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In order to optimize daily activity chains a new approach has to be followed when creating the method and the connected systems architecture. The elaborated method builds on the flexibility of activities, which can be spatial or temporal. With the introduction of flexibility new locations of the activities are suggested to the travellers, so that the optimization can be realized and shorter travel...
Modern e-learning systems offer students many interactive learning elements such as videos or quiz questions. For the optimization of the teaching, the learning elements themselves and the prediction of student performance, it is important for educators to figure out how student interactions can be tracked and how the tracked data can be used. Modern learning courses can consist of different Software-as-a-Service...
Numerous applications, e.g., in the industrial sector, produce large amounts of time-series data, which must be stored and made available for distributed processing. While outsourcing data storage and processing to third-party service providers offers many benefits, it raises data privacy issues. In light of this problem, techniques have been proposed to share only encrypted data with the remote service...
This document presents a detailed description of the development and results obtained during the Proof of Concept about the Think! EHR platform, which is marketed by the Marand d.o.o (Marand) company.
The report addresses a remote molecular diagnostics system for studies of the edge plasma inT-10 tokamak at National Research Centre Kurchatov Institute. Web control of a monochromator and a CCD camera based on Internet technologies was used to monitor radiation. The structure and communications chart of the software components implemented in the system are described. A special web application has...
Remote experimentation has long conflicted with security policies imposed by networks administrators. To provide external access to experiment servers in a university, security measures are demanded. Such leads to an excessive dependency on the IT departments for services configuration and maintenance. In the present work, modifications in ISA/ELSA architecture are proposed to circumvent those problems...
This paper focuses on research device management mechanisms such as routers and switches, based on the NETCONF protocol, considered user authentication mechanisms using RADIUS-server and implementation of these mechanisms in currently being developed Eltex Network OS. Reflected the main features of NETCONF protocol — Network Configuration Protocol, produced theoretical and experimental comparison...
Caching plays an important role in many domains, as it can lead to important performance improvements. A key-value based caching system typically stores the results of popular queries in efficient storage locations. While caching enjoys widespread usage in the context of dynamic web applications, most mainstream caching systems store static binary items, which makes them impractical for many real-world...
Several utilities in Africa are planning to build Smart Distribution Management System (SDMS) to provide better customer service, improve reliability & quality of power supply and also improve commercial viability of their utilities. The SDMS architecture and design for each Utility has to be determined considering current operational status of distribution network, ability to mobilize resources...
With the growth of Infrastructure as a Service (IaaS) in cloud computing, and the Internet of Things (IoT), network monitoring of the global infrastructure will continue to expand, as cybersecurity will become of primary importance. Current network monitoring approaches, particularly those that are agent-based, are proprietary, costly, and may not scale. This paper proposes a lightweight, scalable...
In this paper, we first define a new security problem, named mPSI (many-to-one private set interaction), which can find applications in many scenarios where the host of a big database may be queried by a large number of clients who have small-size queries and want to prevent both the intentions and results of their queries from being exposed to others. We also propose a new scheme to solve the mPSI...
Despite their proliferation as a dominant computing paradigm, cloud computing systems lack effective mechanisms to manage their vast amounts of resources efficiently. Resources are stranded and fragmented, ultimately limiting cloud systems' applicability to large classes of critical applications that pose non-moderate resource demands. Eliminating current technological barriers of actual fluidity...
In this paper we propose to consider a study aimed at improving the Honeypot system performance. There is observed architecture of the designed service of collecting and updating common database of exploits, which is necessary for this study, necessary for building and further Honeypot system maintenance. The data obtained using this service are analyzed in order to determine the free server software...
The work of this paper is done within the context of European Project E! 9770 i-Light, which aims at developing intelligent systems based on smart luminaries for building monitoring. The work presented in this paper extends the work from i-Light project towards a smart guiding system for buildings. The system is based on the use of smart luminaries and drones. One of the main targets of such a system...
As the Internet of Things evolves and matures, the number of connected devices and the amount of generated data grows exponentially. Integrative standards and API design patterns are required to deal with this fast growth, while easing machine to machine communication and promoting ubiquitous computing. This paper discusses the W3C Web of Things model that is currently in the process of standardization,...
Scaling web applications such as e-commerce in cloud by adding or removing servers in the system is an important practice to handle workload variations, with the goal of achieving both high quality of service (QoS) and high resource efficiency. Through extensive scaling experiments of an n-tier application benchmark (RUBBoS), we have observed that scaling only hardware resources without appropriate...
In today's datacenters, resource requests from tenants are increasingly transforming into hybrid requests that may simultaneously demand IaaS, Paas, and SaaS resources. This paper tackles the challenge of modeling and deploying hybrid tenant requests in datacenters, for which we coin "networklet" to represent a set of VMs that collaboratively provide a PaaS or SaaS service. Through extracting...
Memcached is a widely used in-memory caching solution in large-scale searching scenarios. The most pivotal performance metric in Memcached is latency, which is affected by various factors including the workload pattern, the service rate, the unbalanced load distribution and the cache miss ratio. To quantitate the impact of each factor on latency, we establish a theoretical model for the Memcached...
Smart parking solutions for big cities are critically important for reducing traffic congestion and vehicle energy consumption in big cities. Visual-based detection methods have been proposed since their maintenance costs are typically lower. However, visual based detection methods in existing systems are not robust due to varying light intensities, occlusions, and their deployment costs can still...
This paper describes the first results of the evaluation of the use of Hippocratic Protocol, on mobile terminals with NFC technology. The evaluation is based on a software application written to ANDROID terminal and used by two type of users: Doctors and Patient. Complementing this app, a server and a database implemented with open source resources was created too. The software developed during this...
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