praj-17/QA-MCQ-Open-ended huggingface dataset:
Title: Data_compression
Context: The world's first commercial broadcast automation audio compression system was developed by Oscar Bonello, an engineering professor at the University of Buenos Aires. In 1983, using the psychoacoustic principle of the masking of critical bands first published in 1967, he started developing a practical application based on the recently developed IBM PC computer, and the broadcast automation system was launched in 1987 under the name Audicom. Twenty years later, almost all the radio stations in the world were using similar technology manufactured by a number of companies.

question: Who developed the first commercial broadcast automation audio compression system? 

answer: Oscar Bonello

question: Who was an engineering professor at the University of Buenos Aires? 

answer: Oscar Bonello

question: What was launched in 1987 under the name Audicom? 

answer: broadcast automation system
Title: Data_compression
Context: The majority of video compression algorithms use lossy compression. Uncompressed video requires a very high data rate. Although lossless video compression codecs perform at a compression factor of 5-12, a typical MPEG-4 lossy compression video has a compression factor between 20 and 200. As in all lossy compression, there is a trade-off between video quality, cost of processing the compression and decompression, and system requirements. Highly compressed video may present visible or distracting artifacts.

question: What all mostly use lossy compression? 

answer: video compression algorithms

question: What requires a high data rate? 

answer: Uncompressed video

question: What may present visible or distracting artifacts? 

answer: Highly compressed video
Title: Data_compression
Context: Some video compression schemes typically operate on square-shaped groups of neighboring pixels, often called macroblocks. These pixel groups or blocks of pixels are compared from one frame to the next, and the video compression codec sends only the differences within those blocks. In areas of video with more motion, the compression must encode more data to keep up with the larger number of pixels that are changing. Commonly during explosions, flames, flocks of animals, and in some panning shots, the high-frequency detail leads to quality decreases or to increases in the variable bitrate.

question: What compression typically operate on square-shaped groups of pixels? 

answer: video

question: What only sends the differences within those pixels and blocks? 

answer: macroblocks

question: What does high-frequency detail lead to? 

answer: variable bitrate
Title: Data_compression
Context: Video data may be represented as a series of still image frames. The sequence of frames contains spatial and temporal redundancy that video compression algorithms attempt to eliminate or code in a smaller size. Similarities can be encoded by only storing differences between frames, or by using perceptual features of human vision. For example, small differences in color are more difficult to perceive than are changes in brightness. Compression algorithms can average a color across these similar areas to reduce space, in a manner similar to those used in JPEG image compression. Some of these methods are inherently lossy while others may preserve all relevant information from the original, uncompressed video.

question: What may be represented as a series of still image frames? 

answer: Video data

question: What can average a color across similar areas to reduce space? 

answer: Compression algorithms

question: What is hard to tell with smaller differences involved? 

answer: color
Title: Data_compression
Context: The most powerful used method works by comparing each frame in the video with the previous one. If the frame contains areas where nothing has moved, the system simply issues a short command that copies that part of the previous frame, bit-for-bit, into the next one. If sections of the frame move in a simple manner, the compressor emits a (slightly longer) command that tells the decompressor to shift, rotate, lighten, or darken the copy. This longer command still remains much shorter than intraframe compression. Interframe compression works well for programs that will simply be played back by the viewer, but can cause problems if the video sequence needs to be edited.

question: What still remains much shorter than intraframe compression? 

answer: longer command

question: What happens when a frame contains areas where nothing has moved? 

answer: the system simply issues a short command

question: What is a sequence that can be edited? 

answer: video
Title: Data_compression
Context: Because interframe compression copies data from one frame to another, if the original frame is simply cut out (or lost in transmission), the following frames cannot be reconstructed properly. Some video formats, such as DV, compress each frame independently using intraframe compression. Making 'cuts' in intraframe-compressed video is almost as easy as editing uncompressed video: one finds the beginning and ending of each frame, and simply copies bit-for-bit each frame that one wants to keep, and discards the frames one doesn't want. Another difference between intraframe and interframe compression is that, with intraframe systems, each frame uses a similar amount of data. In most interframe systems, certain frames (such as "I frames" in MPEG-2) aren't allowed to copy data from other frames, so they require much more data than other frames nearby.

