Bots tweaking pre-election Twitter trends in India: US experts

Agencies
April 9, 2019

New Delhi, Apr 9: In the run-up to the general elections, automated Twitter bots made a massive attempt to boost political hashtags, both in support of and in opposition to Prime Minster Narendra Modi, according to a research conducted by US experts. 

The automated accounts were deployed on a massive scale on February 9-10, with small groups of accounts pushing out thousands of posts an hour, according to the team from the US think-tank Atlantic Council's Digital Forensic Research Lab (DFRLab). 

The accounts were domestic in origin and substance, researchers said. 

While bots were used on both sides on February 9-10, the pro-Modi traffic was far more heavily manipulated than the anti-Modi traffic. 

According to the team, the pro-Modi traffic far more heavily manipulated than any large-scale traffic flow the DFRLab has analysed as of yet. 

"The incident highlights the sheer scale of attempts to manipulate Twitter traffic as India's main political parties head to the polls. It also underlines the extent to which social media more broadly has become an electoral battleground," the researchers wrote in a blog post.

Ben Nimmo, Senior Fellow for Information Defense at the DFRLab took to Twitter to highlight the findings. 

"These manipulation attempts ranged from large to extreme," Nimmo wrote in a Twitter post. 

"They were too clumsy to have much impact, but the sheer scale of the attempts on both sides is worrying, ahead of the election," Nimmo said. 

While the scale of the activity was vast, its impact was rather muted given the relatively low number of followers of the accounts. 

The massive scale of the attempted manipulation nevertheless bodes ill for the quality of online debate in India as the election approaches. 

It remains important to be able to expose such efforts, researchers said. 

The DFRLab scanned traffic on the hashtag #TNwelcomesModi, short for "Tamil Nadu welcomes Modi," which trended in India on February 9-10 and was mentioned over 777,000 times in two days. 

The most frequently posting account was @SasiMaha6, which posted #TNwelcomesModi tweets 1,803 times during the scan, or roughly one tweet every 15 seconds. 

Another high-volume account was @priyamanaval6, which posted the hashtag 1,677 times, or roughly one tweet every 17 seconds for over seven hours. 

These sustained rates are far too high for human posting, researchers said. The top three accounts alone posted #TNwelcomesModi 4,914 times, or roughly 10 percent of all traffic in the scan. 

The 50 most active accounts generated 30,446 tweets, or 61.2 percent of all traffic. 

The bot-driven praise for Modi's visit was countered, in part, by bots. On February 10, the hashtag #GoBackModi also trended, pushing messages that supported the Congress Party. 

This hashtag trended even faster, racking up 49,538 tweets in just over three hours in the early morning of February 10. It peaked at a lower rate, however, generating 447,000 posts on February 9-10. 

Just like #TNwelcomesModi, #GoBackModi was heavily pushed by a small number of high-volume accounts that posted hundreds of times an hour. Unlike #TNwelcomesModi, these accounts were still not suspended at the time of drafting. 

The most active was @PhillyTdp, which posted on #GoBackModi 2,179 times as the hashtag took off -- a staggering one tweet every 5.3 seconds for over three hours. 

Other accounts were similarly hyperactive. The second most active, @nritdpusa, posted 1,899 times in three hours, or roughly one tweet every 6 seconds. 

Overall, the nearly 50,000 tweets in the #TNwelcomesModi scan were posted by just 891 accounts, while the nearly 50,000 tweets in the #GoBackModi scan were posted by 7,394 accounts. 

By any measure, #TNwelcomesModi saw a much more aggressive attempt to make the hashtag trend from a much smaller user base, researchers wrote in the blog.

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News Network
February 9,2020

New Delhi, Feb 9: As the outbreak of novel coronavirus has lead to the death of more than 800 Chinese nationals, aviation regulator DGCA on Saturday said that foreigners who went to China on or after January 15 will not be allowed to enter India.

The DGCA, in its circular to airlines on Saturday, reiterated that all visas issued to Chinese nationals before February 5 have been suspended.

However, the Directorate General of Civil Aviation (DGCA) clarified, "These visa restrictions will not apply to aircrew, who may be Chinese nationals or other foreign nationalities coming from China."

"Foreigners who have been to China on or after January 15, 2020, are not allowed to enter India from any air, land or seaport, including Indo-Nepal, Indo-Bhutan, Indo-Bangladesh or Indo-Myanmar land borders," the DGCA said.

Among Indian airlines, IndiGo and Air India have suspended all of their flights between the two countries. SpiceJet continues to fly on Delhi-Hong Kong route.

On February 1 and 2, Air India conducted two special flights to Chinese city of Wuhan, epicentre of the outbreak, evacuating 647 Indians and seven Maldivians.

Till date, three Indians have tested positive for novel coronavirus.

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News Network
April 28,2020

Los Angeles, Apr 28: People who experience loss of smell as one of the COVID-19 symptoms are likely to have a mild to moderate clinical course of the disease, according to a study which may help health care providers determine which patients require hospitalisation.

