Institute Of Informatics Research Articles

BIOMATH 2018 International Conference and School for Young Scientists

The conference was an international event that attracted participants from 25 countries. The conference took place at the Institute of Mechanics of the Bulgarian Academy of Sciences. It also obtained administrative and logistical support from the Institute of Mathematics and Informatics. As is the tradition, the BIOMATH conference series places a strong emphasis on the support and promotion of young scientists and this meeting followed this tradition. This was made possible by additional support from Biomath Forum and the South African DST/NRF SARChI Chair in Mathematical Models and Methods in Bioengineering and Biosciences at the University of Pretoria.

Using network properties to analyze users' role in Twitter in time of crisis

1 Using network properties to analyze users’ role in Twitter in time of crisis Remy Cazabet Nargis Pervin Fujio Toriumi Hideaki Takeda *1 National Institute of Informatics *2 National University of Singapore *3 The University of Tokyo Twitter and online social networks in general are known to be useful alternative sources of information in time of crisis. Using a large dataset of Tweets published in Japan during the period of the earthquake and tsunami of March 2011, we used network analysis to identify the roles of users in the diffusion of information. In a first part, by analyzing retweet chains, we identified 3 categories of users: “idea starters”, “amplifiers” and “transmitters”, all being necessary to the efficient diffusion of information in the network. In a second part, we studied in details how the degree of users in the network affects their capacity to diffuse efficiently information.

Biología en reproducción asistida. Introducción

El autor ha tomado como base de este manuscrito el contenido de la introducción al simposio sobre Fertilidad Asistida publicada en la Revista Peruana de Ginecología y Obstetricia en el año 2012(1). La infertilidad en el Perú y en casi todos los países no es considerada como una enfermedad importante para ser tomada en cuenta como un problema de Salud Pública(2). Según el Instituto Nacional de Estadística e Informática(3), en el Perú debemos ser en el año 2018 alrededor de 32 170 000 de personas. Dentro del crecimiento poblacional, deberían haber 10 292 180 que estuvieran en el rango de 20 a 39 años. Según la Organización Mundial de la Salud, el 15% de ellas, es decir 1 543 827, presentarían problemas de infertilidad.

Preface

Abstract This volume contains selected papers from the Eighth International Workshop on Optimal Codes and Related Topics (OCRT’2017) organized as minisymposium during the conference Mathematical days in Sofia (10-14 July 2017). This workshop was organized by the Institute of Mathematics and Informatics of the Bulgarian Academy of Sciences. There were 37 participants and 26 contributed talks.

INCIDENCE OF PSORIASIS DEPENDING ON THE REGION OF THE RUSSIAN FEDERATION

The article presents the results of a study on assessment the differences of psoriasis incidence in adults in regions of the Russian Federation. The indicators of general and primary incidence of psoriasis were used as the material for a study according to the data from Central Research Institute of Health Organization and Informatics of the Ministry of Public Health of the Russian Federation for the period 2009-2013. The comparative results of psoriasis prevalence among adults population in various regions in Russia were presented. Higher incidence rate was detected in the northern and northeastern regions of the North-Western, Volga, Ural, and Far Eastern regions. The results of classification for the regions of the Russian Federation according to the data of primary and general morbidity were presented. In order to establish the peculiarities of pathology formation and assess the quality of information in the regions of the Russian Federation, a multidimensional classification of the incidence of psoriasis was carried out using the cluster analysis method, using the comparison of prevalence (general morbidity) with primary incidence data for the period 2009-2011. As a result of the cluster analysis, four classes of the country regions are distinguished, the differences between which are statistically significant for all classification characteristics. The average indices of both primary incidence and prevalence of psoriasis are registered in regions of Class 1 (27 subjects of the Russian Federation). The minimum indices of primary and general incidence of psoriasis were noted in class 2 (24 subjects of the Russian Federation), which comprised regions predominantly of the Central, Southern, Siberian FD. The highest rates of primary incidence and prevalence of psoriasis were found in the group of regions that made up Class 4 (14 subjects of the Russian Federation), in a third of the regions of this class - Orel and Sverdlovsk regions, Udmurt Republic, Komi Republic and Sakha (Yakutia), data, unsatisfactory dispensary observation of patients with psoriasis. A certain decrease in the availability of specialized dermatological care can be expected in Class 3 regions, where the primary incidence is low, and the prevalence is above the average (18 subjects of the Russian Federation).

Acupuncture for constipation in patients with stroke: protocol of a systematic review and meta-analysis

IntroductionConstipation is one of the most common complications in patients with stroke. Acupuncture has gained increased popularity for the management of constipation. However, there is a lack of supportive evidence...

Tiếng Việt và tin học, quan niệm, giải pháp và cài đặt

Some research results about the introducing of Vietnamese characters into informatics, realized at the institute of informatics and cybernetics, are presented in this paper. Three levels of research are distingued and given in cetail.

