archimedes-Artificial Intelligence, Data Science, Algorithms-greece

 
Artificial Intelligence
 
Data Science
 
Algorithms

ARCHIMEDES Seminar Series - Gerhard Weikum

Dates
2024-01-11 11:00 - 12:00
Venue
Microsoft Teams Meeting

 

 

Archimedes Seminar Series

Με μεγάλη χαρά σας προσκαλούμε στη σειρά ομιλιών Archimedes Seminar Series που διεξάγονται στο αμφιθέατρο της Μονάδας Αρχιμήδης. Η σειρά αυτή θα φιλοξενεί διεθνούς φήμης ερευνητές που δραστηριοποιούνται σε θέματα Τεχνητής Νοημοσύνης, Επιστήμης Δεδομένων και Αλγόριθμων.

Η πρώτη ομιλία θα διεξαχθεί στις 11 Ιανουαρίου 2024, 11:00πμ, με ομιλητή τον Gerhard Weikum – λεπτομέρειες της ομιλίας ακολουθούν. Η ομιλία θα μεταδοθεί και διαδικτυακά μέσω του συνδέσμου που φαίνεται εδώ.

 


Knowledge Graphs in the Age of Large Language Models

Gerhard Weikum (Max Planck Institute for Informatics, Saarbruecken, Germany)

Abstract
Large knowledge graphs (KG's) have become a key asset for search engines and other use cases. They are partly based on automatically extracting structured information from web contents and other texts, using a variety of pattern-matching and machine-learning methods. The semantically organized machine knowledge can be harnessed to better interpret text in news, social media and web tables, contributing to question answering, natural language processing (NLP) and data analytics.
 
A recent trend that has revolutionized NLP is to capture knowledge latently by billions of parameters of language models (LM's), learned at scale from huge text collections in a largely self-supervised manner. These pre-trained models form the basis of fine-tuning machine-learning solutions for tasks that involve both input texts and broad world knowledge, such as question answering, commonsense reasoning and human-computer conversations.
 
This talk identifies major gaps in the coverage of today's KG's, and discusses potential roles of large language models towards narrowing thee gaps and constructing the next KG generation.

Short Biography
Gerhard Weikum is a Scientific Director at the Max Planck Institute for Informatics in Saarbruecken, Germany, and an Adjunct Professor at Saarland University. He co-authored a comprehensive textbook on transactional systems, received the VLDB Test-of-Time Award 2002 for his work on automatic database tuning, and is one of the creators of the YAGO knowledge base which was recognized by the WWW Test-of-Time Award in 2018. Weikum is an ACM Fellow and elected member of various academies. He received the ACM SIGMOD Contributions Award in 2011, a Google Focused Research Award in 2011, an ERC Synergy Grant in 2014, the ACM SIGMOD Edgar F. Codd Innovations Award in 2016, and the Konrad Zuse Medal in 2021.

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Vision

To position Greece as a leading player in AI and Data Science

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Mission

To build an AI Excellence Hub in Greece where the international research community can connect, groundbreaking ideas can thrive, and the next generation of scientists emerges, shaping a brighter future for Greece and the world

 

Welcome to ARCHIMEDES, a vibrant research hub connecting the global AI and Data Science research community fostering groundbreaking research in Greece and beyond. Its dedicated core team, comprising lead researchers, affiliated researchers, Post-Docs, PhDs and interns, is committed to advancing basic and applied research in Artificial Intelligence and its supporting disciplines, including Algorithms, Statistics, Learning Theory, and Game Theory organized around 8 core research areas. By collaborating with Greek and Foreign Universities and Research Institutes, ARCHIMEDES disseminates its research findings fostering knowledge exchange and providing enriching opportunities for students. Leveraging AI to address real-world challenges, ARCHIMEDES promotes innovation within the Greek ecosystem and extends its societal impact. Established in January 2022, as a research unit of the Athena Research Center with support from the Committee Greece 2021, ARCHIMEDES is funded for its first four years by the EU Recovery and Resilience Facility (RRF).

