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Tbilisi, Georgia

The Free University of Tbilisi is a private university established in 2007 via the merge of ESM Tbilisi and the Tbilisi Institute of Asia and Africa. The main goal of Kakha Bendukidze, FreeUni's founder, was providing opportunities for a quality education for every motivated adult, regardless of financial conditions, believing that clarity of purpose and the future were essential to any human endeavour.The Free University is organized into 7 constituent schools: the Institute of Asia and Africa , Business, Law, Computer science and Maths, Visual Arts and Design, Governance and Social science, Physics and Law Schools. While the Free University is governed by a combination of its Board of Overseers and the Knowledge Foundation, each school's faculty oversees its curriculum and degree programs. In addition to a central campus shared with Agricultural University of Georgia in downtown Tbilisi, the University owns facilities all around Georgia, including Anaseuli Education Center.The current Rector of The Free University is prof. Guram Chikovani. There are 56 full-time and 84 part-time lecturers. 44 hold PhDs; 25 are PhD students. The programs are run on a daily basis by deans and academic coordinators.The University consists of 7 Schools: Institute of Asia and Africa / International Relations Business School / ESM Law School / LAW Computer science and Maths School / MACS Physics School / PHYSICS Governance and Social science School / GOV Visual Arts and Design School / VADS.↑ ↑ ↑ ↑ Wikipedia.

Osmanov Z.,Free University of Tbilisi
Monthly Notices of the Royal Astronomical Society | Year: 2014

In this paper, we study the possibility of generation of electromagnetic waves in the magnetospheres of radio magnetars by means of the quasi-linear diffusion (QLD). Considering the magnetosphere composed of the so-called beam and the plasma components, respectively, we argue that the frozen-in condition will inevitably lead to the generation of the unstable cyclotron modes. These modes, via the QLD, will in turn influence the particle distribution function, leading to certain values of the pitch angles, thus to an efficient synchrotron mechanism, producing radio photons. We show that for three known radio magnetars, the QLD might be a realistic mechanism for producing photons in the radio band. © 2014 The Author.

Kakushadze Z.,Quantigic Solutions LLC | Kakushadze Z.,Free University of Tbilisi
Journal of Informetrics | Year: 2016

We propose a new index to quantify SSRN downloads. Unlike the SSRN downloads rank, which is based on the total number of an author's SSRN downloads, our index also reflects the author's productivity by taking into account the download numbers for the papers. Our index is inspired by - but is not the same as - Hirsch's h-index for citations, which cannot be directly applied to SSRN downloads. We analyze data for about 30,000 authors and 367,000 papers. We find a simple empirical formula for the SSRN author rank via a Gaussian function of the log of the number of downloads. © 2015 Elsevier Ltd.

Parrado-Hernandez E.,Charles III University of Madrid | Ambroladze A.,Free University of Tbilisi | Shawe-Taylor J.,University College London | Sun S.,East China Normal University
Journal of Machine Learning Research | Year: 2012

This paper presents the prior PAC-Bayes bound and explores its capabilities as a tool to provide tight predictions of SVMs' generalization. The computation of the bound involves estimating a prior of the distribution of classifiers from the available data, and then manipulating this prior in the usual PAC-Bayes generalization bound. We explore two alternatives: to learn the prior from a separate data set, or to consider an expectation prior that does not need this separate data set. The prior PAC-Bayes bound motivates two SVM-like classification algorithms, prior SVM and h- prior SVM, whose regularization term pushes towards the minimization of the prior PAC-Bayes bound. The experimental work illustrates that the new bounds can be significantly tighter than the original PAC-Bayes bound when applied to SVMs, and among them the combination of the prior PAC-Bayes bound and the prior SVM algorithm gives the tightest bound. © 2012 Emilio Parrado-Herna'ndez, Amiran Ambroladze, John Shawe-Taylor and Shiliang Sun.

Osmanov Z.,Free University of Tbilisi
International Journal of Astrobiology | Year: 2016

Assuming the possibility of existence of a supercivilization we extend the idea of Freeman Dyson considering pulsars instead of stars. It is shown that instead of a spherical shell the supercivilization must use ring-like constructions. We have found that a size of the 'ring' should be of the order of (10-4-10-1) AU with temperature interval (300-600) K for relatively slowly rotating pulsars and (10-350) AU with temperature interval (300-700) K for rapidly spinning neutron stars, respectively. Although for the latter the Dyson construction is unrealistically massive and cannot be considered seriously. Analyzing the stresses in terms of the radiation and wind flows it has been argued that they cannot significantly affect the ring construction. On the other hand, the ring in-plane unstable equilibrium can be restored by the energy which is small compared with the energy extracted from the star. This indicates that the search for infrared ring-like sources close to slowly rotating pulsars seems to be quite promising. © 2015 Cambridge University Press.

Osmanov Z.,Free University of Tbilisi
International Journal of Modern Physics D | Year: 2013

We study the influence of the centrifugally driven curvature drift instability (CDI) on the dynamics of relativistic electrons in the magnetospheres of active galactic nuclei (AGN). We generalize in our previous paper by considering relativistic particles with different initial phases. Considering the Euler continuity and induction equations, by taking into account the resonant conditions, we derive the growth rate of the CDI. We show that due to the centrifugal effects, the rotational energy is efficiently pumped directly into the drift modes, that leads to the generation of a toroidal component of the magnetic field. As a result, the magnetic field lines transform into such a configuration when particles do not experience any forces and since the instability is centrifugally driven, at this stage the CDI is suspended. © 2013 World Scientific Publishing Company.

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