Search results for "VDP::Mathematics and natural science: 400::Information and communication science: 420"
showing 10 items of 102 documents
Digital Servitization: Strategies for Handling Customization and Customer Interaction
2021
This conceptual chapter utilizes extant servitization and digitalization theorization and discusses the impact of digital servitization on customization/standardization and customer interaction. The study argues that the transformation toward digital servitization is complex and goes far beyond the technological dimension. The study contributes to the digital servitization literature by demonstrating that industrial services shift from customized and co-created to mainly standardized-provided and informating when they are digitalized. These insights can assist managers of servitized manufacturing firms who wish to utilize digital technologies in their service provision.
Sampling based average classifier fusion
2014
Published version of an article in the journal: Mathematical Problems in Engineering. Also available from the publisher at: http://dx.doi.org/10.1155/2014/369613 Classifier fusion is used to combine multiple classification decisions and improve classification performance. While various classifier fusion algorithms have been proposed in literature, average fusion is almost always selected as the baseline for comparison. Little is done on exploring the potential of average fusion and proposing a better baseline. In this paper we empirically investigate the behavior of soft labels and classifiers in average fusion. As a result, we find that; by proper sampling of soft labels and classifiers, t…
Fifth Generation Networking Principles for a Service Driven Future Internet Architecture
2010
Published version of an article published in Wireless Personal Communications, vol. 57:393-411. Also available from the publisher at: http://dx.doi.org/10.1007/s11277-010-0076-7 The vision of all-IP networks where IP forms the simple common layer understandable across the whole network has undeniable advantages. However, such simplicity comes as a major hurdle to flexibility and functionality to the architecture. This is evident from the increasingly numerous and complex engineering solutions and optimizations required to accommodate essential qualities like mobility, security, realtime communication support etc or to mitigate the shortcomings inherent in the 'traditional Internet' architec…
Optimized distribution of internationalized DRM-protected multimedia content
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad In this project we have looked into different streaming technologies, transport methods and ways of securing the content. We have performed an analysis of the performance in different scenarios, and tested different ways of distributing the content. We have also looked into some of the newest player technologies, and found the reasons for using them, or to look for alternatives. We have found that the best way to deliver content is to use multiple streams and assembling them on the client. This will take more bandwidth, but with todays internet connections this will be acceptable. The solution th…
Identifying Geographic Terms within Natural Language Text
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad The huge amount of textual data available in digital form in today’s world increases the need for methods that facilitate ease of access and navigability. Automatic extraction of keywords from text bodies is one promising approach. However, the relevance of keywords are context dependent, and extracting relevant keywords often requires a semantic analysis, simply because words may have different meanings in different contexts. It is well-known that resolving such word sense ambiguity automatically can be very challenging. When the topic of interest is geographic information, important keywords wo…
WLAN 802.11 b/g interference into ZigBee networks
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad ZigBee network as a low rate wireless personal area network (LR-WPANs) developed very fast nowadays. Since both ZigBee network and WLAN (802.11b/g) operate in the 2.4GHz unlicensed industrial scientific medical (ISM) frequency band, signal interference is possible to exist and result in signal degradation when devices are collocated in the same environment. This thesis analyzes, simulates and measures the interference and evaluates ZigBee network performance under the WLAN interference in terms of Packet Error Rate (PER) and Packet Loss Ratio (PLR). And the investigation emphasis of this thesis i…
Accurate Measurement and Visualization of Traffic Load in IEEE 802.11 WLANs
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard are getting very popular these days, due to their support for new multimedia services and VoIP, and because WLANs are appearing on more and more small devices. This causes a steadily increasing load and becomes a challenge to network administrators who want to make their WLANs run efficiently and to keep the users satisfied. This Master thesis addresses the lack of efficient and affordable monitoring tools for those running WLANs, by developing an accurate method and for the visualization of traffic patterns and bandwidth util…
Modelling of the Universe : Simulation of the GPS (The Global Positioning System)
2007
Masteroppgave i informasjons- og kommunikasjonsteknologi 2007 – Høgskolen i Agder, Grimstad ParAbel is a project at Agder University College aims at mathematics and physics on Internet. One of the sub projects named SimReal [2] (Simulation in ‘Realfag’), which currently aims at simulating behaviours and properties of universe for both mathematics and physics studying. This project focuses on simulation of the GPS which is one sub task in SimReal. In this paper, on the one hand, we will set up a GPS simulation model and use it to be a teaching material for learning mathematics and physics. On the other hand, by testing the simulation model among the college students, we will discuss about th…
Analysis of the use of a workflow engine for OTRUM system software
2007
Masteroppgave i informasjons- og kommunikasjonsteknologi 2007 – Høgskolen i Agder, Grimstad Workflow engines are attracting more and more attention. Applications based on workflow engine technology are currently developed and deployed by many companies, such as OTRUM Company. In this project, we focus on the analysis and development of an efficient workflow engine for interactive TV. The research project will realize workflow engine solutions based on three choices including commercial workflow engine, open source workflow engine, and a workflow engine implemented from scratch. In this project, we go through all mentioned solutions. In the literature, many proposed workflow engines are invo…
Stochastic Learning-Based Estimation Methods for Pattern Recognition and Its Application to Topic Detection and Tracking
2008
Masteroppgave i informasjons- og kommunikasjonsteknologi 2008 – Universitetet i Agder, Grimstad Every Pattern Recognition (PR) problem involves a training and a testing phase. In the training phase, the system is presented with samples, using which the distribution (also called the classconditional distribution), of the features, is estimated. Traditional PR systems assume that the class-conditional distributions are stationary, and thus that they do not change with time. Recently Oommen and his co-authors have presented a strategy by which the parameters of a binomial/- multinomial distribution can be estimated when the distribution is non-stationary. In this thesis, we propose a selection…