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DISIM New Faculty Seminars - December 21st, 2022

Lunedì 12 Dicembre, 2022 by Raffaele D'Ambrosio New Faculty Seminars

DISIM New Faculty Seminars is a welcoming initiative for new members who have recently enrolled at DISIM, offering an opportunity to introduce themselves and summarize some salient aspects of their scientific activity. Details on the next approaching seminars are given below.

  • When: Wednesday December 21st, 2022 - 11:00 am (Italian time).
  • Where: The event will take place in Room A1.7 ("Alan Turing" building). It will also be streamed via Webex, following the link
    (Meeting number: 2731 850 6967; password: JCrPM2mq2y3).
  • Speakers: Prof. Davide Bilò, Dr. Felisia Angela Chiarello, Prof. Andrea De Marcellis, Dr. Abeer Dyoub, Dr. Antonio Ioppolo, Dr. Sobhan Mohamadian (Department of Information Engineering, Computer Science, and Mathematics, University of L'Aquila).
  • Flyer: DISIM - NFS December 2022 

Davide Bilò - Distance-based Sensitivity Oracles

Abstract. In algorithm theory, the term oracle is used to denote a data structure that stores some pre-processed information in a compact way and that can quickly retrieve the data of interest as a response to a sequence of queries when needed. The main goal in oracle design, then, is to find good trade-offs among the space used by the data structure, the time efficiency in answering to a query, and the quality of the information returned by a query. There is a large body of algorithmic research in this direction, especially when distance-based queries on graphs are concerned, due to the many fields of application. In this seminar I will focus on distance-based oracles with sensitivity f, in which the data structure can answer distance-based queries even in the presence of up to f edge faults. In particular, I will present the most recent results on single-source distance oracles with sensitivity f=1 and sub-quadratic-space all-pairs distance oracles with sensitivity f. I will also show how all these oracles can be adapted to report other distance-related measures like vertex eccentricities, diameter, and ST-diameter.
 
Bio. Davide Bilò completed his PhD in Computer Science at the University of L’Aquila in 2007. After 4 years of  research grants spent in-between the ETH of Zurich and the University of L'Aquila, he won an assistant professor position at the University of Sassari, where he became an associate professor in 2019. Currently, he is an associate professor at the University of L’Aquila. Davide Bilò’s research activities focus on the design and analysis of algorithms for network problems as well as on algorithmic aspects of game theory.
 
Felisia Angela Chiarello - Nonlocal traffic flow modeling
 
Abstract. In this talk we will prove the well-posedness of some traffic flow models described by conservation laws characterized by nonlocality in the flux function. In particular, the term nonlocal refers to the dependence of the flux function on a convolution-type term. We will also consider the kinetic derivation of a first-order nonlocal macroscopic traffic model starting from a miscroscopic description of the cars’ trajectories.
 
Bio. Felisia Angela Chiarello is Research fellow (RTDa) in Mathematical Analysis at the University of L'Aquila. She obtained her PhD at Inria of Sophia Antipolis in December 2019. Her research interests span many areas of Mathematical Analysis and Applied Mathematics with a specific emphasis on conservation laws, traffic models, partial differential equations and kinetic theory. 
 

Andrea De Marcellis - Electronic and Photonic Integrated Circuits and Systems 

Abstract. The recent developments of integrated electronic and photonic devices using standard CMOS technologies on silicon have opened new important prospects for applications of advanced solutions in numerous sectors, among which health and communications play prominent roles. This interest is mainly demonstrated by the Strategic Roadmap 2021-2027 (www.photonics21.org) of the European Community where more than 3,000 scientists and technologists as well as more than 1,700 companies highlight how electronic-photonic integration is essential for the development of innovative and globally competitive solutions, to increase the employment of the young generations and to stimulate the birth of technologically advanced companies in the next years. According to this vision, the main topics and goals of the conducted research activities are to carry out design, development, prototyping and characterization of integrated electronic and photonic microsystems, using standard technologies and processes, implementing ASIC (Application-Specific Integrated Circuit), SoC (System-on-Chip), PIC (Photonic Integrated Circuit) and SiP (Silicon Photonics). In particular, in this seminar are presented the main fields of interest, areas of expertise and achieved results in the field of CMOS integrated analog/digital microelectronics and optoelectronics for signal and data conditioning/processing, optical sensing and optical communication for implantable, wearable, portable applications.
 
