On January 28, 2016 the first meeting of the group was held. The main organizational issues were discussed and the individual tasks of the participants were determined. The scientific component of the meeting was to discuss key articles of foreign demographers on the analysis of sequences:
Billari, Partnership, Childbearing and Parenting: Trends of the 1990s
Billari, Francesco C., The Analysis of Early Life Courses: Complex Descriptions of the Transition to Adulthood
On February 15, 2016 in the framework of the seminar of the group, Mitrofanova E.S. gave a report on the topic "Prospects for analyzing demographic events using the seqence analysis method". The purpose of the meeting was to get acquainted with the key concepts and terms of demography and sociology, which will be necessary for the further joint work of demographers and computer science specialists. Also in detail were described the data sets on which the studies will be performed. The basic concepts of what sequence analysis is, what methods it consists of, and how the demographic data is analyzed with it were also introduced.
On March 4, 2016 the report of Ignatov D.I. on the topic "Fundamentals of Data Mining and Machine Learning" was given. The meeting was devoted to the main tasks of machine learning and data mining, such as classification, clustering, regression, ranking (for example, recommendation systems), searching for frequent sets (goods, attributes) and associative rules. Some methods for solving these problems have been illustrated in the Orange program (version 2.7).
On March 24, 2016, another seminar of the group was held. The seminar was opened by the participant of the group Thomas Espy. He introduced the participants of the group with the basics of working in the statistical program R. He also shared advice and recommendations that simplify the work in the program. Then the head of the group Dmitry Ignatov gave a report on the topic "Machine learning and data development: classification methods." During his presentation, Dmitry not only introduced listeners to various ways of classifying data, but also made out practical examples of their application.
Practical seminar "Sequence Analysis in TraMineR Package of R. Part 1".
On April 28, 2016, in the framework of the seminar of the group, Mitrofanova E.S. gave a report on the topic "Language R, package TraMineR." The purpose of the meeting was to get acquainted with the capabilities of this package. The results obtained in it were also shown.
Discussion of the paper: Gabadinho, A., Ritschard, G., Müller, N.S. & Studer, M. (2011), Analyzing and visualizing state sequences in R with TraMineR, Journal of Statistical Software . Vol. 40(4), pp. 1-37.
Practical seminar "Sequence Analysis in TraMineR Package of R. Part 2".
On June 2, 2016 in the framework of the seminar Mitrofanova E.S. held a workshop on the topic "A sequence analysis in the TraMineR package of the R program."
Practical work in the TraMineR package with the use of the instruction of the creators of this package:
Gabadinho et al_2011_Analyzing and visua..te sequences in R with TraMineR.pdf
On August 17, 2016, another seminar of the group was held. The results of the work of the participants of the group Mitrofanova E.S. and Artamonova A.V. on the study "Studying Family Formation Trajectories' Deinstitutionalization in Russia Using Sequence Analysis", dedicated to the de-institutionalization of matrimonial and reproductive biographies of Russians were presented.
The researchers found that:
- women begin matrimonial biographies before men,
- women are left alone with their children more often than men,
- the number of families forming events in the biographies of men and women is the same,
- de-institutionalization of matrimonial and reproductive biographies begins to be traced for cohorts of Russians born after 1970,
- the number of families forming events in biographies of men and women is invariable for different cohorts.
These results have become one more evidence of the onset of the Second demographic transition in our country.
Studying family formation trajectories deinstitutionalization in russia.pdf
On August 30, 2016 another seminar of the group was held. The strategy for the completion of the first year of the research project was discussed. Also, conferences and journals for possible publications were selected. Discussion of methods of sequence analysis in data mining was held.
On October 5, 2016, another seminar of the group was held.
Head of the group Ignatov Dmitry, held a discussion of current issues from the students of the group on work algorithms and approaches to analysis. Organizational issues concerning the report on the project and the preparation of the session for the HSE April conference were also discussed in detail.
Discussion of scientific works:
draft article of Gizdatullin D. "Search for patterns in individual demographic trajectories"
draft article of Muratova A. "Decision trees for classification of demographic sequences"
On November 15, 2016, another seminar of the group was held.
Reports of members of the group were given:
Muratova A.A. "Sequence similarity measures",
Gizdatullin D.K. "Classification based on frequent emerging sequences and pattern structures".
