Vladyslav Alieksieiev

Lviv Polytechnic National University · Department of Applied Mathematics

p> Theoretical background : The focus of this article is to study and compare the indicators that are implemented to evaluate the quality of the educational activities of universities in Poland, Germany and Ukraine. The investigation is exercised, in particular, by the proposed indicator of comparing the annual students’ costs during their studies...

The information gathered within most databases is dedicated to have some interconnections. Part of these connections is described explicitly, like references or foreign keys in relational database model. Others remain implicit and should be discovered by a deeper analysis of relations in data. These hidden relations give a more complex and complete...

While many modern industries are tending to use UFV (unmanned flying vehicles) in a near future, there are also many problems of yet unknown procedures to make possible the usage of such UFV. In a current age of aviation development there is an approach of FRA (free routing area) utilization to support growing congestion of many flying vehicles in...

The research objective of the article is substantiation of methodological and applied recommendations for improving the system of financing the sustainable development projects in Ukraine in view of Sustainable Development Strategy realization. The study object is financing the family firms in framework of reforming the Ukrainian legislation aimed...

The good known problems and solutions nowadays require to implement some new approaches due to changing circumstances. The primary factor of these changes is a drastic growth of data volume and transition from simple data processing models and algorithms to big data ones. According to a limited computing resources (memory, CPU load, time boundaries...

Unlike traditional databases, Big Data stored as NoSQL data resources. Therefore such resources are not ready for efficient use in its original form in most cases. It is due to the availability of various kinds of data anomalies. Most of these anomalies are such as data duplication, ambiguity, inaccuracy, contradiction , absence, the incompleteness...

Airspace is now one of the most frequently mentioned environments when discussing technologies of autonomous or unmanned vehicles or machines. There is a number of technologies developed to support unmanned flying vehicles (UFV) and so called air drones. The actual influence of such kind of machines on transport industry is crucial. It is also obvi...

Air routing has become an important problem of recent years. Wide implementation of idea to use a free routing airspace (FRA) over the Europe and idea of exploiting FRA as a main airspace management resource to reduce air traffic problems revealed a necessity of a new look to a routing problem. Many previous solutions relied on predefined topology...

Once the steganography was invented, it still remains one of the most effective ways to hide information in publicly accessed data sources. Many applications of different steganography techniques were known since WWII, but there are no yet any good approach to detect whether there is a hidden message in some data source (image etc.) while it is not...

Подано спектральний розклад для несамоспряженої моделі Фрідріхса і наведено узагальнення відомої у самоспряженому випадку функції Вейля на несамоспряжений випадок. Встановлено, що для несамоспряженої моделі Фрідріхса довільний елемент простору можна подати як лінійну комбінацію власних елементів оператора, що відповідають точкам спектра. Побудовано...

Different solutions and tools for speech recognition are now available. Nevertheless, implementation of natural language processing still remains a current problem. Developing any custom software with a good style of UI/UX requires the integration of speech recognition. Evidently, the most common solution is to use some engine as an embedded standa...

Due to intentions of Ukrainian economy to join European Union there are many threats and opportunities on the way. Ukraine has a number of industries producing goods, products and services needed in Europe. The growth of economic ties with EU makes Ukrainian manufactures stronger and has become a question of key importance during last decade. Meant...

Many contemporary IoT systems do produce a large scale of data. While a new portions of data come to data storage (database etc.) all the previously stored data become obsolete. Most of such obsolete data become excessive and can be needed only to see general trends or anomalies. This research offers an algorithm of data aggregation to minimize the...

Fast growing market of IoT devices revealed a number of complex problems. Among these problems, there is a problem of data losses caused by data package losses or delays while its transition from sensor to server. As anticipated, there are a number of businesses relying on easy opportunity to build real-time monitoring systems using modern software...