 
 

NEWS

 
Archimedes AGT Afternoon Event (ΑAGTA) will take place on 4 February 2026 at Archimedes premises

Archimedes AGT Afternoon Event (ΑAGTA) will take place on 4 February 2026 at Archimedes premises

2 February 2026

Archimedes AGT Afternoon Event (ΑAGTA) is a newly-established scientific event, focusing on Algorithmic Game Theory and Artificial Intelligence. The first AAGTA workshop will take place on 4 February 2026 at the Archimedes Amphitheatre at Archimedes Unit, Athena Reseach Center, Greece, and will feature two keynote speeches: one by Prof. Paul Goldberg of the University of Oxford, UK, and one by Prof. Christos Papadimitriou of Columbia University, USA and Archimedes Unit, Athena Reseach Center, Greece.

Archimedes Seminar by Michael I. Jordan on

Archimedes Seminar by Michael I. Jordan on "Nonnegative Supermartingales, Sequential Testing, and Statistical Contract Theory"

28 January 2026

On Tuesday 10 February, 2026, from 3:00 pm to 5:00 pm, at the Archimedes Amphitheatre (1 Artemidos Street, 15125, Marousi, Archimedes, Athena Research Center, Greece), Michael I. Jordan (Researcher at Inria Paris, France, and Professor Emeritus in the Department of Electrical Engineering & Computer Science, and in the Department of Statistics at the University of California, Berkeley, USA, will deliver an Archimedes Seminar on "Nonnegative Supermartingales, Sequential Testing, and Statistical Contract Theory."

Archimedes Talk by Jason Milionis on

Archimedes Talk by Jason Milionis on "From Myerson to Automated Markets: New Research Directions in Exchange Design"

25 January 2026

On Wednesday 28 January, 2026, from 4:00 pm to 5:00 pm, at the Archimedes Amphitheatre (1 Artemidos Street, 15125, Marousi, Archimedes, Athena Research Center, Greece), Jason Milionis, a 5th and final year Ph.D. candidate in the Computer Science Department at Columbia University, USA, and a Senior Researcher at Category Labs, will deliver an Archimedes talk on "From Myerson to Automated Markets: New Research Directions in Exchange Design."

Archimedes Talk by Dimitris Giovanis on

Archimedes Talk by Dimitris Giovanis on "Learning the “Right” Space for Data-driven Modeling and Uncertainty Quantification in Complex / Multiscale Systems"

20 January 2026

On Wednesday 4 February, 2026, from 1:00 pm to 2:00 pm, at the Archimedes Amphitheatre (1 Artemidos Street, 15125, Marousi, Archimedes, Athena Research Center, Greece), Professor Dimitris Giovanis, Assistant Research Professor in the Department of Civil and Systems Engineering, The Johns Hopkins University, USA, and fellow of the Hopkins Extreme Materials Institute, a member of the Center on Artificial Intelligence for Materials in Extreme Environments, the Institute for Data Intensive Engineering and Science, the Johns Hopkins Mathematical Institute for Data Science, and the Data Science and AI Institute, will deliver an Archimedes talk on "Learning the “Right” Space for Data-driven Modeling and Uncertainty Quantification in Complex / Multiscale Systems."

Director Timos Sellis Moderates a Panel on AI and Health Policy

Director Timos Sellis Moderates a Panel on AI and Health Policy

8 January 2026

On Thursday, 11 December 2025, during the 2025 Panhellenic Congress on Health Economics and Policy, Professor Timos Sellis moderated an expert panel on ¨How AI May Transform Healthcare and Health Policies” and exchanged views with Professor Costas Athanassakis, Professor Theoklis Zaoutis, Dr. Georgios Papanastasiou, and Dr. Harietta Eleftherochorinou.

More news items here
 
 

The project “ARCHIMEDES Unit: Research in Artificial Intelligence, Data Science and Algorithms” with code OPS 5154714 is implemented by the National Recovery and Resilience Plan “Greece 2.0” and is funded by the European Union – NextGenerationEU.

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