Multidimensional computing power
the Roman coin Fund Association attaches great importance to and is optimistic about the development of blockchain. The Roman user alliance, which is composed of Roman coin enthusiasts and core technicians of Ethereum team, is based on the smart contract 4.0 technology developed by Ethereum, and uses Roman coin in the form of blockchain to realize the integration of world culture and build a new territory of global digital assets<
Roman currency (LMB) is the world's first community-based decentralized digital asset public chain
the positioning of Roman currency (LMB) is the world's first community-based decentralized digital asset trading platform public chain, and Roman currency (LMB) is a decentralized financial service institution providing professional blockchain currency business. With the processing methods of distributed bookkeeping, collective maintenance and digital encryption, Roman dollar has completed a decentralized and reliable database, established a point-to-point transaction mechanism without trust, broke through the important bottleneck of the transformation from information internet to value Internet, and realized a new point-to-point "e-cash transaction mode" in international trade<
Roman coin (LMB) is the world's first community-based decentralized digital asset public chain
through the development of cross platform communication solutions, Roman coin provides users with new social ways of cross platform instant communication and digital red envelope assets, narrowing the gap between payment system and social media until it disappears. Roman dollar is a smart contract 4.0 game instry chain based on Ethereum, which builds the whole blockchain environment of puzzle game whole brain ecation electronic mall payment application big data analysis<
Roman coin (LMB) is the world's first community-based decentralized digital asset public chain
Roman coin has a powerful electronic payment system, and users can use LMB to buy goods in the mall. LMB can also be circulated in games, online shopping malls, etc., realizing multi scene payment application consumption. Analyze and explore the multi-dimensional big data generated by user payment and consumption applications to help businesses or enterprises draw more accurate consumer portraits and carry out precision marketing for targeted users. Users can purchase mining machines through the mall to get computing power for mining, or get corresponding LMB token rewards through game points<
Roman dollar (LMB) is the world's first community-based decentralized digital asset public chain
the computing power comes from the intelligent hardware of mining machinery. The higher the level of mining machinery purchased by users, the stronger the computing power they get, and the easier it is to find the mine. In addition, users can also mine online on the Rome platform. Roman currency can be freely circulated in the chain, used in the game mall to buy goods or carry out daily payment consumption, and can also be traded in the digital currency exchange. Roman currency also supports cross-border payment.
1. In 2016, Laibin public security organ was deeply engaged in the main business of public security, and achieved good results through measures such as prevention and control<
a series of special operations such as "Shenjian No.1" and "Shenjian No.2" were organized to severely crack down on illegal and criminal activities in the fields of "theft, robbery and deception", "pornography, gambling and drugs", "dangerous guns and explosives" and food, medicine and environmental protection, and achieved "nine increases" and "four 100%" in the overall criminal case detection rate, robbery case detection rate and homicide case detection rate (i.e., 100% detection of 28 current homicide cases We have achieved good results in cracking criminal cases involving guns and explosives, investigating cases supervised by the public security department, and arresting people at large supervised by the public security department. We have successively cracked 9 cases of ministry supervision and 23 cases of department supervision, including the "1.01" pyramid selling project, "3.8" mega drug manufacturing case, "9.01" mega Internet gambling case, "3.28" tobacco related case. In the aspect of three-dimensional prevention and control, we have achieved the goal of "eight rections and one increase" in the number of criminal cases, eight categories of major criminal cases, robbery cases, fraud cases, theft cases, robbery cases, homicide cases and public security cases
"under the high pressure of the public security organs, the cases of" two robberies "have decreased significantly. Last year, there were 233 days of zero cases of "two robberies" in the urban area of Laibin City, an increase of 29 days over the previous year. " Li Shi, deputy secretary of the Party committee, deputy director and Secretary of the Discipline Inspection Commission of Laibin Public Security Bureau, said<
