| 1. |
- Brynielsson, Joel, et al.
(författare)
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Enhanced situation awareness using random particles
- 2005
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Ingår i: Proceedingsof the Tenth International Command and Control Research and TechnologySymposium (ICCRTS).
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Konferensbidrag (refereegranskat)abstract
- Modern command and control systems present the current view of the situationthrough a situation picture that is being built up from fused sensor data. However,merely presenting a comprehensible description of the situation does not give thecommander complete awareness of the development of a situation. This articlepresents a generic tool for prediction of forthcoming troop movements. The techniqueis similar to particle filtering, a method used for approximate inference indynamic Bayesian networks.The prediction tool has been implemented and installed into an existent electronicwarfare system. The tool makes use of the system’s geographic informationsystem to extract geographic properties and calculate troop velocities in the terrainwhich is, in turn, being used for the construction of the tool’s transition model.Finally, the result is presented together with the situation picture.The prediction tool has been evaluated in field tests performed in cooperationwith the Swedish Armed Forces in an exercise in Sweden during the spring of2005. Officers and operators of the electronic warfare system were interviewedand exposed to the tool. Reactions were positive and prediction of future troopmovements was considered to be interesting for short-term tactical command andcontrol.
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| 2. |
- Chowdhury, Sohini Roy, et al.
(författare)
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Automated Augmentation with Reinforcement Learning and GANs for Robust Identification of Traffic Signs using Front Camera Images
- 2019
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Ingår i: Conference Record - Asilomar Conference on Signals, Systems and Computers. - 1058-6393. - 9781728143002 ; 2019-November, s. 79-83
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Konferensbidrag (refereegranskat)abstract
- Traffic sign identification using camera images from vehicles plays a critical role in autonomous driving and path planning. However, the front camera images can be distorted due to blurriness, lighting variations and vandalism which can lead to degradation of detection performances. As a solution, machine learning models must be trained with data from multiple domains, and collecting and labeling more data in each new domain is time consuming and expensive. In this work, we present an end-to-end framework to augment traffic sign training data using optimal reinforcement learning policies and a variety of Generative Adversarial Network (GAN) models, that can then be used to train traffic sign detector modules. Our automated augmenter enables learning from transformed nightime, poor lighting, and varying degrees of occlusions using the LISA Traffic Sign and BDD-Nexar dataset. The proposed method enables mapping training data from one domain to another, thereby improving traffic sign detection precision/recall from 0.70/0.66 to 0.83/0.71 for nighttime images.
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| 3. |
- Gillman, Anna, et al.
(författare)
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Resistance Mutation R292K Is Induced in Influenza A(H6N2) Virus by Exposure of Infected Mallards to Low Levels of Oseltamivir
- 2013
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Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:8
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Tidskriftsartikel (refereegranskat)abstract
- Resistance to neuraminidase inhibitors (NAIs) is problematic as these drugs constitute the major treatment option for severe influenza. Extensive use of the NAI oseltamivir (Tamiflu(R)) results in up to 865 ng/L of its active metabolite oseltamivir carboxylate (OC) in river water. There one of the natural reservoirs of influenza A, dabbling ducks, can be exposed. We previously demonstrated that an influenza A(H1N1) virus in mallards (Anas platyrhynchos) exposed to 1 mu g/L of OC developed oseltamivir resistance through the mutation H274Y (N2-numbering). In this study, we assessed the resistance development in an A(H6N2) virus, which belongs to the phylogenetic N2 group of neuraminidases with distinct functional and resistance characteristics. Mallards were infected with A(H6N2) while exposed to 120 ng/L, 1.2 mu g/L or 12 mu g/L of OC in their sole water source. After 4 days with 12 mu g/L of OC exposure, the resistance mutation R292K emerged and then persisted. Drug sensitivity was decreased approximate to 13,000-fold for OC and approximate to 7.8-fold for zanamivir. Viral shedding was similar when comparing R292K and wild-type virus indicating sustained replication and transmission. Reduced neuraminidase activity and decrease in recovered virus after propagation in embryonated hen eggs was observed in R292K viruses. The initial, but not the later R292K isolates reverted to wild-type during egg-propagation, suggesting a stabilization of the mutation, possibly through additional mutations in the neuraminidase (D113N or D141N) or hemagglutinin (E216K). Our results indicate a risk for OC resistance development also in a N2 group influenza virus and that exposure to one NAI can result in a decreased sensitivity to other NAIs as well. If established in influenza viruses circulating among wild birds, the resistance could spread to humans via re-assortment or direct transmission. This could potentially cause an oseltamivir-resistant pandemic; a serious health concern as preparedness plans rely heavily on oseltamivir before vaccines can be mass-produced.
