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.
This paper presents validation of ionospheric Global Positioning System (GPS) radio occultation (RO) measurements of the GPS Attitude, Positioning, and Profiling Experiment occultation receiver (GAP-O). The primary source of uncertainty impacting GAP-O data products is the receiver differential code bias (rDCB). A minimization of standard deviations (MSD) technique for rDCB estimate has shown the...
D2D cooperative communication is one of the essential requirements of the next generation networks. As human beings carry D2D devices, their emotions also play a prime role in cooperative data exchange. Several earlier works have discussed the various social factors; none has considered the significance of multiple social networks a user can have contact with. In this paper, we leverage the social...
The D2D communication has high potential to serve multiple users with high data rate within a proximity in the next generation cellular networks. In this paper, we consider a multicast scenario of D2D users where each user wishes to receive the same multicast data at varying data rates. Based on our best knowledge, finding an optimal solution to satisfy the user request in the said context requires...
Ternary Content Addressable Memory (TCAM) capacity problem is an important issue in Software-Defined Networking. Rule caching is an efficient technique to solve the TCAM capacity problem. However, there exists rule dependency problem in wildcard-rule caching technique. In this paper, we utilize cover-set method to solve the rule dependency problem and propose a wildcard-rule caching algorithm to cache...
In this work, we have extended the current success of deep learning and reinforcement learning to process control problems. We have shown that if reward hypothesis functions are formulated properly, they can be used for industrial process control. The controller setup follows the typical reinforcement learning setup, whereby an agent (controller) interacts with an environment (process) through control...
Model order reduction for nonlinear systems has been a challenging problem with limited methods and tools available. One approach is balanced truncation of empirically obtained Gramians (Lall et al., 1999) or controllability/ observability covariance matrices (Hahn et al., 2002). Empirical Gramians provide information about the controllability/ observability which is then used to transform a system...
In this notes paper we report on a preliminary qualitative evaluation of a gamification framework to address collaboration issues in software engineering. Findings suggest that the use of game elements indeed is prone to motivate software developers to foster the resolution of collaboration issues in their teams. Our preliminary results motivated us to design large scale, in-depth, and longitudinal...
In this paper we propose the method of transition from the complex full polarimetric radar signals to univariate uniformly distributed marginals that can be used for more precise copula analysis of statistical dependence between the complex samples of signals received at orthogonally polarized sounding waveforms. The method is applied to meteorological radar signal processing.
Cloud computing has emerged as one of the most authoritative paradigms in the IT industry. In such area confidentiality, flexibility and access control of data are to be considered. Anyhow the data owners and service providers will not be on the same domain, the data will be stored in storage by the service providers. Most of the enterprises use firewalls to protect data against intruders,that they...
It is anticipated from hierarchical clustering theory that there are scaling relationships between halos over a wide range of mass. Observationally it can be difficult to identify the markers that characterize these relationships because of the small numbers of visible probes and confusion from contaminants in projection. Nonetheless, in favorable circumstances it is possible to identify a very useful...
H.264/AVC is the newest worldwide video coding standard, jointly developed by using businesses from ISO/IEC and ITU-T, which targets at reaching improved compression efficiency and a network friendly video representation for different applications like storage, streaming and conversational. A powerful process of compression is proposed in this paper for video compression. In this work we concentrated...
Providing effective and quality feedback to students in higher education has been identified as an integral part of quality teaching by many researchers in the field of education. However, student perceptions vary drastically as to what they perceive academic feedback to really be. Therefore, this paper aims to present freshman engineering student perceptions of academic feedback from an African perspective...
We present the development of a mobile survey spectrometer and fieldable Compton gamma-ray imager. The detector employs CsI(Tl) scintillator coupled to SensL silicon photomultipliers (SiPMs) and incorporates a unique modular design, where individual units can be employed separately in applications requiring a compact detector, e.g. military operations, or combined together for those requiring a more...
In this paper, we investigate the performance of two many-objective evolutionary algorithms to design optical networks. Many-objective algorithms are a particular class of multi-objective algorithms whose goal is to solve problems with four or more conflicting objectives. We compared the state of the art algorithm, called NSGA-III, with a recently proposed swarmbased approach, named MaOPSO. We consider...
Nowadays recommender systems are successfully used in several application domains such in the educational field, e-commerce, tourism, online entertainment, and so on. However, there are some applications that could be aided by recommender systems but no previous study has already been developed to propose a suitable proposal for such applications. In this paper we develop a study related to the use...
The article presents the idea on developing of automated system for monitoring and management of climate and space heating. The developed system is implemented on the most modern components used to create devices with Ethernet - interface; it is versatile, easy to rebuild for specific applications and optimal in terms of its implementation costs.
Healthy coral reefs play a vital role in maintaining biodiversity in tropical marine ecosystems. Deep sea exploration and imaging have provided us with a great opportunity to look into the vast and complex marine ecosystems. Data acquisition from the coral reefs has facilitated the scientific investigation of these intricate ecosystems. Millions of digital images of the sea floor have been collected...
Energy has turned to be one of the most basic needs of the humans. Wind energy has been a major source of energy for the society for the past thousand years. Wind energy is a clean and pollution free energy source which can be relied up on for the long-term future. A wind turbine creates cost-effective, pollution free, reliable sources of energy. A single wind turbine is sufficient for the generation...
In this paper, balanced truncation based on empirical gramians is explored for nonlinear model order reduction of a diesel airpath (DAP) model to facilitate effective nonlinear model predictive control (NMPC) design and implementation. Several issues are identified for the standard empirical gramian formulations, especially for the DAP model whose inputs, states, and outputs are constrained and have...
This paper presents the copula based simulation of weather radar preprocessed input signals with orthogonal polarizations. The use of copulas allows taking into account their mutual dependence in a straightforward and natural way, because the copula relates exactly to the pure dependence between the marginal distributions.
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.