Formal concept analysis for evaluating intrinsic dimension of a natural language

Some results of a computational experiment for determining the intrinsic dimension of linguistic varieties for the Bengali and Russian languages are presented. At the same time, both sets of words and sets of bigrams in these languages were considered separately. The method used to solve this problem was based on formal concept analysis algorithms. It was found that the intrinsic dimensions of these languages are significantly less than the dimensions used in popular neural network models in natural language processing.Comment: Preprint, 10th International Conference on Pattern Recognition and Machine Intelligence (PReMI 2023

Intraoperative Monitoring in Neurosurgery

Coordonator ştiinţific: Andronachi Victor Institutul de Neurologie şi NeurochirurgieIONM is the application of a variety of electrophysiological and vascular monitoring procedures during surgery to allow early warning and avoidance of injury to nervous system structures.This article highlights advances in IOM technologies including the use of motor and somatosensory evoked potentials to assess the integrity of descending corticospinal and ascending somatosensory pathways, electromyography to assess the integrity of cranial nerves or spinal nerve roots, various approaches including brainstem auditory evoked potentials and cochlear nerve action potentials to enhance the safety of vestibular schwannoma surgery. IOM este o metodă de evaluare a înregistrărilor activităţii electrofiziologice a structurilor nervoase şi a modificărilor fluxului sangvin cerebral cu scop de prevenire şi de evitare a afectării acestor structuri pe parcursul intervenţiei chirurgicale. Acest articol reflectă rolul IOM prin determinarea potenţialelor evocate somato-senzoriale şi motorii folosite pentru a aprecia integritatea căilor de conducere ascendente şi descendente ale sistemului nervos, de asemenea electromiografia ca metodă de apreciere a integrităţii nervilor cranieni şi spinali. Înregistrarea potenţialelor evocate auditive sau potenţialele de trunchi cerebral prezintă utilitate prin reducerea riscului de lezare a nervului vestibulocochlear în caz de schwanom vestibular

Convective Term and Transversely Driven Charge-Density Waves

We derive the convective terms in the damping which determine the structure of the moving charge-density wave (CDW), and study the effect of a current flowing transverse to conducting chains on the CDW dynamics along the chains. In contrast to a recent prediction we find that the effect is orders of magnitude smaller, and that contributions from transverse currents of electron- and hole-like quasiparticles to the force exerted on the CDW along the chains act in the opposite directions. We discuss recent experimental verification of the effect and demonstrate experimentally that geometry effects might mimic the transverse current effect.Comment: RevTeX, 9 pages, 1 figure, accepted for publications in PR

Development of hybrid reconstruction techniques for TAIGA

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