পদ্ধতির তুলনা করুন

	কোহর্ট-কম্পোনেন্ট জনসংখ্যা অভিক্ষেপ	গতিশীলতা ও অভিবাসনের বিকিরণ মডেল
ক্ষেত্র	জনমিতি	স্থানিক বিশ্লেষণ
পরিবার	Process / pipeline	Regression model
উদ্ভবের বছর	2001	2012
প্রবর্তক	Preston, Heuveline & Guillot	Filippo Simini et al.
ধরন	Demographic projection pipeline	Parameter-free spatial interaction model
মৌলিক উৎস	Preston, S. H., Heuveline, P., & Guillot, M. (2001). Demography: Measuring and Modeling Population Processes. Blackwell. ISBN: 978-1-557-86451-2	Simini, F., González, M. C., Maritan, A., & Barabási, A.-L. (2012). A universal model for mobility and migration patterns. Nature, 484, 96–100.
অপর নাম	Cohort-Component Method, Component Method of Population Projection, Age-Sex-Specific Population Projection, Kohort-Bileşen Projeksiyonu	Radiation Law of Human Mobility, Parameter-free Mobility Model, Simini Radiation Model, Radyasyon Modeli
সম্পর্কিত	3	3
সারসংক্ষেপ	Cohort-Component Projection is the standard demographic method for forecasting future population size and age-sex structure by explicitly tracking births, deaths, and migration for each age-sex cohort across discrete time steps. Systematically formalized in the textbook literature by Preston, Heuveline, and Guillot (2001), the method builds on foundational actuarial and demographic work dating to the early twentieth century and remains the workhorse technique used by national statistical offices and international organizations worldwide.	The Radiation Model, introduced by Simini et al. in 2012, is a parameter-free model for predicting human mobility and migration flows between geographic locations. Drawing an analogy from radiation physics, it predicts trip volumes based solely on population sizes at origin and destination, and the intervening population within the circle connecting them. It has been widely applied to commuting flows, migration, and epidemic spreading.