TRYCHOTOMICZNE PODEJŚCIE DO ZARZĄDZANIA KOSZTAMI 2 W ZAKRESIE EKONOMIKI GÓRNICTWA W INSTYTUCIE 3 EKONOMII I INFORMATYKI NA WYDZIALE ORGANZIACJI 4 I ZARZĄDZANIA POLITECHNIKI ŚLĄSKIEJ

TRYCHOTOMICZNE PODEJŚCIE DO ZARZĄDZANIA KOSZTAMI 2 W ZAKRESIE EKONOMIKI GÓRNICTWA W INSTYTUCIE 3 EKONOMII I INFORMATYKI NA WYDZIALE ORGANZIACJI 4 I ZARZĄDZANIA POLITECHNIKI ŚLĄSKIEJ

KIERUNKI I REZULTATY BADAŃ W ZAKRESIE ZARZĄDZANIA 2 KOSZTAMI PRODUKCJI GÓRNICZEJ W INSTYTUCIE EKONOMII 3 I INFORMATYKI NA WYDZIALE ORGANIZACJI I ZARZĄDZANIA 4 POLITECHNIKI ŚLĄSKIEJ

KIERUNKI I REZULTATY BADAŃ W ZAKRESIE ZARZĄDZANIA 2 KOSZTAMI PRODUKCJI GÓRNICZEJ W INSTYTUCIE EKONOMII 3 I INFORMATYKI NA WYDZIALE ORGANIZACJI I ZARZĄDZANIA 4 POLITECHNIKI ŚLĄSKIEJ

The specifics of use PervoLogo software in preschool on example of a group of fiveyear-old children

The article is a description of activities conducted by the Institute of educational Informatics of the Russian Academy of Sciences with the aim of obtaining relevant experience. This article describes how to improve the program PervoLogo for the most fruitful work with children of preschool age and some recommendations for the organization of such classes. PervoLogo program was developed specifically for preschool and primary school age. Experience in the use of PervoLogo in primary classes in Russian schools is widely covered in literature. In contrast, information about the use of the program in preschool education is clearly not enough.

Effects of climate change on agriculture water demand in lower Pak Phanang river basin, southern part of Thailand

The aim of the research is to analyse the effects on agricultural water demand in the Lower Pak Phanang River Basin area due to climate change. The climate data used in the analysis were rainfall, maximum, minimum, and average temperatures. The climate datasets were obtained from statistical downscaling of global circulation model under the CMIP5 project by means of bias correction with Optimizing Quantile Mapping implemented by the Hydro and Agro Informatics Institute. To determine agriculture water demand, reference evapotranspiration (ETo) based on Hargreaves method was calculated for both baseline climate data (1987-2015) and forecasted climate data in 2038. For agriculture water demand in the Pak Phanang river basin, we considered paddy field, palm oil, rubber, grapefruit, orchard, vegetable, ruzy and biennial crop, based on land use data of the Land Development Department of Thailand in 2012. The results showed that forecasted agriculture water demand in 2038 with existing land use data in 2012 will be increased with the average of 18.9% or 61.78 MCM as compared to baseline climate condition. Both water demand and supply management measures would be suitably prepared before facing unexpected situation.

How to footprint, report and remotely secure compromised IoT devices

The number of IoT consumer devices (eg, security cameras, projectors, refrigerators etc) connected to the Internet is constantly increasing. It has been estimated that 3.9 billion IoT consumer devices were in use in 2016 and that by 2020 up to 12.8 billion devices will be deployed.1 This trend, combined with the fact that most of the owners still lack cyber-security awareness, has established a breeding ground for new malware families targeting IoT devices. An example is the Mirai botnet that was responsible for the biggest DDoS attack ever detected in the history of the Internet.2 The size of the Internet of Things (IoT) is rapidly increasing. By 2020 up to 12.8 billion devices will be deployed. This has established a breeding ground for new malware families targeting IoT devices. Filippo Lauria of the Institute of Informatics and Telematics at the Italian National Research Council explains why mapping and classifying compromised IoT nodes is a challenging task. And he proposes a software infrastructure that could be used to remotely footprint, report and (if possible) secure compromised IoT devices.

Programming Basics for Beginners. Experience of the Institute of Informatics at Tallinn University of Technology

The present paper demonstrates the teaching approach in programming basics course for novices: schoolchildren of different ages and schoolteachers. This programming course was developed at the Institute of Informatics at Tallinn University of Technology in Tallinn, Estonia and it based on many years experience in teaching programming for non-IT first year students. The main aim of the chosen teaching approach in the course is to raise the motivation and keep the learners’ interest in programming field on the high level. The idea of developed teaching technique is the implementation of the visual programming before a serious textual coding. Furthermore, authors suggest readers some ways and methods to overcome learners’ difficulties in the first stage in a textual coding.

