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Haptic Perception with a Robotic Hand

Abstract in UndeterminedWe have developed an 8 d.o.f. robot hand which has been tested with three computational models of haptic perception. Two of the models are based on the tensor product of different proprioceptive and sensory signals and a self-organizing map (SOM), and one uses a novel self-organizing neural network, the T-MPSOM. The computational models have been trained and tested with a s

Characterising the vulnerability of linear control systems under sensor attacks using a system's security index

We introduce the 'security index' of a discrete-time, linear time-invariant system under sensor attacks as a quantitative representation-free measure on the vulnerability of an observable system. Ideas from linear coding theory are employed in providing conditions for attack detection and correction in terms of a system's security index, along with methods for its computation based on different re

Associating SOM Representations of Haptic Submodalities

We have experimented with a bio-inspired selforganizingtexture and hardness perception system whichautomatically learns to associate the representations of the twosubmodalities with each other. To this end we have developeda microphone based texture sensor and a hardness sensor that measures the compression of the material at a constant pressure. The system is based on a novel variant of the Self-

Power converters for the magnets of the Linac Warm Units of ESS

ESS, the European Spallation Source, will be a major user facility at which researchers from academia and industry will investigate scientific questions using neutron beams. ESS will deliver its protons to a solid, rotating tungsten target, which will in turn generate neutrons. A linear accelerator (Linac) creates protons at the ion source, accelerates them to an appropriate energy and steers them

Channel shortening algorithms for multiple intersymbol interference channels

We consider channel shortening (CS) algorithms for communication systems where multiple single antenna nodes are transmitting single carrier signals to a single antenna receiver over known intersymbol interference channels. We discuss seven methods to shorten the intersymbol interference (ISI) channels, and the parameters are optimized from a generalized mutual information (GMI) perspective. The m

Recognizing Texture and Hardness by Touch

We have experimented with different neural network based architectures for bio-inspired self-organizing texture and hardness perception systems. To this end we have developed a microphone based texture sensor and a hardnesssensor that measures the compression of the material at a constant pressure.We have implemented and successfully tested both monomodal systems for texture and hardness perceptio

Kunskapsunderlag för socialtjänstens delaktighet i kommunala risk- och sårbarhetsanalyser (Sorsa)

I detta kunskapsunderlag presenteras Sorsamodellen. Modellen sätter kommunala risk- och sårbarhetsanalyser i centrum. Sociala risker uppmärksammas särskilt. Sorsamodellen åskådliggörs i form av en processkarta. I den illustreras processer, aktiviteter och rutiner. Den ger också illustrerande exempel hämtade från kommuner.Sorsamodellen tar sin utgångspunkt i att socialtjänstens bedömningar av riske