Li Guojie

1. China’s informatization and information infrastructure construction

“Informatization drives industrialization, and industrialization promotes informatization” has been determined as the key to China’s development One of the basic strategies of the economy. So far, the Chinese government has identified 12 key informatization projects, called "golden projects", including office business resources, macro policy management, taxation, customs, finance, financial supervision, social security and other information systems. my country's informatization The project has achieved remarkable results. In recent years, China's informatization level has improved significantly. According to statistics from the "Global Information Technology Report 2003" released by the World Bank, China's information technology comprehensive indicators ranked 43rd among 83 countries in the world, an increase of 21 places from the previous year. China's information infrastructure ranked 35th in the world. Bit. In terms of the scale of information infrastructure, China ranks among the top in the world. In 2002, the number of fixed and mobile phone users in China exceeded 200 million, with the total number of users reaching 420 million, ranking first in the world; the number of networked computers reached 20.83 million, and the number of Internet users exceeded 59.1 million, ranking second in the world. China's informatization has a low starting point, but its development speed is very fast. In the past five years, the national telephone penetration rate has increased from 8.1% in 1997 to 33.7%, and the international Internet export bandwidth has expanded from 18.6Mbps in 1997 to 9.4Gbps. The people are getting more and more benefits from information construction.

China is a developing country with a vast territory and a large population. Measured by per capita indicators, China's informatization level still lags far behind that of developed countries. China is implementing informatization construction under the condition that industrialization has not yet been completed. The informatization path it takes is different from that of developed countries. We pay special attention to the transformation and improvement of traditional industries through information technology. In order to establish a unified national informatization indicator system, the National Informatization Evaluation Center was established in 2002 and announced the "Composition Plan for the Informatization Indicator System of Chinese Enterprises", including the coverage of informatization means of information collection, Internet marketing application rate, financial 21 basic indicators such as final accounting speed and several evaluation indicators and performance indicators. These indicators are formulated based on China's reality. They are information indicators oriented towards direct and long-term benefits and are of great significance in guiding my country's information construction.

2. Current Situation of China’s Information Industry

In the past five years, including the past two years when the global information industry has been in recession, China’s information industry has maintained a high annual growth rate of more than 25% in sales revenue. Thrive. In 2002, the sales revenue of electronic information products reached 1.4 trillion yuan, ranking first in the national industrial sector. It has become my country's first pillar industry, and its industrial scale ranks third in the world. Among them, the output of color TVs and program-controlled switches ranks first in the world. The added value of my country's information industry accounts for 5.7% of the gross domestic product (GDP) from 2.3% in 1997. There are currently 11 electronic information companies with a turnover of more than 10 billion yuan, of which two have exceeded 60 billion yuan. Internationally competitive industrial clusters have been formed in the Yangtze River Delta, Pearl River Delta and other regions. China is becoming an important processing base for global electronic information products.

China's communications industry began in the mid-1990s when the HDJ-04 large- and medium-capacity program-controlled telephone exchange broke foreign monopoly. Many communications companies known as "Great China" achieved collective breakthroughs. The proportion of domestically produced office switches has reached over 85%. The manufacturing of mobile communication products has achieved breakthroughs from scratch and from small to large. The domestic market share of domestic mobile switches, base stations and mobile phones has reached 50%, 70% and 30% respectively. Huawei has become a communications equipment supplier with important global influence and the largest optical network equipment supplier in the Asia-Pacific region. Its products have occupied certain overseas markets. China's computer industry, represented by Lenovo, has embarked on a path of incremental innovation that is in line with national conditions, that is, the development path of "trade, industry, and technology." At present, domestic microcomputers have occupied the vast majority of the domestic market with annual sales of more than 10 million units. The market share of domestic servers and notebooks has also increased significantly.