behind his outstanding achievements is a "great division in Central Guangxi". In 2016, a total of 1 collective and 1 indivial won provincial and ministerial level commendation, 12 collective and 17 indivial won department level commendation, 14 collective and 43 indivial won municipal level commendation, 1 collective won collective second class merit, 8 collective won collective third class merit, 39 collective awards, 6 police won indivial second class merit, 57 police won indivial third class merit, 195 policemen won indivial awards<
2 cultivate intelligent policing with the wings of science and technology
the lack of police force is a tough injury. In the reality of more cases and fewer people, Laibin public security innovates policing mechanism, demands police force from science and technology, demands police force from wisdom, compresses crime space, and creates a safe and harmonious environment
in 2016, Laibin Municipal Public Security Bureau, in order to play a good role in science and technology warfare, information warfare and synthetic warfare, on the basis of continuously improving the equipment, functions and systems of the Municipal Bureau's synthetic warfare command center, promoted the construction of county-level synthetic warfare system, and correspondingly set up a synthetic warfare room led by criminal investigation, making it a "one-stop" command platform for case detection
on April 18, 2016, a series of telephone fraud cases occurred in Laibin City on the ground of "tax refund for house purchase", resulting in the loss of more than 120000 yuan. In order to detect cases as soon as possible and rece the losses of the masses, the Laibin City Public Security Bureau gathered the series of cases into the synthetic operations command center, and combined with scientific means and traditional investigative techniques, quickly locked 3 suspect suspects and seized 3 suspects in Ruijin, Jiangxi Province in April 29th. Subsequently, the combined operations command center arrested 8 gang members suspected of fraud in Xiamen City, Fujian Province on June 8
according to statistics, in 2016, the Laibin City public security organs cracked 1673 criminal cases through the synthetic operation platform, accounting for 62.6% of the total number of cases, and arrested 1035 suspect persons, accounting for 54.15% of the total number of arresting cases. Assisting the police in other places to study and judge 143 cases, searching 316 cables, and arresting 87 suspects at large. More than 50 major cases such as "Chen's telecom network fraud", "Qin's highway robbery" have been detected
Laibin Municipal Public Security Bureau dares to taste the crabs, and strives to build the portrait recognition Laboratory of the Public Security Department of the autonomous region in Laibin, and build a platform and database for receiving cases, inputting information, examining and approving cases, video image management and other functions in the public security intranet
at present, Laibin Public Security Bureau has built a portrait database of 11.3 million permanent residents in Guangxi and 1 million key people in other provinces. It uses big data to quickly compare the portrait and determine the identity of personnel. It has achieved remarkable results in the investigation of new network (Communication) crime cases and multiple robbery and deception cases, and improved the efficiency of solving cases, It reces the cost of handling cases. Since its operation, the system has successfully used image comparison to determine the real identities of more than 100 suspects, and assisted in the investigation of more than 60 major cases inside and outside the District, involving more than 10 million yuan
technology is combat effectiveness. Laibin City Public Security Bureau "three in one" system based on the modern police command platform, police, alarm and other resources in the "one map" marked positioning, police command to achieve intelligent, flat, visual, truly "police follow the police situation", to achieve social security prevention and control precise deployment, accurate strike and dynamic adjustment. The "intelligent management and control system for electric vehicles" has been developed to effectively prevent and rece the occurrence of theft of electric vehicles, which has been praised by the masses
3 based on public security reform and innovation of police mechanism
since September 2016, Laibin citizens suddenly found that there were more policemen directing traffic on the street, and the traffic order was relatively orderly. This benefits from the deepening reform of police mechanism
the reform is a fine tradition of Laibin public security. Due to the shortage of police force and limited funds, Laibin public security is forced to innovate the police mechanism and give full play to the limited police force
in January 2011, Laibin Municipal Public Security Bureau integrated all kinds of police and set up an urban police detachment, which greatly promoted the maintenance of urban social order and street traffic, and became a "guest sample" of police mechanism reform