Bio. Andrea De Marcelli received the degree in Electronic Engineering and the PhD in Microelectronics from University of L’Aquila (Italy) in 2005 and 2009, respectively.Currently, he is Associate Professor of Electronics at the Department ofInformation Engineering, Computer Science and Mathematics, University of L’Aquila (Italy).He is co-inventor of a patent and co-author of a book, two book-chaptersand more than 170 publications in international journals and as conference proceedings with more than 1500citations and H-Indexequal to 23.His main research activities, fields of interest and expertisearerelated to design, development, prototyping and characterization of integrated analog/digital microelectronic and optoelectronicdevices/circuits and systems, implemented in standard technologies and processes, for signal and data conditioning/processing, optical sensing and wireless optical communication for implantable, wearable, portable applications.
 
Abeer Dyoub - Ethics of Human-Machine Interaction

Abstract. Robots in elder care, robot nannies, virtual companions, chatbots, robotic weapons systems, autonomous cars, etc. are examples of some of the Artificial Intelligence (AI) systems currently undergoing research and development. These kinds of systems usually need to engage in complex interactions with humans. To ensure that these systems will not violate the rights of human being and also will carry out only ethical actions (i.e., actions that follow ethical norms of the community in which they are deployed), a combination of AI and ethics has become mandatory. This is the subject for a newly emerging interdisciplinary field known under the name of Machine Ethics.

Bio. Abeer Dyoub is currently an RTDa (researcher Type A) at the Department of Engineering, Computer Science and Mathematics (DISIM), University of L'Aquila. Her research interest focuses on Artificial Intelligence, with special focus on Computational Logic including Intelligent Agents and Multi Agent Systems, Knowledge Representation and Reasoning, Interpretable Machine Learning, and Machine Ethics. she is a fellow of ACM, GRIN, AIxIA, and GULP. She holds a bachelor's degree in electronic engineering from Tishreen University, Syria 2000, a master's degree in computer science 2004 from JMI university, India, and a PhD in ICT from the University of L'Aquila, 2019.

Antonio Ioppolo - Algebras, identities and other drugs

Abstract. An identity is a symbolic expression involving operations and variables which is always satisfied when the variables are replaced in a given algebraic structure. I will start with a motivating example leading into the basic notions of the theory of polynomial identities in algebras. Then I will present the celebrated theorem of Amitsur and Levitzk (1950) stating that a certain standard polynomial is an identity for the algebra of square matrices. This initial combinatorial method proved to be limited until Regev introduced in 1972 a growth function measuring the size of identities. This new analytic approach, combined with techniques from ring theory, combinatorics and representation theory of groups, forms one of the current points of view of the theory. Along the way I shall try to give an idea of the recent developments of the theory when one consider associative algebras endowed with some additional structure.

Bio. Antonio Ioppolo is appointed as Researcher (RTD-B) in Algebra at the University of L'Aquila. He got his PhD in Catania in 2017 and spent his post-doctoral research activities at the State University of Campinas (Brazil) and the University of Milano Bicocca. His research field is non-commutative algebra, with a focus on the theory of polynomial identities.

Sobhan Mohamadian - Reliability and fault tolerance of converters and power electronic systems 

Abstract. The scientific disciplinary of this researcher’s program include studies concerning analysis, design, and the integration of the power electronics components and converters in electric drives of transportation applications such as full-electric aircraft (FEA). In this regard, the activities of the researcher can be divided in two branches: (1) Mathematical models of converters, aimed at studying their reliability and aging over time with analyzing the individual components such as transistors (MOSFET, IGBT) and wide-band-gap devices (SiC, GaN) and passive components such as capacitors, transformers and inductors. (2) Study on the fault-tolerant strategies of the multi-level multi-phase Permanent Magnet Synchronous Motors (PMSM) used in aircraft applications. Fault-tolerance is attributed to the continuous operation of the electric drive even in the case of fault occurrence in some switches, converter legs or machine phases. Multi-level multi-phase drives are beneficiary in the sense that they guarantee this continuous operation provided that the appropriate fault-tolerant control strategies are adopted. 

Bio. Sobhan Mohamadian received the B.Sc. and Ph.D. degrees in electrical engineering from the Iran University of Science and Technology (IUST), Tehran, Iran, in 2007 and 2016, respectively. From 2014 and 2015, he was a Visiting Scholar with the University of Trieste, Trieste, Italy, where he worked on research projects regarding high-power motor drives and multiphase machine modeling and analysis. In 2016, he joined the University of Damghan, Damghan, as an Assistant Professor. From Jan. 2022 he joined the University of L'Aquila as a researcher on power electronics converter, electrical machine drives and renewable energy resources.

 

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