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General Science

I finished my PhD

It is done. I finished my PhD. You can find my thesis at the server of University of Hildesheim and my defense presentation on Youtube.

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News

WikidataShow

Some of you might know our project about school archives. This catalogues historical sources about schools and helps researchers to find these sources easier. One big problem we came across when building this platform was the effort to collect basic information about a school. This is very time-consuming (there are more than 1000 schools in […]

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General

Semantic MediaWiki Conference (SMWCon) Fall 2017

Last week there was the SMWCon, the european conference on Semantic MediaWiki. It was held in Rotterdam. Our venue was directly in the Zoo in the middle of the aquarium. So we could watch sharks and turtles during the talks!! But there were also very interesting talks. The information to most of the talks you […]

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Summaries

Semantic Web Technologies – RDFS and SPARQL

Summary of week two for the course Knowledge Engineering with Semantic Web Technologies 2015 by Harald Sack at OpenHPI. Reification allows you to make reference statements. Therefore a statement also gets an URL. It also allows you to make statements about statements and assumptions about assumptions (e.g. Sherlock Holmes thinks that the gardener murdered the […]

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Summaries

Semantic Web Technologies – Knowledge Engineering

Summary of week sic for the course Knowledge Engineering with Semantic Web Technologies 2015 by Harald Sack at OpenHPI. Linked Data Engineering In general it is difficult to get data, because it is distributed into different databases and you need different APIs to get the data -> data islands. Applying semantic web technologies allows you […]

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Summaries

Semantic Web Technologies – Ontological Engineering

Summary of week five for the course Knowledge Engineering with Semantic Web Technologies 2015 by Harald Sack at OpenHPI. Ontology Engineering Pyramid for knowledge management: Data: raw data, facts about event Information: a message to change the receiver’s perception Knowledge: experience, context, information + semantics Wisdom: application of knowledge in context In general it makes […]

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Summaries

Semantic Web Technologies – RDF

Summary of week one for the course Knowledge Engineering with Semantic Web Technologies 2015 by Harald Sack at OpenHPI. The first week covers the basic principles of the technologies for the semantic web, especially RDF, which is one of the languages you can use for encoding information semantically. The basic principle behind the technologies are […]