Constraint-based recommender applications provide valuable support in item selection processes related to complex products and services. This type of recommender operates on a knowledge base that contains a deep model of the product assortment as well as constraints representing the company’s marketing and sales rules. Due to changes in the product assortment as well as in marketing and sales r...

Skull base tumors arise from the cranial base or reach it, either from an intracranial or extracranial origin. A diverse group, these tumors present unique management challenges because of their relative rarity, typically deep location, close proximity to critical neurovascular structures, and extension beyond classically taught anatomic and specialty boundaries. Management outcomes for skull b...

The problem of automatically reasoning using a relatively large knowledge base containing axioms, deenitions and theorems from a rst-order theory has rarely been approached, because of its inherent complexity. However, mathematicians are able to select and use just the right theorem from an enourmous knowledge base when proving theorems. We demonstrate that a natural, well-motivated and simple ...

This paper provides a methodology aimed at better measuring tacit knowledge in an organisational context. Although codified knowledge and its capture is commonplace, tacit knowledge has up until recent years proved elusive in its inclusion within the organisation's knowledge base. It is hoped that by means of a triangulated methodology utilising psychological, sociological and computational met...

In many domains, users from varying backgrounds (and with varying conceptualisations of the domain) seek advice from an expert and the expert adapts their reasoning and explanation for the background of each user, using stereotypical categories of user (for example physicist or engineer). In earlier papers, the viewpoints mechanism was presented as a means of replicating this behaviour in knowl...

Knowledge excavation is a new information processing technology. Nowadays, knowledge excavation has been widely applied to the university library management. Knowledge excavation in university library knowledge bases has already been playing an important role in improving the management of university libraries and inevitably will play a more profound role in the future. In this paper, the meani...

Information and knowledge are important prerequisites for innovation activity in firms. One important means of acquiring complementary knowledge are innovation networks. Depending on their absorptive capacity and knowledge base, firms develop different abilities to access and utilise external knowledge. These abilities might also be linked to firm size. Although size as such is not a decisive c...

Existing semantic knowledge bases such as WordNet and Yago contain the information of relations between entities. Although they are not domain-specific, they contain limited information and have limitations on the usage scopes and domains. For example, they do not hold the information about the domain-specific commonsense relations between concepts like “horse” and “farm” or “ocean” and “atmosp...