Then the algorithm calculates how

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South Korean ex-president Park Geun-hye arrives at a Seoul court yesterday. — Reuters
SOUTH Korea’s former leader Park Geun-hye abused her power and pressured companies to pay her tens of millions of dollars in bribes Women's Nike M2K Tekno Phantom Grey Silver UK , a prosecutor told a Seoul court at the start of her corruption trial yesterday.


If found guilty of taking bribes from business leaders including Samsung Group scion Jay Y. Lee, one of the key accusations that led to her impeachment, Park faces more than 10 years in jail.


Park, the country’s first democratically elected leader to be removed from office, is charged with taking bribes worth 29.8 billion won (US$26.65 million) from Lee alone.


“The accused Park Geun-Hye Men's Nike Air Vortex Total Orange Black UK , in collusion with her friend Choi Soon-Sil ... abused power and pressured business companies to provide bribes, thus taking private gains,” senior prosecutor Lee Won-seok told the court.


“The accused deny even the most basic facts but the charges are fully supported by material evidence and testimonies.”


Park has denied any wrongdoing and pleaded not guilty at the trial. Her lawyers rejected the 18 charges against her in pre-trial proceedings. Lee has also rejected charges he bribed Park in return for favors for Samsung.


“There was no reason for president Park to force companies to donate money which she was unable to use for herself,” Park’s lawyer Yoo Yeong-ha told the court.


“There were no monetary gains she could have had personally from the establishment of the two foundations, as no individuals could freely take funds from the foundations Men's Nike Air Safari Cobblestone UK ,” said Yoo, referring to two sporting foundations formed to support Park’s policies.


Park’s court appearance is the first time she has been seen in public since her arrest in March. She arrived at court handcuffed and wearing a navy pantsuit, her hair held back in a haphazard bun and her face showing little sign of make-up.


In the courtroom she sat grim faced, her eyes puffy and looking straight ahead, next to a lawyer sitting with Choi Soon-sil Men's Nike Epic React Flyknit Olive Black Green UK , the friend accused of colluding with Park to take bribes.


The two, who are being reunited for the first time since the scandal erupted in public in late October, did not acknowledge each other or exchange words as they entered the courtroom.


Media reported Park said she did not want a jury trial. Defendants have the right to be tried by a jury although its decision is not binding and can be changed by the presiding judge.


Park said little during the first day of her trial, conferring quietly with Yoo.


In contrast, Choi was tearful when she addressed the court.


“I have been serving president Park for the past four decades. I feel very sorry for causing president Park to stand trial like this Women's Nike Epic React Flyknit Cargo Khaki Black Green UK ,” she told the court, half sobbing, adding Park is “not a person who can be lured by bribes.”


The court adjourned around midday, with the next trial day set for tomorrow.


WASHINGTON, Feb. 2 (Xinhua) -- An international team has shown that quantum computers can analyze relationships within large sets of data faster than classical computers Men's Nike Air More Uptempo Black Reflective Black UK , for a wider array of data types than previously expected.


The study, published on Friday in American journal Physical Review Letters, proposed a "quantum linear system algorithm" that could conduct quantum computation with application in artificial intelligence (AI) and crunch numbers on problems such as commodities pricing, social networks and chemical structures.


The linear system algorithm, first proposed in 2009 Women's Nike Air Max 1 White UK , works on a large matrix of data and has kick-started research into quantum forms of machine learning, or artificial intelligence.


"There is a lot of computation involved in analyzing the matrix. When it gets beyond say 10,000 by 10,000 entries, it becomes hard for classical computers Nike Air VaporMax Moc 2 Sail Anthracite UK ," explained Zhao Zhikuan, the paper's corresponding author from Singapore University of Technology and Design.


Zhao also said the previous quantum algorithm of this kind can be applied to a very specific type of problem. This is because the number of computational steps goes up rapidly with the number of elements in the matrix: every doubling of the matrix size increases the length of the calculation eight-fold.


Zhao and his colleague in Singapore, Switzerland and the United Kingdom, present a new algorithm that is faster than both the classical and the previous quantum versions.


It relies on a technique known as quantum singular value estimation and can cope with data not limited to "sparse" ones as required by the previous versions.


There are limited relationships among the elements in sparse data, but it is often not true of real-world data Women's Nike Air Max 270 Triple White UK , Zhao said.


For example, a trader might be trying to predict the future price of goods. The matrix may capture historical data about price movements over time and data about features that could be influencing these prices, such as exchange rates.


Then the algorithm calculates how strongly each feature is correlated with another by "inverting" the matrix. This information can then be used to extrapolate into the future.


But to show a real quantum advantage over the classical algorithms will need bigger quantum computers.


Zhao estimates that it still need additional three to five years when they can actually use the hardware to do meaningful quantum computation with application in artificial intelligence.




Bayern Munich winger Franck Ribery and Spain's international Xavier Hernandez from FC Barcelona revealed on Sunday at the 8th Dubai International Sports Conference their hopes and personal challenges for 2014.


French star Ribery said on the second and final day of the sports conference Bayern Munich reached the top of its success and that the team and its new coach Pep Guardiola were working hard to stay on top.


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