The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Applications well-defined with high Fault Tolerance index are considered reliable and trustworthy to drive quality. Fault Tolerance metrics for web mobile applications are neither defined formally nor are they organized at a single place for measurement to researchers and quality engineers. Fault Tolerance metrics determines the quality of web mobile applications provided they are measured accurately...
This work presents the parasitic feed-through capacitance in a MEMS capacitive gyroscope with push-pull configuration. The push-pull configuration was adopted for driving the gyroscope resonator differentially to nullify the linear acceleration effect. The drive mode oscillator of the gyroscope was analyzed theoretically and experiments were carried out to quantize the parasitic feed-through level...
a large number of design or decision making problems, in engineering and management, require simultaneous optimization of multiple and often conflicting objectives. Although the current state-of-the-art algorithms (NSGA II and SPEA2) have been proved quite efficient for solving two- and three-objective problems, the performance of these algorithms is unacceptable for solving many-objective problems...
The distinction between the radio access network and the backhaul network is disappearing with emerging advanced features. The backhaul is invading the radio assess spectrum to enable wireless in-band connections and the radio network is overlapping with the transport network through cloud processing and distributed functions. As such, it is of pivotal importance to approach the optimisation of the...
Developers use cloud computing platforms to process a large quantity of data in parallel when developing big data analytics. Debugging the massive parallel computations that run in today’s data-centers is time consuming and error-prone. To address this challenge, we design a set of interactive, real-time debugging primitives for big data processing in Apache Spark, the next generation data-intensive...
Constructive alignment is a student-centred approach to teaching and learning that aims to enhance student learning through a combination of constructivist learning theories and aligned curriculum. This paper presents two case studies where units have been developed to apply the principles of constructive alignment in the area of computer science and software engineering. It outlines the role of formative...
Electrified traction system connected to the medium voltage high power achieve great attention due to its high efficiency. However the conventional topologies used in electrified traction system causes power quality issues such as high harmonics distortion, low power factor on ac line due to the non linear nature of the load. To address the said issues, this paper presents a topology of 7-level asymmetrical...
W3C Web Ontology Working Group developed Web Ontology language (OWL) for sharing and distributing semantically marked up ontologies for next generation Web. Simulation, on the other hand, is used to evaluate any proposed system under different configuration scenarios. In this paper, a new web ontology based multi-level CACHE Simulator is presented that is developed at NED University. It is a trace...
Energy efficiency in future networks is a global and paramount requirement driven by the desire to reduce networks' carbon footprint and energy bills, as well as extend the battery life of devices. Ultra-dense small cell deployment is a key enabler of such networks as it addresses the energy efficiency aspect of its radio section. However, the small cell backhaul mark of energy consumption is one...
This paper studies the potential improvements in terms of energy efficiency and system throughput of a hybrid automatic retransmission request (HARQ) mechanism. The analysis includes both the physical (PHY) and medium access (MAC) layers. We investigate the trade-off provided by HARQ, which demands reduced transmit power for a given target outage probability at the cost of more accesses to the channel...
The cellular technology is mostly an urban technology that has been unable to serve rural areas well. This is because the traditional cellular models are not economical for areas with low user density and lesser revenues. In 5G cellular networks, the coverage dilemma is likely to remain the same, thus widening the rural-urban digital divide further. It is about time to identify the root cause that...
Use of Wireless Multimedia Sensor Networks has significantly revolutionized the field of communication and has provided an ease for researchers to get a clear insight of areas which were inaccessible to human beings. The concerning part of the Wireless Multimedia Sensor Networks is its limited living period or energy constraint, small size, limited bandwidth, low processing speed and inaccessibility...
Histopathological analysis of biopsy or surgical specimen is a common clinical practice for diagnostic purposes. Essentially, the process involves slicing the biopsy or surgical sample into very thin slices, placing them on glass slides and viewing them under microscopes. Predominantly, the placement, positioning, and view control is done manually by the pathologists in most of the clinics and hospitals...
With the increasing trend of reading Urdu e-novels, the retrieval of specific information regarding a particular novel is also important. This paper presents a new semantic search engine for Urdu novels named Novel Mania. The search engine is primarily composed of three layers namely ontology modeling, information retrieval and dynamic ontology updations. The ontology modeling is primarily responsible...
The emerging 5G wireless networks will pose extreme requirements such as high throughput and low latency. Caching as a promising technology can effectively decrease latency and provide customized services based on group users behaviour (GUB). In this paper, we carry out the energy efficiency analysis in the cache-enabled hyper cellular networks (HCNs), where the macro cells and small cells (SCs) are...
The backhaul network is a critical challenge towards the success of 5G and corresponding difficulties are many-fold, such as network coverage expansion, very high bandwidth, ultra- low latency and energy consumption, at a minimum cost. No single backhaul solution can address all these requirements but, on the other hand, not all of the backhaul links require the same set of stringent requirements...
Our focus in this paper is a simple Bayesian classification on generalised Scheiddegger-Watson distribution using standard Maximum Likelihood Estimation (MLE). The main barrier in working with Scheiddegger-Watson or matrix variate distributions via standard MLE is the normalising constant that always appears with them. We apply Taylor expansion for approximating the corresponding matrix-based normalising...
We demonstrate the standard approach of Maximum Likelihood Estimation (MLE) for practicability of Grassmann Angular Central Gaussian (GACG) distribution by using Grassmann manifold. Our main concern is then on the applicability of GACG for computer vision application e.g., classification on arbitrarily high dimensional Grassmannian space. We show by numerical experiments that the implementation of...
Our focus in this work is on the practical applicability of matrix variate Fisher-Bingham model for statistical inferences via Maximum Likelihood Estimation (MLE) technique using simple Bayesian classifier. The practicability of such parametric models on high dimensional data (e.g., via manifold valued data) remained a big hurdle since long i.e., mainly due to the difficult normalising constant naturally...
This paper utilizes concepts and tools of switching algebra to describe an algorithm for computing all candidate keys of a relational database. Our algorithm starts with a superkey comprising all attributes, and then uses logical inference to reduce it to the set of candidate keys. The essential step in this inference is the construction of the complete sum of a pertinent switching function. Some...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.