An efficient way to reduce the dynamic power dissipation in the turbo decoder is presented. This technique is based on a dynamic re-encoding of the received messages. The idea is to decrease the state transition activity of the trellis-based algorithms by replacing the classical direct decoding of the random noisy codewords by an equivalent decoding of an almost “all zero” codewords in order to...

In this paper we propose a real-time rendering approach for procedural cities. Our first contribution is a new lightweight grammar representation that compactly encodes facade structures and allows fast per-pixel access. We call this grammar F-shade. Our second contribution is a prototype rendering system that renders an urban model from the compact representation directly on the GPU. Our sugge...

We prove that a torsion-free sheaf F \mathcal {F} ...

We present a direct universal P system based on splicing. Our approach diiers from those shown in previous papers as the P system we construct takes as input an encoding of another P system. Previous results were based on the simulation of universal type-0 grammars or Turing machines. We think that the approach we use can be applied to other variants of P systems.

A correspondence functor is a from the category of finite sets and correspondences to k k -modules, where commutative ring. ...

In this paper, we study a problem posed by Furstenberg on intersections between × 2 , 3 \times 2, \ti...

Depth video coding is a new technique that permits lower storage and transmission bandwidth compared with multi-view video coding (MVC). Therefore, fast depth video coding is necessary to reduce the computation complexity of the encoder for realizing the practical use. This paper proposed a fast encoding algorithm for depth video coding based on early termination scheme using texture and depth ...

Mathematics requires thinking but also pattern recognition. Recent research indicates that perceptual learning (PL) interventions facilitate discovery of structure and recognition of patterns in mathematical domains, as assessed by tests of mathematical competence. Here we sought direct evidence that a brief perceptual learning module (PLM) produces changes in basic information extraction. Accu...