Trend 1991 - 2050. United States Census Bureau. Components of Population Change - International: Total Population | Country: Canada | Age Group: All Ages, 1991-2050. Data-Planet™ Statistical Ready Reference by Conquest Systems, Inc. Dataset-ID: 001-036-001.
Notice bibliographique
Résumé
United States Census Bureau (2016). Components of Population Change - International: Total Population | Country: Canada | Age Group: All Ages, 1991-2050. Data-Planet™ Statistical Ready Reference by Conquest Systems, Inc. [Data-file]. Dataset-ID: 001-036-001. Dataset: Presents population estimates and projections in total and by 5-year age groups by nation. This dataset, part of the United States Census Bureau’s International Database, shows population size and projections, components of change, and rates of growth and natural increase, for over 200 countries and world regions with a population of over 5,000 and that are recognized by the US State Department. The demographic components of population change presented include births, deaths, and net migration. Data are reported from 1950 and projected to 2050. Census Bureau demographers analyze data from censuses, surveys, vital statistics, and administrative records provided by national statistics offices, as well as data on international migration and refugee movements. The process involves data collection, evaluation, and analysis to develop a set of consistent estimates and projections of population, fertility, mortality, and international migration. The projections are generated using the Census Bureau's Rural/Urban Projection(RUP) software program, which projects population, by single years of age, for each calendar year beyond a base year. This approach means the Census Bureau fertility and mortality estimates pertain to specific years and thus year-specific estimates of fertility, mortality, and migration reflect the impact of natural disasters, civil conflicts, and changes in the health climate in a countryThe use of the RUP progam applies to all nations except the United States. US population projections and estimates are developed using US decennial census counts and vital statistics and other data on international migration. The base population for each nation is derived from census, administrative, and/or vital registration data. Where reliable official records are available, a stable population is generated. The United States Census Bureau applies a variety of demographic statistical approaches to detect and correct for the errors typical of census enumerations. Details on these methods are available in the technical documentation: US Census Bureau, “International Database Projections and Estimates Methodology,” issued June 2010. Accessed December 21, 2011, http://www.census.gov/population/international/data/idb/estandproj.pdf . Category: Population and Income, International Relations and Trade Source: United States Census Bureau The US Census Bureau is a bureau of the US Department of Commerce. The major functions of the Census Bureau are authorized by Article 2, Section 2 of the United States Constitution, which provides that a census of population shall be taken every 10 years, and by Title 13 and Title 26 of the United States Code of Federal Regulations. The Census Bureau is responsible for numerous statistical programs, including census and surveys of households, governments, manufacturing and industries, and for US foreign trade statistics. The first US census was conducted in 1790 for the purposes of apportioning state representation in the US House of Representatives and for the apportionment of taxes. http://www.census.gov Subject: Population Change, Population Growth, Population Size
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,002 | 0,011 |
| Méta-épidémiologie (sens strict) | 0,002 | 0,001 |
| Méta-épidémiologie (sens large) | 0,002 | 0,002 |
| Bibliométrie | 0,005 | 0,022 |
| Études des sciences et des technologies | 0,002 | 0,000 |
| Communication savante | 0,003 | 0,002 |
| Science ouverte | 0,004 | 0,002 |
| Intégrité de la recherche | 0,001 | 0,004 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,064 | 0,046 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».