Opinion Piece

Some neurological patients become colour blind as a result of damage to the brain. Characteristically, the critical area of damage includes a ventromedial region in the occipital lobe. Indeed, modern methods of neuroimaging have demonstrated a locus of activation in this region, now dubbed the ‘colour centre’, when normal observers passively view a coloured scene [1]. It would be natural to ass...

Over the last few years, the network community has started to make heavy use of novel concepts such as self-similarity and Long-Range Dependence (LRD). Despite their wide use, there is still much confusion regarding the identification of such phenomena in real network traffic data. In this paper, we show that estimating Long-Range Dependence is not straightforward: there is no systematic or def...

Empirical evidence shows that in favorable situations semi-supervised learning (SSL) algorithms can capitalize on the abundance of unlabeled training data to improve the performance of a learning task, in the sense that fewer labeled training data are needed to achieve a target error bound. However, in other situations unlabeled data do not seem to help. Recent attempts at theoretically charact...