with the economic development of Laibin, the expansion of urban area and the substantial increase of car ownership, the original mechanism has been unable to meet the needs of society. In order to better play the role of the urban police detachment and create a better traffic environment for the public, Laibin Public Security Bureau assigned the first traffic police detachment in charge of urban traffic management to the urban police detachment in September 2016 to further improve the traffic management ability and level of the main urban area. After the reform, the detachment gave full play to its functions and investigated 2628 traffic violations, an increase of 54.86% year on year; The death toll in urban traffic accidents decreased by 75%. According to the survey, 85% of the public think that the rate of seeing the police and managing affairs has increased significantly, and 75% of the public think that the urban road traffic order has improved significantly
Network (Communication) fraud is emerging in endlessly, which brings unstable factors to the society, and the masses reflect strongly. On December 29, Laibin Public Security Bureau's anti false information fraud center was set up to declare war on false information fraud cases. By using big data platform and other intelligent police systems, it has achieved good results in blocking blocks, receiving and dealing with police quickly, striking fast, stopping payment fast and early warning fast, so as to effectively protect the property safety of the people
in addition, Laibin Municipal Public Security Bureau innovates the management of special personnel, and solves the problems of admission and treatment of special personnel such as drug-related persons with serious diseases, injured persons involved in cases, and mental patients causing trouble by establishing special medical districts. All kinds of cases in Xingbin District, where public security was once trapped, have decreased by a large margin, and robbery cases have decreased by 37.28%. We have innovated the prison work law, actively carried out the socialization of detention center management ecation, ecated and transformed a number of illegal personnel, effectively resolved a number of social contradictions, and achieved good legal and social effects. Last year, Laibin detention center successfully entered the detention center to resolve 30 social conflicts. The detention center of Xiangzhou County was rated as the "law enforcement demonstration unit of public security organs in the whole region"
source: Ping An guests
are there multiple client applications? There are two schools of thought. One assumption is that a single normative client application can concentrate limited resources on one project, and a development team can communicate more easily, which will maximize the success rate and competitiveness compared with other platforms. In addition, a single client application can prevent consensus failure caused by local account book inconsistency of different nodes (at least as long as each node upgrades its software after hard forking). On the other hand, the existence of multiple clients will make the network more likely to survive attacks (one client may stop block proction completely) or consensus failure (one or more clients cannot run the protocol correctly, which may lead to wrong block or stop block proction completely). In fact, both happened in Ethereum. But there are more subtle reasons. Firstly, the parallel application of multiple clients reces the dominant influence of a single core development team on the network, which is one of the biggest problems of bitcoin governance (zcash foundation will also decide to build a second zcash client to balance the power of electric coin). Moreover, different clients may make different architecture decisions and have different advantages (for example, mining, data search), and using different languages to write clients can enable more developers to participate in core development. Although parallel applications and beta applications are very good, the mainstream is the main network client: for example, bitcoin has at least 15 client applications, but 97% of the nodes run a program, that is, bitcoin core
how many organizations control mining computing power? The more parties involved in mining, the more difficult it is to collude with each other to engage in selfish mining, or to engage in double flower attacks (commonly known as 51% attacks, but the actual mathematical principles are more complex). This is not a hypothetical risk, as it has occurred in networks such as Ethereum classic and bitcoin gold. In addition, more miners means a fairer distribution of mining rewards. Although many indivial miners may participate in mining, because of incentives, they will gather in a few mines, and even a seemingly decentralized network may rely on a few entities for Mining: the three largest Ethereum mines jointly control 60% of the total power, while bitcoin's top four mines account for about 56%.
The top ten virtual currency trading platforms are: bitcoin China, Ethereum, Monroe, dascoin, reborn, etc.
