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Google's Translatotron 2 removes ability to deepfake voices

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All the sessions from Transform 2021 are available on-demand now. In 2019, Google released Translatotron, an AI system capable of directly translating a person's voice into another language. The system could create synthesized translations of voices to keep the sound of the original speaker's voice intact. But Translatotron could also be used to generate speech in a different voice, making it ripe for potential misuse in, for example, deepfakes. This week, researchers at Google quietly released a paper detailing Translatotron's successor, Translatotron 2, which solves the original issue with Translatotron by restricting the system to retain the source speaker's voice.


Why people end up mad when AI flags toxic speech - Futurity

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You are free to share this article under the Attribution 4.0 International license. The main problem: There is a huge difference between evaluating more traditional AI tasks, like recognizing spoken language, and the much messier task of identifying hate speech, harassment, or misinformation--especially in today's polarized environment. "It appears as if the models are getting almost perfect scores, so some people think they can use them as a sort of black box to test for toxicity," says Mitchell Gordon, a PhD candidate in computer science at Stanford University who worked on the project. They're evaluating these models with approaches that work well when the answers are fairly clear, like recognizing whether'java' means coffee or the computer language, but these are tasks where the answers are not clear." Facebook says its artificial intelligence models identified and pulled down 27 million pieces of hate speech in the final three months of 2020.


Natural Language processing (NLP)

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Human beings are the most advanced species on earth. There's no doubt in that and our success as human beings is because of our ability to communicate and share information but that's where the concept of developing a language comes in. We talk about the human language it is one of the most diverse and complex part of us considering a total of 6500 languages that exist century according to industry estimates only 21% of the available data is present in the structured form. Data is being generated at least be treat in send messages on WhatsApp or areas of the groups of Facebook and majority of this data accessed in the textual form, which is highly unstructured in nature. Now in order to produce significant actionable insights from this data it is important to get the techniques of text analysis and natural language processing so let's understand.


What is Information Extraction? - A Detailed Guide

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Working with an enormous amount of text data is always hectic and time-consuming. Hence, many companies and organisations rely on Information Extraction techniques to automate manual work with intelligent algorithms. Information extraction can reduce human effort, reduce expenses, and make the process less error-prone and more efficient. It will also cover use-cases, challenges and discuss how to set up information extraction NLP workflows for your business. For example, consider we're going through a company's financial information from a few documents.


What is Offensive Language Detection?

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We can describe Offensive Language Detection as identifying abusive behaviours, such as hate speech, offensive language, sexism, and racism, in any text-related conversation on digital platforms. We can also refer to it as Hate Speech Detection, Abuse Detection, Flame, or Cyberbullying Detection. In recent years, with the increased use of social media platforms, human interactions are becoming rapid and informal at the same time. Administrators of these platforms are using extensive methods to check inappropriate behaviour and language. In almost any social community, we can find offensive language in text formats such as text messages, instant messages, social media messages, comments, message forums, and even online games.


The evolution of AI in CX and market research – Insightflow

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Artificial Intelligence as we've come to know it is an incredibly complex tool. All manner of things can be analysed with AI, from shopping habits to logistical solutions. But what we're interested in here is using AI in speech and language recognition. Regular AI is really good at detecting intelligent speech, however it struggles to detect the emotional intention behind speech. When learning another language at school, we learn specifics – cat chat, dog chien. We don't learn the nuances behind the language until we experience them.