In 2000, the State Council promulgated “Several Policies to Encourage the Development of the Software Industry and the Integrated Circuit Industry” (i.e. Document No. 18), which effectively promoted the development of the software and integrated circuit industries. In the past two years, software turnover has maintained an annual growth rate of more than 30%. In 2002, the software industry revenue reached 110 billion yuan. There are 11 nationally recognized software industry bases, and there are more than 6,000 recognized software companies nationwide. China's software products that are highly competitive in the market are mainly financial, education, anti-virus, Chinese processing and other software. A large number of application software has also been developed in many application fields such as taxation, railways, customs and so on. The "Action Program for Revitalizing the Software Industry" announced in 2002 determined the development goals of my country's software industry as follows: software market sales in 2005 will reach 250 billion yuan, the domestic market share of domestic software and services will reach 60%, and software exports will reach 5 billion. Yuan, several software companies with sales exceeding 5 billion Yuan have been formed, and the number of software professionals has reached 800,000.

In the past two years, several 0.18 micron integrated circuit production lines have been built in China, and the number of integrated circuit design companies has increased from more than 100 two years ago to more than 400. In 2002, integrated circuit output increased from 1.3 billion units in 1997 to 8.5 billion units.

National integrated circuit industrialization bases, i.e. incubators of the integrated circuit industry, have been established in seven cities: Beijing, Shanghai, Shenzhen, Wuxi, Xi'an, Chengdu and Hangzhou. my country's integrated circuit industry chain has basically been formed. Production, packaging, testing and design companies in the United States, South Korea and Taiwan have established wholly-owned and joint ventures in China. China will gradually become the design and processing center of the world's IC industry. By 2005, my country's integrated circuit output will reach 20 billion units. It is estimated that my country's integrated circuit output in 2010 will be 50 billion units, and the output value will reach 200 billion yuan, accounting for 50% of the domestic market and about 5% of the international market.

3. The main achievements of China’s information high-tech research

(1) The layout of the 863 program in the information field

The main manifestations of state-supported high-tech research are as follows: Project 863 started in 1986. During the Tenth Five-Year Plan (2001-2005), the 863 Plan invested more than 4 billion yuan in the information field and established four themes: computer software and hardware, communications, information acquisition, and information security technology. The main research directions of computer topics are computer architecture, next-generation Internet, computer software, intelligent Chinese information processing, multi-mode human-computer interface, and major demonstration applications. The main research directions of communication topics are new generation information networks, optical communications and personal communication technologies. The main research directions of the information acquisition topic are optical earth observation, microwave earth observation, advanced earth-to-space observation, satellite navigation and positioning, earth observation data processing and analysis, and spatial information application. The main research directions of information security topics are key technologies of national information security infrastructure, security supervision, information security demonstration projects and new information security technologies. Each theme is mainly engaged in forward-looking key technology research.

In addition to the above four themes, more than half of the funds in the information field of the 863 Program are invested in several major projects such as integrated circuits, high-performance computers, and high-performance broadband information networks. Specialized integrated circuit projects include the development of key equipment such as photolithography machines, new semiconductor materials, and the design of CPU and system-on-chip (SoC). The software special project focuses on the development of safe and reliable operating systems, desktop office systems, database systems and various middleware with independent intellectual property rights. The high-performance computer project mainly develops grid-oriented super servers and grid software, and establishes a demonstrative national grid system. The goal of the high-performance broadband information network project is to establish a high-performance, wide-area broadband demonstration and verification network suitable for real-time transmission of streaming media such as Internet TV, called 3Tnet, focusing on T-bit intelligent optical networks and T-bit WDM optical transmission. and key technologies for system equipment such as T-bit routers. At present, the above-mentioned themes and special research are being carried out smoothly and have achieved phased results.

(2) Several major achievements in communication high-tech research in recent years

2.1 The third generation mobile communication standard TD-SCDMA

China in June 1998 On behalf of China, the Institute of Telecommunications Science and Technology proposed the TD-SCDMA third-generation mobile communication technology standard to the ITU (International Telecommunications Union), which was approved as an international standard by the ITU in May 2000. In March 2001, this standard was accepted by 3GPP (Third Generation Mobile Communications Partnership Project) and truly became one of the options for the construction of the global third generation mobile communications network. In order to cooperate with the submission of TD-SCDMA standard technical specifications, the Telecommunications Science and Technology Research Institute and Datang Group have done a lot of system-level and link-level simulation work.