The findings, published in the journal International Forum of Allergy & Rhinology, follows an earlier study that validated the loss of smell and taste as indicators of infection with the novel coronavirus, SARS-CoV-2.

According to the scientists from the University of California (UC) San Diego Health in the US, patients who reported loss of smell were 10 times less likely to be hospitalised for COVID-19 compared to those without the symptom.

"One of the immediate challenges for health care providers is to determine how to best treat persons infected by the novel coronavirus," said Carol Yan, first author of the current study and rhinologist from the UC San Diego Health.

"If they display no or mild symptoms, can they return home to self-quarantine or will they likely require hospitalisation? These are crucial questions for hospitals trying to efficiently and effectively allocate finite medical resources," Yan said.

The findings, according to the researchers, suggest that loss of smell may be predictive of a milder clinical course of COVID-19.

"What's notable in the new findings is that it appears that loss of smell may be a predictor that a SARS-CoV-2 infection will not be as severe, and less likely to require hospitalisation," Yan said.

"If an infected person loses that sense, it seems more likely they will experience milder symptoms, barring other underlying risk factors," she added.

Risk factors for COVID-19 previously reported by other studies include age, and underlying medical conditions, such as chronic lung disease, serious heart conditions, diabetes, and obesity.

In the current study, the scientists made a retrospective analysis between March 3 and April 8 including 169 patients who tested positive for COVID-19 at UC San Diego Health.

They assessed olfactory and gustatory data for 128 of the 169 patients, 26 of whom required hospitalisation.

According to the researchers, patients who were hospitalised for COVID-19 treatment were significantly less likely to report anosmia or loss of smell -- 26.9 per cent compared to 66.7 per cent for COVID-19-infected persons treated as outpatients.

Similar percentages were found for loss of taste, known as dysgeusia, they said.

"Patients who reported loss of smell were 10 times less likely to be admitted for COVID-19 compared to those without loss of smell," said study co-author Adam S. DeConde.

"Moreover, anosmia was not associated with any other measures typically related to the decision to admit, suggesting that it's truly an independent factor and may serve as a marker for milder manifestations of Covid-19," DeConde said.

The researchers suspect that the findings hint at some of the physiological characteristics of the infection.

"The site and dosage of the initial viral burden, along with the effectiveness of the host immune response, are all potentially important variables in determining the spread of the virus within a person and, ultimately, the clinical course of the infection," DeConde said.

If the SARS-CoV-2 virus initially concentrates in the nose and upper airway, where it impacts olfactory function, that may result in an infection that is less severe and sudden in onset, decreasing the risk of overwhelming the host immune response, respiratory failure, and hospitalisation, the scientists added.

"This is a hypothesis, but it's also similar to the concept underlying live vaccinations," DeConde explained.

"At low dosage and at a distant site of inoculation, the host can generate an immune response without severe infection," he added.

Loss of smell, according to the study, might also indicate a robust immune response which has been localised to the nasal passages, limiting effects elsewhere in the body.

Citing the limitations of the study, the scientists said they relied upon self-reporting of anosmia from participants, which posed a greater chance of recall bias among patients once they had been diagnosed with COVID-19.

They added that patients with more severe respiratory disease requiring hospitalisation may not be as likely to recognise or recall the loss of smell.

So the researchers said more expansive studies are needed for validating the results.

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Agencies
January 7,2020

Washington, Jan 7: Facebook will ban deepfake videos ahead of the US elections but the new policy will still allow heavily edited clips so long as they are parody or satire, the social media giant said Tuesday.

Deepfake videos are hyper-realistic doctored clips made using artificial intelligence or programs that have been designed to accurately fake real human movements.

In a blog published following a Washington Post report, Facebook said it would begin removing clips that were edited--beyond for clarity and quality--in ways that "aren't apparent to an average person" and could mislead people.

Clips would be removed if they were "the product of artificial intelligence or machine learning that merges, replaces or superimposes content onto a video, making it appear to be authentic," the statement from Facebook vice-president Monika Bickert said.

However, the statement added: "This policy does not extend to content that is parody or satire, or video that has been edited solely to omit or change the order of words."

US media noted the new guidelines would not cover videos such as the 2019 viral clip -- which was not a deepfake -- of House Speaker Nancy Pelosi that appeared to show her slurring her words.

Facebook also gave no indication on the number of people assigned to identify and take down the offending videos, but said videos failing to meet its usual guidelines would be removed, and those flagged clips would be reviewed by teams of third-party fact-checkers -- among them AFP.

The news agency has been paid by the social media giant to fact-check posts across 30 countries and 10 languages as part of a program starting in December 2016, and including more than 60 organisations.

Content labeled "false" is not always removed from newsfeeds but is downgraded so fewer people see it -- alongside a warning explaining why the post is misleading.

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