Guest lecture Wednesday January 18th, 2023: Associate Professor Robert Wrembel, Faculty of Computing and Telecommunications, at Poznan University of Technology, Poland

Professional (academic) contact persons is Professor Lars Ailo Bongo.

Target group: All undergarduate and garduate students with an interest in AI / machine learning, PhD students, employees and external from industry

Welcome!

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Date: Wednesday January 18th, 2023, at 14:15
Place: Teknologibygget 1.023 (map).
Title: " Still open issues in data integration and deduplication from a perspective of industrial projects "
Lecturer: Associate Professor Robert Wrembel, Faculty of Computing and Telecommunications, at Poznan University of Technology, Poland

Abstract
There are two fundamental data integration architectures, namely a virtual and a physical. The first one is characterized by on-the-fly integration, whereas in the second one, data are integrated and materialized in advance. The virtual architecture is instantiated either in federated databases or mediated systems. The physical architecture is instantiated either as a data warehouse of a data lake system. In all of these architectures data source integration is implemented by means of an integration layer. Designing this layer is challenging due its complexity and data processing performance.

In this talk, I will provoke a discussion on what problems one can encounter while designing the integration layer. I'll also outline still open challenges in this area. The presented findings are based on my experience from research and commercial data integration projects done for a financial sector, healthcare sector, and software development sector. In particular, I will cover the following: (1) challenges in designing data integration processes, (2) faulty data and cleaning, as well as (3) deduplicating large row-like data.

Very short bio
Robert Wrembel (PhD, Dr. Habil.) is an associate professor in the Faculty of Computing and Telecommunications, at Poznan University of Technology (Poland). In 2008 he received a post-doctoral degree in computer science (habilitation), specializing in database systems and data warehouses. He has been a deputy dean of the Faculty of Computing and Management (2008-2012) and the Faculty of Computing (2012-2016). Since Jan 2023 he is a chair of the Data Processing Technologies group at Poznan University of Technology.

He was a consultant at software house Rodan Systems (2002-2003) and a lecturer at Oracle Poland (1998-2005). Within the last 10 years he has realized three research projects (two international) and three R&D projects (two for Samsung Electronics and one for a Polish company in the sector of energy production). Currently, as a team leader, he is realizing the fourth R&D project for the biggest Polish bank. He leaded at his University the Erasmus Mundus Joint Doctorate Program - Information Technologies for Business Intelligence - Doctoral College (2013-2020). He cooperates with IBM Software Lab Kraków in Poland and is an IT consultant in a private hospital.

Robert visited numerous research and education centers, including: Universitat Politècnica de Catalunya - BarcelonaTech (Catalunya), Université Lyon 2 (France), Universidad de Costa Rica (Costa Rica), Klagenfurt University (Austria), Loyola University (USA), INRIA Paris-Rocquencourt (France), and Université Paris Dauphine (France). In 2012 he graduated from a 2-months innovation and entrepreneurial program at Stanford University. In 2013 he has done an internship in a BI company Targit (USA).

In 2010 he received the IBM Faculty Award for highly competitive research, in 2011 he was awarded the Medal of the Committee of National Education (from the Minister of National Education), in 2016 - the Silver Medal for Long-lasting Service (from the President of the Republic of Poland), in 2019 - IBM Shared University Research Award, and in 2019 - International Federation for Information Processing (IFIP) Service Award. He is a senior ACM member, a country representative in the IFIP Technical Committee TC 2 - Software: Theory and Practice, and a chair the of the IFIP Working Group 2.6 (Database). He is a regular editorial board member of the Data & Knowledge Engineering journal.

Kortnytt fra Institutt for informatikk

Fuglesteg, Jan jan.fuglesteg@uit.no Studierådgiver