The success of the TD-SCDMA standard has made important contributions to the development of the world's third-generation mobile communications. Its key technologies, smart antennas and software radios, have been identified by the ITU as technologies that need to be used beyond 3G. . At the same time, TD-SCDMA, as a technical solution with independent intellectual property rights, will also provide a rare opportunity for my country's mobile communications industry to reverse the passive situation of patented technology being controlled by others and achieve leapfrog development. So far, Datang Group and other units have applied for more than 30 patents on the TD-SCDMA standard in more than 20 countries. Compared with other mobile communication technologies, TD-SCDMA has outstanding advantages such as high spectrum utilization, flexible spectrum use, strong ability to support asymmetric services, low system cost, and strong foresight. It is expected that Datang will launch a complete set of TD-SCDMA system equipment and terminal products by the end of 2003.

2.2 High-speed Internet Test Network and 3G System

In order to develop the next generation of Internet technology, Chinese scientific and technological workers have carried out fruitful scientific research, the most influential of which is the support of the 863 Project China High-Speed ??Information Demonstration Network (CAINONET) and China High-Speed ??Internet Research Test Network (NSFCNET) supported by the National Natural Science Foundation. The main goal of CAINONET is to use self-developed optical cross-connect equipment, optical splitting and multiplexing equipment, core routers and network management systems to establish a network connecting some important scientific research institutes and famous universities in Beijing (***13 test nodes) Demonstration network based on IP and DWDM. The total investment in this project exceeds 160 million yuan, and the task is jointly undertaken by more than 40 units including Datang Telecom, Julong Communications, Wuhan Academy of Posts and Telecommunications, Tsinghua University, and Beijing University of Posts and Telecommunications. After more than two years of hard work, the task was completed at the end of September 2001 and passed the acceptance inspection.

CAINONET is one of the few large-scale broadband high-speed test demonstration networks in the world. It mainly uses its own technology to successfully develop all-optical communication networks, high-speed core routers and other key equipment and network management systems, and successfully develops 16 (32) × 10Gbps SDH wave. Multiplexing system. This research has resulted in more than 50 patent applications, marking that our country has fully mastered the key technologies of high-speed information networks. Another high-speed Internet research and test network in China, NSFCNET, was undertaken by Tsinghua University and other units and was put into trial operation in September 2000. The transmission rate of NSFCNET is 2.5-10Gbps, and it realizes connection with the international next-generation Internet (Internet2).

In June 2000, my country successfully developed a practical third-generation mobile communications (3G) field experimental system that meets the needs of the domestic market, including WCDMA, TD-SCDMA, and CDMA2000 that meet international standards. Wireless network access, core network and terminal equipment, this project has applied for nearly a hundred international and domestic patents. 3G systems will be promoted in China in the next few years. In the past two years, Wireless LAN based on Ethernet technology has developed rapidly in my country and has become a major competitor of 3G technology.

2.3 Optoelectronic devices

my country’s optoelectronics technology has a good foundation. The Chinese Academy of Sciences has five research institutes in the field of optoelectronics and has now formed an optoelectronics research group. Wuhan Academy of Posts and Telecommunications is internationally competitive in optical fiber communication technology. With the support of national scientific research programs such as 863, my country's optoelectronics technology has developed rapidly, and cities such as Wuhan, Changchun, and Guangzhou are building "optical valleys."

my country's synchronous digital sequence (SDH) optical transceiver modules have reached the technical specifications of similar products in the world; dense wavelength division multiplexers, optical circulators, optical isolators and CATV optical transmitters/receivers have begun to enter the market. scale production. In 2000, the successful development of optoelectronic devices such as high-performance quantum well GaInNAs/GaAs lasers brought my country into the forefront of international research on low-dimensional material quantum wells and quantum dot devices. Domestic DWDM systems have formed an industry, and several provinces such as Guangdong and Zhejiang have begun the construction of 16×2.5Gb and 32×2.5Gb DWDM systems. my country has established 6 optoelectronic achievement transformation industrial bases in Beijing, Wuhan, Shijiazhuang, Shenzhen, Changchun and Shanghai. It has mass-produced more than 10 optical communication devices, accounting for 30% of the domestic market. Semiconductor lasers have entered the international market.