Brain signals 'speak for person with paralysis

Science

A man unable to speak after a stroke has produced sentences through a system that reads electrical signals from speech production areas of his brain, researchers report this week. The approach has previously been used in nondisabled volunteers to reconstruct spoken or imagined sentences. But this first demonstration in a person who is paralyzed “tackles really the main issue that was left to be tackled—bringing this to the patients that really need it,” says Christian Herff, a computer scientist at Maastricht University who was not involved in the new work. The participant had a stroke more than a decade ago that left him with anarthria—an inability to control the muscles involved in speech. Because his limbs are also paralyzed, he communicates by selecting letters on a screen using small movements of his head, producing roughly five words per minute. To enable faster, more natural communication, neurosurgeon Edward Chang of the University of California, San Francisco, tested an approach that uses a computational model known as a deep-learning algorithm to interpret patterns of brain activity in the sensorimotor cortex, a brain region involved in producing speech ( Science , 4 January 2019, p. [14][1]). The approach has so far been tested in volunteers who have electrodes surgically implanted for nonresearch reasons such as to monitor epileptic seizures. In the new study, Chang's team temporarily removed a portion of the participant's skull and laid a thin sheet of electrodes smaller than a credit card directly over his sensorimotor cortex. To “train” a computer algorithm to associate brain activity patterns with the onset of speech and with particular words, the team needed reliable information about what the man intended to say and when. So the researchers repeatedly presented one of 50 words on a screen and asked the man to attempt to say it on cue. Once the algorithm was trained with data from the individual word task, the man tried to read sentences built from the same set of 50 words, such as “Bring my glasses, please.” To improve the algorithm's guesses, the researchers added a processing component called a natural language model, which uses common word sequences to predict the likely next word in a sentence. With that approach, the system only got about 25% of the words in a sentence wrong, they report this week in The New England Journal of Medicine . That's “pretty impressive,” says Stephanie Riès-Cornou, a neuroscientist at San Diego State University. (The error rate for chance performance would be 92%.) Because the brain reorganizes over time, it wasn't clear that speech production areas would give interpretable signals after more than 10 years of anarthria, notes Anne-Lise Giraud, a neuroscientist at the University of Geneva. The signals' preservation “is surprising,” she says. And Herff says the team made a “gigantic” step by generating sentences as the man was attempting to speak rather than from previously recorded brain data, as most studies have done. With the new approach, the man could produce sentences at a rate of up to 18 words per minute, Chang says. That's roughly comparable to the speed achieved with another brain-computer interface, described in Nature in May. That system decoded individual letters from activity in a brain area responsible for planning hand movements while a person who was paralyzed imagined handwriting. These speeds are still far from the 120 to 180 words per minute typical of conversational English, Riès-Cornou notes, but they far exceed what the participant can achieve with his head-controlled device. The system isn't ready for use in everyday life, Chang notes. Future improvements will include expanding its repertoire of words and making it wireless, so the user isn't tethered to a computer roughly the size of a minifridge. [1]: http://www.sciencemag.org/content/363/6422/14


Paralyzed man's brain waves turned into sentences on computer in medical first

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In a medical first, researchers harnessed the brainwaves of a paralyzed man unable to speak and turned what he intended to say into sentences on a computer screen. It will take years of additional research but the study, reported Wednesday, marks an important step toward one day restoring more natural communication for people who can't talk because of injury or illness. "Most of us take for granted how easily we communicate through speech," said Dr Edward Chang, a neurosurgeon at the University of California, San Francisco, who led the work. "It's exciting to think we're at the very beginning of a new chapter, a new field" to ease the devastation of patients who have lost that ability. Today, people who can't speak or write because of paralysis have very limited ways of communicating.


Device taps brain waves to help paralyzed man communicate

FOX News

Fox News Flash top headlines are here. Check out what's clicking on Foxnews.com. In a medical first, researchers harnessed the brain waves of a paralyzed man unable to speak -- and turned what he intended to say into sentences on a computer screen. It will take years of additional research but the study, reported Wednesday, marks an important step toward one day restoring more natural communication for people who can't talk because of injury or illness. "Most of us take for granted how easily we communicate through speech," said Dr. Edward Chang, a neurosurgeon at the University of California, San Francisco, who led the work.


Severely paralyzed man communicates using brain signals sent to his vocal tract

Engadget

A severely paralyzed man has been able to communicate using a new type of technology that translates signals from his brain to his vocal tract directly into words that appear on a screen. Developed by researchers at UC San Francisco, the technique is a more natural way for people with speech loss to communicate than other methods we've seen to date. So far, neuroprosthetic technology has only allowed paralyzed users to type out just one letter at a time, a process that can be slow and laborious. It also tapped parts of the brain that control the arm or hand, a system that's not necessarily intuitive for the subject. The USCF system, however, uses an implant that's placed directly on the part of the brain dedicated to speech.