Barnardisation
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Barnardisation
Barnardisation is a method of statistical disclosure control for tables of counts. It involves adding +1, 0 or -1 to some or all of the internal non-zero cells in a table in a pseudo-random fashion. The probability of adjustment for each internal cell is calculated as p/2 (add 1), 1-p (leave as is), p/2 (subtract 1). The table totals are then calculated as the sum of the post-adjustment internal counts. Etymology The technique of Barnardisation appears to have been named after Professor George Alfred Barnard (1915–2002), a Professor of Mathematics at the University of Essex. Barnard, at that time President of the Royal Statistical Society, was one of three Fellows appointed by the Council of the Royal Statistical Society to help provide a government-commissioned review of data security for the 1971 UK Census. The resulting report questioned whether rounding small numbers to the nearest five was the best approach to preserving respondent confidentiality. The formal government r ...
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George Alfred Barnard
George Alfred Barnard (23 September 1915 – 9 August 2002) was a British statistician known particularly for his work on the foundations of statistics and on quality control. Biography George Barnard was born in Walthamstow, London. His father was a cabinet maker and his mother had been a domestic servant. George's sister Dorothy Wedderburn became a sociologist and eventually Principal of Royal Holloway, University of London. George attended the local grammar school, the Monoux School, and from there he won a scholarship to St John's College, Cambridge to read mathematics. In 1937 he went on to Princeton University to do graduate work on mathematical logic with Alonzo Church. Barnard was on holiday in Britain when the Second World War started and he never went back to Princeton to finish his PhD. The war made Barnard into a statistician as it did for many mathematicians of his generation. In 1940 he joined an engineering firm, Plessey, as a mathematical consultant. ...
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Statistical Disclosure Control
Statistical disclosure control (SDC), also known as statistical disclosure limitation (SDL) or disclosure avoidance, is a technique used in data-driven research to ensure no person or organization is identifiable from the results of an analysis of survey or administrative data, or in the release of microdata. The purpose of SDC is to protect the confidentiality of the respondents and subjects of the research. SDC usually refers to 'output SDC'; ensuring that, for example, a published table or graph does not disclosure confidential information about respondents. SDC can also describes protection methods applied to the data: for example, removing names and addresses, limiting extreme values, or swapping problematic observations. This is sometimes referred to as 'input SDC', but is more commonly called anonymization, de-identification, or microdata protection. Textbooks (eg ) typically cover input SDC and tabular data protection (but not other parts of output SDC). This is because the ...
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Mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of ...
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University Of Essex
The University of Essex is a public university, public research university in Essex, England. Established by royal charter in 1965, Essex is one of the original plate glass university, plate glass universities. Essex's shield consists of the ancient arms attributed to the Kingdom of Essex, and the motto, "Thought the harder, heart the keener", is adapted from the Anglo-Saxon poem ''The Battle of Maldon''. The university comprises three campuses with its primary campus located within Wivenhoe Park and campuses in Southend-on-Sea and in Loughton. Essex is rated Gold for Teaching Excellence by the TEF since 2017, named University of the Year at the Times Higher Education awards, Times Higher Education Awards in 2018, and is ranked an internationally excellent research-intensive university by the Research Excellence Framework, REF. Essex's Department of Government received Regius Professorship conferred by Elizabeth II, Her Majesty, The Queen in 2013 and the university was awarded t ...
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United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ...
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Information Privacy
Information privacy is the relationship between the collection and dissemination of data, technology, the public expectation of privacy, contextual information norms, and the legal and political issues surrounding them. It is also known as data privacy or data protection. Data privacy is challenging since attempts to use data while protecting an individual's privacy preferences and personally identifiable information. The fields of computer security, data security, and information security all design and use software, hardware, and human resources to address this issue. Authorities Laws Authorities by country Information types Various types of personal information often come under privacy concerns. Cable television This describes the ability to control what information one reveals about oneself over cable television, and who can access that information. For example, third parties can track IP TV programs someone has watched at any given time. "The addition of any informati ...
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Statistical Disclosure Control
Statistical disclosure control (SDC), also known as statistical disclosure limitation (SDL) or disclosure avoidance, is a technique used in data-driven research to ensure no person or organization is identifiable from the results of an analysis of survey or administrative data, or in the release of microdata. The purpose of SDC is to protect the confidentiality of the respondents and subjects of the research. SDC usually refers to 'output SDC'; ensuring that, for example, a published table or graph does not disclosure confidential information about respondents. SDC can also describes protection methods applied to the data: for example, removing names and addresses, limiting extreme values, or swapping problematic observations. This is sometimes referred to as 'input SDC', but is more commonly called anonymization, de-identification, or microdata protection. Textbooks (eg ) typically cover input SDC and tabular data protection (but not other parts of output SDC). This is because the ...
