They went on to create the PubGene public search engine,[2] exemplifying the approach they pioneered by presenting biomedical terms as graphical networks based on their co-occurrence in MEDLINE texts.

The PubGene search engine has since been discontinued and incorporated into a commercial product.

[2] Co-occurrence networks provide a visual overview of possible relationships between terms and facilitate medical literature retrieval for relevant sets of articles implied by the network display.

[3] Original development of PubGene technologies was undertaken in collaboration between the Norwegian Cancer Hospital (Radiumhospitalet) and the Norwegian University of Science and Technology.

PubGene provides CoreMine Medical as a service open to the public.