Binary consensus is a problem in which a set of processors must agree on a single binary value. In asynchronous systems, where a subset of the processors may be malicious, this challenge gets more challenging. We study ...

A crucial problem found in distributed system is to achieve trustworthyness. If we know who to trust then we can try and reach consensus which is to decide a common value for everyone. This becomes significantly more ...

Nowadays, the novel IoT application era has risen to the top, reaching a point that smart devices can also communicate between them. This new era introduced the need of continuous information exchange between the smart ...

This thesis is motivated by the massively increasing structured data on the Web, and the need for novel methods to exploit these data to their full potential. Building on the remarkable success of Web 2.0 mash-ups, and ...

Multiple Sclerosis is an inflammatory demyelinating disorder of the Central Nervous System. It is an autoimmune disease that its causes are still not clarified. The demyelization of the neural axons leads to the physical ...

Η παρούσα διπλωματική εργασία αφορά την υλοποίηση της εφαρμογής MYeHealthAppCY, και πιο συγκεκριμένα, η εργασία στοχεύει στην παρουσίαση των δεδομένων του Συνοπτικού Ιστορικού Υγείας για εθνική και διασυνοριακή χρήση στις ...

Ontological queries are queries evaluated against a database and an ontology, i.e. a set of logic rules and constraints from which new knowledge can be derived from. Ontological database systems can thus be more powerful ...

The use of Evolutionary Algorithms (EAs) in difficult problems, where the search space is unknown, urges researches to find ways to exploit their parallel aspect. Multi-objective Evolutionary Algorithms (MOEAs) have features ...

In this thesis, an approach for securing health information transactions over the public Internet or private networks is investigated. This is commonly proposed to assist in secure transactions. The approach is based on ...

Achieving fault tolerance is an inevitable problem in architectural arrays such as caches, which it becoming more challenging with the power constrains. This work propose to reduce energy by avoiding access to columns of ...