Alibaba Uses AI Voiceprint Recognition Technology To Fight Pornography

An anti-pornography system powered by artificial intelligence technology has been tested online in China Sunday, according to a report by China’s Science and Technology Daily Monday.

With voiceprint recognition technology, the system developed by Chinese tech giant Alibaba Group Holding Ltd. is able to detect pornographic content. The system can recognize multiple languages including Mandarin Chinese, English and Russian, as well as Chinese dialects from various regions including Guangdong, Sichuan, Hubei and Henan.

The system transcripts voice to texts and then compares the scripts with key words in its lexicon and anti-pornography model to decide whether it is pornographic. It can also recognize moaning sex sounds.

The system has been fed with dialects and multiple languages for training. A staff at Alibaba told the newspaper that they played lots of Cantonese TV series to teach the system Cantonese.

In June, China’s anti-pornography office said it found some autonomous sensory meridian response (ASMR) porn on some online platforms. ASMR is the experience of listening to gentle audio recordings for relaxation. It is expected the new anti-pornography system can be used to tackle ASMR in the future.

Additionally, Alibaba has also trained its system to recognize porn images. Its system can recognize hundreds of millions of images daily.

The system is scheduled to be put into operation in September this year.

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