question: What copies data from one frame to another? 

answer: interframe compression

question: What is a type of video format? 

answer: DV

question: What is almost as easy as editing uncompressed video? 

answer: Making 'cuts'
Title: Data_compression
Context: Today, nearly all commonly used video compression methods (e.g., those in standards approved by the ITU-T or ISO) apply a discrete cosine transform (DCT) for spatial redundancy reduction. The DCT that is widely used in this regard was introduced by N. Ahmed, T. Natarajan and K. R. Rao in 1974. Other methods, such as fractal compression, matching pursuit and the use of a discrete wavelet transform (DWT) have been the subject of some research, but are typically not used in practical products (except for the use of wavelet coding as still-image coders without motion compensation). Interest in fractal compression seems to be waning, due to recent theoretical analysis showing a comparative lack of effectiveness of such methods.

question: What do all commonly used video compression methods use? 

answer: discrete cosine transform

question: What does a DCT do? 

answer: spatial redundancy reduction

question: What is not used in practical products?  

answer: fractal compression
Title: Data_compression
Context: Genetics compression algorithms are the latest generation of lossless algorithms that compress data (typically sequences of nucleotides) using both conventional compression algorithms and genetic algorithms adapted to the specific datatype. In 2012, a team of scientists from Johns Hopkins University published a genetic compression algorithm that does not use a reference genome for compression. HAPZIPPER was tailored for HapMap data and achieves over 20-fold compression (95% reduction in file size), providing 2- to 4-fold better compression and in much faster time than the leading general-purpose compression utilities. For this, Chanda, Elhaik, and Bader introduced MAF based encoding (MAFE), which reduces the heterogeneity of the dataset by sorting SNPs by their minor allele frequency, thus homogenizing the dataset. Other algorithms in 2009 and 2013 (DNAZip and GenomeZip) have compression ratios of up to 1200-fold—allowing 6 billion basepair diploid human genomes to be stored in 2.5 megabytes (relative to a reference genome or averaged over many genomes).

question: What are the latest generation of lossless algorithms?  

answer: Genetics

question: What encoding reduces the heterogeneity of a dataset by sorting SNPs? 

answer: MAFE

question: What two algorithms have compression ratios of up to 1200-fold? 

answer: DNAZip and GenomeZip
Title: The_Sun_(United_Kingdom)
Context: The Sun had the largest circulation of any daily newspaper in the United Kingdom, but in late 2013 slipped to second largest Saturday newspaper behind the Daily Mail. It had an average daily circulation of 2.2 million copies in March 2014. Between July and December 2013 the paper had an average daily readership of approximately 5.5 million, with approximately 31% of those falling into the ABC1 demographic and 68% in the C2DE demographic. Approximately 41% of readers are women. The Sun has been involved in many controversies in its history, including its coverage of the 1989 Hillsborough football stadium disaster. Regional editions of the newspaper for Scotland, Northern Ireland and the Republic of Ireland are published in Glasgow (The Scottish Sun), Belfast (The Sun) and Dublin (The Irish Sun) respectively.

question: Which newspaper overtook The Sun as largest Saturday UK newspaper? 

answer: Daily Mail

question: What was the sun's circulation per day in March 2014? 

answer: 2.2 million copies

question: What was the largest demographic for readers of The Sun? 

answer: C2DE demographic

question: What is the percentage of The Sun readers who are women? 

answer: Approximately 41%

question: What is one controversial event covered by The Sun? 

answer: 1989 Hillsborough football stadium disaster
Title: The_Sun_(United_Kingdom)
Context: On 26 February 2012, The Sun on Sunday was launched to replace the closed News of the World, employing some of its former journalists. In late 2013, it was given a new look, with a new typeface. The average circulation for The Sun on Sunday in March 2014 was 1,686,840; but in May 2015 The Mail on Sunday sold more copies for the first time, an average of 28,650 over those of its rival: 1,497,855 to 1,469,195. Roy Greenslade issued some caveats over the May 2015 figures, but believes the weekday Daily Mail will overtake The Sun in circulation during 2016.

