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  • Ali Hamad, Rebeen, 1989-, et al. (författare)
  • Efficient Activity Recognition in Smart Homes Using Delayed Fuzzy Temporal Windows on Binary Sensors
  • 2020
  • Ingår i: IEEE journal of biomedical and health informatics. - Piscataway : Institute of Electrical and Electronics Engineers (IEEE). - 2168-2194 .- 2168-2208. ; 24:2, s. 387-395
  • Tidskriftsartikel (refereegranskat)abstract
    • Human activity recognition has become an active research field over the past few years due to its wide application in various fields such as health-care, smart home monitoring, and surveillance. Existing approaches for activity recognition in smart homes have achieved promising results. Most of these approaches evaluate real-time recognition of activities using only sensor activations that precede the evaluation time (where the decision is made). However, in several critical situations, such as diagnosing people with dementia, “preceding sensor activations” are not always sufficient to accurately recognize the inhabitant's daily activities in each evaluated time. To improve performance, we propose a method that delays the recognition process in order to include some sensor activations that occur after the point in time where the decision needs to be made. For this, the proposed method uses multiple incremental fuzzy temporal windows to extract features from both preceding and some oncoming sensor activations. The proposed method is evaluated with two temporal deep learning models (convolutional neural network and long short-term memory), on a binary sensor dataset of real daily living activities. The experimental evaluation shows that the proposed method achieves significantly better results than the real-time approach, and that the representation with fuzzy temporal windows enhances performance within deep learning models. © Copyright 2020 IEEE
  • Andersson, Svante, 1962-, et al. (författare)
  • How do mature born globals create customer value to achieve international growth?
  • 2020
  • Ingår i: International Marketing Review. - 0265-1335 .- 1758-6763. ; 37:2, s. 185-211
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose – This study aims to investigate how mature born global firms create value for customers to achieve continued international growth.Design/methodology/approach – The study employs a case study approach to investigate the underresearched area of how mature born globals create value for customers and, by doing so, contribute to their continued international growth. This in-depth examination of how three born globals developed over time uses interviews, observation and secondary data.Findings – The findings indicate that the entrepreneurs of born global firms, that continued to grow, created a culture in the early stages that supported value creation for foreign customers. These firms have built a competitive position by developing international niche products. They have also implemented a combination of proactive and reactive market orientation to facilitate the creation and delivery of value to customers. To maintain growth, they further invest the revenues earned on additional international marketing activities and continuously enhance their focal products.Research limitations/implications – The study relies on three cases. We therefore recommend that future studies extend the scope of the research to several companies in various industries and countries, in which the theoretical arguments can be applied. In addition, further studies that test the propositions developed in this study, in different contexts, are highly recommended.Practical implications – To gain international growth, managers should create an organizational culture that facilitates satisfying international customer needs. Firms should continuously invest in sales and market development (e.g. social media marketing, personal selling) and undertake technology development of niche rather than new products. To achieve international growth, managers need to standardize part of the offer to achieve economies of scale and adapt the other part to international customers’ needs.Originality/value – Research on born globals has focused on the early stages of their internationalization processes, while largely neglecting the later stages (mature born globals) or the factors that lead to continued international growth. To address this gap, this study explores what happens when born globals ‘grow up’. This study contributes to the literature by capturing the factors and processes underlying how mature born globals create value for customers, for international growth. In particular, the study shows that the culture and strategies developed in the born globals’ early stages also lead to international growth in later stages. The mature born globals have also invested in niche products, brand building, and effective market channels and adopted a combination of proactive and reactive market orientations.
  • Bae, Juhee, et al. (författare)
  • Interactive Clustering : A Comprehensive Review
  • 2020
  • Ingår i: ACM Computing Surveys. - New York, NY : ACM Digital Library. - 0360-0300 .- 1557-7341. ; 53:1
  • Tidskriftsartikel (refereegranskat)abstract
    • In this survey, 105 papers related to interactive clustering were reviewed according to seven perspectives: (1) on what level is the interaction happening, (2) which interactive operations are involved, (3) how user feedback is incorporated, (4) how interactive clustering is evaluated, (5) which data and (6) which clustering methods have been used, and (7) what outlined challenges there are. This article serves as a comprehensive overview of the field and outlines the state of the art within the area as well as identifies challenges and future research needs. © 2020 Copyright held by the owner/author(s).