(3) Several major achievements in my country’s computer and IC high-tech research in recent years.

3.1 Research on high-performance computers and grids

China has been developing computers since the late 1950s and has continued uninterruptedly for more than 40 years. The development of high-performance computers has reached international advanced levels. level. The Institute of Computing Technology of the Chinese Academy of Sciences is the earliest unit in my country to develop large-scale general-purpose computers and is known as the cradle of my country's computer industry. In recent years, the Computing Technology Research Institute of the Chinese Academy of Sciences has successfully developed the Sugon-1 multiprocessor, Sugon 1000 large-scale parallel machine, Sugon 2000 and Sugon 3000 super servers, which have been sold to bioinformatics, petroleum, meteorology, taxation, schools through Sugon Company. and many other industries, driving my country's high-performance computer industry. Sugon super servers have sold more than 200 sets, and their total computing power has reached tens of trillions of operations per second. The 400 billion times per second Shuguang 3000, which was successfully developed in early 2001, is mainly used for sequencing and analysis of the rice genome. It has made important contributions to Chinese scientists being the first in the world to draw block diagrams and detailed maps of the rice genome. The Sugon 4000L massive information processing system, successfully developed in 2003, has a peak speed of more than 4 trillion operations per second and a storage capacity of more than 200TB. In addition to the Institute of Computing Technology of the Chinese Academy of Sciences, the National Parallel Computer Engineering Center and the National University of Defense Technology are the main forces in the development of high-performance computers in my country. The Sunway parallel computer developed by the National Parallel Computer Engineering Center in 2000 was installed in the National Meteorological Center and the Shanghai National High Performance Computing Center, with a peak speed of 384 billion operations per second. The Galaxy-III parallel supercomputer successfully developed by the National University of Defense Technology in 1997 adopts a scalable distributed shared storage parallel processing structure, and its peak speed has reached 13 billion floating point operations per second. These two units have high scientific research and engineering levels and are capable of developing parallel machines with more than 10 trillion operations per second.

my country has started research on grid technology since the end of the last century. The national high-performance computing environments established in Beijing, Shanghai, Changsha and other places supported by the 863 Project are primary experiments in grid computing and enable remote login. with certain single impression functions. Grid computing has received more and more attention in the past two years. The 863 Project has launched a special grid project, aiming to establish a national high-performance computing grid demonstration system with an aggregate performance of about 10 trillion times. It is planned to be used in bioinformatics, land resources, industry Design and other departments established several exemplary application grids. The research on the Vega grid carried out by the Institute of Computing Technology of the Chinese Academy of Sciences has had a certain influence at home and abroad. Vega Grid not only includes research on grid-oriented super servers, grid browsers, and several grid protocols, but also on semantics and knowledge grids. It has taken the lead in publishing more than a dozen articles on knowledge networks in important international journals such as CACM. The quality of the paper attracted the attention of international colleagues.

3.2 Chinese character recognition technology

Unlike English, which consists of 26 letters, using computers to input, output and recognize tens of thousands of different Chinese characters is a difficult problem in promoting computer applications in China. Chinese print recognition (OCR) and handwriting recognition are important Chinese input technologies in addition to coded input. my country has reached the international leading level in Chinese OCR and Chinese handwriting input. The Institute of Automation of the Chinese Academy of Sciences successfully developed China's first online handwriting recognition software in 1985, and subsequently established Hanwang Technology Company, which specializes in Chinese character recognition technology. The software has been upgraded from version 1.0 to version 10.0 over more than a decade. The currently promoted version 10.0 can fully recognize handwritten cursive Chinese characters and a large character set containing more than 10,000 Chinese characters, making handwriting input easy. Multinational companies such as Microsoft and Motorola have adopted Hanwang Technology's technology. The error rate of printed Chinese character recognition software in large-scale entry is less than 1 in 10,000.

