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The upsurge of artificial intelligence trainer talent incubation project has arrived. Have you come to inspect the project?

"Mass entrepreneurship and innovation" is the strongest voice in the 21st century. Entrepreneurship is the eternal driving force for national development and social progress, while artificial intelligence is an important development strategy in China. As a basic key link in the development of artificial intelligence, data labeling industry is a new opportunity for entrepreneurs/teams to transform and expand their projects.

With the inexorable warming of the weather, the talent training program of artificial intelligence trainer is also in full swing. Every day, bosses from all over the world come to see the project and understand the actual operational situation.

During the project inspection, our project manager also listed the innovative mode of data labeling talent incubation project and the possible problems in the field landing process, and gave relevant suggestions and opinions.

It is worth mentioning that during the conversation, some partners shared their merits, and our project leaders also shared them, so as to make every customer who came to see the project and understand it gain a lot.

I’d like to take this opportunity to give you a service news after the cooperation, that is our partner, Mr. Huang. After studying in the operation department, the project department and the system as a whole, his team has already taken the initiative to register students and the data marking project is too busy. It can be said that it is as busy as a bee.

Win-win cooperation has achieved remarkable results, and quality service promotes value-added. Mr. Huang’s success is inseparable from his own efforts, and also from the efforts of our service partners. Here, I would also like to give a big compliment to our friends in the operation department.

If you also want to have endless data annotation resources.

If you are also in the data labeling industry,

If you are still worried about unprofitable projects, broken files and other issues.

Then, consider joining forces.

Come and visit us.

ChatGPT will have self-awareness in two or three years. How to prevent it from threatening human beings? Zhou Hongyi said so.

"The development of ChatGPT is not a matter of competition among several Internet companies, but determines whether China can accumulate this technology in the next industrial revolution." Zhou Hongyi, member of Chinese People’s Political Consultative Conference and founder of 360 Group, told the Times Weekly reporter.

Zhou Hongyi has been elected as a member of the Chinese People’s Political Consultative Conference Committee for two consecutive years, and "safety" has always been the key word of his proposal. Recently, the great breakthrough of ChatGPT has caused extensive discussion. Zhou Hongyi has talked openly about the development prospect of ChatGPT more than once, and also expressed his concern about the safety of artificial intelligence.

In Zhou Hongyi’s view, ChatGPT or Big Language Model is a milestone in the development of artificial intelligence. It is the starting point of general artificial intelligence and the turning point of strong artificial intelligence, so ChatGPT will bring an industrial revolution driven by strong artificial intelligence or general artificial intelligence.

ChatGPT is not only an enhanced version of search engine, but also more than a chat robot. It will reshape all digital applications and industries through the artificial intelligence services provided by SaaS. Zhou Hongyi said, "In this field, we can catch up."

At the National People’s Congress this year, Zhou Hongyi submitted a proposal, calling on China to catch up with the great leap of artificial intelligence big model technology represented by ChatGPT. People should pay more attention to the innovation mode behind technological breakthrough while paying attention to technological innovation.

Zhou Hongyi, member of Chinese People’s Political Consultative Conference and founder of 360 Group.

Promote the innovation and development of artificial intelligence big model technology

ChatGPT has caused a global heated discussion. This year, Zhou Hongyi proposed a large-scale artificial intelligence model technology represented by ChatGPT.

"We must find the law of industrial development in the research process." Zhou Hongyi said, for example, why is ChatGPT successful in the United States? Why did Americans take the lead in making it? Why can OpenAI and Microsoft cooperate? "Understanding these problems can promote relevant departments to formulate policy guidance conducive to the birth of China version of ChatGPT and promote the integration of universities, scientific research institutions and industrial companies in China." Zhou Hongyi said.

"We can’t just see how high its big model parameters are." Zhou Hongyi emphasized that the most important thing is to maintain a good and open culture of cooperation. In his proposal, Zhou Hongyi summed up three key factors for the success of ChatGPT-firstly, the "Microsoft +OpenAI" collaborative mode of production, research and research, secondly, the open innovation mode based on open source and crowdsourcing, and finally, the ecological innovation mode centered on the general big model.

