标签归档 阿拉 后花园 龙凤

Brief introduction of Artificial Intelligence (AI)

The development history of Artificial Intelligence (AI) can be traced back to 1950s. The following are the main stages of the development history of AI:

  1. Logical reasoning and problem solving (1950s-early 1960s): The early AI system was based on symbolic logic, and solved problems through logical reasoning of facts and rules. However, this method has limitations, and it is difficult to deal with a large number of uncertain and fuzzy information.
  2. Machine learning and pattern recognition (1960s-1980s): The research of AI began to turn to machine learning and pattern recognition. Machine learning is a method to learn and optimize algorithms by training data, while pattern recognition is a method to realize intelligence by identifying and classifying patterns. These methods have been widely used in image recognition, speech recognition and natural language processing.
  3. Expert system and knowledge representation (1980s-1990s): AI research began to pay attention to expert system and knowledge representation. Expert system is an intelligent system based on expert knowledge and inference rules, which can simulate the decision-making process of human experts. Knowledge representation is a method to organize knowledge and information into a form that can be processed by computer, and it is an important foundation to realize AI.
  4. Statistical learning and deep learning (1990s-2010s): With the continuous development of computer hardware and algorithms, AI research began to pay attention to statistical learning and deep learning. Statistical learning is a machine learning method based on statistical model and data analysis, which can handle a large number of data and complex nonlinear relationships. Deep learning is a machine learning method based on neural network, which can handle more complex and high-dimensional data.
  5. Self-learning and multi-modal AI(2010 to present): AI system is gradually realizing the ability of self-learning and self-optimization, and can continuously improve its own model and algorithm according to feedback and data. Multi-modal AI is an AI technology that can handle a variety of data types and perceptual information, including images, voices, texts, etc., and can realize more comprehensive and intelligent human-computer interaction.

Important events:

  • In 1956, the concept of artificial intelligence was put forward at Dartmouth Conference, which marked the birth of AI.
  • In 1962, Arthur Samuel developed a self-learning program, which was an early application of machine learning.
  • In 1969, Marvin Minsky and Seymour Papert published Perceptrons, which revealed the limitations of single-layer neural networks and promoted the development of neural networks.
  • In 1975, John Holland developed genetic algorithm, which is an optimization algorithm that imitates the process of biological evolution.
  • In 1981, Japan launched the first commercial robot WABOT-1.
  • In 1997, IBM’s deep blue supercomputer defeated Kasparov, the world champion of chess, indicating that computers can surpass human intelligence in some fields.
  • In 2011, IBM’s Watson artificial intelligence system defeated human players in the program "Dangerous Edge".
  • In 2016, AlphaGo defeated Li Shishi, the world champion in the Go competition, marking an important step in the application of artificial intelligence in complex games.
  • In 2018, the GPT-2 model developed by OpenAI made a major breakthrough in the field of natural language processing, which can generate high-quality natural language texts.

The latest development trend:

  1. Self-learning: AI system is gradually realizing the ability of self-learning and self-optimization, and can continuously improve its own model and algorithm according to feedback and data.
  2. Deep learning: Deep learning is a machine learning method based on neural network, which can handle a large number of data and complex nonlinear relationships, and is one of the main trends of current AI development.
  3. Artificial intelligence chip: Artificial intelligence chip is a chip specially designed for AI application, which can realize efficient calculation and data processing and is an important technical support for AI popularization and application.
  4. Multi-modal AI: Multi-modal AI is an AI technology that can handle a variety of data types and perceptual information, including images, voices, texts, etc., and can realize more comprehensive and intelligent human-computer interaction.
  5. AI and Internet of Things: The combination of AI and Internet of Things can realize more intelligent and efficient automatic production and management, including intelligent energy, intelligent transportation, smart home and other fields.
  6. AI Ethics and Law: With the continuous development and application of AI technology, AI ethics and legal issues have attracted more and more attention, including privacy protection, data security, and responsibility distribution.

In short, the development trend of AI technology is diverse, involving algorithms, chips, data and applications. In the future, AI technology will continue to develop and apply in depth, bringing more convenience and innovation to mankind.

No Messi? Mbappé went too far, and the fans shouted: The pattern is too small, and Messi hurried away.

Paris Saint-Germain has just been out of the Champions League, missed the quarter-finals for two consecutive seasons, and immediately ushered in the 27th round of Ligue 1, and went to the away game against relegation team brest. In this game, Paris didn’t finish the winner until the 90th minute, and narrowly missed 3 points. However, Mbappé’s forced shooting made Messi very unhappy, and fans shouted that Messi should not renew his contract, so let’s go in the summer window.

There is a huge gap between the two teams’ paper strength, and Paris Saint-Germain mainly forms a siege. In the 37th minute, Mbappé’s powerful shot outside the restricted area was saved, and Sohler succeeded in making up the shot. However, before the end of the half-time, there was a serious loophole in the defense of Greater Paris, and Ramos watched Aunola equalize.

In the 62nd minute, there was a controversial scene. At that time, Fabian Ruiz made a direct pass to the restricted area, Messi took advantage of the situation to make the ball, and Mbappé rubbed his right foot and kicked the ball out of bounds. It is not difficult to see from the slow motion that Messi was speechless and bowed his head and left directly.

Why is Messi disappointed? The reason is very simple. We can easily see that Messi was in an unguarded state when Mbappé kicked off. If Mbappé chooses to cross, the high probability will turn into a goal.

Although a good striker is fed by bullets, it is understandable that Mbappé is unique as a striker. But Messi has no one to defend and doesn’t pass the ball. It’s really too much.

This season, Mbappé signed a super contract, and he also has the power to surpass the players. When a teammate doesn’t pass the ball to him, Mbappé will express his displeasure in public. However, when Mbappé has a chance to kick, his eyes are often only on the goal, and he will not pass the ball to Messi and Neymar most of the time.

In the 90th minute, in the backcourt of Paris, the ball was broken to fight back. Messi put his leg in place and sent a precise straight plug to assist Mbappé to score a goal, which was the 300th assist in Messi’s club career.

There is no harm without comparison, and many fans feel unworthy for Messi. A fan said: "Mbappé only has himself and data in his eyes. What is the difference with his idol Cristiano Ronaldo?" There are also fans who commented: "The pattern of Mbappé is too small, and I don’t know how to reciprocate at all. It will be difficult to achieve great things in the future."

As we all know, Messi has previously rejected the salary reduction and contract renewal in Paris, and he is likely to leave the team this summer. Therefore, some fans said that as long as Mbappé stays in the team, no matter how strong Messi is, he is just a tool for director Tim to brush data and compete for the Golden Globe Award. In this case, it is better to leave early, and there is no need to continue to suffer indignities!