question: Which newspaper did the The Sun on Sunday take the place of? 

answer: News of the World

question: In what year was The Sun's look changed? 

answer: 2013

question: What was the circulation of The Sun on Sunday in March 2014? 

answer: 1,686,840

question: When did the Sunday Mail overtake The Sun in sales numbers? 

answer: May 2015

question: When is the weekly Mail forecast to pass The Sun in terms of circulation? 

answer: during 2016
Title: The_Sun_(United_Kingdom)
Context: Research commissioned by Cecil King from Mark Abrams of Sussex University, The Newspaper Reading Public of Tomorrow, identified demographic changes which suggested reasons why the Herald might be in decline. The new paper was intended to add a readership of 'social radicals' to the Herald's 'political radicals'. Launched with an advertising budget of £400,000 the brash new paper "burst forth with tremendous energy", according to The Times. Its initial print run of 3.5 million was attributed to 'curiosity' and the 'advantage of novelty', and had declined to the previous circulation of the Daily Herald (1.2 million) within a few weeks.

question: Who ordered research on the Herald? 

answer: Cecil King from Mark Abrams of Sussex University

question: What was named as a potential reason for the Herald's decline? 

answer: demographic changes

question: What type of people was the new paper supposed to attract? 

answer: 'social radicals'

question: What was the advertising budget of the new paper? 

answer: £400,000

question: What was the number of papers in the first print run of the Times? 

answer: 3.5 million
Title: The_Sun_(United_Kingdom)
Context: Seizing the opportunity to increase his presence on Fleet Street, he made an agreement with the print unions, promising fewer redundancies if he acquired the newspaper. He assured IPC that he would publish a "straightforward, honest newspaper" which would continue to support Labour. IPC, under pressure from the unions, rejected Maxwell's offer, and Murdoch bought the paper for £800,000, to be paid in instalments. He would later remark: "I am constantly amazed at the ease with which I entered British newspapers."

question: What did the prospective owner of the paper promise? 

answer: fewer redundancies

question: How did the prospective publisher describe the newspaper he would produce? 

answer: a "straightforward, honest newspaper"

question: Which party would the newspaper endorse? 

answer: Labour

question: What was the price paid for the newspaper? 

answer: £800,000

question: Whose offer to buy the paper was turned down? 

answer: Maxwell's offer
Title: The_Sun_(United_Kingdom)
Context: Murdoch found he had such a rapport with Larry Lamb over lunch that other potential recruits as editor were not interviewed and Lamb was appointed as the first editor of the new Sun. He was scathing in his opinion of the Mirror, where he had recently been employed as a senior sub-editor, and shared Murdoch's view that a paper's quality was best measured by its sales, and he regarded the Mirror as overstaffed, and primarily aimed at an ageing readership. Lamb hastily recruited a staff of about 125 reporters, who were mostly selected for their availability rather than their ability.

question: What position did Larry Lamb take with the Sun? 

answer: editor

question: What type of view did Lamb have of the Mirror? 

answer: scathing

question: What did Lamb and Murdoch believe to be the best indicator of newspaper quality? 

answer: its sales

question: What position did Lamb formerly hold at the Mirror? 

answer: senior sub-editor

question: How many reporters did Lamb hire for the Mirror's initial staff? 

answer: about 125
Title: The_Sun_(United_Kingdom)
Context: Sex was used as an important element in the content and marketing the paper from the start, which Lamb believed was the most important part of his readers' lives. The first topless Page 3 model appeared on 17 November 1970, German-born Stephanie Rahn; she was tagged as a "Birthday Suit Girl" to mark the first anniversary of the relaunched Sun. A topless Page 3 model gradually became a regular fixture, and with increasingly risqué poses. Both feminists and many cultural conservatives saw the pictures as pornographic and misogynistic. Lamb expressed some regret at introducing the feature, although denied it was sexist. A Conservative council in Sowerby Bridge, Yorkshire, was the first to ban the paper from its public library, shortly after Page 3 began, because of its excessive sexual content. This decision was reversed after a sustained campaign by the newspaper itself lasting 16 months, and the election of a Labour-led council in 1971.

