Method of detection similar elements in textures with irregular structure

We consider the problem of repetitive elements recognition with heterogeneous image texture. The complexity of solving problems from this class is connected to obtaining precise solution that is sensitive to image with irregular texture. The accuracy depends on correctness of original element selection from which the searching process will start. To solve the problem we propose new synthetic approach that combines statistical methods and machine learning method that allows obtaining resistant and accurate solution. The results of this algorithm are used for detection of reptile skin structure

A fast approximation of the Voronoi diagram for a set of pairwise disjoint arcs

We propose a method for fast approximation of the Voronoi diagram for a set of pairwise disjoint arcs on a plane. The arcs are represented by parameterized curves. A set of input curves is discretized into partition set, for which the Voronoi diagram is constructed. After merging corresponding Voronoi cells and removing redundant edges, the Voronoi graph is approximated by Bezier curves. We also propose the elaboration and optimization of the approximation. The total complexity of the algorithm is ONlogN in the worst-case

Application of concatenable queue for parallel computational geometry algorithms

This paper is devoted to the development of an algorithmic model that solves a set of interrelated computational geometry problems efficiently. To do this, an algorithmic environment with a unified data structure is created, which allows to implement complex use cases efficiently with respect to required computational resources. We build the environment based on the “divide and conquer” strategy. Once a convex hull is a key to a set of computational geometry problems, we offer a concatenable queue data structure to maintain it. The data structure is in the form of a modified balanced binary tree. This allows us to perform operations needed in algorithms for a set of problems in O(log2 n) time. Furthermore we offer a way to execute the algorithms both sequentially and in parallel. In the future the algorithmic environment can be improved to support other computational models with similar properties for solving problems. As an example, the Voronoi diagram or the Delaunay triangulation can be considered

Evaluation of Primary School Mathematic Education: Applied Research Results

This paper discusses Ukrainian primary school students’ learning outcomes in Mathematics, obtained from a study. The researchers’ hypothesis is that the use of the methodological approaches providing meaningful mathematical activities for students, even in the initial stages promoted in the New Ukrainian School Reform (the NUS Reform) facilitates progress. The conclusions presented are based on the first cycle of the National Monitoring Study of the Quality of Primary Education. The authors believe that students’ low performance in the External Independent Evaluation (EIE) in Mathematics at the final stage of compulsory secondary education partly results from ineffective primary education. The results also reveal an extensive gap between rural and urban students as well as small and large class sizes. The authors consider MSQPE results as base-line, allowing for tracking the differences in the students’ performance while implementing the NUS Reform. Mathematical skills emphasized by experts also among the main parts of the computer programmer skills. And therefore should be seen as an important basis for the application and development of other contemporary and expected competences. The introduction and wider implementation of innovative methods including microlearning, in teaching and learning pf mathematics as one of the core in programming skills, are highly recommended

ФІНАНСОВО-МАРКЕТИНГОВИЙ ІННОВАЦІЙНИЙ МЕНЕДЖМЕНТ ЕКОЛОГІЧНОГО АГРОПІДПРИЄМНИЦТВА

Поточна діяльність агропідприємств відзначається нестабільністю, яка викликана мінливим зовнішнім середовищем та численними викликами. Низька адаптивність агропідприємств не дозволяє їм вчасно реагувати на зазначені виклики, що призводить до негативного тренду розвитку агросектора загалом. У більшості підприємств відсутня ефективна стратегія розвитку фінансово-маркетингового інноваційного менеджменту, яка до того ж не відповідає політиці ресурсозбереження та екологічності виробництва. У такому випадку існує потреба глибинного дослідження концепції фінансово-маркетингового інноваційного менеджменту екологічного агропідприємництва. У статті запропоновано інноваційні напрями оцінювання ефективності фінансово-маркетингового інноваційного менеджменту екологічного агропідприємництва та моделювання прогнозу такого менеджменту. За допомогою  використання методики аналізу лонгітюдних даних із граничними та випадковими ефектами, оптимізаційного й статистичного моделювання визначено динаміку фінансово-маркетингового інноваційного менеджменту. Для оптимізації посівних площ і моделювання менеджменту екологічного агропідприємництва використана статистична інформація п’яти аграрних підприємств Полтавського району, які мають приблизно однакові обсяги виробництва, схожі площі для посіву культур. Також ці підприємства є екологічно орієнтованими та вирощують екологічно безпечну продукцію. Результати моделювання дозволили визначити індивідуальні ефекти фінансово-маркетингового та виробничого інноваційного менеджменту. Запропонована методика визначення фінансово-маркетингового інноваційного менеджменту екологічного агропідприємництва є простою для практичного використання зацікавленими стейкхолдерами ринку, які опікуються вчасним проведенням оцінювання поточної діяльності сільськогосподарського підприємства та прогнозу перспектив його розвитку

Seed orchards in Ukraine: past, present and prospects for the future

The seed orchards (SO) serve possibilities to collect seeds from the selected genotypes or to create artificial population throughout the controlled crossing of the target genotypes. Therefore, the seed material obtained from the clonal and seedling seed orchards offers unique opportunity to improve the genetic value of seeds. Thus, the seed orchards are considered as an important part of the forest seed base being the key object for both modern forestry and forestry research. This paper outlines the forest breeding activities associated with the seed production in the seed orchards in Ukraine over the last 70 years. During this period, the different aspects related to the establishment and management of the seed orchard were studied. In these processes, many failures had occurred, their causes and consequences were described. These main breeding activities were reported considering plain and mountain regions of Ukraine as well as specific aspects of the reproduction of the main forest tree species. As of 2019, the total area of the clonal seed orchards (CSO) reached 1040.3 ha, while seedling seed orchards (SSO) only 273.7 ha. The results of research on the growth, reproductive development, the morphology of the plus trees clones in the SO were generalized. The article on the current problems and challenges for Ukrainian forestry mainly related to forest tree breeding and there was also focus on forest seed industry. For the main forest trees species (Scots pine, English oak and other), targeted breeding programs should be developed. It is relevant to create the genetic bank of the forest seeds

Seed orchards in Ukraine: past, present and prospects for the future

The seed orchards (SO) serve possibilities to collect seeds from the selected genotypes or to create artificial population throughout the controlled crossing of the target genotypes. Therefore, the seed material obtained from the clonal and seedling seed orchards offers unique opportunity to improve the genetic value of seeds. Thus, the seed orchards are considered as an important part of the forest seed base being the key object for both modern forestry and forestry research. This paper outlines the forest breeding activities associated with the seed production in the seed orchards in Ukraine over the last 70 years. During this period, the different aspects related to the establishment and management of the seed orchard were studied. In these processes, many failures had occurred, their causes and consequences were described. These main breeding activities were reported considering plain and mountain regions of Ukraine as well as specific aspects of the reproduction of the main forest tree species. As of 2019, the total area of the clonal seed orchards (CSO) reached 1040.3 ha, while seedling seed orchards (SSO) only 273.7 ha. The results of research on the growth, reproductive development, the morphology of the plus trees clones in the SO were generalized. The article on the current problems and challenges for Ukrainian forestry mainly related to forest tree breeding and there was also focus on forest seed industry. For the main forest trees species (Scots pine, English oak and other), targeted breeding programs should be developed. It is relevant to create the genetic bank of the forest seeds