Bitcoin China (BTCC), the first and largest bitcoin trading platform in China, is operated by Shanghai satuxi Network Co., Ltd., which was established on June 9, 2011. The team members are mainly from China, Silicon Valley and Europebitcoin China provides a reliable trading platform for users to buy and sell bitcoin through RMB
users can also save bitcoin safely in the platform
bitcoin China has achieved the best balance between high security and user convenience
4. Monro (code name XmR) is an open source cryptocurrency founded in April 2014, which focuses on privacy, decentralization and scalability. Unlike many cryptocurrencies derived from bitcoin, monero is based on cryptonote protocol and has significant algorithm differences in blockchain fuzziness
Dash, formerly known as dark coin, is a technical improvement on the basis of bitcoin. It has good anonymity and decentralization. It is the first digital currency with the purpose of protecting privacy. You can feel that it is liked by the black market when you listen to its name The main characteristics of Dashi coin are as follows:1
2. Instant payment function, timely arrival and low handling charge
Automobile network information security is becoming a hot topic
recently, 360 company officially released the annual report on information security of intelligent networked vehicles in 2019, which combs the development of information security of intelligent networked vehicles in 2019 from the aspects of development trend of network security of intelligent networked vehicles, new attack means, attack events of vehicle security, summary of vehicle security risks and suggestions on security construction
According to the introction, APN is a private network established by the operators for the manufacturers, because the private network APN is a private network with high security level. It is directly connected to the core switch of the car factory, bypassing the protection of the firewall and intrusion detection system on the network side. However, once hackers penetrate into the internal network of the car factory through the private APN network, they can implement further penetration attacks and realize remote batch control of carsin the previous speech, 360sky go's security researchers found that most of China's domestic independent brand cars use private APN to connect to TSP back-end servers related to vehicle control. ISP can protect the back-end server to a certain extent, but it also brings more security risks to the back-end server
the reason is that, e to the existence of private APN, TSP will not be exposed to the public network, but the security personnel of TSP ignore the security problems of private network and TSP itself. At the same time, there is no strict security access control in the private network, and T-box is over trusted, so that T-box can access the internal assets of private network at will
at the same time, many unnecessary infrastructure services are also exposed to APN private network, which will cause more security risks. Therefore, once the hacker obtains the T-box communication mole of the smart car, he can access the private network of the car factory through the communication mole, and then attack the intranet of the car factory, resulting in the fall of TSP
the attack of automatic driving algorithm based on GSN is e to the lack of special training data such as confrontation samples in the process of deep learning model training. In the current practical application of deep learning, it is proved by the experiments of researchers that the corresponding counter samples can be generated by a specific algorithm to directly attack the image recognition system. Therefore, the current neural network algorithm still has some security risks, which is worthy of our attention
in addition to these two new attack modes, there is another attack mode worthy of our attention, which is digital key
according to the introction, the digital car key can be used in remote call, automatic parking and other emerging application scenarios, and this diversified application scenario also makes the digital key vulnerable to attack. The reason is that the "short board effect" of digital car key is significant. If any link such as identity authentication, encryption algorithm, key storage, data packet transmission is invaded by hackers, the whole digital car key security system will collapse. At present, the common way of attack is to amplify the signal of digital car key through relay attack, so as to steal vehicles
security of smart cars in the future
in the mobile phone instry, from the upgrading of traditional function phones to smart phones, network information security has always been accompanied by the problem. Even in today's period when smart phones are so developed, network fraud is inevitable
similar to the mobile phone instry, the upgrading of traditional function vehicles to intelligent network connected vehicles will inevitably face network information security problems. However, cars are no better than mobile phones. When mobile phones are attacked by network hackers, the most common is property loss. But once the car is attacked or hijacked by hackers, serious traffic accidents are likely to occur
Based on this, 360 put forward five suggestions in the report:first, establish a safety responsibility system for key links of suppliers. It can be said that the golden section of automobile network security lies in the safety management of suppliers“ The "new four modernizations" will speed up the development of new procts by first-class suppliers. At that time, new first-class suppliers will join the procurement system of main engine plants, and the original supply chain pattern will be reshaped. Supply chain management will become a new pain point of automotive network security. The main engine factory should comprehensively evaluate the suppliers from the aspects of quality system, technical ability and management level
