An Internet without the Internet protocol

The growth of the Internet has brought about many challenges for its critical infrastructure. The DNS infrastructure, which translates mnemonic host names into IP addresses understood by the routers, is frequently the target of cache poisoning attacks. Internet routers are also experiencing alarming growth in their routing table sizes, which may soon make it impossible for them to forward packets quickly enough to meet demand. Further, concerns about IPv4 address space exhaustion loom on the horizon despite the availability of IPv6. In this paper, we take a fresh look at Internet routing and propose a scheme that addresses all of these concerns cleanly. Our scheme forgoes IP addresses entirely and instead uses host names as identifiers in packets. The scalability of routing is ensured by encapsulating these packets in highly aggregated routing locators: we use autonomous system numbers (ASNs), which are already an integral part of inter-domain routing. We present data and experiments to show that a much simpler and scalable routing infrastructure can be designed for a future Internet by using fewer identifiers for its entities.     

The Internet knowledge (iKnow) measure

Despite increasing development and administration of Internet surveys, tests, and many other applications to be used by employees and the general public, little is known about the knowledge individuals bring to Internet tasks. This research improves our understanding of the concept of Internet knowledge, and provides initial support for the construct validity of a new measure of Internet knowledge with respect to its factor structure, internal consistency reliability, and concurrent validity. From a practical perspective, clearer definition of Internet knowledge and the availability of a reliable measure of such knowledge can advance our understanding of how individuals develop Internet experience through its use and may also inform the process by which web sites and Internet applications are designed.     

An alternative measure of the ICT-Opportunity Index

We developed an alternative approach for measuring information and communication technology (ICT), applying Data Envelopment Analysis (DEA) using data from the International Telecommunications Union as a sample of 183 economies. We compared the ICT-Opportunity Index (ICT-OI) with our DEA-Opportunity Index (DEA-OI) and found a high correlation between the two. Our findings suggest that both indices are consistent in their measurement of digital opportunity, though differences still exist in different regions. Our new DEA-OI offers much more than the ICT-OI. Using our model, the target and peer groups for each country can be identified.     

国内移动互联网产业现状浅析

国内移动互联网产业规模越来越大,已成为互联网公司和运营商不可忽视的业务拓展领域。首先,分析了移动互联网与传统互联网的相同点和不同点。两者都具有开放性、免费性和对广告的依赖性,但移动互联网又有其特点,如移动性、局限性、强关联性及私密性。然后,分析了目前移动互联网巨头的商业行为,分析表明,目前获得巨大利益的都是平台提供商。只有当业务平台足够广阔,能够提供全方位的价值服务时,商家才能盈利。移动互联网界最大的平台无疑是运营商自己的平台,因此运营商最有可能成为最大的赢家。最后,结合其他运营商的经验,分析了目前中国移动公司在移动互联网方面的发展方向。     

Defining and computing a value based cyber-security measure

In earlier work, we presented a value based measure of cybersecurity that quantifies the security of a system in concrete terms, specifically, in terms of how much each system stakeholder stands to lose (in dollars per hour of operation) as a result of security threats and system vulnerabilities; our metric varies according to the stakes that each stakeholder has in meeting each security requirement. In this paper, we discuss the specification and design of a system that collects, updates, and maintains all the information that pertains to estimating our cybersecurity measure, and offers stakeholders quantitative means to make security-related decisions.     

An Internet accessible telepresence

The US Vice President, Al Gore, in a speech on the information superhighway, suggested that it could be used to remotely control a nuclear reactor. We do not have enough confidence in computer software, hardware, or networks to attempt this experiment, but have instead built a Internet-accessible, remote-controlled model car that provides a race driver's view via a video camera mounted on the model car. The remote user can see live video from the car, and, using a mouse, control the speed and direction of the car. The challenge was to build a car that could be controlled by novice users in narrow corridors, and that would work not only with the full motion video that the car natively provides, but also with the limited size and frame rate video available over the Internet multicast backbone. We have built a car that has been driven from a site 50 miles away over a 56-kbps IP link using format video at as little as one frame per second and at as low as pixels resolution. We also built hardware to control the car, using a slightly modified voice grade channel videophone. Our experience leads us to believe that it is now possible to put together readily available hardware and software components to build a cheap and effective telepresence.     

