The art of spending and recommendations in personal finance

Happiness is one of the most important aspects of human lives, yet the literature on emotional well-being indicates that people often fail to correctly anticipate the hedonic consequences of future events. As a result, individuals end up being not as happy as they thought they would be. This phenomenon also applies to the domain of personal finance where people make bad decisions about purchases. In this paper, we identified a new opportunity for the research on recommender systems in personal finance and through analysis demonstrated that intelligent recommenders can help to minimize errors in affective forecasts and enhance happiness of people in the domain of consumption. Furthermore, we reviewed problems associated with design of such recommenders and proposed approaches to overcome them.This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 655723

A new representation of emotion in affective computing

In the recent years, increasing attention has been paid to the area of affective computing, which deals with the complex phenomenon of human emotion. Therefore, a model for describing, structuring, and categorizing emotional states of users is required. The dimensional emotion theory is one of widely used theoretical foundations for categorization of emotions. According to the dimensional theory, emotional states are projected to the affective space, which has two dimensions: valence and arousal. In order to navigate in the affective space, Cartesian coordinate system is used, where emotion quality is defined by combination of valence and arousal. In this paper, we propose another representation of the affective space with polar coordinate system. The key advantages of such a representation include (1) capability to account not only for emotion quality, but also for emotion intensity, (2) reasonable explanation of the location of neutral emotion in the affective space, and (3) straightforward interpretation of the meaning of an emotional state (quality defined by angle and intensity defined by distance from the origin). Although in our experiment most of the induced motions can be differentiated with polar coordinate system, further investigation is still needed to find out either Cartesian or polar coordinates system represents affective space better in practice

Angular momenta creation in relativistic electron-positron plasma

Creation of angular momentum in a relativistic electron-positron plasma is explored. It is shown that a chain of angular momentum carrying vortices is a robust asymptotic state sustained by the generalized nonlinear Schrodinger equation characteristic to the system. The results may suggest a possible electromagnetic origin of angular momenta when it is applied to the MeV epoch of the early Universe.Comment: 20 pages, 6 figure

Quantum vortices in systems obeying a generalized exclusion principle

The paper deals with a planar particle system obeying a generalized exclusion principle (EP) and governed, in the mean field approximation, by a nonlinear Schroedinger equation. We show that the EP involves a mathematically simple and physically transparent mechanism, which allows the genesis of quantum vortices in the system. We obtain in a closed form the shape of the vortices and investigate its main physical properties. PACS numbers: 03.65.-w, 03.65.Ge, 05.45.YvComment: 7 pages, 4 figure

Vortex solitons - Mass, Energy and Angular momentum bunching in relativistic electron-positron plasmas

It is shown that the interaction of large amplitude electromagnetic waves with a hot electron-positron (e-p) plasma (a principal constituent of the universe in the MeV epoch) leads to a bunching of mass, energy, and angular momentum in stable, long-lived structures. Electromagnetism in the MeV epoch, then, could provide a possible route for seeding the observed large-scale structure of the universe.Comment: 17 pages with 2 figure

Колебания ледников Северного и Южного ледниковых полей Патагонии по данным мониторинга с Международной космической станции

Quantitative indicators of changes in 37 glaciers of the Patagonian Northern and Southern glacial fields were determined by means of decoding and analysis of photographs obtained by astronauts from the Russian segment of the International Space Station. On the basis of this information it was concluded that in 2002–2016 the glaciers of both fields of Patagonia continued to retreat. The frontal parts of the nine glaciers retained their positions, while others reduced at an average rate of several dozen up to 430 m/year. Repeated monitoring of 16 glaciers from this selection and analysis of the data obtained in 2016–2019 confirm this conclusion. The only exception was the O’Higgins Glacier, which did not change position of its frontal part for 12 years and then retreated in 2018–2019 to 1,250 m. In some cases, a gradual decrease in area of the frontal part of the glacier was accompanied by a sharp collapse of the lower zone with the formation of extensive fields of icebergs. The dynamics of the Bruggen Glacier (Pius XI) are not typical for the region under consideration: for many years this glacier has been advancing. This development cannot be explained without detailed field investigation in the area of snow and ice accumulation of the glacier. Perhaps that was due to a snow-drift transport in an extensive area of accumulation that supported the preservation of the size of the glacier tongue, and even its advance. According to our observations, the average rate of retreat of the glaciers of the Western and Eastern slopes of the Southern Ice Field significantly decreased since 2010, i.e. their degradation slowed down. At the same time, glaciers of the Northern Ice Field continued to decrease intensively.В результате анализа фотоснимков с Международной космической станции определены изменения 37 ледников Северного и Южного ледниковых полей Патагонии. В 2002–2016 гг. ледники обоих полей продолжали отступать, но их отступание с 2010 г. замедлилось, хотя некоторые ледники Северного ледникового поля продолжают интенсивно сокращаться. Лишь ледник Брюгген (Пия XI) на Южном ледниковом поле в течение многих лет наступает

Nonlinear canonical quantum system of collectively interacting particles via an exclusion-inclusion principle

Recently [G. Kaniadakis, Phys. Rev. A 55, 941 (1997)], we introduced a Schrödinger equation containing a complex nonlinearity W(ρ,j)+iW(ρ,j) which describes the collective interaction introduced by an exclusion-inclusion principle (EIP). The EIP does not affect W(ρ,j) and determines W(ρ,j) univocally. In the above reference W(ρ,j) was deduced by means of a stochastic quantization approach, in this way obtaining a noncanonical quantum system. In this work we introduce a family of nonlinearities W(ρ,j) generating a family of nonlinear canonical quantum systems, and derive their Lagrangian and the Hamiltonian functions and the evolution equations of the fields. We derive also the Ehrenfest relations and study the soliton properties. The shape of the soliton, propagating in the system obeying the EIP, can be obtained by solving a first-order ordinary differential equation. We show that, in the case of soliton solutions, by means of a unitary transformation, the EIP potential is equivalent to a real algebraic nonlinear potential proportional to κρ2/(1+κρ)