Second, implement safety standards and lay a solid foundation for safety. The year 2020 will be a year when the automotive network security standards will be fully implemented. According to iso21434 and other network security standards, the network security work is comprehensively arranged in the stages of concept, development, proction, operation, maintenance, destruction, etc., the risk assessment is integrated into the whole life cycle of automobile manufacturing, the perfect supply chain management mechanism is established, and the penetration test is carried out regularly according to the network security standards of electronic and electrical parts, In order to effectively manage security risks, we should continuously monitor network security data, conct security analysis combined with threat intelligence, and carry out situational awareness Thirdly, build a multi-dimensional security protection system and strengthen security monitoring measures. Passive defense scheme can not cope with the emerging network security attack means, so it is necessary to deploy new security protection procts such as security communication mole and security vehicle gateway at the vehicle end, actively discover the attack behavior, timely warn and block it, and build a hierarchical defense system in depth from point to area through multi node linkageFourth, the use of Threat Intelligence and security big data to enhance the ability of security operations. The network security environment is changing rapidly. High quality Threat Intelligence and continuously accumulated security big data can help automobile enterprises to improve their security operation ability to the greatest extent at a small cost, so as to cope with the changeable network security challenges
Fifthly, good automobile safety ecological construction depends on sincere cooperation. Internet companies and security companies rely on the technology precipitation and accumulation in the traditional IT field, keep up with the rapid development of automotive network security, and have unique research and insights on related automotive electronic and electrical procts and solutions. Only when the upstream and downstream enterprises of the instrial chain form a joint force, can they jointly promote the automotive network security to a new height of "active defense in depth" and escort the mature landing of "new four modernizations"in the future, automobile safety problems are bound to be various, which can only be prevented by the joint efforts of the upstream and downstream of the instrial chain
this article comes from the author of car home, which does not represent the standpoint of car home
in the future, xinbaojun will adhere to the differentiation road of mobile car connection, intelligent driving and cross-border integration, and strengthen the investment in digital marketing. In terms of channels, at present, the investors of xinbaojun and Wuling Baojun overlap. "Our small goal is that by the end of June this year, xinbaojun can completely separate from the existing Wuling Baojun stores and form an independent network, and then introce a competitive mechanism to survive the fittest." Zhang Zisheng said so
at the end of the paper
with the arrival of the wave of "new four modernizations", there is a new era in front of auto enterprises. At present, xinbaojun is in the forefront of auto enterprises, and has shown almost desperate determination. Such courage and boldness are praiseworthy, but it also means that xinbaojun has little experience to learn from, Finally, whether it can transform successfully still needs the test of market and time
this article comes from the author of car home, which does not represent the standpoint of car home
this is very similar to our own brand. E-Car has put in a lot of advertisements in the past period of time. You will think that e-Car is so rich. We use e-Car data to find the channel we should put in and the materials we should use to put in our advertisements. We have a 3:7 ratio, 30% of which are brand procts, and 70% of which are effect procts. This effect proct has been matched with the brand countless times in many instries, forming a better marketing result
finally, we hope that e-Car can provide an all-around digital integrated service, and provide efficient marketing solutions for the OEM&# 160;
the above is my proct presentation today, thank you< br />
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α- Although t is not inferior to its own rivals in terms of interconnection, intelligence and enrance, there is a big gap between T and its rivals in terms of power output, not to mention in terms of chassis technology α- Although t is controlled by magna as a whole, compared with Tesla, both aion and arcfox have great potential for improvement. Therefore, this time, the company's α- Although t has achieved the new energy vehicle interconnection driving point, but the control power aspect has been neglected
this article comes from the author of car home, which does not represent the standpoint of car home
starting from unsupervised learning: what kinds of algorithm models are there
supervised learning allows the machine to learn by tagging the data, such as: Xiao Cao's weight and height is fat paper, or calculate Xiao Cao's BMI coefficient by using the data such as height and weight; However, unsupervised learning has no data annotation, only the data itself
for example, there is a large group of people who know their height and weight, but we don't tell the machine the criteria of "fat" and "thin". Clustering is to let the machine divide these people into several categories according to the similarity between the data
how is it implemented? How can we judge which data belong to the same category
these are several common algorithms mainly used for unsupervised learning
k-means algorithm
auto encoder
principal component analysis
k-means algorithm
k-means algorithm has the following steps:
starting from unsupervised learning: what are the algorithm models
randomly select k centers to represent K categories
calculate the Euclidean distance between n sample points and k center points
each sample point is divided into the nearest (minimum Euclidean distance) center point category iteration 1
calculate the mean value of the sample points in each category to get k mean values, and take the K mean values as the new center point -- iteration 2
repeat 234
get the k center points after convergence (the center points do not change) - iteration 4
the Euclidean distance mentioned above, also known as Euclidean distance, represents the distance between two points in Euclidean space. The coordinate system we learned in junior high school is a two-dimensional Euclidean space, and the Euclidean distance is the distance between two points. Similarly, the calculation method of multi-dimensional space is the same as that of three-dimensional and two-dimensional space.