An entropy-based measure of software complexity

It is proposed that the complexity of a program is inversely proportional to the average information content of its operators. An empirical probability distribution of the operators occurring in a program is constructed, and the classical entropy calculation is applied. The performance of the resulting metric is assessed in the analysis of two commercial applications totaling well over 130000 lines of code. The results indicate that the new metric does a good job of associating modules with their error spans (averaging number of tokens between error occurrences)     

An economically scalable Internet

Over the past decade, many observers have claimed that the Internet brings the information revolution's components together in a way that will rival the industrial revolution's effects on human productivity and quality of life. The paper discusses an economically scalable Internet, including bandwidth resources, quality of service, users' quality of experience, scalability and multicast-enabled distribution.     

基于阈值的彩色目标图像的提取与测量

幅彩色图像提供了很多不同的信息,但是为了更好地研究我们所感兴趣的目标图像,需要将它们以图像斑块的形式单独提取出来,从而排除研究所不需要的干扰信息和背景信息,使得研究上作更容易、更准确。通过合理的选取阈值及提取关系,如大于等于阈值、小于等于阈值等,可从图像中提取研究所关心的目标图像及其边界,并测量所提取的目标图像的总面积及目标图像各斑块的面积和周长,由此可研究其分布规律与分布密度;并可在测量的基础上对目标图像斑块进行统计,统计出在一定面积或周长范围内目标图像斑块的个数,为相应的研究提供定量分析。     

An applications perspective into the Future Internet

The building of the Future Internet is well on its way with many research projects and experimental development activities in different parts of the works. However the debate over different approaches is still ongoing. Much of the comparison is concentrating on the different technical capabilities, however, very little effort has been put on finding out how such capabilities will actually be used by the different stakeholders and in particular by users and service providers. Decisions such as whether to take an evolutionary step with TCP/IP, start to use cellular protocols, or develop something new, should be based on realistic and validated user scenarios clearly highlighting what might be needed in the future and indicating a prioritised roadmap. As the Future Internet is needed for supporting new applications and services, it is natural that the requirements for Future Internet should come from the future applications. In this paper, we take a look at a likely future to see what kind of applications can be expected. We then analyse some potential future applications trying to understand the key features the Future Internet should support in order to meet key challenging requirements. Finally, we compare the requirements with the existing Future Internet research, in order to see how they match to each other.     

漫谈互联网创新

互联网产生的社会背景美国传统的电信网是等级制,首都是最顶级中心,接下来是州中心、然后下面还有几级,那时候中国的电信网也是多级制,分为五级。传统的电信网在正常情况下,底层可靠性可以达到99.99%,它是靠底层的可靠性来支持上层的信息传输,下面被破坏了,信息传输就有问题了;另外,一旦中心被打击,可能整个     

Skype网络电话技术探析

Skype网络电话技术是近年来兴起的对传统电信业冲击较大的一项技术,拥有全球近3亿的用户数,2012年被微软收购以来使用率上涨了58%,已成为全球最重要的网络通讯服务。对其网络结构及运行机制进行了深入探析,特别是用户登录过程、搜索机制等,为以后国内网络电话技术研究提供了借鉴和参考。     

An information measure for class discrimination

This article describes a separability measure for class discrimination. This measure is based on the Fisher information measure for estimating the mixing proportion of two classes. The Fisher information measure not only provides a means to assess quantitatively the information content in the features for separating classes, but also gives the lower bound for the variance of any unbiased estimate of the mixing proportion based on observations of the features. Unlike most commonly used separability measures, this measure is not dependent on the form of the probability distribution of the features and does not imply a specific estimation procedure. This is important because the probability distribution function that describes the data for a given class does not have simple analytic forms, such as a Gaussian. Results of applying this measure to compare the information content provided by three LANDSAT-derived feature vectors for the purpose of separating small grains from other crops are presented.     

An entropy-based uncertainty measure of process models

In managing business processes, the process uncertainty and variability are significant factors causing difficulties in prediction and decision making, which evokes and augments the importance and need of process measures for systematic analysis. We propose an entropy-based process measure to quantify the uncertainty of business process models. The proposed measure enables capturing the dynamic behavior of processes, in contrast to previous work which focused on providing measures for the static aspect of process models.     

An Embedded Internet interface system

ForewordThe rapid development of the computer and net-work technology has caused the technical revolution withdeep controlled field. Networked, opening structure be-comes the main developing trend of control systemstructure. A large amount of 8/16 bit embedded equip-ment of single - chip computer, such as instrument andapparatus, data gathering and displaying, real- time ap-plication and process controlling, industrial automation,home automation, etc., will become development richsoil of Inter…     

An Embedded Internet interface system

This article has introduced a method to connect the embedded system with Internet, and given a circuit of embedded system connect.