25 Years of Model-Driven Web Engineering : What we achieved, what is missing

Model-Driven Web Engineering (MDWE) approaches aim to improve the Web applications development process by focusing on modeling instead of coding, and deriving the running application by transformations from conceptual models to code. The emergence of the Interaction Flow Modeling Language (IFML) has been an important milestone in the evolution of Web modeling languages, indicating not only the maturity of the field but also a final convergence of languages. In this paper we explain the evolution of modeling and design approaches since the early years (the 90’s) detailing the forces which drove that evolution and discussing the strengths and weaknesses of some of those approaches. A brief presentation of IFML is accompanied with a thorough analysis of the most important achievements of the MDWE community as well as the problems and obstacles that hinder the dissemination of model-driven techniques in the Web engineering field.Laboratorio de Investigación y Formación en Informática Avanzada (LIFIA

Copyright law, digital content and the internet in the Asia-Pacific

This e-book provides an insight into the key issues facing copyright law and digital content policy in a networked information world, based on papers presented at the First International Forum on the Content Industry and Intellectual Property. Published by Sydney University Press, this e-book provides an insight into the key issues facing copyright law and digital content policy in a networked information world, based on papers presented at the First International Forum on the Content Industry and Intellectual Property. The book features chapters from a wide range of experts in their respective fields from across the Asia-Pacific region, including Australia, the People\u27s Republic of China, Hong Kong, Indonesia and Singapore. Some of the areas examined include the new digital environment, digital content policy, the networked information economy, copyright law and new media. The book provides a timely and scholarly appraisal of the legal and policy considerations facing anyone trying to regulate, sponsor or utilise the vast array of new media and content platforms now available

Average Household Size and the Eradication of Malaria

Efforts to eradicate malaria during the 20th century succeeded in some parts of the world but failed in others. Malaria also disappeared spontaneously in several countries for reasons that remain an enigma. The connection between malaria and poverty has long been noted. Here we focus on a specific aspect: household size, which has hitherto received little attention. We find strong evidence that when average household size drops below four persons, the probability of malaria eradication jumps dramatically and its incidence in the population drops significantly. This effect is independent of all commonly-studied explanatory variables and was globally valid across all climate zones irrespective of counter measures, vector species, or Plasmodium species. We propose an explanation based on the dispersal mechanism of the parasite. Malaria is transmitted at night by mosquito bite. The mosquito typically spreads the Plasmodium only locally over short distances to new human victims. To survive, the Plasmodium depends on infected humans making social contacts over longer distances. When household size decreases sufficiently, these contacts cross a threshold value that changes the balance between extinctions and replacements and the Plasmodium disappears on its own. We test this interpretation by contrasting our malaria model with dengue fever, which is also poverty-related and mosquito-borne but transmitted differently, namely through daytime exposure. Household size is uncorrelated with dengue incidence, whereas an indicator of outdoor work that is insignificant in the malaria model is highly significant for dengue. We conclude that poverty-induced malaria infection risks are likely to persist, but a focus on reducing effective household size can be a feasible and promising means of its eradication.Malaria;dengue fever, household size, DDT

Security and Privacy for Modern Wireless Communication Systems

The aim of this reprint focuses on the latest protocol research, software/hardware development and implementation, and system architecture design in addressing emerging security and privacy issues for modern wireless communication networks. Relevant topics include, but are not limited to, the following: deep-learning-based security and privacy design; covert communications; information-theoretical foundations for advanced security and privacy techniques; lightweight cryptography for power constrained networks; physical layer key generation; prototypes and testbeds for security and privacy solutions; encryption and decryption algorithm for low-latency constrained networks; security protocols for modern wireless communication networks; network intrusion detection; physical layer design with security consideration; anonymity in data transmission; vulnerabilities in security and privacy in modern wireless communication networks; challenges of security and privacy in node–edge–cloud computation; security and privacy design for low-power wide-area IoT networks; security and privacy design for vehicle networks; security and privacy design for underwater communications networks

News flows in Singapore

Thema dieser Dissertation ist die Entwicklung der Nachrichtenflüsse in Singapur zwischen 1965 und 2000 im Kontext der Diskusionen über die "Neue Weltinformationsordnung". Zwei der Leitfragen sind, wie sich die Nachrichtenflüsse in Singapur entwickelt haben und ob die Idee einer "Neuen Weltinformationsordnung" immer noch taugt, die Nachrichtenflüsse dort "ausgewogener und effizienter" zu machen. Die These ist, dass die Nachrichtenflüsse in Singapur in den vergangenen Dekaden zwar effizienter, aber nicht ausgewogener wurden. Die Dissertation schließt damit, dass es sich nach wie vor lohnt, über die Unausgewogenheit in den Nachrichtenflüssen dort zu diskutieren, wenngleich die Idee einer "Neuen Weltinformationsordnung" an sich unrealistisch und inzwischen veraltet ist.The subject of this dissertation is the development of news flows in Singapore between 1965 and 2000 in context with the discussions regarding the "New World Information Order". Two of the main questions are how the news flows have developed in Singapore and whether the idea of a "New World Information Order" is still useful to make the news flows there "more just and more efficient". The thesis is that the news flows in Singapore have become more efficient, but not more just in the past several decades. The dissertation concludes that it is still worth discussing the imbalances in the news flows there, even though the idea of the "New World Information Order" itself is unrealistic and outdated now

25 Years of Model-Driven Web Engineering : What we achieved, what is missing

Model-Driven Web Engineering (MDWE) approaches aim to improve the Web applications development process by focusing on modeling instead of coding, and deriving the running application by transformations from conceptual models to code. The emergence of the Interaction Flow Modeling Language (IFML) has been an important milestone in the evolution of Web modeling languages, indicating not only the maturity of the field but also a final convergence of languages. In this paper we explain the evolution of modeling and design approaches since the early years (the 90’s) detailing the forces which drove that evolution and discussing the strengths and weaknesses of some of those approaches. A brief presentation of IFML is accompanied with a thorough analysis of the most important achievements of the MDWE community as well as the problems and obstacles that hinder the dissemination of model-driven techniques in the Web engineering field.Laboratorio de Investigación y Formación en Informática Avanzada (LIFIA

On Semantic Caching and Query Scheduling for Mobile Nearest-Neighbor Search

Location-based services have received increasing attention in recent years. In this paper, we address the performance issues of mobile nearest-neighbor search, in which the mobile user issues a query to retrieve stationary service objects nearest to him/her. An index based on Voronoi Diagram is used in the server to support such a search, while a semantic cache is proposed to enhance the access e ciency of the service. Cache replacement policies tailored for the proposed semantic cache are examined. Moreover, several query scheduling policies are proposed to address the inter-cell roaming issues in multi-cell environments. Simulations are conducted to evaluate the proposed methods. The result shows that the system performance, in terms of cache hit ratio, query response time, cell-cross number and cell-recross number, is improved signi cantly