3.3 Intelligent Agricultural Information Technology Application Demonstration Project

Under the leadership of the Ministry of Science and Technology, the 863 Plan has launched an intelligent agricultural demonstration project since 1990, with five high-level agricultural With the expert system development platform as the core, 156 "high-yield", "economical" and "high-quality" experimental agriculture expert systems have been developed based on breakthroughs in key technologies such as knowledge acquisition, model construction, knowledge expression and reasoning, involving grain. , fruit trees, vegetables, livestock, aquatic products and other fields, it has been demonstrated and applied in 20 demonstration areas including Beijing, Jilin, Anhui, and Yunnan. According to the two annual agricultural statistics from 1998 to 2000, the demonstration area was 37.96 million acres, and the radiation promotion area was 85.04 million acres. The increase in revenue and expenditure reduction amounted to billions of yuan, and achieved significant economic and social benefits, especially in Yunnan and other relatively backward technologies. The regional benefits are very obvious. my country's agricultural expert system may provide some reference for third world countries on how to promote high technology in technologically backward areas.

3.4 Research on core technologies such as CPU

As we all know, core technologies in my country’s information field such as CPU chips and operating systems have long been controlled by foreign companies such as Intel and Microsoft. Since the beginning of this century, our country has begun to advance into core technologies such as CPUs. After two years of hard work, some preliminary results have been achieved. In August 2002, the Institute of Computing Technology of the Chinese Academy of Sciences successfully developed my country's first general-purpose CPU with independent intellectual property rights, the Loongson-1 CPU chip. This chip is compatible with MIPS CPUs, has 64-bit floating point components, and its performance reaches the level of foreign general-purpose CPUs in the mid-to-late 1990s. More than ten patents have been applied for in the design, especially with hardware support to prevent malicious attacks, and it has broad application prospects in my country's e-government and other fields. The Loongson 2 CPU with a peak speed of 2 billion operations per second is expected to be successfully developed in early 2004. After several more years of hard work, my country is expected to reach the internationally advanced level in core CPU design technology. In addition to Loongson CPUs, SMIC and Peking University have launched the Ark series and Zhongzhi series 32-bit embedded system chips (SoC), which are expected to occupy the market in network terminal computers and other aspects.

In the mid-1990s, China developed the UNIX operating system COSIX with independent intellectual property rights, but it was not successful in marketing. In recent years, the rise of Linux has provided a rare opportunity for the development of operating systems in my country. The Ministry of Science and Technology has supported some companies in developing desktop office systems based on Linux. Some enterprises and scientific research institutions have developed embedded Linux or other embedded operating systems suitable for different applications, and high-security server operating systems compatible with Linux applications are also under development. In a few years, my country's lack of independent operating systems will change.

IV. Some results of basic research in information science

Basic research in my country is mainly supported by the National Natural Science Foundation and the Key Basic Research Program of the Ministry of Science and Technology (973 Program). Since 1998, 17 basic research projects in information science have been included in the 973 plan, including high-performance algorithms, image, speech, natural language understanding and knowledge mining, mathematical mechanization and automatic reasoning platforms, and massive information organization and processing in network environments. , large-scale scientific computing, ultra-high-density fast optical information storage, quantum communication and quantum information, Agent-based software middleware, virtual reality, etc. In recent years, my country's basic research on information science has achieved many results with significant impact.

(1) Software theory research

Most of the earliest scholars engaged in software research in China were mathematicians. They had profound attainments in basic software theory and achieved a number of internationally influential achievements. scientific research results.