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Statistics Canada
Statistics Canada (StatCan; french: Statistique Canada), formed in 1971, is the agency of the Government of Canada commissioned with producing statistics to help better understand Canada, its population, resources, economy, society, and culture. It is headquartered in Ottawa.Statistics Canada, 150 Tunney's Pasture Driveway Ottawa, Ontario K1A 0T6; Statistique Canada 150, promenade du pré Tunney Ottawa, Ontario K1A 0T6 The agency is led by the chief statistician of Canada, currently Anil Arora, who assumed the role on September 19, 2016. StatCan is responsible to Parliament through the Minister of Innovation, Science and Industry, currently François-Philippe Champagne. Statistics Canada acts as the national statistical agency for Canada, and Statistics Canada produces statistics for all the provinces as well as the federal government. In addition to conducting about 350 active surveys on virtually all aspects of Canadian life, the '' Statistics Act'' mandates that Statistic ...
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Statistics New Zealand
Statistics New Zealand ( mi, Tatauranga Aotearoa), branded as Stats NZ, is the public service department of New Zealand charged with the collection of statistics related to the economy, population and society of New Zealand. To this end, Stats NZ produces censuses and surveys. Organisation Statistics New Zealand employs people with a variety of skills, including statisticians, mathematicians, computer science specialists, accountants, economists, demographers, sociologists, geographers, social psychologists, and marketers. There are seven organisational subgroups each managed by a Deputy Government Statistician: * Macro-economic and Environment Statistics studies prices, national accounts, develops macro-economic statistics, does government and international accounts, and ANZSIC 06 implementation (facilitating changeover to new classification code developed jointly with Australian statistics officials.) * Social and Population Statistics studies population, social conditions, ...
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Office For National Statistics
The Office for National Statistics (ONS; cy, Swyddfa Ystadegau Gwladol) is the executive office of the UK Statistics Authority, a non-ministerial department which reports directly to the UK Parliament. Overview The ONS is responsible for the collection and publication of statistics related to the economy, population and society of the UK; responsibility for some areas of statistics in Scotland, Northern Ireland and Wales is devolved to the devolved governments for those areas. The ONS functions as the executive office of the National Statistician, who is also the UK Statistics Authority's Chief Executive and principal statistical adviser to the UK's National Statistics Institute, and the 'Head Office' of the Government Statistical Service (GSS). Its main office is in Newport near the United Kingdom Intellectual Property Office and Tredegar House, but another significant office is in Titchfield in Hampshire, and a small office is in London. ONS co-ordinates data collection wi ...
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Australian Bureau Of Statistics
The Australian Bureau of Statistics (ABS) is the independent statutory agency of the Australian Government responsible for statistical collection and analysis and for giving evidence-based advice to federal, state and territory governments. The ABS collects and analyses statistics on economic, population, environmental and social issues, publishing many on their website. The ABS also operates the national Census of Population and Housing that occurs every five years. History In 1901, statistics were collected by each state for their individual use. While attempts were made to coordinate collections through an annual Conference of Statisticians, it was quickly realized that a National Statistical Office would be required to develop nationally comparable statistics. The Commonwealth Bureau of Census and Statistics (CBCS) was established under the Census and Statistics Act in 1905. Sir George Knibbs was appointed as the first Commonwealth Statistician. Initially, the bureau w ...
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Data Protection Act 1998
The Data Protection Act 1998 (DPA, c. 29) was an Act of Parliament of the United Kingdom designed to protect personal data stored on Computer, computers or in an organised paper filing system. It enacted provisions from the European Union (EU) Data Protection Directive 1995 on the protection, processing, and movement of data. Under the 1998 DPA, individuals had legal rights to control information about themselves. Most of the Act did not apply to domestic use,''Data Protection Act 1998''Part IV (Exemptions), Section 36, Office of Public Sector Information, accessed 6 September 2007 such as keeping a personal address book. Anyone holding personal data for other purposes was legally obliged to comply with this Act, subject to some exemptions. The Act defined eight data protection principles to ensure that information was processed lawfully. It was superseded by the Data Protection Act 2018 (DPA 2018) on 23 May 2018. The DPA 2018 supplements the EU General Data Protection Regulation ...
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