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| 4. |
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| 5. |
- Nedlund, Ann-Charlotte, et al.
(författare)
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Constructing citizens : a matter of labeling, imaging and underlying rationales in the case of people with dementia
- 2018
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Ingår i: Critical Policy Studies. - : Informa UK Limited. - 1946-0171 .- 1946-018X. ; 12:3, s. 253-272
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Tidskriftsartikel (refereegranskat)abstract
- A highly significant element in politics and policies is the process of constructing, categorizing and imaging – such as categorizing citizens as target groups. In governing documents, distinctions are drawn to distinguish deserving and undeserving categories of citizens. This paper explores the construction of citizenship for people with dementia and the connection to underlying categories of rationales, by analyzing how this group has been categorized and imaged in policy documents. The study is based on a qualitative textual analysis of national policy documents in Sweden, covering nearly 40 years. It shows that the way people with dementia have been imaged has differed over time, where people living with dementia have been situated in various target groups and discourses. However, to a large extent, the underlying understanding has nevertheless remained persistent where the position of people with dementia has remained weak. It offers a taxonomy of categories of rationales and shows the interplay of rationales and target groups for certain social constructions. The study offers insights into the policy process related to policy change, and on citizenship as something transformative and interrelated that risks upholding democratic values that delimit disempowered groups, in this case people with dementia, to influence their citizenship.
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| 6. |
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| 7. |
- Nedlund, Ann-Charlotte, 1977-, et al.
(författare)
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Crafting citizen(ship) for people with dementia: How policy narratives at national level in Sweden informed politics of time from 1975 to 2013
- 2015
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Ingår i: Journal of Aging Studies. - : Elsevier. - 0890-4065 .- 1879-193X. ; 34, s. 123-133
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Tidskriftsartikel (refereegranskat)abstract
- This article explores how policy narratives in national policy documents in Sweden inform associated politics on people with dementia. This is disentangled in terms of how people with dementia have been defined, what the problems and their imminent solutions have been, and if and how these have differed overtime. Based on a textual analysis of policy documents at national level in Sweden, covering nearly 40 years the study shows how divergent policy narratives shape the construction of citizens with dementia as policy target groups. This study shows the temporal character of people with dementia as a political problem, the implications of policy narratives on people with dementia as a citizen group, and policy narratives as something being crafted rather than shaped by fixed pre-existing "facts". Dementia, and further citizens living with dementia, does not have a once and for all stabilised meaning. Instead, the meanings behind the categories continue to evolve and to be crafted, which affects the construction of citizens living with dementia, the space in which to exercise their citizenship and further belonging to the society.
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| 8. |
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| 9. |
- Nedlund, Ann-Charlotte, 1977-, et al.
(författare)
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Medborgare med demenssjukdom
- 2016
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Ingår i: Att leva med demens. - Malmö : Gleerups Utbildning AB. - 9789140691651 ; , s. 171-181
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 10. |
- Nordh, Jonas
(författare)
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Social citizenship and people with dementia : Designing social care policies in Sweden
- 2016
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- People with dementia are commonly in need of some form of social care from the social services in order to manage their everyday situations. However, social services are shaped by the construction of policy targets. The aim of this dissertation is to explore the social citizenship for people with dementia. Social citizenship for people with dementia is explored by studying how people with dementia, in policy documents, have been constructed as a target group and also by studying how policies are enacted in practice by care managers, in their work and in their meetings with people with dementia. This is illustrated by studying policy documents from national level which range over nearly 40 years and 19 interviews with care managers. It is shown that, if and when, people with dementia are visible in policy documents, they commonly have a negative construction based on their cognitive and communicative abilities, as a burden, disturbing and incapable. It is further investigated how street-level bureaucrats, in this case care managers, experience meeting with people with dementia when they apply for social services. It is shown that care-managers experience difficulties concerning this group comprised of the exchange of information between care managers and people with dementia, refusal of social services by the person, the influence of relatives and other professions as well as moral dilemmas, such as the relations between the person with dementia and their relatives. The study shows that care managers have little support from policies, e.g. legislation and guidelines, in how to handle these dilemmas, and must thus create their own local ways of handling these situations. Care managers are thus influential policy actors concerning the policy target group of people with dementia. The policy processes which this dissertation illustrates, affect the social citizenship of people with dementia. It is shown that they, to an extent, have difficulties in influencing their own everyday situation concerning social services. Finally, the policy processes, will affect their possibility to influence their social citizenship.
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