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BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260305T130000
DTEND;TZID=Europe/Brussels:20260305T140000
DTSTAMP:20260415T233857
CREATED:20260130T120758Z
LAST-MODIFIED:20260223T194345Z
UID:2622-1772715600-1772719200@www.naxys.be
SUMMARY:Leila Van Keirsbilck (UCLouvain)
DESCRIPTION:Title: Mapping and sampling impacts on centrality measures ability to explain financial institutions losses in crisis periods. \nAbstract:  \nSince the 2008 crisis has triggered a huge interest in the financial networks literature\, researchers found that node centrality measures computed from a network representation of the financial system before a crisis period could explain partly losses incurred during the crisis. But how do the choices made in order to obtain a specific network representation affect this ability of node centrality measures to explain losses? This article tests whether changes in the network mapping specification and changes in the sampling affect the econometric relation between losses and the systemic vulnerability of institutions determined by a centrality measure. We find that the significance of the classic shortest path betweenness centrality is highly impacted by a decrease in the network size. We also perform a best subset selection exercise showing that alternative betweenness measures\, more robust to changes in the network size\, perform as good as other classic centralities in explaining losses. \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/leila-van-keirsbilck-uclouvain/
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BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260424T090000
DTEND;TZID=Europe/Brussels:20260424T170000
DTSTAMP:20260415T233857
CREATED:20260127T091640Z
LAST-MODIFIED:20260127T091735Z
UID:2619-1777021200-1777050000@www.naxys.be
SUMMARY:naXys Research Day
DESCRIPTION:naXys Research Day from 9 a.m. (Château de Namur).
URL:https://www.naxys.be/event/naxys-research-day-2/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260427T130000
DTEND;TZID=Europe/Brussels:20260427T140000
DTSTAMP:20260415T233857
CREATED:20260408T162202Z
LAST-MODIFIED:20260408T162529Z
UID:2657-1777294800-1777298400@www.naxys.be
SUMMARY:Harry Shaw (Xyngal Morph)
DESCRIPTION:Title: Overview of quantum chemistry investigations into classically studied materials with potentially useful quantum properties \nListe de tous les auteurs : Harry Shaw1\, Deborah Preston1\, Virginia Ayres2\, Kyle Sherbert3\, Naveed Naimipour4\, Nick Savino6\, Manon Bart5\, Ryan Glasser6 \n(1) Xyngal Morph LLC\, Bel Air\, MD \n(2) Department of Electrical and Computer Engineering\, Michigan State University\, East Lansing\, MI\, USA \n(3) Department of Computer Science\, Holy Cross University\, Notre Dame\, IN\, USA \n(4) Engineering Faculty\, Wilbur Wright College\, Chicago\, IL \n(5) Namur Institute for Complex Systems\, University of Namur\, Namur\, Belgium \n(6) School of Science and Engineering\, Tulane University\, New Orleans\, LA\, USA \nAbstract:  \nWhile at NASA Goddard Space Flight Center\, several investigations were conducted to take materials that were well characterized in the classical domain to determine if they could be utilized in what can be called the “quantum domain”. Of special interest were radiation effects on GaN nanowires1\,  flying qubit investigations2\, and tautomers which could be utilized in a variety of quantum circuits. The tautomer investigations were performed on cis- and trans-azobenzene and the proton tautomer croconic acid. Also of interest are the cyclopentadienyls Bis(cyclopentadienyl)cobalt(II) and  Bis(cyclopentadienyl)iron with properties that could make them good candidates for spintronic applications3. In this talk we will discuss some aspects of these investigations including our use of Density Functional Theory (DFT) tools4. \nNASA’s interest lies in how these materials could be used in systems for quantum communications\, computing or other useful applications. Most of this research was conducted by graduate students and faculty associated with our NASA internships. Additional parallel research paths included development of optical angular momentum (OAM) capabilities\, quantum entanglement\, optical neural networks5\, and quantum compressive sensing6. \n\nJacobs\, B. W.