1.1 Executable sequential logic language and XYZ system

Easy-to-program software often has low execution efficiency. Functional languages ??that were once popular have not achieved success in the market due to low efficiency. success. In the early 1990s, the Institute of Software of the Chinese Academy of Sciences pioneered and implemented an executable sequential logic language and XYZ system, which better solved the contradiction between easy programming and execution efficiency. In recent years, XYZ systems have made new progress in applications in real-time control, multimedia and other fields, as well as visualization tools for software architecture design. The XYZ system is a major breakthrough in computer programming theory and is highly praised by international peers.

1.2 Section Calculus Theory

The formalization of real-time systems is a major problem in software theory. In 1991, researchers from the Institute of Software of the Chinese Academy of Sciences and professors such as C.A.R. Hoare proposed and published a paper on segment calculus as a logical method for real-time systems, which aroused great repercussions internationally. Segment calculus is a modal logic that describes and reasons the real-time behavior of dynamic systems. It is an extension of interval temporal logic under continuous time conditions. It has now become a new model for real-time system design, application and mathematical support tools. It has been recognized by international peers and has led scientists from more than a dozen countries to participate in research in this area.

1.3 Formal Semantics

Process algebra is the study of computer networks and remote Formal methods for concurrent phenomena such as communication have become a hot spot in basic research in computer science. The Software Institute of the Academy of Sciences designed and implemented the general process algebra verification tool PAM. Based on this, it successfully developed VPAM in 1993. So far, the only tool in the world that can directly reason about the message transmission process has been used in more than a dozen countries. The institute collaborated with Professor Hennessy from the UK to propose and independently develop the "Symbolic Mutual Simulation Theory" to promote the research on modal logic and real-time processes. Tsinghua University used topology tools to introduce the concepts of approximate mutual simulation and mutual simulation limit, and initially established the theory of approximate correctness and infinite evolution of concurrent programs. Beihang University has made pioneering work in the translation theory of concurrent computing models. It has proposed and developed grammar-guided translation technology and methods to prove the correctness of translation programs. It has also proposed formal system sequences, the limits of sequences, and The theory of process model establishes the correction algorithm technology of software specifications.

(2) Artificial Intelligence Research

2.1 Problem Solving and Artificial Neural Network Theory

Tsinghua University builds on traditional symbolism in its artificial intelligence problem solving theory. Based on the modular method, quotient space solution models of different granularities and hierarchical solution methods are proposed. On this basis, the synthesis technology of different levels of information is proposed. Based on the neural network learning new geometric representation, a method is proposed from The top-down constructive learning method, combined with the quotient space theory of multi-granularity computing, can effectively handle the learning and classification of large data volumes and complex problems. The Institute of Semiconductors of the Chinese Academy of Sciences has taken a unique approach and created the use of high-dimensional geometry to describe and design artificial neural networks. It has achieved great success in all aspects of neural network computer theory research, design and transformation. Beijing Institute of Systems Engineering has made great progress in the research of computational intelligence (including fuzzy logic, evolutionary computing and neural computing) in recent years. It has proposed the concept of "process neuron network" and has achieved outstanding results in both theory and application< /p>

2.2 Knowledge Processing Theory

Natural language understanding is one of the main difficulties of artificial intelligence. The Institute of Mathematics, Chinese Academy of Sciences has done systematic and original work in knowledge engineering and knowledge-based software engineering. It designed and presided over the development of the knowledge engineering language TUILI system and the large-scale expert system development environment "Tianma", and for the first time integrated heterogeneous Type distributed artificial intelligence and machine debate are introduced into the field of artificial intelligence; a method of automatic knowledge acquisition based on natural language understanding is developed, and the knowledge contained in the data is automatically acquired and organized by the computer with only a few changes to the book language. , and finally automatically generate the required application software, thus forming a new technology route for rapid software generation based on automatic acquisition of knowledge; another interesting result is the development of a computer animation that can automatically convert Chinese fairy tales into cartoons. Generative technology advances artificial intelligence in the field of artistic creation. The 61st Research Institute of the General Staff carried out "mechanical research on knowledge discovery" and proposed a "control flow/data flow graph pair" method and a "cloud model" that can uniformly represent and handle random uncertainty and fuzzy uncertainty, and put this innovation into practice. The model has been applied to new fields such as data mining and knowledge discovery, and has achieved excellent results. The Institute of Computing Technology of the Chinese Academy of Sciences took the lead in proposing the establishment of a "national knowledge infrastructure" and has built a multi-field professional knowledge base containing more than 3 million pieces of knowledge, which has begun to be applied in natural language processing, agricultural information systems, etc.

