Generating new concepts is an intriguing yet understudied topic in cognitive science. In this paper, we present a novel exemplar model of category generation: PACKER (Producing Alike and Contrasting Knowledge using Exemplar Representations). PACKER’s core design assumptions are (1) categories are represented as exemplars in a multidimensional psychological space, (2) generated items should be s...

PACKER is an algorithm for switchbox routing, based on a novel approach. In an initial phase, the connectivity of each net is established without taking the other nets into account. In general this will give rise to conflicts (short circuits). In the second stage the conflicts are removed iteratively using connectivity p e e ing local tmnsformations. They ”reshape” a net by displacing one of it...

An analytical model is developed to explain the increasing tendency of pork packers to produce their own hogs, based on Grossman and Hart’s property rights theory of the firm. Packer upstream integration is linked to the need to align packer-producer investment incentives in an environment marked by increasing hog buyer consolidation, changing consumer demands, moves toward traceability in the ...

A 25-year–old black male was found dead alongside the railway lines close to Thessaloniki rail station. According to the police report the deceased had jumped off a moving train. Autopsy was performed eight hours after the incident. Fifty five (55) identical oval shaped “egg” packages were found in the large bowel and one of them was ruptured. The total weight of the powder was 800 g. Toxicolog...