven to be potentially practical and useful, but still challenging to codify. In this paper we investigate various, relevant to MWE, resources and tools for Swedish, and, within a specific application scenario, we apply structural topic modelling to investigate whether there are any interpretative advantages of identifying MWEs.
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| 7. |
- Pendrill, Ann-Marie, 1952, et al.
(author)
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Teacher roles during amusement park visits – insights from observations, interviews and questionnaires
- 2014
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In: ICPE-EPEC 2013 Proceedings. ; 2013, s. 591-599
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Conference paper (other academic/artistic)abstract
- Amusement parks offer rich possibilities for physics learning, through observations and experiments that illustrate important physical principles and often involve the whole body. Amusement parks are also among the most popular school excursions, but very often the learning possibilities are underused. In this work we have studied different teacher roles and discuss how universities, parks or event managers can encourage and support teachers and schools in their efforts to make amusement park visits true learning experiences for their students.
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| 9. |
- Alvén, Jennifer, 1989, et al.
(author)
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A Deep Learning Approach to MR-less Spatial Normalization for Tau PET Images
- 2019
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In: Medical Image Computing and Computer Assisted Intervention : MICCAI 2019 - 22nd International Conference, Proceedings - MICCAI 2019 - 22nd International Conference, Proceedings. - Cham : Springer International Publishing. - 1611-3349 .- 0302-9743. - 9783030322441 - 9783030322458 ; 11765 LNCS, s. 355-363
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Conference paper (peer-reviewed)abstract
- The procedure of aligning a positron emission tomography (PET) image with a common coordinate system, spatial normalization, typically demands a corresponding structural magnetic resonance (MR) image. However, MR imaging is not always available or feasible for the subject, which calls for enabling spatial normalization without MR, MR-less spatial normalization. In this work, we propose a template-free approach to MR-less spatial normalization for [18F]flortaucipir tau PET images. We use a deep neural network that estimates an aligning transformation from the PET input image, and outputs the spatially normalized image as well as the parameterized transformation. In order to do so, the proposed network iteratively estimates a set of rigid and affine transformations by means of convolutional neural network regressors as well as spatial transformer layers. The network is trained and validated on 199 tau PET volumes with corresponding ground truth transformations, and tested on two different datasets. The proposed method shows competitive performance in terms of registration accuracy as well as speed, and compares favourably to previously published results.
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| 10. |
- Karlsson, Johan, et al.
(author)
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Laplace model for multi-axial responses in fatigue analysis of a cultivator frame
- 2014
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In: Proceedings of the 3rd International Commercial Vehicle Technology Symposium (CVT 2014). ; , s. 141-150, s. 141-150
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Conference paper (peer-reviewed)abstract
- This paper reviews means for fatigue damage rates estimation using Laplace distributed multiaxial loads. The model is suitable for description of stresses containing transients of random amplitudes and locations. Explicit formulas for computing the expected value of rainflow damage index as a function of excess kurtosis are given for correlated loads. A Laplace model is used to describe variability of forces and bending moments measured at some location on a cultivator frame. An example of actual cultivator data is used to illustrate the model and demonstrate the accuracy of damage index prediction.
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