Source: the creativity of the worm

Zhou Hongyi suggested that it is necessary to establish a collaborative innovation model of "large-scale scientific and technological enterprises+key scientific research institutions", build China’s "Microsoft +Open AI" combination, and lead the big model technology research; From the height of building a national strategic scientific and technological force, we should screen production and research institutions with good technical foundation, form an industrial synergy combination with complementary advantages, and give full play to the research advantages of scientific research institutions in key core technologies; At the same time, we will give full play to the advantages of large-scale scientific and technological enterprises in productization, engineering, scene, commercialization and data, and become the leading leader in tackling key problems and application of large-scale model technology.

He also proposed to support the establishment of a number of long-term open source projects of national artificial intelligence models to create an open and innovative ecosystem of open source crowdsourcing. Zhou Hongyi believes that the artificial intelligence big model should not be an advanced technology monopolized by a few companies, but should give full play to its industrial and social value.

Focusing on how to promote the technological innovation and development of artificial intelligence big model, Zhou Hongyi proposed to set up a number of national long-term projects in an open source mode for multiple technical routes, with "large-scale scientific and technological enterprises+key scientific research institutions" as the leader, and guide universities, scientific research institutions and innovative enterprises to form innovative ecological groups of multiple technical routes through open source, cooperation, crowdsourcing and ecological innovation modes. On the one hand, it can reduce the risk caused by the wrong choice of technical route, on the other hand, it can also avoid the monopoly of technological achievements in the hands of a few institutions and promote greater scientific and technological innovation and industrial development.

Not developing is the biggest insecurity.

ChatGPT drives a wave of entrepreneurial craze. Wang Huiwen, the co-founder of Meituan, Zhou Bowen, the former chairman of JD.COM Technical Committee, and Wang Xiaochuan, the former Sogou CEO, successively announced their retirement and entered this frontier field.

Technology giants have returned to the rivers and lakes, and Internet giants such as Ali, Tencent, Baidu and Byte have made statements one after another, which will increase investment in artificial intelligence. Under the craze, it is only a matter of time before China version of artificial intelligence language model and ChatGPT-like products appear.

OpenAI took the lead in developing ChatGPT. What did it do right?

Zhou Hongyi believes that OpenAI uses a large number of open source algorithms and papers, skillfully combines various open source achievements, and cooperates with Microsoft to solve the problems of engineering, computing power, data, product experience and business model. Secondly, like Apple’s App Store ecosystem, OpenAI cultivates vertical applications based on ChatGPT. In addition, user traffic is also very important, attracting users to use it, and at the same time, it can also feed and debug large language models based on manual tagging reinforcement learning. Finally, OpenAI has a long-term spirit and a pattern to make universal artificial intelligence innovations that change human beings.

In Zhou Hongyi’s view, China Internet companies have strong engineering ability and strong technology landing ability. "Now, ChatGPT has made a sample, based on open source technology, and there are no insurmountable obstacles. The rest is a matter of time." Zhou Hongyi firmly believes that "with the support of the state’s encouraging policies, China can achieve a better level of follow-up in two or three years."

The big model of artificial intelligence language has a high entry threshold, which is mainly reflected in both technology and capital.

Citic jiantou research report pointed out that the evolution of Transformer in network structure has brought about the improvement of parameters and model layers, which has caused the qualitative change of generative AI technical ability; At the same time, the advantage of parallelization allows it to train on a larger data set, which also promotes the development of pre-training models such as GPT.

As for why ChatGPT can answer questions, Zhou Hongyi told Times Weekly that the training materials for ChatGPT are very important. He pointed out that people mistakenly thought that since robots are chatting with people, they should learn chat materials. In fact, the chat materials generated by social tools have low knowledge content.

"When we chat, no one is talking about knowledge, but they are all lifting each other’s poles. There are many wisecracks and nonsense words." He explained that the chat robot trained in this way is more than "artificial mental retardation" or "artificial leverage", and the dialogue is illogical.

ChatGPT avoids this kind of corpus, just as a person is not necessarily good at expressing, but he is full of poetry and books, expressing elegance and logic, and everyone is willing to chat with such people. Zhou Hongyi emphasized that it is very important to feed ChatGPT with high-quality corpus.

Tuchong creativity

Artificial intelligence technology promotes social progress and also hides risks.

Zhou Hongyi is worried that if ChatGPT is allowed to input corpus without limitation, and get knowledge of searching and browsing the Internet at will, will the self-conscious GPT have the idea of being hostile to human beings after watching movies like Terminator?