question: What did Lamb employ as an important theme from the beginning of the paper? 

answer: Sex

question: When did the first Page 3 model appear topless? 

answer: 17 November 1970

question: Who was the first Page 3 topless model? 

answer: Stephanie Rahn

question: Who was the first to prohibit the paper from being in its library? 

answer: A Conservative council in Sowerby Bridge, Yorkshire

question: When was the library ban reversed? 

answer: 1971
Title: The_Sun_(United_Kingdom)
Context: Politically, The Sun in the early Murdoch years, remained nominally Labour. It supported the Labour Party led by Harold Wilson in the 1970 General Election, with the headline "Why It Must Be Labour" but by February 1974 it was calling for a vote for the Conservative Party led by Edward Heath while suggesting that it might support a Labour Party led by James Callaghan or Roy Jenkins. In the October election an editorial asserted: "ALL our instincts are left rather than right and we would vote for any able politician who would describe himself as a Social Democrat."

question: What were the Sun's political leanings early on under Murdoch? 

answer: nominally Labour

question: Who led the Labour Party in the 1970 General Election? 

answer: Harold Wilson

question: Who did the Sun support in 1974? 

answer: Edward Heath

question: Who would the Sun consider supporting from the Labour Party in 1974? 

answer: James Callaghan or Roy Jenkins

question: What type of politician did a Sun editorial state that it would support in October 1974? 

answer: any able politician who would describe himself as a Social Democrat
Title: The_Sun_(United_Kingdom)
Context: The editor, Larry Lamb, was originally from a Labour background, with a socialist upbringing while his temporary replacement Bernard Shrimsley (1972–75) was a middle-class uncommitted Conservative. An extensive advertising campaign on the ITV network in this period, voiced by actor Christopher Timothy, may have helped The Sun to overtake the Daily Mirror's circulation in 1978. Despite the industrial relations of the 1970s – the so-called "Spanish practices" of the print unions – The Sun was very profitable, enabling Murdoch to expand his operations to the United States from 1973.

question: Who temporarily replaced Larry Lamb? 

answer: Bernard Shrimsley

question: What was Shrimsley's political background? 

answer: middle-class uncommitted Conservative.

question: Who lent his voice to a campaign that aided The Sun in passing the Daily Mirror in 1978? 

answer: Christopher Timothy

question: Where did Murdoch begin expanding? 

answer: United States

question: When did Murdoch begin expanding into the U.S? 

answer: 1973
Title: The_Sun_(United_Kingdom)
Context: The Daily Star had been launched in 1978 by Express Newspaper, and by 1981 had begun to affect sales of The Sun. Bingo was introduced as a marketing tool and a 2p drop in cover price removed the Daily Star's competitive advantage opening a new circulation battle which resulted in The Sun neutralising the threat of the new paper. The new editor of The Sun, Kelvin MacKenzie, took up his post in 1981 just after these developments, and "changed the British tabloid concept more profoundly than [Larry] Lamb did", according to Bruce Page, MacKenzie The paper became "more outrageous, opinionated and irreverent than anything ever produced in Britain".

question: What newspaper was founded by Express Newspaper? 

answer: The Daily Star

question: By what year had The Daily Star started impacting The Sun's sales? 

answer: 1981

question: What helped the Sun overcome the Daily Star's challenge? 

answer: Bingo was introduced as a marketing tool and a 2p drop in cover price

question: Who became editor of the Sun in 1981? 

answer: Kelvin MacKenzie

question: What impact was Mackenzie said to have? 

