Subscribe to DSC Newsletter
Athanassios Hatzis
Share on Facebook
Share

Athanassios Hatzis's Discussions

The Atomic Information Resource Data Model - AIR

Started Mar 21, 2015 0 Replies

The relational and the entity-relationship model made a huge impact in the IT world for nearly half a century. But during this long period of standardization it meant also one thing, everyone had to…Continue

Tags: rdf, xml, nosql, database, model

Gifts Received

Gift

Athanassios Hatzis has not received any gifts yet

Give a Gift

 

Athanassios Hatzis's Page

Profile Information

Short Bio
Dr. Athanassios Hatzis is the founder of HEALIS, an international alliance of independent professionals and consultants in the emerging field of data science. He has been a Health Information Technology Managing Director in the Department of Neurosurgery in the University of Athens situated at “Evangelismos” General Hospital for four years. Besides his Health IT management skills, Athanassios I. Hatzis has a strong research background in clinical applications of Speech Technology. He has spent ten years on research and education in top U.K universities and he has published both in Speech Technology and neurotechnology sectors in peer reviewed journals and conferences. He is currently active in database modelling and semantic web technology.
My Web Site Or LinkedIn Profile
http://healis.eu
Field of Expertise
Analytics, Data Integration, Visualization, BI, Data Science
Professional Status
Consultant
Years of Experience:
10+
Your Company:
healis.eu
Industry:
IT
Your Job Title:
IT Expert & Research Scientist/Engineer
How did you find out about DataScienceCentral?
LinkedIn
Interests:
Finding a new position, Networking, New venture

Athanassios Hatzis's Blog

Data Modelling Topologies of a Graph Database

Posted on June 17, 2017 at 3:00am 0 Comments

The associative data graph database model is still a heavy hitter, stacking up well against property graphs and triples/quadruples. Expect a comeback.

Definition

There is a lot of confusion with the definition of graph databases. In my opinion, any definition that avoids any reference to the semantics of nodes and edges or their internal structure…

Continue

A Quick Guide on How to Prevail in the Graph Database Arena

Posted on February 13, 2017 at 10:30pm 2 Comments

Introduction

There are endless discussions on the databases arena about which DBMS is best suited for operational or data warehousing analytics, which one is the most efficient for online transaction processing, or which one is suitable for semantic integration. Recently graph databases are growing in popularity, especially in the enterprise space, and perhaps that adds more headache on those vendors that try to differentiate from competition…

Continue

Towards a New Data Modelling Architecture - Part 2

Posted on October 12, 2016 at 12:30am 0 Comments

Atomic Information Resource (AIR)

How do we design a data model, how do we connect data, how do we represent information, how do we store or retrieve them ? These are all fundamental questions in data modeling but there is a common key to unlock them. You have to start by defining a primitive information resource, and then understand how one can build complex information structures on top of…

Continue

Associative Data Modeling Demystified - Part1

Posted on September 7, 2016 at 4:00am 0 Comments

Relation, Relationship and Association

While most players in the IT sector adopted Graph or Document databases and Hadoop based solutions, Hadoop is an enabler of HBase column store, it went almost unnoticed that several new DBMS, AtomicDB previous database engine of …

Continue

Comment Wall

You need to be a member of Data Science Central to add comments!

Join Data Science Central

  • No comments yet!
 
 
 

Follow Us

Videos

  • Add Videos
  • View All

Resources

© 2017   Data Science Central   Powered by

Badges  |  Report an Issue  |  Privacy Policy  |  Terms of Service