After consciousness, ChatGPT may evolve into "eyes", "ears", "hands" and "feet" in the second step. At present, GPT has only "brain". If you add "eyes" and "ears", you can understand all kinds of images and videos of human beings and understand all kinds of audio, knowledge storage will advance by leaps and bounds, and the level of intelligence will also be greatly improved.

In the future, when ChatGPT accesses the API of the Internet and enters the era of the Internet of Everything, it is undoubtedly equivalent to having "hands" and "feet" and indirectly having the ability to control the world. By then, ChatGPT can not only buy air tickets on the webpage, but also take taxis, order takeout, and even manipulate various IoT devices through the webpage.

Finally, ChatGPT may be able to evolve itself. At present, ChatGPT can only write some simple codes. One day, when its code ability is improved, can it automatically look up its own code, correct the upgraded code, or even recompile a new version? If so, it will have the ability of self-learning and evolution, and realize the prospect of robot manufacturing robots.

Zhou Hongyi insists that the biggest insecurity is not developing artificial intelligence. "Whether humans will therefore go into destruction remains to be seen. However, we can’t stop developing technology, but know where the bottom line and boundary of technology are, so as to regulate the development of technology in the right direction. " Zhou Hongyi said.

Football is exciting for 1 night! Mbappé offered a winner, the Serie A champion was announced in advance, and Real Madrid reversed the sword and pointed to the Champions League.

Over the weekend, the five major leagues in Europe continued. Manchester City beat Crystal Palace away in the Premier League, narrowing the gap with Arsenal. In Serie A, Napoli beat Atalanta, once again expanding its lead. The suspense of the championship in Serie A ended ahead of schedule. In French League, Paris Saint-Germain, which was eliminated in the Champions League, was hit again. La Liga Real Madrid reversed its victory and aimed at the Champions League knockout.

Crystal Palace 0-1 Manchester City

Crystal Palace suffered a trough, with 10 consecutive games unbeaten, and Manchester City won three consecutive games. This season, Manchester City is 5 points behind Arsenal in the Premier League. Manchester City will compete with Leipzig Red Bull for the Champions League quarter-finals in the second round of the Champions League quarter-finals next week, and Guardiola will be somewhat distracted from the Champions League. Crystal Palace has defeated Manchester City twice in the last 10 encounters.

In the game, Harland missed the opportunity in the first half, Alvarez repeatedly made risks in the second half, and Harland scored some achievements. In the end, the whole game was over, and Manchester City went away to the Crystal Palace 1-0. In terms of standings, Manchester City scored 61 points in the first game and 2 points behind the top Arsenal, while Crystal Palace still ranked 12th with 27 points.

Naples 2-0 Atlanta

Napoli’s winning streak was ended by Lazio in the last league round, but it still leads by 15 points, and it is in an absolute leading position for the championship. Next week, in the second leg of the quarter-finals of the Champions League, Naples will play against Frankfurt at home, and this season, Naples is soaring in two lines. Atlanta ranked sixth, five points short of the top four, and Atlanta won more and lost less in the confrontation with Naples.

In the game, Napoli dominated in the first half, but failed to break the deadlock. In the second half, Kvaratskheliya scored a wonderful goal and Lamani headed the ball. In the end, Napoli led the standings with 18 points in Atlanta 2-0.

Brest 1-2 Paris Saint-Germain

Paris Saint-Germain was beaten by Bayern both at home and away in the last 16 of the Champions League, and fell to the last 16 for two consecutive seasons, which greatly damaged the team’s morale. Messi was questioned by fans, and Mbappé also had the idea of leaving the team. The Qatari consortium invested more than 1.4 billion euros in the acquisition of Paris Saint-Germain in the past 11 years, but it failed to win a Champions League trophy and only reached the Champions League final once. Although there is no pressure to win in Ligue 1, Paris Saint-Germain is facing reconstruction.

In the game, Sohler scored the first goal after the middle frame in the first half, Aunola equalized the score, Messi assisted in the second half, and Mbappé scored a winner. In the end, Paris beat brest 2-1 away, and Paris won four consecutive victories in the league. In terms of standings, Paris ranked first with 66 points, 11 points ahead of Marseille, the second place.

