This work presents the systems explored as part of the CLPsych 2019 Shared Task. More specifically, this work explores the promise of deep learning systems for suicide risk assessment.
У статті визначено переваги та недоліки застосування концесії на залізничному транспорті в Україні. Серед переваг застосування концесії на залізничному транспорті автори виділяють: залучення приват ного капіталу без втрати стратегічного контролю над життєво важливими публічними системами та об'єк тами; залучення позабюджетних коштів для будівництва, реконструкції та експлуатації дорогих інфра структурних об'єктів, а також прискорений розвиток групи об'єктів інфраструктури за відсутності до статнього обсягу бюджетних коштів; розподіл ризиків з розвитку окремих об'єктів публічної інфра структури з приватним партнером. До недоліків можна віднести: відсутність досвіду і професійних навичок у органів влади щодо укла дення концесійних договорів і управління концесіями, недосконалість вітчизняного правового поля слаб кий контроль регулюючих органів. Проведено оглядовий аналіз запровадження концесії на залізницях у різних країнах світу. Визначе но, що ефективність інвестиційних проєктів залізничного транспорту, які реалізуються на засадах ДПП залежить від якості управління. Виявлено, що перспективним напрямом залучення інвестицій у залізничну галузь є концесія вокзалів, що дозволить підвищити рівень сервісу пасажирів згідно із Європейськими стандартами. At present the railway transport activity is declined, because there are not enough investments for its activity. But the oligarchs and sponsors of our country accumulated lot of money that can be invested in the development of passenger transportations. They do not wish to invest in old technologies that do not allow them to profit, but they will be pleased to invest in new activities-high speed traffic, tourist traffic and other activities.
When forming the risk portion of an investment portfolio, one may include into it both stocks of individual companies representing different sectors of the economy in different regions, and derivative financial instruments, such as futures on stock indices. The latter are an excellent instrument for investing in a country's stock, eliminating the necessity for the investor to solve the non-trivial problem of determining the optimal set of attractive assets, because, as a rule, the stock index includes the most successful companies in most industries. If one only decides to include stock indices in the portfolio on the basis of their current price, it can be assumed that in the moment one should invest in assets that have not gone up at all or enough, yet. However, this estimate is not objective, as indices have different volatility, and therefore, it is incorrect to compare the absolute size of the drawdown in crisis time, and those of the growth rate in the post-crisis period, if one wants to determine overvalued and undervalued assets. Obviously, when making the final decision on whether to include stock indices in the portfolio, it is also necessary to rely on the results of a fundamental analysis of these assets. So, the articles aims at determining the structure of the risk portion of the investment portfolio by identifying instruments that are underestimated in terms of their fundamental characteristics. To achieve the aim of the study, the following main tasks were solved: the initial set of exogenous factors influencing the dynamics of stock indices was determined; the parameters of the models of stock indices dependence on the factors influencing them are assessed, the corresponding projected values are calculated; a set of instruments is determined for including stock indices in the investment portfolio by comparing their real and model values. The models created make it possible to determine the optimal structure of an investment portfolio, which would include stock indices futures for such countries as Taiwan, Mexico, Brazil, Great Britain, Germany and the USA.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.