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Named entity disambiguation in a question answering system.

In this paper, we describe how we use a named entity disambiguation module to merge entities in a question answering system. The question answering system uses a baseline passage retrieval component that extracts paragraphs from the Swedish version of Wikipedia. The passages are indexed and ranked using the Lucene platform. Prior to the indexing, we carried out a recognition and disambiguation of

Value Relations - Old Wine in New Barrels

In Rabinowicz 2008, taking my departure from Ruth Chang’s notion of parity in value and from Joshua Gert’s attempt to clarify this notion, I considered how value relations can best be analyzed in terms of fitting pro-attitudes. In the formal model I put forward, fitting pro-attitudes are represented by the class of permissible preference orderings on a domain of items that are being compared. As i

Sum rules and physical limitations for passive metamaterials

Bandwidth is an important parameter in many metamaterial applications. It has been shown that Herglotz functions and sum rules offer a powerful methodology to analyze the trade-off between bandwidth and design parameters. Here, this approach is described for the temporal dispersion of constitutive relations and high-impedance surfaces.

Multiple scattering by a collection of randomly located obstacles Part I: Theory - coherent fields

Scattering of electromagnetic waves by discrete, randomly distributed objects is addressed. In general, the non-intersecting scattering objects can be of arbitrary form, material and shape. The main aim of this paper is to calculate the coherent reflection and transmission characteristics of a finite or semi-infinite slab containing discrete, randomly distributed scatterers. Typical applications o