(3) Algorithm Research

Algorithms and computational complexity are the core of computer science. A group of domestic scholars have made arduous efforts to find effective algorithms (including approximate algorithms) for NP-hard problems (a type of difficult problem in which the calculation time increases exponentially with the size of the problem). The High-Performance Algorithm 973 project has proposed a number of high-performance algorithms that are both world-advanced and of high practical value in the fields of integrated circuit design, power dispatch, transportation, securities, and information query. Its research results are being used in some key projects. Field promotion and application.

The Institute of Computing Technology of the Chinese Academy of Sciences has invested approximately 400 person-years in scientific research over a period of six years, and has made comprehensive breakthroughs in key digital video broadcasting technologies.

The "Fast and Robust Static Sprite Generation Algorithm" proposed by this research group was adopted by the international MPEG-4 standard. In July 2002, the "Rate Control Algorithm Combining Rate Distortion Optimization Theory" proposed by this research group was adopted by the International JVT (Joint Video Team) standard acceptance; in terms of Chinese sign language recognition, this research team studied the problem of sign language recognition for a large vocabulary (more than 1,000 Chinese words) for the first time, with a correct recognition rate of 92%-95%. In terms of sign language synthesis, virtualization was used. Human synthesis technology synthesized 3163 gestures of basic Chinese sign language vocabulary, realizing the first real-time communication system between normal people and deaf-mute people in the world.

The Institute of Software of the Chinese Academy of Sciences successfully developed a parallel mathematics software library, Generalized. The eigenvalue problem parallel solution package PQR and other software products have been used in 20 universities and scientific research institutions in the United States, Europe, and Japan. They have also developed a large-scale reservoir numerical simulation parallel solver and parallel software PRIS, which are high-performance in China. Distributed parallel numerical software such as million-node fine reservoir simulation has been developed on computers, which has significant economic benefits

(4) Quantum computing and quantum communication research

Quantum information technology can Realizing new information functions that cannot be achieved by classical information technology is the forefront of contemporary information science. Researchers at the University of Science and Technology of China have made important progress in solving several key issues in quantum information technology, which is based on a certain principle of probabilistic quantum cloning. Probabilistically and accurately clone linearly independent sets of quantum states and derive the maximum cloning probability, providing a new way to effectively extract quantum information. They also used linear optical methods to successfully develop a quantum universal cloning machine experimentally. They also pioneered quantum error-avoidance coding. Its principle has been experimentally confirmed by American scholars, opening up a new method to overcome the main obstacle to the practical application of quantum information technology - the decoherence problem; a new quantum information processor is proposed, which is expected to become a practical quantum processor Tsinghua University. Scholars proposed an automaton theory based on quantum logic, proving that some basic properties of automata depend on the distributive law of the logic they are based on, thus revealing some of the essence between automaton theory based on quantum logic and classical automaton theory. Difference.

(5) Information security theory research

my country’s scientific and technological workers have completely independently researched and implemented our country’s information encryption algorithms and systems, and cryptography research has entered the forefront of international information. The National Key Laboratory of Security and other units have achieved a series of significant results in information security and cryptography research. Algebraic methods are one of the important methods for studying modern cryptography systems. Chinese scholars mainly use algebraic methods to deeply characterize cryptographic problems. These results provide important theories for the design and analysis of authentication codes, sequence ciphers and public keys.

my country's network intrusion detection and anti-virus software