Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange


A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

× 2490
Indicates a request for relevant open data sources. Please read for writing a good request.
× 565
Geospatial pertains to the geographic location and characteristics of natural or constructed features and boundaries on, above, or below the Earth's surface, particularly referring to data that is geo…
× 442
For questions related to the United States of America or regions within it.
× 244
For questions related to application programming interfaces. Use 'api-request' instead if you're looking for an API that provides specific open data.
× 207
For questions related to, the home of the U.S. Government’s open data.
× 188
Algorithmic learning from data. A form of Pattern Recognition.
× 185
Questions and answers surrounding the U.S. Food and Drug Administration's OpenFDA program.
× 166
For questions about government-related datasets. If relevant, please also specify the country in a separate tag.
× 137
Healthcare, the body, medicine, medical research, pharmacology, anatomy, etc
× 135
For questions about health data, like data about hospitals, obstetrics, physical and mental impairments.
× 133
Uses of Open Data consists of ways and methods to utilize Open Data in attempts to achieve its maximum benefits
× 126
The [MIMIC-III (Medical Information Mart for Intensive Care) database]( contains physiologic signals, vital signs time series, and comprehensive clinical data …
× 123
For questions related to weather and climatic data trends and anomalies, storms, wind patterns, tornadoes, and other short-term meteorological events.
× 117
a subfield of artificial intelligence and machine learning that involves transforming or extracting useful information from natural language data.
× 116
Indicates a request for application programming interfaces (APIs) that provide relevant open data.
× 114
For questions related to making data available for others to use.
× 112
Finance – addresses the ways in which individuals and organizations raise and allocate monetary resources over time, taking into account the risks entailed in their projects.
× 107
The U.S. Census Bureau's mission "is to serve as the leading source of quality data about the nation's people and economy." Use this tag for data collected and/or published by the US Census Bureau.
× 98
a visual artifiact/reproduction that depicts/records visual perception of subject(s), providing a depection of it.
× 98
For questions about historical data.
× 94
the movement of people, animals and goods from one location to another.
× 93
For questions related to research.
× 90
short for the United Kingdom, which itself is short for the United Kingdom of Great Britain and Northern Ireland; also called Britain
× 89
For questions related to human language. Use 'programming' instead for questions related to programming languages.
× 86
a social science concerned with the factors that determine the production, distribution, and consumption of goods and services.
× 85
For questions related to cities and similar municipal levels of government.
× 85
a project of the Wikimedia foundation related to open data
× 80
For questions about data related to schools, universities, students, teaching.
× 79
Competitive physical activity, for instance competition or tournament results, practice statistics, athletic performance and non-medical physical performance attributes, statistics or data.
× 73
Questions related to the US goverment 'College Scorecard', a tool to compare cost and value of higher education institutions.
× 71
Indicates a request for tools to create or manage open data.
× 71
data/information that provides data/information about other data. Metadata is essentially documentation of data.
× 66
the act of granting (or not granting) authoritative permission or license to others.
× 66
A comprehensive count of the population.
× 65
Quantifiable information that concerns the age, sex, cultural makeup, or other characteristics of a group or population. Can also include demographic change, the predicted quantitative makeup of a pop…
× 64
For questions related to Europe and the European Union.