Search results for "550"
showing 10 items of 1192 documents
Machine learning and ontology in eCoaching for personalized activity level monitoring and recommendation generation.
2022
AbstractLeading a sedentary lifestyle may cause numerous health problems. Therefore, passive lifestyle changes should be given priority to avoid severe long-term damage. Automatic health coaching system may help people manage a healthy lifestyle with continuous health state monitoring and personalized recommendation generation with machine learning (ML). This study proposes a semantic ontology model to annotate the ML-prediction outcomes and personal preferences to conceptualize personalized recommendation generation with a hybrid approach. We use a transfer learning approach to improve ML model training and its performance, and an incremental learning approach to handle daily growing data …
The fundamental theory of optimal "Anti-Bayesian" parametric pattern classification using order statistics criteria
2013
Author's version of an article in the journal: Pattern Recognition. Also available from the publisher at: http://dx.doi.org/10.1016/j.patcog.2012.07.004 The gold standard for a classifier is the condition of optimality attained by the Bayesian classifier. Within a Bayesian paradigm, if we are allowed to compare the testing sample with only a single point in the feature space from each class, the optimal Bayesian strategy would be to achieve this based on the (Mahalanobis) distance from the corresponding means. The reader should observe that, in this context, the mean, in one sense, is the most central point in the respective distribution. In this paper, we shall show that we can obtain opti…
The beaker phenomenon and the Genomic transformations of Northwest Europe
2018
Bell Beaker pottery spread across western and central Europe beginning around 2750 BCE before disappearing between 2200–1800 BCE. The mechanism of its expansion is a topic of long-standing debate, with support for both cultural diffusion and human migration. We present new genome-wide ancient DNA data from 170 Neolithic, Copper Age and Bronze Age Europeans, including 100 Beaker-associated individuals. In contrast to the Corded Ware Complex, which has previously been identified as arriving in central Europe following migration from the east, we observe limited genetic affinity between Iberian and central European Beaker Complex-associated individuals, and thus exclude migration as a signific…
Self-care telephone talks as a health-promotion intervention in urban home-living persons 75+ years of age: a randomized controlled study
2014
- Published article -cc-by-nc Aim: The aim of this study was to evaluate the effects of a telephone-based self-care intervention among urban living individuals 75+ years of age by comparing self-reported perceived health, mental health, sense of coherence, self-care ability, and self-care agency before and after the intervention. Materials and methods: In a randomized controlled study, 15 persons answered a questionnaire about perceived health, mental health, sense of coherence, self-care ability, and self-care agency. In a sex- and age-matched control group (n=15), the same questions were answered. Data were collected before and after intervention. An open-ended question about experiences …
Identification of Risk Factors Associated with Obesity and Overweight-A Machine Learning Overview.
2020
Social determining factors such as the adverse influence of globalization, supermarket growth, fast unplanned urbanization, sedentary lifestyle, economy, and social position slowly develop behavioral risk factors in humans. Behavioral risk factors such as unhealthy habits, improper diet, and physical inactivity lead to physiological risks, and &ldquo
Business Intelligence i helsesektoren : erfaringer fra Diakonhjemmet Sykehus Kvalitativ studie med fokus på ledere i kliniske avdelinger
2017
Masteroppgave i helse- og sosialinformatikk HSI500 - Universitetet i Agder 2017 Background: It is challenging to manage hospitals in Norway, partly due to changing economic frameworks and new demands from the government. Various information technologies are used in the health care system and many projects fail. Adoption of new technology is difficult in a complex organization with many different professional groups. Purpose: The purpose of this study is to investigate managers experiences with using a management information system (MIS) in clinical departments at a hospital in Norway. The system is self-developed at the hospital and is used by all levels of management. The aim is to investi…
Marine data collection and transmission system for ECO-boat
2014
Masteroppgave i Informasjons- og kommunikasjonsteknologi IKT590 Universitetet i Agder 2014 Marine data collection is of great importance because the analytical results based onthe collected data can be utilized for many purposes during the design phase beforesale as well as the maintenance phase of the boat after sale. In this thesis, I havedesigned and implemented a marine data collection and transmission system foryachts. The system can collect data from an NMEA network, a wireless sensornetwork, a custom-made CAN-bus network, and other sensors such as a 9degree-of-freedom inertial measurement units. The collected data is stored both atthe boat and at a remote server. In this design, I us…
Evidence of warm and humid interstadials in central Europe during early MIS 3 revealed by a multi-proxy speleothem record
2018
Marine Isotope Stage 3 (MIS 3, 57-27 ka) was characterised by numerous rapid climate oscillations (i.e., Dansgaard-Oeschger (D/O-) events), which are reflected in various climate archives. So far, MIS 3 speleothem records from central Europe have mainly been restricted to caves located beneath temperate Alpine glaciers or close to the Atlantic Ocean. Thus, MIS 3 seemed to be too cold and dry to enable speleothem growth north of the Alps in central Europe. Here we present a new speleothem record from Bunker Cave, Germany, which shows two distinct growth phases from 52.0 (+0.8, -0.5) to 50.9 (+0.6, -1.3) ka and 473 (+1.0, -0.6) to 42.8 (+/- 0.9) ka, rejecting this hypothesis. These two growth…
Consequences of personalized product recommendations and price promotions in online grocery shopping
2022
Shopping convenience can be turned into a competitive advantage for online grocery retailers. Consequently, we study how personalized product recommendations (recommendation agents) and price promotions (algorithmic pricing) compensate for the negative impact that consumer's perceived cognitive effort causes on loyalty. By default, the relationship from perceived cognitive efforts to attitudinal and behavioral loyalty is negative, yet these results demonstrate that personalized price promotions lessen the negative impact, while personalized product recommendations do not have such an influence. The findings contribute to a better understanding of personalized marketing activities in today's…
Identifying future research opportunities in online consumer reviews: the case study of 'TripAdvisor'
2011
Submitted version of an article from the journal: International Journal of Technology Marketing. Published and definitive version available from Inderscience: http://dx.doi.org/10.1504/IJTMKT.2011.045913 The aim of this article is to identify future research opportunities for using online consumer reviews websites such as TripAdvisor.com as a case study. The literature review covers the internet and growth of eTourism, virtual communities, virtual community typologies, and the importance of TripAdvisor.com for travel research, electronic word–of–mouth (eWOM), social networking and the impact of online travel reviews on consumers. Propositions and future research opportunities are then raise…