In the early morning of April 7, the Yongding District Government of Zhangjiajie City, Hunan Province, China issued a notice saying that at 13:30 on April 4, four foreign provinces (three men and one woman) jumped the cliff in Tianmen Mountain.Die, the woman died because of the poisoning before the cliff jumped, and died of urgent treatment to rescue the rescue. The four of them committed suicide, eliminating criminal cases and other factors.At present, all the remains of the three cliff jumps have been found, and the relevant departments have also been involved in the investigation.The four are from Fujian, Hebei, Henan, and Sichuan, and they ranging from 22 to 33.One of them had been poisoned before jumping the cliff, and of course, others did not rule out that others were also poisoned, indicating that they had decided, and let their death be public to the public.

The four are from four provinces, but they go to Zhangjiajie Tianmen Mountain at the same time together to commit suicide at the same time, indicating that there is a connection on the Internet. It is the "offensive and defensive alliance."The local police have confirmed to their family members that the four deceased communicated and planned through group chat methods, one of which was the leader.Before the cliff jumped off the cliff, tore off the paper from the same book, and wrote the last words on it. The content of the testament was very simple. There was only one sentence, "I have a certain civilian ability.It has nothing to do with it. "Shi Shu was written on April 2.Among them, female suicide from Sichuan likes to play games "Werewolf Kill". This is a group of players playing at the same time. One or more of them is a werewolf identity and will kill one player every night.Players should find ways to find werewolves and voted to kill werewolfs during the day; those who were addicted to the werewolf killed, psychologically or difficult to trust others.

This incident also proposes a difficult challenge in the information age, how to interfere with such collectives and committing suicide.

Goose over time, people take photos.In the Internet age, everyone may leave their own traces and ideas in the Internet. Even a website that a person has browsed, what you have clicked on, and what to buy will become a reflection of its psychological trace.

Moreover, today's young people online are a necessary and necessary lifestyle. In addition to online shopping and dating, they will also leave a lot of messages, comments, and revealing hearts on the Internet.Because no one would know themselves on the Internet, this lifted their psychological burden and dared to reveal the true thoughts.Online group games, etc. are also an environment that people show their true ideas.Therefore, suicide will show clues in the Internet.In the era of network and artificial intelligence (AI), can they track such grass -snake gray lines for intervention?In fact, AI can make a lot in this regard.

As early as 2012, the Internet psychological crisis (suicide) monitoring and early warning center of the China Academy of Sciences' Behavior Science Key Laboratory was developing an artificial intelligence software for intervention of suicide, and then put into use.The specific method is to collect the words in specific network spaces, such as Weibo and Weibo. Through analysis, people who have suicide ideas tend to be used to automatically give each other with the "psychological map psymap" account to the other party automatically to the other partySend private messages and accurately place assistance information.

Before the Internet era, mental health researchers, friends and relatives must send information from people in the field and surrounding environments to find the clues of some suicors.If some people say "there is no interest in alive", "I have no hope", "If I am not in the world, the situation may be better, will you participate in my funeral?" At this time, it will attract attention and take intervention measures.Essence

However, the Internet era is very different. As long as the specific space in the network can be found, such clues can be found, and AI can be used to analyze it. In the next step, ChatGPT can be involved in intervention to interfere with those who want to commit suicide.This technical foundation is to predict suicide tendencies through machine learning algorithms and then intervene.

In the Internet, people's suicide tendency is easier to express than in reality.According to the survey, 295 words or phrases are involved in suicide in the "suicide related dictionary", such as "tired of life", "next life", "hypnotic pills", "hanging myself" and so on.Therefore, you can use algorithms such as decision -making trees, random forests, logical regression to conduct 10x cross verification to train the AI identification model.

Of course, machine learning must be investigated according to the actual survey.The research team of the Chinese Academy of Sciences divided 982 respondents into 446 high -suicide and 536 low suicide possible groups according to the possibility of suicide possibilities.Differences in language characteristics.The results show that compared with the possible group of suicide groups, the user of the high suicide may be low, more active at night, less attention to others, and more use of negation and death.

The Weibo survey also found that the Weibo of suicide users used more frequently using words that expressed the meaning of exclusion, and there were more negative expressions at the emotional level.

Therefore, the research team of the Chinese Academy of Sciences through model optimization, natural language processing technology, and the software developed by AI technology can reach 84%of the accuracy of identification of those attempts to suicide risks.Since 2012, the team has analyzed more than 30,000 Weibo analysis and found that more than 10,000 individuals with suicide expression have been found.

In fact, if they intervene in the early early intervention, the four suicides may be rescued.Among them, the female suicide posted a photo in the circle of friends at 3 am on the day of suicide, saying "Good night in the world ... I decided to be a sleeping beauty." If suicide intervention software can search in timeInformation, starting positioning and intervention may have a certain effect and help the other three people.Moreover, police investigations showed that one of the four had depression, and this information could also be included in AI intervention.

In real life, nearly 80%of people who have depression and those who want to commit suicide do not know where to ask for help or how to ask for help, and half of them have never sought help.In the asking crowd, the family is not only ranked first, but the proportion is even lower than strange netizens.Therefore, the circle of friends and AI interventions in the Internet world becomes more and more important. This is the needs of the times and should also meet this demand.

The author is Beijing scholar