Facebook Explains How It Picks What to “Trend”

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Facebook this week published a blog post in its newsroom in response to recent accusations that the social network promotes liberal news while downplaying conservative, explaining how it picks posts for its “Trending Topics” section, a decision-making process which depends on people and machines at different stages.

Facebook’s VP of Global Operations Justin Osofsky wrote the blog post Thursday in which he explained that in Facebook’s ambition to connect people around major news events and let them together discuss ideas freely, the Trending Topics team reviews themes identified as potentially trending by the website’s algorithms, which measure Facebook user engagement. They confirm the topic is current news, find corroborating news stories, apply a label to the topic, and check if the story is getting attention from a lot of news outlets nationally and/or globally.

Osofsky further explained that because Facebook’s programs deliver posts based on what a user has demonstrated interest in, users will see different Trending Topics.

Once a user clicks to see more about a Trending Topic, however, they are seeing an organization of posts within that topic which are arranged algorithmically — the ones at the top are those that have seem to have the most social engagement because the most people have liked, shared or commented on them.

Justin Osofsky
Justin Osofsky

As far as measures Facebook takes to prevent the type of political bias that was part of the recent accusations, Osofsky wrote that it “does not allow or advise our reviewers to discriminate against sources of any political origin, period,” and that, of course, the algorithm that “surfaces” potentially trending topics has no such bias.

Facebook’s review guidelines include not permitting “the suppression of political perspectives” or “the prioritization of one ideological viewpoint over another,” and that the company regularly reviews the work of the review team members.

In a specific response to the recent allegations, Osofsky wrote, “We take these reports very seriously, and will continue to investigate the allegations. We have found no evidence to date that Trending Topics was successfully manipulated, but will continue the review of all our practices.”

Possible new law of nature on the way

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The world of physics is excited about strong but early evidence about the behavior of muons, paricles identical to electrons only 200x more massive (heavier), which once born take 2.2 microseconds to decay into an electron, and which spin like tops. In a new, extremely precise measurement, they were made to wobble using magnetic fields but they unexpectedly wobbled quite significantly faster than the Standard Model suggests they would. They might spin so fast due to an unknown force caused by an unknown particle, and this is what is so exciting.

“We found that a muon … is not in agreement with our current best theory of physics at the subatomic level, and … it potentially points to a future with new laws, new particles and new forces in physics which we haven’t seen to date,” said Professor Mark Lancaster at U of Manchester.

“The main goal of the experiment is to make the measurement and compare with the theory, and if they disagree then it’s telling us that there’s something in nature which is not in the theory,” explained James Mott at Fermilab.

The four known forces of nature (gravity, electricity, two nuclear forces: strong and weak interactions) have left scientists without an answer for some observed phenomena, such as the speed at which galaxies spin (faster than the best model suggests). Therefore, they continue to search for glitches in their already-tight models which might point them things they don’t yet know about.

The most recent work was done at Fermilab (Muon g-2 experiment), but a similar experiment was already done earlier at the Large Hadron Collider. These tools accelerate particles in large rings at close to the speed of light.

The evidence needs more tests for greater certainty, particularly to rule out the possibility of a systematic error, and particularly with a new, independent experiment, but physicists will be chasing this line of experiment eagerly.

“This is outstanding confirmation of experimental technique, and very, very suggestive of the possibility of new physics,” noted scientist David Hertzon of U of Washington.

By the editors

#AnomalousMagneticDipoleMomentOfTheMuon #QuantumElectrodynamics

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People in Kachin state demonstrate against China

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YANGON, Myanmar – The people in the Pharkant area of Kachin state demonstrated against China this week, drawing a cross on the Chinese flag and burning a picture of Myanmar’s military leader Min Aung Hlaing.

“China stands with the military leader,” shouted the demonstrators.

By Htay Win
Photo credit Aye Yarwaddy

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Myanmar military council arrests the artist Zarganar

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YANGON, Myanmar – The artist Zarganar was arrested by the Myanmar military council from his home in Tarmwe township, Yangon this morning.

Zarganar is not only a director but also a comedian famous for political jokes since the 1988 democratic revolution.

Zarganar was arrested by the Myanmar military many times before 2010.

By Htay Win
Photo credit Zarganar page

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Kayin IDPs struggle to get for food

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YANGON, Myanmar – Kayin internally displaced people are desperate for food, clothing and shelter, hiding in the forest from the air strikes of the Myanmar military.

The IDPs fled to neighboring Thailand, but Thai government turned them back. However, Wednesday morning the Thai government opened Maeseli jetty in Maehaungsaung district to sending rations and medicines over the border to Kayin state, according to a Thai media.

By Htay Win

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Twenty Myanmar celebrities charged with incitement

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YANGON, Myanmar -They were charged under the country’s media law with inciting government employees to join the popular civil disobedience movement (CDM) through social media.

Celebrities took part in the NLD election campaigns and are thought to have played a large part in influencing the public, particularly Myanmar’s youth, to vote for Aung San Suu Kyi.

By Htay Win
Photo credit Myanmar celebrity

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