国立情報学研究所(NII)のディジタル・シルクロード・プロジェクトにおける内陸アジア関係資料のデジタル化とその利用について(研究動向)

国立情報学研究所(NII)のディジタル・シルクロード・プロジェクトにおける内陸アジア関係資料のデジタル化とその利用について(研究動向)

Guest Editorial

Guest Editorial

Zmeny zloženia kompozitného predstihového indikátora Slovenska v čase

Cyclical behavior of the economy can be monitored and predicted with the help of composite leading indicator (CLI) which is an aggregate index of several individual indicators and is statistical relevant for analyzing and forecasting of reference series. This article is focus on construction of CLI for Slovakia and its changes over time. For its construction is used combination of methodologies of OECD and Institute of Informatics and Statistics (Infostat). These methodologies are based on chosen reference series and 124 economic indicators, filtering of time series with Hodrick-Prescott filter (HP filter), normalization of time series, cross correlation and creation of CLI with system of same and different weights. On the base of economic indicator analysis are selected different groups of leading cyclical indicators in seven different time periods. It means that exist changes of CLI composition over time. The best predictable abilities of Slovak business cycle has CLI constructed from time period 2010-2015. On this base was created short-term forecast of Slovak business cycle which supposed economic grow in second and third quarter 2017. Positive GDP growth expectations create space for new investment opportunities as well as government restrictions on public expenditures. The result of our analysis indicate that in the future we can expect new changes in composition of CLI for Slovak economy.

PENGARUH PERSON-ORGANIZATION FIT TERHADAP KOMITMEN ORGANISASIONAL MELALUI KEPUASAAN KERJA PADA KARYAWAN IBI DARMAJAYA

This study aims to examine the influence of person organization fit on organizational commitment with work satisfaction as a mediator variable. The data collected as many as 150 respondents obtained from educative employees Institute of Informatics and Business Darmajaya in the years of 2017. From the data obtained, then performed data analysis using the regression model of mediation through a simple regression analysis and multiple regression method. The results of this study indicate that the person organization fit has a positive and significant effect on organizational commitment. From the results of this study can be reported that the socialization of the organization have a positive and significant impact on the suitability of values. Other findings from this study indicate that conformity values have a positive and significant effect on affective commitment. In addition, the results of this study also indicate that conformity values mediate the effect of organizational socialization on affective commitment.

The First Information Day: Serious Games as Contemporary Tools for New Educational Applications

In technology-enhanced education, the “serious games” method is accepted as a research, pedagogic, and evaluative tool. The method helps instructors to motivate student learning, curiosity, creative and logical thought, as well as develop a variety of skills and competencies. Serious educational games aim to cultivate better comprehension strategies, creative thinking, learning-by-doing (production, authorship), and students’ engagement in their own cognition and learning processes. The first information day will present the scholarly and scholarly-practical outcomes of the Serious Education Games as Contemporary Tools for New Educational Applications project, Contract DSD-2/05.04.2017, between the Bulgarian Academy of Sciences and the Institute of Mathematics and Informatics, activity Introduction of Contemporary Methods in Educating and Fostering Young Talent (PMC No347).

Collaborative triangle for effective community water resource management in Thailand

Water resource management through community collaboration is a crucial way to bring sustainability to water utilization. This study highlighted the key factors affecting community water resource management. The study was based on the Royal Initiated Project in Thailand's southern region. In this research, qualitative analysis was used and a case study was applied as the research strategy. The data were collected from relevant documents, observations, and in-depth interviews with 30 key informants consisting of 5 water resource management experts, 4 academics, 5 community leaders, 10 members of community water resource management committees, and 6 government organization officials. The data were analyzed using content analysis and accuracy checks were made with relevant people until a common conclusion was achieved. Then, synthesis was used to describe the context relationship linkages. The findings showed the importance of geography, lifestyle, sense of ownership, and modes of practices of people in the area as well as the involvement of a network of government agencies (Hydro and Agro Informatics Institute and local government agencies), Thammasat University, and the Ban Kuan community. The government agencies and Thammasat University played a partnership role in supporting the community in terms of transferring knowledge, helping with analysis of existing situations and problems, and giving guidance in problem-solving, supporting management-related issues, and coordinating with water resource management agencies and other government agencies. These interactions can transform the concept of community water resource management into actual practice and create sustainable development for the community. Moreover, the findings illustrated the key factors in community water resource management according to His Majesty the King's initiatives which include management-oriented, community-oriented, social network-oriented, and technology-oriented factors.

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The research has the objective to analyze child labor and school dropout base don information from the National Institute of Statistics and Informatics Perú 2015. It was a retrospective descriptive correlational study, wth data obtained from the National Institute of Statistics and Informatics (INEI), the sample consisted of children between 5 to 9 years of age, making a total of 717 surveyeds , the descriptive data were analyzed in the statistical program SPSS versión 24, and for associations the EViews program was used and the Maxium Likelihood test of the Maxium Likelihood test of the Bivariate Probit model with a p ≤ 0,05 was used. The results showed that the children who carried out work activities were 54,4 % (257) of male sex and 47,6 % (233) of female sex, the majority 84.5% (414) belonged to the rural área and 15,5 % (76) urban área, most reside 58,2% (285) resided in the Sierra región, in ítems of school dropout of the total number of children 95 % (681) reported that they regularly study the school, while 5% (36) stopped attending, a direct relationship was found between child labor and school dropout, with a correlation coefficient (0,2315), between attending school and working with a probability of ocurrence of 20,42 %. It is concluded that child labor is predominant in rural áreas and residents of the mountain región, so there is also a statistical association between child labor and school dropout.