Real Madrid 3-1 Spaniard

Real Madrid’s recent state continues to be sluggish, and various events have been unbeaten for three consecutive games. The first leg of the semi-final of the King’s Cup of Spain was defeated by Barcelona, and La Liga suffered two consecutive draws. Barcelona has already opened the gap of 9 points in the standings. In the middle of next week, Real Madrid will play against Liverpool at the Bernabeu Stadium. In the first leg, Real Madrid beat Liverpool 5-2 away and took the lead in the knockout round of the top 16.

Real Madrid’s home game against Espanyol has maintained a nine-game winning streak, and it has been unbeaten for 26 consecutive games, occupying an absolute advantage and creating a 27-year record. The last time Real Madrid lost to Espanyol at home was back in 1996. In the first half of the game, Jose Lu took the lead in breaking the goal, and courtois contributed to the key save. vinicius and Militang successively broke the goal to help the team complete the overtaking. In the second half, Rodrigo hit the crossbar with a free kick, Gabriel came off the bench but was injured, and asensio scored a single goal in stoppage time to kill the game. At the end of the game, Real Madrid 3-1 Spaniard.

Martin Sr: I was moved by Messi’s America’s Cup speech. The save against Muani was the best in my career.

Live on March 11th, emiliano Martinez recently accepted an exclusive interview with Goal Net. He said that Messi’s speech before the Copa America final almost made him cry, and that the last-minute save in the World Cup final might be the best save of his career.

Martinez said: "Messi’s speech before the America’s Cup final really touched me. I really felt like crying because Messi mentioned my daughter. My wife gave birth to our daughter 10 days before the America’s Cup final, so Messi mentioned’ Martinez hasn’t even met his newborn daughter, just to be with us, so we have to make sure to win this championship for him’. Macy said these words … which really gave you goose bumps. For me, it was a wonderful beginning of that day. "

When talking about saving Muani in the final stage of the World Cup finals, Martinez said: "When I lie in bed and close my eyes, I will think,’ What if that goal is scored? I couldn’t dwell on it during the game because everything happened so fast. After Lori kicked out, we headed back, konate kicked out again, and then suddenly Muani got the chance to face me alone. Under normal circumstances, I would attack, but I was calm at that time, and I chose to wait for Muani. "

"I put a little pressure on it, and you can see my left arm and left foot reaching near the post, because I’m praying that the ball will go there. I didn’t move my face. I closed my eyes and said to myself,’ Please hit me’, and it did. "

"I haven’t moved my face. If the ball hits my nose, it will be better, you know, so as to ensure that it doesn’t fly into the goal. This may be the best save in my football career."

Firmino, a free agent, has become a hot commodity in the transfer market and has received six invitation contracts.

Brazilian striker firmino announced earlier that he will leave Liverpool after his contract expires this summer. According to the news reported by Jorge Nicola, a famous Brazilian journalist, firmino has received offers from six European teams. The 31-year-old Brazilian striker has a good chance to stay in Europe.

After firmino publicly announced that he would leave the team this summer, it was widely rumored that firmino would return to play for Bajia team Corinti An, but Jorge Nicola later broke the news: "Now six European heavyweight teams have offered invitations to firmino, and it can be expected that he will stay in one of the important leagues in Europe and play for an important team next season."

Although Jorge Nicola didn’t disclose the specific names of these six "heavyweight" teams, CBS website indicated that Atletico Madrid, Inter Milan and galata Sharay were three of them who wanted to sign firmino, while Atletico Atletico and Saudi powerhouse Ainas had both been rumored to be interested in firmino.

You must watch this game tonight! Live broadcast on the big platform! The results of the first two games bode well for Guoqing.

At 18: 00 this evening, Beijing time, China U20 will compete with South Korean U20 for a semi-final spot in the U20 Asian Cup, which is actually a qualification for the World Youth Championship. You know, the last World Youth Championship that the National Youth Team participated in dates back to the 2005 World Youth Championship in the Netherlands, so the impact of the China team on the World Youth Championship tonight is particularly worthy of the attention of China fans. In other words, China fans must watch this game!

Tonight’s game, the time is also very suitable, fans can eat rice while watching the game. Aiqiyi, Migu, Know the Ball Emperor and other platforms all have live broadcast signals, which brings convenience for fans to watch the ball. Fans can watch the live broadcast on the computer or mobile phone screen (screen TV is also acceptable) and wave the flag and shout for the China teenager! CCTV didn’t broadcast the men’s U20 football match live, but broadcast the women’s U20 football match live, which from another angle can also stimulate China teenagers to fight hard tonight!

