һ

03 June 2026

A new approach from һ University allows applications to combine data from multiple sources in real time – a key capability for modern AI. The research has now been recognised with an international award.

Olaf Hartig, Senior Associate Professor at Linköping University, has received the Best Demo Paper Award at the European Semantic Web Conference (ESWC) in Dubrovnik. The work was carried out in collaboration with Jonas Westman from Scania. “Data available via Web APIs provides an important complement to knowledge graphs. Our approach enables seamless querying across both,” says Olaf Hartig.

Bridging different data ecosystems

Today, data is distributed across many independent systems. At the same time, AI applications increasingly rely on combining such information.
Some systems structure data as knowledge graphs, while others use standard web APIs. Bridging these approaches has been a long-standing challenge.
The solution, called HeFQUIN, enables these data types to be integrated and queried together in real time.

Flexible and efficient solution

HeFQUIN retrieves, translates and combines data on the fly, without the need to store it in advance in a central database. This enables more agile and lightweight AI applications.
The software is available as open source and can be used in both research and industry.

Facts

Conference: European Semantic Web Conference (ESWC), Dubrovnik
Award: Best Demo Paper Award
Project: HeFQUIN
Collaboration: Scania

The research was funded by the Knut and Alice Wallenberg Foundation and the Swedish Research Council.

About Semantic Web research at LiU

Department of Computer and Information Science

Latest news from LiU

A woman in a yellow lab coat and blue gloves.

Dysregulated immune cells cause silent inflammation after heart attack

People with narrowing of the coronary arteries have low-grade, uncontrolled inflammation in the body, even when symptom-free. The findings suggest that some immune cells drive a silent inflammation that may increase the risk of further heart attacks.

En grupp människor som sitter vid ett bord framför en folkmassa.

Participants in UN climate meetings want greater focus on implementation

UN climate negotiations are often criticised for moving too slowly. A new study published in Nature Climate Change examines what changes government delegates and other participants at the COP29 UN climate conference would like to see.

Neil Lagali vid utrustning för att undersöka ögonen.

Eye problems after COVID-19 can now be explained

Mild COVID-19 can cause severe and long-lasting eye problems, according to a study from LiU. The study also explains why it has been difficult for sufferers to get help: the abnormal eye behaviour cannot be detected by standard methods.