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michael.uschold@semanticarts.com

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Michael Uschold

Michael F. Uschold, PhD is an internationally recognized expert with over two decades experience in developing and transitioning semantic technology from academia to industry. He pioneered the field of ontology engineering, co-authoring the first paper, Ontologies: Principles, Methods and Applications, and co-presenting the first tutorial on the topic in 1995. He also authored the influential paper, “Enterprise Ontology.” Michael is Semantic Arts' ontology developer and semantic modeling expert.

Resume

What is unique about Michael Uschold?

Michael is an excellent communicator and is unusually passionate about training. He thrives on helping clients understand how semantic technologies work so that they can move forward on their own. He strives to simplify. He is patient and meets the client where they are. He taught at the first semantic web summer school in 2003.

Michael knows how to get to the bottom of what matters. Given a complex web of unstructured goals, issues, data and information, he asks perceptive and probing questions. He distills the information into the essential ideas and communicates a clear picture in terms that the client understands. He has used this skill to write two seminal papers in the ontology field and for keynote talks.

Michael pays attention to details and produces quality work products. He goes the extra mile to check and re-check from different perspectives to root out errors and inconsistencies. He takes extra time to make it easy for the client to make optimal use of the work products.

Michael co-pioneered the field of ontology engineering. He led a team of five who created one of the first Enterprise Ontologies. The team carefully studied a variety of key concepts in business enterprises and crafted English and formal definitions. He described those efforts in widely referenced papers that resulted in a new subfield and a methodology still used 15+ years later. He is currently co-developing and maintaining gist, Semantic Arts’ business ontology that has been used in numerous enterprise ontology projects.

Michael has a PhD in Artificial Intelligence with nearly thirty years experience building and using ontologies -- twenty-two of those for industry and government. He has published numerous papers including the first comprehensive introduction to the emerging ontology field. He has given numerous invited talks and keynote presentations at companies, universities, government organizations and international conferences and workshops.

Answers to your Questions

Michael Uschold
I don’t know the history.  It makes sense from the perspective that an OWL restriction is a class whose membership is restricted to include only individuals that satisfy certain conditions. Unfortunately, that is also true for complex classes defined using union, intersection and complement; which could equally well have been called restrictions - but they are not.  Thus it is...Read More
Michael Uschold
First, an OWL restriction is a class. Like any other class, it has members.  It is different from other classes in that an OWL restriction is a class defined to include just those individuals that are linked via a specific property to other individuals or literals. For example, the class of all persons that graduated from college includes just those individuals that are linked via the...Read More
Michael Uschold
Here is a real world example from a recent project modeling health insurance. Marketing campaigns  target specific populations for different products. Health insurance companies also market to physicians who usually sign on in groups. So we want to represent groups of persons in general, and also groups of only physicians.  Say we have the class Physician as a subclass of Person; we can...Read More
Michael Uschold
A relational database is designed to answer a specific range of queries for which it is optimized. The process of optimizing involves tradeoffs that can make formulating and answering other kinds of queries very time-consuming. In today’s fast changing world, you can ill afford to be locked into one way of thinking.  Semantic technology breaks those chains -- you don’t have to...Read More
Michael Uschold
Say you are modeling hospitals. From the perspective of a janitor, or builder, Hospital would be a subclass of Building. From a legal perspective,  Hospital would be a subclass of LegalOrganization, one that is accredited to provide health services to a number of registered beds.  Let’s say that in the upper ontology, LegalOrganization is a subclass of Organization and...Read More