相关实验视频
Updated: Jun 9, 2025
12:44
Watershed Planning within a Quantitative Scenario Analysis Framework
Published on: July 24, 2016
8.0K
美国选区边界和全州党派选举结果
Brian Amos1, Steven Gerontakis2, Michael McDonald3
1Wichita State University, Department of Political Science, Wichita, Kansas, 67260, USA.
Scientific data
|October 30, 2024
概括
我们创建并验证了2016年,2018年和2020年大选的美国选区边界和选举结果的数据库. 这些开源数据可以将选举数据与美国人口普查信息相结合,用于研究和重新划分地区.
科学领域:
- 政治科学 政治科学是指政治学.
- 地理信息科学 地理信息科学
- 数据科学数据科学数据科学
背景情况:
- 美国的选举结果在选区级别报告,这是最小的地理单元.
- 访问选区级选举数据对于学术研究和实际应用至关重要.
- 将选举数据与其他地理数据集集集成,如美国人口普查数据,由于缺乏标准化的选区边界信息而受到阻碍.
研究的目的:
- 为2016年,2018年和2020年大选创建和验证美国选区边界的综合数据库.
- 增强这些数据库以选举结果为党派的全州办公室.
- 为研究人员,从业者和公众提供一个开源资源.
主要方法:
- 从州和地方选举官员那里收集了各种格式的选区边界数据 (GIS,图像,文本,口头).
- 使用地理编码的选民登记档案和其他选举数据验证了选区边界.
- 为2016年,2018年和2020年美国大选开发和策划数据库.
主要成果:
- 建立了三个主要选举周期的美国选区边界的经过验证的数据库.
- 整合了党派的全州选举结果,进入了区边界数据库.
- 创建了一个开源数据集,可以很容易地用于地理分析和与其他数据源集成.
结论:
- 开发的开源的选区边界和选举结果数据库是许多用例的宝贵资源.
- 这些数据已被用于备受目的重新区划诉讼,以及包括重新区划当局和媒体在内的各种组织.
- 这些数据的可用性有助于更好地对选举结果进行地理分析,并支持在重新选区和相关领域的知情决策.
相关概念视频
02:49Classifying Matter by State
73.6K
Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars.
73.6K
01:23States of Water
50.6K
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
50.6K
01:20States of Matter
1.2K
Solids, liquids, and gases are the three states of matter commonly found on Earth. A solid is rigid and possesses a definite shape. A liquid flows and takes the shape of its container, except it forms a flat or slightly curved upper surface when acted upon by gravity. Both liquid and solid samples have volumes nearly independent of pressure. A gas takes both the shape and volume of its container.
Scientists have discovered a fourth state of matter, plasma, that occurs naturally in the interiors...
Scientists have discovered a fourth state of matter, plasma, that occurs naturally in the interiors...
1.2K
00:59States of Matter and Phase Changes
927
The internal energy of a substance—the total kinetic energy of all its molecules and the potential energy of their associated forces—depends on the strength of the intermolecular forces in the condensed phases and the pressure exerted on the substance. The internal energy of a substance is the highest in the gaseous state, the lowest in the solid state, and intermediate in the liquid state. Phase transitions are caused by changes in physical conditions, such as temperature and...
927
01:16Stratified Sampling Method
11.7K
Sampling is a technique to select a portion (or subset) of the larger population and study that portion (the sample) to gain information about the population. The sampling method ensures that samples are drawn without bias and accurately represent the population. Because measuring the entire population in a study is not practical, researchers use samples to represent the population of interest.
To choose a stratified sample, divide the population into groups called strata and then take a...
To choose a stratified sample, divide the population into groups called strata and then take a...
11.7K
01:20Sample Proportion and Population Proportion
5.2K
Collecting samples or responses from an entire population takes significant time and effort, so a researcher collects responses from only a sample of that population. Suppose a study needs to collect information about a specific mobile application. After sample collection, the researcher analyzes the data and discovers that most individuals in the sample use that specific mobile application. The sample proportion measures the number of individuals in a sample who either use or don't use the...
5.2K