  • Bean, Corliss, et al. (författare)
  • Longitudinal associations between perceived programme quality, basic needs support and basic needs satisfaction within youth sport : A person-centred approach
  • 2020
  • Ingår i: International Journal of Sport and Exercise Psychology. - New York : Taylor & Francis. - 1612-197X .- 1557-251X. ; 18:1, s. 76-92
  • Tidskriftsartikel (refereegranskat)abstract
    • Acknowledging the importance of longitudinal data to test process-based psychological theories of motivation is critical. The purpose of this study was to use a person-centred approach to identify unique subgroups (i.e. profiles) of youth athletes based on their level of self-reported programme quality (PQ) and basic needs support mid-way through their sport season and investigate potential differences between the subgroups on their self-reported basic needs satisfaction at the end of the sport season. The current study involved 541 Canadian youth athletes (males n = 289; females n = 250; gender-fluid n = 2) within 52 sport programmes over the course of 18 months. Youthathletes ranged in age from 8 through 19 (M = 13.76, SD = 2.61). A latent profile analysis (LPA) in Mplus 8.0 was used to carry out the analyses. The LPA revealed three distinct profiles based on youth athletes’ levels of self-reported PQ and basic needs support. Specifically, athletes who perceived their sport experience to be of higher quality and supported their basic psychological needs midway through the sport season also reported higher levels of basic needs satisfaction at season end. Results from this study contribute to the field of sport psychology through understanding how basic needs theory contributes to the dimensions of programme quality and by informing recommendations for future coach education on how to satisfy youth athletes’ basic psychological needs for autonomy, competence, and relatedness through programmedelivery. © 2018 International Society of Sport Psychology
  • Belvisi, Nicole Mariah Sharon, et al. (författare)
  • Forensic Authorship Analysis of Microblogging Texts Using N -Grams and Stylometric Features
  • 2020
  • Konferensbidrag (refereegranskat)abstract
    • In recent years, messages and text posted on the Internet are used in criminal investigations. Unfortunately, the authorship of many of them remains unknown. In some channels, the problem of establishing authorship may be even harder, since the length of digital texts is limited to a certain number of characters. In this work, we aim at identifying authors of tweet messages, which are limited to 280 characters. We evaluate popular features employed traditionally in authorship attribution which capture properties of the writing style at different levels. We use for our experiments a self-captured database of 40 users, with 120 to 200 tweets per user. Results using this small set are promising, with the different features providing a classification accuracy between 92% and 98.5%. These results are competitive in comparison to existing studies which employ short texts such as tweets or SMS. ©2020 IEEE 
  • Bengtsson, Elias, 1976-, et al. (författare)
  • Home, safe home : Cross-country monitoring framework for vulnerabilities in the residential real estate sector
  • 2020
  • Ingår i: Journal of Banking & Finance. - Amsterdam : Elsevier. - 0378-4266 .- 1872-6372. ; 112
  • Tidskriftsartikel (refereegranskat)abstract
    • This paper presents and assesses a framework for monitoring vulnerabilities related to the residential real estate sector, which can be easily employed for policy purposes. The framework provides intuitive and transparent early warning signals through a composite vulnerability measure, which aggregates indicators in a model-free way across three dimensions of real estate sector vulnerabilities (i.e. valuation, household indebtedness and the bank credit cycle). Our vulnerability measure proves to be a significant predictor of historical real estate crises, with a better forecasting performance than the majority of advantageously in-sample calibrated model-based measures. © 2018 Elsevier B.V.