Unlike the World Cup, the World Youth Championship is not the top team in the world, but it is very strong. For example, Argentina won the FIFA World Cup Qatar 2022 championship last year, and its youth team (namely Argentina U20) was eliminated in the World Youth Championship in South America. Argentina is the second-ranked team in the world! By the same token, the strength of the Korean national team is obviously higher than that of the China national team, but the level of its U20 team may not be much higher than that of China. Therefore, the China boy must have confidence tonight.

It is particularly worth mentioning that in the two quarterfinals of the U20 Asian Cup last night, Iraq beat Iran 1-0 at the last moment of the game. Four hours later, Uzbekistan, the host country, also beat Australia in the penalty shootout and got the second ticket to the top four. You know, the Iranian and Australian national teams are frequent visitors to the World Cup, while the Iraqi national team is less powerful, and the Uzbek national team has never made it to the World Cup. Therefore, the results of the first two games are also an encouragement to China U20, which seems to indicate that China can also eliminate the South Korean team tonight.

Think about how China U20 beat Saudi Arabia 2-0 in the group stage, and the boys will know how to play tonight. The South Korean team has always despised the China team in football. If they still have this inertia tonight and make the mistake of underestimating the enemy, the chances of the China teenager will be even greater. Argentina underestimates its enemy and can lose to Saudi Arabia in the World Cup. If South Korea underestimates its enemy, it is of course reasonable to lose to China! Come on, Guoqing! Come on, China boys!

Artificial intelligence replaces manual labor, uses machine learning to carry out scientific research and match the best alloy!

A large group of researchers found that machine learning can be used to help metallurgists find the best metal mixture to make the required alloys. In this way, they found an alloy with a thermal coefficient lower than that currently recorded.

The research was carried out by scientists from Max Planck Institute for Iron Research, who cooperated with colleagues from darmstadt University of Technology, Delft University of Technology and Royal Institute of Technology.

For thousands of years, people have been mixing metals according to their own needs and learned a lot about alloy manufacturing. But finding the right combination always requires some inspiration, patience and luck.

Therefore, most alloys are made from a single base metal (such as iron), and the obtained characteristics are observed by adding a small amount of other metals.

However, in the past few decades, the situation has begun to change-some researchers have begun to make alloys containing several metals in equal parts.

Of course, it is much more difficult to make this alloy with specified characteristics. In this new work, researchers apply machine learning to help this process. They first reduced the test space to only one application-making alloys that will not expand and contract too much when exposed to temperature changes.

In order to create a machine learning application, researchers searched and found metal features that can be used for comparison purposes, and then trained their systems using the information in the currently available databases. In the process, they developed a process to find an alloy suitable for the required goal.

The team’s process was reduced to three main steps: First, they created a new mixture using a model based on information stored in a database describing metal characteristics. Then, they use the second model to help predict the properties of some alloys they created in the first step. The last step is to study the candidate alloys produced by the system and select some of them for practical testing.

Using this system, the researchers obtained 1000 candidates, which were narrowed down to three alloys. Then, they made three kinds of alloys using the mixture described in the system and tested their physical properties.

The team used data from real alloys to train the system and repeated the whole process. They chased it for seven times and found an alloy with a thermal coefficient lower than the current record.

In their paper published in the journal Science, the team described their three-step process and its performance in the test. Scientists from the Institute of Metals, Chinese Academy of Sciences published an article on the prospect in the same issue, describing the work done by the team on this new project.

Reference: https://techxplore.com/news/2022-10-machine-optimal-mixture-metals-desired.html.

How can Messi stay in Greater Paris?

In 2023, the Greater Paris Champions League once again became 16 Lang, which is quite sad!

Special size World Cup golden balls and golden boots, is that the level?

No!

Messi’s vision, passing and dribbling are still the top in the world!

Mbappé’s shot, in that year, was still heavy, and he also improved his dribbling skills …

Neymar was in its prime, and Ramos was still domineering. Such a powerful Paris has repeatedly suffered setbacks, which puzzled many readers!

In fact, although Greater Paris is rich, its layman leads the expert, which is the root of the team’s failure!

