7 research outputs found
Lifelogging user study:bystander privacy
Automatically and passively taking pictures (using lifelogging devices such as wearable cameras) of people who donât know theyâre having their picture taken raises a number of privacy concerns (from a bystanderâs perspective). We conducted a study focussing on the bystandersâ concerns to the presence of augmented reality wearable devices in two contexts (one formal and one informal). The results suggests the need to embed privacy enhancing techniques into the design of lifelogging applications, which are likely to depend upon an array of factors, but not limited to the context of use, scenario (and surroundings), and content
Overview of the NTCIR-14 Lifelog-3 task
Lifelog-3 was the third instance of the lifelog task at NTCIR. At NTCIR-14, the Lifelog-3 task explored three different lifelog data access related challenges, the search challenge, the annotation challenge and the insights challenge. In this paper we review the activities of participating teams who took part in the challenges and we suggest next steps for the community
Overview of the NTCIR-16 Lifelog-4 Task
NTCIR-16 saw the fourth edition of the Lifelog task, which aimed to
foster comparative benchmarking of approaches to automatic and
interactive information retrieval from multimodal lifelog archives.
In this paper, we describe the test collection employed, along with
the tasks, the submissions and the findings from this NTCIR16
Lifelog-4 LEST sub-task. We finish by suggesting future plans for
lifelog tasks
Childrenâs everyday exposure to food marketing: an objective analysis using wearable cameras
Abstract Background Over the past three decades the global prevalence of childhood overweight and obesity has increased by 47%. Marketing of energy-dense nutrient-poor foods and beverages contributes to this worldwide increase. Previous research on food marketing to children largely uses self-report, reporting by parents, or third-party observation of childrenâs environments, with the focus mostly on single settings and/or media. This paper reports on innovative research, KidsâCam, in which children wore cameras to examine the frequency and nature of everyday exposure to food marketing across multiple media and settings. Methods KidsâCam was a cross-sectional study of 168 children (mean age 12.6Â years, SDÂ =Â 0.5) in Wellington, New Zealand. Each child wore a wearable camera on four consecutive days, capturing images automatically every seven seconds. Images were manually coded as either recommended (core) or not recommended (non-core) to be marketed to children by setting, marketing medium, and product category. Images in convenience stores and supermarkets were excluded as marketing examples were considered too numerous to count. Results On average, children were exposed to non-core food marketing 27.3 times a day (95% CI 24.8, 30.1) across all settings. This was more than twice their average exposure to core food marketing (12.3 per day, 95% CI 8.7, 17.4). Most non-core exposures occurred at home (33%), in public spaces (30%) and at school (19%). Food packaging was the predominant marketing medium (74% and 64% for core and non-core foods) followed by signs (21% and 28% for core and non-core). Sugary drinks, fast food, confectionary and snack foods were the most commonly encountered non-core foods marketed. Rates were calculated using Poisson regression. Conclusions Children in this study were frequently exposed, across multiple settings, to marketing of non-core foods not recommended to be marketed to children. The study provides further evidence of the need for urgent action to reduce childrenâs exposure to marketing of unhealthy foods, and suggests the settings and media in which to act. Such action is necessary if the Commission on Ending Childhood Obesityâs vision is to be achieved