  • Björkén-Nyberg, Cecilia (författare)
  • Hearing, Seeing, Experiencing : Perspective Taking and Emotional Engagement through the Vocalisation of Jane Eyre, Heart of Darkness and Things fall apart
  • 2020
  • Ingår i: International Journal of Language Studies. - Ipswich, MA : EBSCO Publishing. - 2157-4898 .- 2157-4901. ; 14:1, s. 63-88
  • Tidskriftsartikel (refereegranskat)abstract
    • Readers’ emotional engagement with fiction is a busy research area situated at the intersection of cognitive, affective and narrative theory. Perspective taking is a feature that cuts across the disciplines since the narrative situation is crucial for communicating experiences of narrators and characters in literary texts. However, what has been explored in less detail is how the vocalisation of print text facilitates an empathetic response due to the expressive impact of the human voice so that narratives may be visualised and experienced in a variety of ways. Within audionarratology, the concept of voice is undergoing a redefinition since it ceases to be textually mediated and can be experienced directly. Audiobook narration is a case in point. In the present study it is argued that empathy is a mediating agency that resides in the vocalisation of text rather than in the text itself. For the purpose of exploring this phenomenon, a pilot study was carried out. Three canonical English texts that had previously been studied in their entirety in print by a group of students were accessed in part in a remediated audio format. The listening experiment showed that the individual voice profile of each of the narrating actors had a significant impact on perspective taking and emotional engagement. © 2020 IJLS; Printed in the USA by Lulu Press Inc.
  • Blomqvist, Marjut, 1966- (författare)
  • Health among people with psychotic disorders and effects of an individualized lifestyle intervention to promote health
  • 2020
  • Doktorsavhandling (övrigt vetenskapligt)abstract
    • The overall aim of the thesis was to increase knowledge of health among people with psychotic disorders such as schizophrenia and other long-term psychotic conditions. The aim was also to investigate health effects, in terms of clinical health outcomes and self-reported questionnaires, of atwo-year individualized lifestyle intervention implemented in psychiatric outpatient services involving cooperation with the municipal social psychiatry services. The motivation for the study was to generate new knowledge in order to be able to promote health in people with psychotic disorders and to improve the care and support provided for this target group. The thesis consists of four studies. A quantitative study (Study I), was conducted using a cross-sectional design to investigate the prevalence of overweight, obesity, risk of cardiovascular disease (CVD) and the relationships between self-rated salutogenic health, sense of coherence, CVD risk, and body mass index among people with psychoticdisorders (n=57). The study was conducted in four psychiatric outpatient services; questionnaires were completed by the participants and clinical health measurements were collected by the participant’s contact nurse at the psychiatric outpatient services. The participants showed a moderate/high risk of CVD, the mean for BMI was 31.9 (59.6% were obese) and 31.6% were overweight. The results did not reveal any relationships between the subjective and objective measuresof health indicating the need for both subjective and objective assessments of health in psychiatric care. In a qualitative study (Study II), data were collected with semi-structured interviews (n=16) andanalyzed with qualitative content analysis. The interviews resulted in an overall theme “Being regarded as a whole human being by self and others”, which showed the multidimensional nature of health and the issues that enable healthy living among people with severe mental illness. Three categories emerged: (i) everyday structure (ii), motivating life events and (iii) support from significant others. The results indicate that a person with severe mental illness needs to be encountered as a wholeperson if healthy living is to be enabled. In a quasi-experimental study (Study III), the potential effects of participation in the two-year lifestyle intervention (intervention group n=54 and control group (n=13) were investigated. The data were collected at baseline, after 12 months and after 24 months using the self-reported questionnaire the Salutogenic Health Indicator Scale (SHIS), the Hopkins Symptom Checklist (HSCL-25) and the National Public Health Survey. Measures of clinical healthoutcomes were conducted by the participant’s contact nurse at the psychiatric outpatient services. Multilevel modeling was used to test differences in changes over time. Significant changes were foundin physical activity, HbA1c and waist circumference after participation in individualized lifestyle intervention. The relationship between changes in physical activity, levels of salutogenic health and glycated hemoglobin (Hb1Ac) were investigated (n=54) in Study IV. The data were collected atbaseline, after 12 months and after 24 months using the self-reported questionnaires Salutogenic Health Indicator Scale (SHIS) and National Public Health Survey. Within-person changes in physical activity between baseline and at the end of the twenty-four-month intervention were calculated. Selfreported increased physical activity was positively associated with self-rated salutogenic health and negatively associated with level of HbA1c after participation in the intervention. The thesis shows that a well-founded assessment of general health needs must consider both the individual's subjective experiences and objective measurements in order to form a solid foundation for dialogue and shareddecision-making about essential care services. The results also show that it is possible to stimulate healthy behavioral changes with a two-year individualized lifestyle intervention and bring both subjectively and objectively measured health benefits for people with psychotic disorders. The importance of nurses in psychiatric care applying a holistic approach and integrating lifestyle interventions into daily person-centered psychiatric care in collaboration with other healthcare providers to facilitate changes towards a healthy lifestyle in persons with psychotic illness is emphasized in the thesis.
