Athanasios Tsakalidis
Encyclopedia
Athanasios K. Tsakalidis is a Greek computer scientist
Computer scientist
A computer scientist is a scientist who has acquired knowledge of computer science, the study of the theoretical foundations of information and computation and their application in computer systems....

, from Katerini
Katerini
Katerini is a town in Central Macedonia, Greece, the capital of Pieria regional unit. It lies on the Pierian plain, between Mt. Olympus and the Thermaikos Gulf, at an altitude of 14 m. The town, which is one of the newest in Greece, has a population of 83,764...

 in northern Greece
Greece
Greece , officially the Hellenic Republic , and historically Hellas or the Republic of Greece in English, is a country in southeastern Europe....

.

Although his first studies were in mathematics at the Aristotelian University of Thessaloniki, he earned a second degree in Informatics
Informatics (academic field)
Informatics is the science of information, the practice of information processing, and the engineering of information systems. Informatics studies the structure, algorithms, behavior, and interactions of natural and artificial systems that store, process, access and communicate information...

 at the University of Saarland
Saarland University
Saarland University is a university located in Saarbrücken, the capital of the German state of Saarland, and Homburg. It was founded in 1948 in Homburg in co-operation with France and is organized in 8 faculties that cover all major fields of science...

, Germany. He earned his Master's (thesis: "Sorting Presorted Files") from this University, along with a PhD in Computer science
Computer science
Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...

, with a thesis entitled "Some Results for the Dictionary Problem", which he completed under Professor Kurt Mehlhorn
Kurt Mehlhorn
Kurt Mehlhorn is a German computer scientist. He has been a vice president of the Max Planck Society and is director of the Max Planck Institute for Computer Science.-Education:...

, director of the Max Planck Institute for Informatics.

He returned to Greece after participating in research work for the DFG
Deutsche Forschungsgemeinschaft
The Deutsche Forschungsgemeinschaft is an important German research funding organization and the largest such organization in Europe.-Function:...

 (Deutsche Forschungsgemeinschaft
Deutsche Forschungsgemeinschaft
The Deutsche Forschungsgemeinschaft is an important German research funding organization and the largest such organization in Europe.-Function:...

, the German community of research) and professional teaching at the University of Saarland
Saarland University
Saarland University is a university located in Saarbrücken, the capital of the German state of Saarland, and Homburg. It was founded in 1948 in Homburg in co-operation with France and is organized in 8 faculties that cover all major fields of science...

 related to Data Structures, Graph Algorithms
Graph theory
In mathematics and computer science, graph theory is the study of graphs, mathematical structures used to model pairwise relations between objects from a certain collection. A "graph" in this context refers to a collection of vertices or 'nodes' and a collection of edges that connect pairs of...

, Computational Geometry
Computational geometry
Computational geometry is a branch of computer science devoted to the study of algorithms which can be stated in terms of geometry. Some purely geometrical problems arise out of the study of computational geometric algorithms, and such problems are also considered to be part of computational...

 and programming. In Greece, he was given the chance to successfully back-up his work by becoming a professor at the University of Patras
University of Patras
University of Patras is a university established in 1964 in Patras, Greece. Initially housed in the city centre, the university's campus is now located in the adjacent municipality of Rio...

, where he is currently living and teaching. Since then, he has helped the general introduction of informatics to Greece, and is head of the faculty.

His research interests include: Data Structures, Graph Algorithms, Computational Geometry, GIS, Medical Informatics, Expert System
Expert system
In artificial intelligence, an expert system is a computer system that emulates the decision-making ability of a human expert. Expert systems are designed to solve complex problems by reasoning about knowledge, like an expert, and not by following the procedure of a developer as is the case in...

s, Databases, Multimedia
Multimedia
Multimedia is media and content that uses a combination of different content forms. The term can be used as a noun or as an adjective describing a medium as having multiple content forms. The term is used in contrast to media which use only rudimentary computer display such as text-only, or...

, Information Retrieval
Information retrieval
Information retrieval is the area of study concerned with searching for documents, for information within documents, and for metadata about documents, as well as that of searching structured storage, relational databases, and the World Wide Web...

, and Bioinformatics
Bioinformatics
Bioinformatics is the application of computer science and information technology to the field of biology and medicine. Bioinformatics deals with algorithms, databases and information systems, web technologies, artificial intelligence and soft computing, information and computation theory, software...

.

He has also participated in many EU research programs: ESPRIT, RACE, AIM, STRIDE, Basic Research Actions in ESPRIT, ESPRIT Special Actions, TELEMATICS Applications, ADAPT, HORIZON, ΕΠΕΤ ΙΙ, ΥΠΕΡ, ΤΕΝ – TELECOM, IST, LEONARDO DA VINCI, MARIE CURIE, SOCRATES.

He was also a visiting professor at King's College London
King's College London
King's College London is a public research university located in London, United Kingdom and a constituent college of the federal University of London. King's has a claim to being the third oldest university in England, having been founded by King George IV and the Duke of Wellington in 1829, and...

 (2003–2006).

He is one of the 48 writers of a computer science book, Handbook of Theoretical Computer Science, Vol 1 Elsevier Science publishers
Elsevier
Elsevier is a publishing company which publishes medical and scientific literature. It is a part of the Reed Elsevier group. Based in Amsterdam, the company has operations in the United Kingdom, USA and elsewhere....

, co-published by MIT Press
MIT Press
The MIT Press is a university press affiliated with the Massachusetts Institute of Technology in Cambridge, Massachusetts .-History:...

, his work being, along with professor Kurt Mehlhorn
Kurt Mehlhorn
Kurt Mehlhorn is a German computer scientist. He has been a vice president of the Max Planck Society and is director of the Max Planck Institute for Computer Science.-Education:...

, in Chapter 6: Data Structures (his favourite field).

External links

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