Search results for "Information and communication Technology"
showing 10 items of 345 documents
Searchable Privacy-Enabled Information and Event Management Solution.
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 With network traffic proliferating over the last couple of decades, there is an increasing need to monitor security information in order to prevent and resolve network security threats. A Security Information and Event Management (SIEM) solution collects all the alerts that the various Intrusion Detection and Prevention Systems (IDS/IDP or IDPS) generates, as well as security logs from various other systems, into one database so that the security analyst (SA) can more easily get an overview of the threat activity. A privacy enhanced anonymization and deanonymization protocol (Anonymiser/ Reversible Anonymis…
Towards Detecting Textual Plagiarism Using Machine Learning Methods
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 Textual plagiarism is passing off someone else’s text as your own. The current state of the art in plagiarism detection performs well, but often uses a series of manually determined thresholds of metrics in order to determine whether an author is guilty of performing plagiarism or not. These thresholds are optimized for a single data set and are not optimal for all situations or forms of plagiarism. The detection methodologies also require a professional familiar with the algorithms in order to be properly adjusted, due to their complexity. Using a pre-classified data set, machine learning methods allow tea…
Domestic Electricity Demand and Peak Predictions Considering Influence of Weather Parameters
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 (Konfidensiell til/confidential until 01.07.2020)
Design, implementation and analysis of a theft-resistant password manager based on Kamouflage architecture
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 As a solution for helping companies and users in the constant security dilemma of obtaining and using passwords in the securest ways possible, password managers have become custom around the globe. The design architecture on what development of password managers are based on, preserving authenticity, usability and reliability are principles that keep systems secure and defend against attacks or unfortunate circumstances. The design principles however, have changed little over time. After researching password managers and analyzing overall security, we use our findings to develop a design based on the implem…
Clustered File Type Identification
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 This thesis examines the possibility of expanding the current field of research for file type identification in Digital Forensics. A proposed solution is presented where unsupervised clustering and supervised classification are combined. The experimentation of the proposed solution increases the speed of file type identification, however with a decrease of total identification accuracy. A technique of unsupervised continuous learning is also presented, effectively making the proposed solution capable of adapting to the environment by learning from the test data while performing file type identification. In …
LTE- in Unlicensed Band: Medium Access and Performance Evaluation
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 Long Term Evolution (LTE) technology is challenged by high data rate demanding services and increasing number of mobile phones which are equipped with Wi-Fi access capability. To respond to this challenge, 3rd Generation Partnership Project (3GPP) initiated a Study Item (SI) which investigates the co-existence of Wi-Fi and LTE technologies in the same unlicensed 5 GHz band. Given that Wi-Fi and LTE are originally designed to operate in totally different bands, unlicensed and licensed, it is difficult to achieve this coexistence for these two incompatible access technologies. Accordingly, 3GPP introduces the…
On-the-Fly Establishment of Multi-hop D2D Communication based on Android Smartphones and Embedded Platforms: Implementation and Real-Life Experiments
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 (Konfidensiell til/confidential until 01.07.2020)
Determining gastrointestinal tract dysbiosis using machine learning techniques
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 This thesis explores machine learning techniques for the purpose of determining gastrointestinal tract dysbiosis. Dysbiosis is an unbalance of bacteria flora. Stool sample analysis of relevant bacterias can be used in "diagnosis" of this condition. The problem is how to best classify dysbiosis from a healthy balance of bacteria. Pattern recognition methods could be used to create a diagnostic decision support system. The approach includes comparisons between classifiers with the additional use of feature reduction techniques. Experiments show that the accuracy varies significantly depending of which classif…
Neighbor and Service Discovery Protocols with Security Enhancement for Device-to-Device Communication in LTE{LTE-A Cellular Networks
2015
Masteroppgave informasjons- og kommunikasjonsteknologi - Universitetet i Agder, 2015 Device-to-Device (D2D) communication has become one of the most popular topic in the 5th generation (5G) mobile communication technology. D2D offers opportunities for access to services through direct neighbor device connection with or/and without base station (BS) assistance. Some of the possible improvements using D2D communication include high data rate, network offloading and range extension, as well as commercial and social proximity services networking. Although a lot of studies exist in the research community, D2D communication with one of the end users are located outside the cellular network covera…
Using Bayesian networks to describe hydrologic processes
2014
Masteroppgave i Informasjons- og kommunikasjonsteknologi IKT590 Universitetet i Agder 2014 The goal for this Masters thesis is to explore the use of dynamic Bayesian networks for describinghydrologic processes. The main intent is to try and provide better descriptions of the uncertainties thatare tied to dealing with such complex and partially unknown processes, while also trying to reducethese uncertainties. For this purpose I have translated part of a well known and widely useddeterministic model, the snow module of the HBV model, into a dynamic Bayesian network.