Electroand magnetoencephalography (EEG/MEG)-based source reconstruction of cerebral activity (the EEG/MEG inverse problem) is an important tool both in clinical practice and research and in cognitive neuroscience. Methods for solving the inverse problem are based on solutions to the corresponding forward problem, i.e., simulation of EEG/MEG fields for a given primary source in the brain with a ...

In this paper we consider a closed queueing system in which N customers circulate between two stations. One station contains customers which are functioning, the other is a single server queue containing failed customers. Each functioning customer can fail, independently of the other customers, and when that happens it arrives at the queue. The repairman or server can repair the broken customer...

Fundamental limits on the source coding exponents (or large deviations performance) of zero-delay finite-memory (ZDFM) lossy source codes are studied. Our main results are the following. For any memoryless source, a suitably designed encoder that time-shares (at most two) memoryless scalar quantizers is as good as any time-varying fixed-rate ZDFM code, in that it can achieve the fastest exponen...

The simulation tool lcpSim can be used to investigate special level crossing problems of queueing systems of type HY POk/HY POr/1//n embedded in different Markovian environments. Our observed system consists of n heterogeneous machines (requests) and a server that ”repairs” the broken machines according to the most commonly used service disciplines. We specify a maximum number of stopped machin...

CLARIN stands for Common Language Resources and Technologies Research Infrastructure and it is one of the 35 infrastructure projects listed in the ESFRI roadmap of European research infrastructures for various areas. CLARIN has now entered its 3 year preparatory phase under a grant from the EU Commission. The preparatory phase of CLARIN has 32 partner organizations, (see www.clarin.eu for more ...

SUMMARY Ambient noise cross-correlations can be used as self-consistent observables, opening novel possibilities for investigating ambient sources. To optimize the forward-modelling of global any given distribution sources in microseismic frequency range up to 0.2 Hz, we implement (i) pre-computed wavefields and (ii) spatially variable grids. This enables rapid inversions based on finite-freque...