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New trellis constructions for compression of short data sequences are presented. Traditional low rate trellis source coding suffers from having a too small a reproduction alphabet. Governed by alphabet-constrained rate-distortion theory we propose a simple method which for a source coding rate of 1 bit per sample allows 2n reconstruction values for a trellis with 2n states. The proposed method is

On the early history of card-playing with particular reference to John of Rheinfelden's treatise

Neural networks with internal feedback from the hidden nodes to theinput [Elman, 1990 are developed for prediction of the auroralelectrojet index AE from solar wind data. Unlike linear and nonlinearautoregressive moving-average (ARMA) models, such networks are free todevelop their own internal representation of the recurrent statevariables. Further, they do not incorporate an explicit memory for p

In this paper we investigate some properties of the union bound for a basic MIMO system, assuming uncoded QAM transmission, uncorrelated Rayleigh fading, and maximum likelihood detection. The presented union bound results cover several choices of the number of transmitting and receiving antennas (up to 16). It is also illustrated how the pair-wise error probability approaches the Q( )-function as

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Popular Abstract in Swedish Hur man studerar kommunikation hos tallsteklar Totalt finns det cirka 125 beskrivna tallstekelarter i världen. De tillhör gruppen växtsteklar, och deras larver lever vanligen av tallbarr. Larvernas härjningar kan medföra att träden växer sämre eller rent av dör. Den färdiga stekeln äter inget, utan är helt inriktad på att para sig under sitt 10 –15 dagar korta liv i skPine sawflies (Hymenoptera: Diprionidae) are severe pine defoliators. This thesis investigated sawfly behaviour related to the use of pheromones in integrated pest management, including monitoring with pheromone traps and mating disruption. Neodiprion sertiferr females were placed on pine twigs in the field and 11–30 % of the females that remained on their twig after the first mating re-mated. Onl

Conflicts often lead to expression of emotion to unrelated parties. We study non-instrumental emotion expression in binary ultimatum games, where receivers can express emotion either privately or to a third-party audience prior to accepting or rejecting the offer. The possibility of emotion expression to an audience increases welfare, but this is driven by senders behaving more fairly rather than

Background: To assess balance in single-limb stance, center of pressure movements can be registered by stabilometry with force platforms. This can be used for evaluation of injuries to the lower extremities. It is important to ensure that the assessment tools we use in the clinical setting and in research have minimal measurement error. Previous studies have shown that the ability to maintain stan