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Novel Algorithms to Spot Online Trolls, Says Study

The study was presented on December 14 last year at the AI for Social Good workshop at the 2019 Conference on Neural Information Processing Systems in Vancouver, Canada

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Algorithms
Starting with one keyword, this model can be used to find others that are closely related to that word to reveal clusters of relevant terms that are actually in use. Pixabay

Researchers, including two of Indian-origin, have demonstrated that machine-learning algorithms can monitor online social media conversations as they evolve, which could one day lead to an effective and automated way to spot online trolling.

Prevention of online harassment requires rapid detection of offensive, harassing, and negative social media posts, which in turn requires monitoring online interactions.

Current methods to obtain such social media data are either fully automated and not interpretable or rely on a static set of keywords, which can quickly become outdated. Neither method is very effective, according to Indian-origin researcher Maya Srikanth, from California Institute of Technology (Caltech) in the US.

“It isn’t scalable to have humans try to do this work by hand, and those humans are potentially biased,” Srikanth said.

“On the other hand, keyword searching suffers from the speed at which online conversations evolve. New terms crop up and old terms change meaning, so a keyword that was used sincerely one day might be meant sarcastically the next,” she added.

According to the study, the research team used a GloVe (Global Vectors for Word Representation) model to discover new and relevant keywords.

GloVe is a word-embedding model, meaning that it represents words in a vector space, where the “distance” between two words is a measure of their linguistic or semantic similarity.

New algorithms to spot online trolls: Study
New algorithms to spot online trolls: Study. (IANS)

Starting with one keyword, this model can be used to find others that are closely related to that word to reveal clusters of relevant terms that are actually in use.

For example, searching Twitter for uses of “MeToo” in conversations yielded clusters of related hashtags like “SupportSurvivors,” “ImWithHer,” and “NotSilent.”

This approach gives researchers a dynamic and ever-evolving keyword set to search.

The project was a proof-of-concept aimed at one day giving social media platforms a more powerful tool to spot online harassment.

“The field of AI research is becoming more inclusive, but there are always people who resist change,” said researcher Anima Anandkumar, who in 2018 found herself the target of harassment and threats online because of her successful effort to switch to an acronym without potentially offensive connotations.

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“It was an eye-opening experience about just how ugly trolling can get. Hopefully, the tools we’re developing now will help fight all kinds of harassment in the future,” she added.

The study was presented on December 14 last year at the AI for Social Good workshop at the 2019 Conference on Neural Information Processing Systems in Vancouver, Canada. (IANS)

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Twitter India Unveils Special Tricolor India Gate Emoji To Celebrate 71st Republic Day

This is the fifth year Twitter has supported Republic Day in India with a custom emoji

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Twitter
The social media platform Twitter also supports Independence Day, Diwali, Republic Day, Gandhi Jayanti among other key milestones and events, with innovative emojis that are designed keeping Indian culture and sentiment in mind, it said. Pixabay

 Twitter India on Friday launched a specially designed emoji of the India Gate lit up in the tricolour to celebrate India’s 71st Republic Day.

According to Twitter India, President Ram Nath Kovind will be tweeting with this emoji on January 25 during his address to the nation, as citizens across the country take to Twitter to participate in a public conversation.

“We believe that the 2020 Republic Day emoji will resonate with Indians across languages, cultures and time zones, giving them yet another reason, and way to celebrate and participate in public conversation,” Mahima Kaul, Director, Public Policy, India and South Asia, Twitter India, said in a statement.

The emoji will be live until January 30 and will be available in English as well as ten Indian languages, including Hindi, Tamil, Telugu, Kannada, Malayalam, Marathi, Bengali, Gujarati, Urdu and Gurmukhi.

Twitter
Twitter India on Friday launched a specially designed emoji of the India Gate lit up in the tricolour to celebrate India’s 71st Republic Day. IANS

This is the fifth year Twitter has supported Republic Day in India with a custom emoji.

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The social media platform also supports Independence Day, Diwali, Republic Day, Gandhi Jayanti among other key milestones and events, with innovative emojis that are designed keeping Indian culture and sentiment in mind, it said. (IANS)