On December 27, 2016, another seminar of the group was held.
Presentations were made by the participants of the group:
P.E. Sushko and T.H. Espi "Migratory biographies of Russians: basic patterns and characteristics";
E.S. Mitrofanova "Analysis of the transition to adulthood: the sequence of occurrence of the start of demographic and socio-economic events in the life of the Russians";
E.S. Mitrofanova, A.V. Artamonova "Path of life of Russian men who served and not served in the army."
Also at the meeting the invited expert on work with missed data Sergey Ruzinov, PhD student of NCCR LIVES (Switzerland) gave a presentation. https://www.lives-nccr.ch/en
On February 27, 2017, another seminar of the group was held. Work plans for 2017 and the upcoming section on analyzing demographic sequences within the framework of the April conference of the Higher School of Economics were discussed.
The paper drafts and the reports of the group participants were discussed:
P.E. Sushko and others. Analysis of socio-demographic features of migratory biographies of Russians.
E. S. Mitrofanova, A. V. Artamonova. Factors of Russians choosing a matrimonial union.
On March 21, 2017 another meeting of the group was held, at which E.S. Mitrofanova made presentation of the report "Preparing biographies to analyze the occurrence of the event sequences". The presentation was devoted to key problems in gluing, cleaning and reconciling variables such as the time of life. The group discussed practical cases on the data and a number of methodological solutions were proposed.
On May 25, 2017, the group met together with the invited specialist from Barcelona Jaume Baixeries. At the meeting the main results of the group's work were discussed.
Jaume Baixeries suggested options for further sequence analysis using data analysis methods:
- functional dependencies (see paper)
- pattern structures (based on the author's paper)
- development of trajectories (based on the author's paper in Nature)
On June 22, 2017 another meeting of the group was held. Participants of the group presented the results of their work.
Sequence analysis of the migration biographies of russians.pdf
On August 31, 2017 the meeting of the group was held, during which the results of the group's work for the summer were summed up, the successes in writing the articles by the participants of the group were estimated, participation in various conferences was planned for the new academic year, and a plan of meetings for the next six months of the work of the group was drawn up.
Draft article by A. Muratova at EEML 2017. Black-Box Classification Techniques for Demographic Sequences.pdf
Pattern mining in personal demographic trajectories.pdf
On September 7, 2017, a meeting of the group was held in conjunction with the team of the group "Interactive Chronograms in Demography", which plans to begin work in January 2018 subject to receiving a grant.
During the meeting, the results of the two-year work of the existing group were discussed, such as the construction of decision trees, the classification of demographic sequences, the search for frequent and emergent sequences, similarities on sequences, and the use of pattern structures. There was also a discussion on possible areas for the development of further sequencing studies with a focus on data visualization.
Preliminary discussion of A.Muratova report on EEML 2017: Classification techniques for demographic sequences.pdf
On October 10, 2017 a meeting of the group was held, dedicated to the specifics of the marriage and partnership behavior of the population of Russia and European countries. The participant of the group, Alena Artamonova, based on the data of the "Generations and Gender" study, conducted a comparative analysis of the key patterns of matrimonial behavior and revealed similar trends and major differences in the listed countries. The presentation was based on her published work "Matrimonial behavior of Russians and other Europeans".
On November 17, 2017 a meeting of the group, devoted to the analysis of migration trajectories of Russians was held. At the meeting the main results of the work of Pavel Sushko, Ekaterina Mitrofanova and Alena Artamonova, published in the article "Models of migratory biographies of Russians: new interpretational schemes", as well as the preprint "A Life-Course Study on the Migration Biographies of Russians" prepared by Thomas Espy and Ekaterina Mitrofanova were discussed.
Sequence analysis of the migration biographies of russians.pdf
On December 14, 2017 the final meeting of the group was held, devoted to summarizing the work of the group for two years. At the meeting new work of the group members was discussed: D. Gizdatullin, J. Bashier, D.I. Ignatov, E.S. Mitrofanova, A. Muratova, T. Espi "Learning Prefix-Based Patterns from Demographic Sequences" T. Espi, E.S. Mitrofanova "A Life-Course Study on the Migration Biographies of Russians".
Learning Prefix-Based Patterns from Demographic Sequences.pdf
A Life-Course Study on the Migration Biographies of Russians.pdf
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