answer: changed the British tabloid concept more profoundly than [Larry] Lamb did"
Title: The_Sun_(United_Kingdom)
Context: On 1 May, The Sun claimed to have 'sponsored' a British missile. Under the headline "Stick This Up Your Junta: A Sun missile for Galtieri’s gauchos", the newspaper published a photograph of a missile, (actually a Polaris missile stock shot from the Ministry of Defence) which had a large Sun logo printed on its side with the caption "Here It Comes, Senors..." underneath. The paper explained that it was 'sponsoring' the missile by contributing to the eventual victory party on HMS Invincible when the war ended. In copy written by Wendy Henry, the paper said that the missile would shortly be used against Argentinian forces. Despite this, it was not well received by the troops and copies of The Sun were soon burnt. Tony Snow, The Sun journalist on HMS Invincible who had 'signed' the missile, reported a few days later that it had hit an Argentinian target.

question: What did The Sun state that had it taken sponsorship of? 

answer: a British missile

question: What did the wording on the side of The Sun missile state? 

answer: "Here It Comes, Senors..."

question: Who did The Sun state that the missile would be used against? 

answer: Argentinian forces

question: How did troops react to the missile? 

answer: it was not well received

question: What was the name of The Sun journalist who reported on the missile? 

answer: Tony Snow
Title: The_Sun_(United_Kingdom)
Context: One of the paper's best known front pages, published on 4 May 1982, commemorated the torpedoing of the Argentine ship the General Belgrano by running the story under the headline "GOTCHA". At MacKenzie's insistence, and against the wishes of Murdoch (the mogul was present because almost all the journalists were on strike), the headline was changed for later editions after the extent of Argentinian casualties became known. John Shirley, a reporter for The Sunday Times, witnessed copies of this edition of The Sun being thrown overboard by sailors and marines on HMS Fearless.

question: What was the Sun's headline on 4 May 1982? 

answer: "GOTCHA"

question: Which Argentine ship was torpedoed? 

answer: the General Belgrano

question: Why did The Sun change the wording of the headline? 

answer: the extent of Argentinian casualties became known

question: Which reporter saw copies of The Sun being thrown into the ocean? 

answer: John Shirley

question: What ship were copies of The Sun thrown from? 

answer: HMS Fearless
Title: The_Sun_(United_Kingdom)
Context: After HMS Sheffield was wrecked by an Argentinian attack, The Sun was heavily criticised and even mocked for its coverage of the war in The Daily Mirror and The Guardian, and the wider media queried the veracity of official information and worried about the number of casualties, The Sun gave its response. "There are traitors in our midst", wrote leader writer Ronald Spark on 7 May, accusing commentators on Daily Mirror and The Guardian, plus the BBC's defence correspondent Peter Snow, of "treason" for aspects of their coverage.

question: Which ship was the target of Argentinian aggression? 

answer: HMS Sheffield

question: Which newspapers were highly critical of The Sun's war reporting? 

answer: The Daily Mirror and The Guardian

question: Who was lead writer of The Sun? 

answer: Ronald Spark

question: Who was the BBC's defense correspondent? 

answer: Peter Snow

question: What was the accusation leveled by Ronald Spark against The Daily Mirror, The Guardian, and BBC? 

answer: treason
Title: The_Sun_(United_Kingdom)
Context: These years included what was called "spectacularly malicious coverage" of the Labour Party by The Sun and other newspapers. During the general election of 1983 The Sun ran a front page featuring an unflattering photograph of Michael Foot, then aged almost 70, claiming he was unfit to be Prime Minister on grounds of his age, appearance and policies, alongside the headline "Do You Really Want This Old Fool To Run Britain?" A year later, in 1984, The Sun made clear its enthusiastic support for the re-election of Ronald Reagan as president in the USA. Reagan was two weeks off his 74th birthday when he started his second term, in January 1985.

question: Who did The Sun say was not fit to be Prime Minister in 1983? 

answer: Michael Foot

question: Which party was The Sun accused of covering maliciously? 

answer: Labour Party

question: Who did The Sun support in the 1984 U.S. presidential election? 

answer: Ronald Reagan

question: How old would Ronald Reagan turn soon after he began his second term as U.S. president? 

answer: 74

question: What did the headline read that was run with Michael Foot's photo? 

answer: "Do You Really Want This Old Fool To Run Britain?"