\, V. M. Ayres\, R. M. Ronningen\, A. F. Zeller\, E. H. Carey\, M. A. Crimp\, M. P. Petkov\, S.L. Rutledge \,  J.B. Benavides\,   H.C. Shaw et al. “Heavy Ion Interactions with Nanotubes and Nanowires.” In APS March Meeting Abstracts\, vol. 1\, p. 1163. 2006.\nDong\, H.\, Panda\, G.\, Xie\, K.\, Ayres\, V.\, Shaw\, H.\, Preston\, D.\, & Deshpande\, M. (2017). Flying qubit investigations for heterostructure-based qubit implementations. In 2017 IEEE 17th International Conference on Nanotechnology\, NANO 2017 (pp. 636-640).\nLeber\, Roland. Growth and Characterisation of Metallocene Based Thin Films for Spintronic Applications. Diss. UCL (University College London)\, 2018.\nhttps://www.scm.com/amsterdam-modeling-suite/adf\nBart M\, Savino NJ\, Regmi P\, Cohen L\, Safavi H\, Shaw H\, Lohani S\, Searles TA\, Kirby BT\, Lee H\, Glasser RT. Deep learning for enhanced free-space optical communications. Machine Learning: Science and Technology. 2022.\nSherbert\, Kyle M.\, Naveed Naimipour\, Haleh Safavi\, Harry C. Shaw\, and Mojtaba Soltanalian. “Quantum Compressive Sensing: Mathematical Machinery\, Quantum Algorithms\, and Quantum Circuitry.” Applied Sciences 12\, no. 15 (2022): 7525.https://www.mdpi.com/2076-3417/12/15/7525\n\nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/harry-shaw-xyngal-morph/
CATEGORIES:NAXYS Seminar
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BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20260507T130000
DTEND;TZID=Europe/Brussels:20260507T140000
DTSTAMP:20260415T233857
CREATED:20260404T070617Z
LAST-MODIFIED:20260404T070741Z
UID:2653-1778158800-1778162400@www.naxys.be
SUMMARY:Koichiro Yawata (Institute of Science\, Tokyo)
DESCRIPTION:Title: Reduced-Order Control of Coupled Phase Oscillator Populations and Hypergraph-Based Approaches to Combinatorial Optimization Problems\n \nAbstract:  \nIn this seminar\, I will present two recent pieces of work from my research: one on reduced-order control of coupled oscillator populations and another on hypergraph-based approaches to combinatorial optimization. \n1. Reduced-Order Control of Coupled Oscillator Populations via Frequency-Dependent Forcing\nWe propose a frequency-dependent forcing framework for heterogeneous populations of coupled phase oscillators. Using the Ott-Antonsen ansatz\, we derive a low-dimensional description of the collective dynamics and study control methods for the macroscopic phase and synchronization level. \n2. Hypergraph Neural Networks Accelerate MUS Enumeration\nWe propose a hypergraph-neural-network-based method for accelerating MUS enumeration in constraint satisfaction problems. By combining hypergraph modeling with reinforcement learning\, the method reduces satisfiability checks and improves enumeration efficiency. \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/koichiro-yawata-institute-of-science-tokyo/
CATEGORIES:NAXYS Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Brussels:20261001T130000
DTEND;TZID=Europe/Brussels:20261001T140000
DTSTAMP:20260415T233857
CREATED:20260402T100822Z
LAST-MODIFIED:20260408T162039Z
UID:2650-1790859600-1790863200@www.naxys.be
SUMMARY:Nelly Litvak (Eindhoven University of Technology)
DESCRIPTION:Title:  \nAbstract:  \nThis seminar will take place in Room S08 at the Faculty of Sciences.
URL:https://www.naxys.be/event/nelly-litvak-eindhoven-university-of-technology/
CATEGORIES:NAXYS Seminar
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