Applications of Bayesian Networks in Official Statistics

Author(s):  
Paola Vicard ◽  
Mauro Scanu
Author(s):  
Federica Cugnata ◽  
Silvia Salini ◽  
Elena Siletti

In this paper, we focus on a Bayesian network s approach to combine traditional survey and social network data and official statistics to evaluate well-being. Bayesian networks permit the use of data with different geographical levels (provincial and regional) and time frequencies (daily, quarterly, and annual). The aim of this study was twofold: to describe the relationship between survey and social network data and to investigate the link between social network data and official statistics. Particularly, we focused on whether the big data anticipate the information provided by the official statistics. The applications, referring to Italy from 2012 to 2017, were performed using ISTAT’s survey data, some variables related to the considered time period or geographical levels, a composite index of well-being obtained by Twitter data, and official statistics that summarize the labor market.


Author(s):  
KHORKINA G.A. ◽  
◽  
BOGDANOVA Yu.N. ◽  

This paper is based on a study consisting of two semantic blocks. In the first block, the existing tools for increasing effective demand in the market of new buildings in Moscow are considered. The most popular tools for increasing effective demand are identified. The second block provides an overview of the characteristics of real and potential buyers of residential real estate in Moscow. Identifying the characteristics of real buyers is based on data published by analytical and consulting companies, as well as real estate developers. Identification of the characteristics of potential buyers was carried out on the basis of official statistics and information published by the Recruitment Agency. The analysis of the characteristics of buyers was carried out in the context of economic activities, in the context of specialization and qualifications, and the level of wages. The areas of employment, specialties are identified, and the level of wages of a person who is potentially more accessible to purchase housing is estimated. The number of people who, in accordance with the size of their salary, can buy housing in the property is estimated. As a result of the work, the expediency of analyzing the buyer’s portrait (including potential one) on a regular basis is justified in order to implement more flexible regulation of the housing sector, taking into account the needs of city residents and the socio-economic situation.


2009 ◽  
Vol 31 (10) ◽  
pp. 1814-1825 ◽  
Author(s):  
Dong LIU ◽  
Chun-Yuan ZHANG ◽  
Wei-Yan XING ◽  
Rui LI

Author(s):  
Nadezhda Gryazeva

В статье изложен обзор современного состояния теории и практики предупреждения мошенничеств, совершаемых осужденными с помощью средств мобильной связи из учреждений уголовно-исполнительной системы России. Исследованы и оценены изменения законодательства, регулирующего рассматриваемую сферу правоотношений, предложения ученых относительно повышения эффективности борьбы с указанным видом мошенничеств, практические материалы. Обозначена проблема, связанная с отсутствием в данных официальной статистики о состоянии преступности в России сведений о количестве мошенничеств, совершаемых осужденными с помощью средств мобильной связи, что бывает необходимо для проведения научных и прикладных исследований, выработки мер по предупреждению и оценки их эффективности в борьбе с анализируемым противоправным деянием. Сформулированы рекомендации, направленные на повышение эффективности предупреждения «телефонных» мошенничеств, совершаемых осужденными в период отбывания наказания в исправительных учреждениях, в частности предложение правового характера, регулирующее сферу индивидуальной профилактики правонарушений, совершаемых осужденными, и предложение в области статистического учета преступлений и отчетности.The article presents an overview of the current state of the theory and practice of fraud prevention committed by convicts using mobile communications from institutions of the criminal Executive system of Russia. The changes in the legislation regulating the sphere of legal relations, the proposals of scientists on improving the effectiveness of combating this type of fraud, practical materials are studied and evaluated. There is a problem related to the lack of information in the official statistics on the state of crime in Russia on the number of frauds committed by convicts by means of mobile communication, which is necessary for scientific and applied research, the development of measures to prevent and assess their effectiveness in combating the illegal act in question. Recommendations have been made to improve the prevention of «telephone» fraud committed by convicted persons while serving their sentences in correctional institutions, in particular a legal proposal regulating the scope of individual prevention of offences committed by convicted persons and a proposal in the field of crime statistics and reporting.


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