Slavko's main research interests are information retrieval and information extraction. Specifically, he is trying to enrich the extracted data from text using parallel and iterative combination of entity extraction, relationship extraction and coreference resolution techniques. Furthermore, his research also focuses on data merging, redundancy elimination and ontologies.
More research-related information can be found on his wiki: http://zitnik.si/research.
His personal blog: http://zitnik.si.