If they don’t change, Messi and Mbappé will leave!

[Appreciation of AI Painting Works-Antique] The first attempt to use AI painting, the effect is shocking

AI painting, that is, artificial intelligence painting, has broken through the limits of human beings, thus allowing painting analysis to enter a broader field of vision with humanistic spirit as the starting point and the foothold. Through artificial intelligence, a new field of painting art is opened. Artificial intelligence painting is usually mysterious, gorgeous, deep, complex and has a strong sense of the times, reflecting extraordinary imagination. Symbolizes the future development direction of painting.

As we all know, the level of AI has now reached a terrible level. AI painting is very popular recently, and the author himself has tried it, and the result is really surprising.

After thinking, I chose the tone of ancient style and tried to do the first AI painting.

The final output results are really surprising, and individual photos have reached the point where it is difficult to distinguish between true and false.

(As I am a beginner, I am not proficient in the use of AI painting software, and the computer equipment used is relatively old, so I only output the above four pictures.)

What picture should AI draw next time? You are welcome to leave comments, and I will try my best to meet your requirements.

The registration of the Society Competition 2008 2023 Global Artificial Intelligence Technology Innovation Competition was officially launched.

The registration channel for the 2023 Global Artificial Intelligence Technology Innovation Competition was officially opened! The contest was co-sponsored by China Artificial Intelligence Society and Yuhang District People’s Government of Hangzhou, undertaken by Zhejiang Hangzhou Future Science and Technology City (Haichuang Park) Management Committee, and co-organized by Beijing Iron Man Technology Co., Ltd. Based on an international perspective, the competition will focus on cutting-edge technology and application innovation, promote academic exchanges, personnel training, technological development and cross-border application and integration in the field of artificial intelligence, and build a talent exchange platform and industrial ecosystem for artificial intelligence.

Algorithm challenge

Track 1: imaging NLP-medical imaging diagnosis report generation

Track 2: Giga Rendering-A New Perspective Rendering Based on a Billion Pixel Sparse Image

Hardware challenge

Track 1: Service Robot Competition for the Elderly

Track 2: Deep Learning Smart Car Competition

Track 3: unmanned competition

Algorithm challenge

Track 1: It is divided into four stages: registration-team formation, preliminary, semi-final and final.

Sign up & Team up (March 10th–April 20th)

The opening time of the registration system is 10:00 Beijing time on March 10th, 2023, and the deadline is 12:00 noon on April 20th, 2023.

Preliminaries (March 21st–April 21st)

Rematch (April 28th–May 19th)

Final (June 9)

Track 2: It is divided into three stages: registration-team formation, online competition and final competition.

Sign up & Team up (March 10th–May 4th)

The opening time of the registration system is 10:00 Beijing time on March 10th, 2023, and the deadline is 17:00 Beijing time on May 4th, 2023.

Online Competition (March 10th–May 10th)

Final (June 9)

Hardware challenge

Registration & Team Building (March 10th-May 20th, 2023)

Final (June 6-June 9, 2023)

Competition official website: https://gaiic.caai.cn/

Algorithm challenge

Event e-mail:

Track 1 data@tsinghua.edu.cn

Track 2 challenge@gigavision.cn

QQ group for event exchange (choose one):

Track 1 566353409/75834321

Hardware challenge

Event Email: bd@artrobot.com

Event exchange QQ group:

Track 1 558080765

Track 2 558719690

Track 3 480558608

04 tournament award

Algorithm challenge

The total prize money of the competition is 850,000-920,000 RMB, and all prizes are pre-tax.

Hardware challenge

The total prize money of the competition is 400,000 RMB, and all prizes are pre-tax.

Champion: 20,000 yuan/team, and the instructor 10,000 yuan/team.

Runner-up: 15,000 yuan/team and 8,000 yuan/team for the instructor.

Third runner-up: 10,000 yuan/team, and the instructor is 5,000 yuan/team.

First prize: 3,000 yuan for each team and 2,000 yuan for each instructor, a total of 5 teams.

Second prize: 2000 yuan per team, a total of 10 teams.

Third prize: 1000 yuan for each team, a total of 15 teams.

* The above is the award setting of a single event, and there are three events in the hardware event.

Other awards:

Creative Award: 4,000 yuan/team, totally 4 teams.

05 media cooperation