In this paper, we discuss the development of a hybrid multistrategy book recommendation system using Linked Open Data. Our approach builds on training individual base recommenders and using global popularity scores as generic recommenders. The results of the individual recommenders are combined using stacking regression and rank aggregation. We show that this approach delivers very good results...

Although numerous case studies and a body of theoretical work have addressed the open strategy topic (opening the strategy process to wider stakeholders groups) in the literature, approaches to implement open strategic planning has been less studied. In this study, the principles of design science research are employed, and pragmatic presuppositions from Habermas’ theory of discourse and the re...

P. G. Capek S. P. Frank S. Gerdt D. Shields IBM has embraced both the concept and the reality of open-source software (OSS). While this may seem surprising for a corporation with a large traditional software business, a path has been pursued allowing the maintenance—indeed, the enhancement—of existing business while deriving benefits from OSS, making significant contributions to several OSS pro...

The alteration of the age pyramid also leads to changes in the orthopaedic routine. Hence, increasingly more old and very old people (>75.YOA and 91.-100.YOA according to WHO Definition) are being treated with injury patterns that were very rare in this form until now. This could be explained on one hand both by the decreasing osseous stability and the alteration of the soft-tissue condition, a...

If Nonempty has a winning strategy against Empty in the Choquet game on a space, the space is said to be a Choquet space. Such a winning strategy allows Nonempty to consider the entire finite history of previous moves before making each new move; a stationary strategy only permits Nonempty to consider the previous move by Empty. We show that Nonempty has a stationary winning strategy for every ...

Since the advent of evolution strategies many attempts have been done to improve the mutation operator [7]. The first enhancement could be seen in the introduction of a flexible step size. As a logical consequence later n step sizes, one per variable, were used. Highest flexibility is achieved with the correlated mutation but also quadratic growth of the number of strategy parameters [8]. A new...