  • Bonhomme, Justin, et al. (författare)
  • The career trajectories of two world champion boxers : interpretive thematic analysis of media stories
  • 2020
  • Ingår i: Sport in Society : Cultures, Media, Politics, Commerce. - Abingdon : Routledge. - 1743-0437 .- 1743-0445. ; 23:4, s. 560-576
  • Tidskriftsartikel (refereegranskat)abstract
    • Athlete development can be described through transitions that mark turning phases throughout athletes’ careers. Our authors explored media data to unpack the career developments of two prominent world champion boxers from their early lives to world championship status. Employing thematic analysis, five themes were identified: (1) weathering hardships of early life (subthemes: the rough life of an innercity kid; abject poverty in war-torn Philippines), (2) entry into sport (subthemes: groomed to fight; boxing to escape poverty), (3) amateur experience (subthemes: Olympic medallist en route to the pros; struggling amateur with dreams of greatness), (4) launching a professional career (impressive American prospect; a charismatic unpolished slugger) and (5) capturing a world title (subthemes: the much-anticipated world champion; the unexpected world champion). This exploration augments our understanding of how two worldrenowned boxers’ career developments were represented through sport media and interpreted by the researchers, suggesting parallel pathways for future career boxers and those who work with them. © 2018 Informa UK Limited, trading as Taylor & Francis Group
  • Book Jr., Robert T., et al. (författare)
  • Oatmeal is better than no meal : the career pathways of ten professional athletes from underserved communities in the United States.
  • 2020
  • Ingår i: International Journal of Sport and Exercise Psychology. - New York : Taylor & Francis. - 1612-197X .- 1557-251X.
  • Tidskriftsartikel (refereegranskat)abstract
    • The objective of this study was to explore career pathways to athletic success in American professional athletes with low socioeconomic background. Ten African American professional male athletes, who met the criteria of playing at least one year in a professional league and spending their formative years in an American underserved community, participated in the study. Interviews inspired by the cultural praxis of athletes’ careers, lasted 68-137 minutes, and the transcripts were thematically analysed. Four career stages (childhood years, middle/high school years, college years, professional years) and three themes (context, challenges, coping) were visible in the career pathways of the participants. During the first stage the athletes’ athletic foundation was developed by participating in inexpensive, easy to access sports in unstructured sporting environments, while simultaneously relying upon the strength of a mother to keep them safe. An increased susceptibility to the dangers of environmental factors (e.g., drugs, gangs) during the middle/high school years made this period of time the most precarious for the athletes, but was also the most crucial for their athletic development. The college years were a time of “catching up,” whereby the athletes entered a whole new environment for which they were physically (e.g., underweight) and psycho-socially (e.g., racial integration) unprepared, but their hard work and the help of peers and coaches propelled them to success (i.e., professional contract). Finally, the results indicate that coping resources the athletes developed dealing with hardship were perceived as key factors enabling them to endure the difficulties of a professional career. © 2020 International Society of Sport Psychology.
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