http://www.computer.org/internet IEEE Internet Computing helps computer scientists and engineers use the ever-expanding resources of the Internet.IC and IC Online publish the latest developments in Internet-based applications and supporting technologies and address the Internet's widening impact on engineering practice and society. The magazine targets the designers and developers of Internet-based applications and leading edge technologies -- the early adopters who develop tools for the web and the high-end users who want to use tools that exist on the web. IC's content reaches over 11,000 subscribers internationally, comprising leading researchers, developers and engineers (76% industry, 24% government/academia). en-us Sun, 19 May 2013 10:00:07 GMT http://csdl.computer.org/common/images/logos/internet.gif List of recently published journal articles http://www.computer.org/internet http://doi.ieeecomputersociety.org/10.1109/MIC.2013.26 For recommending interesting resources, such as Web pages or pictures, in social tagging systems assessing their similarity with user profiles is crucial. Here, we analyze the role of semantic similarity to calculate the resemblance between user profiles and published resources in folksonomies. Experiments carried out with data from two social sites showed that associating semantics to tags results in more accurate similarities among elements in tagging systems and, consequently, enhances recommendations. http://doi.ieeecomputersociety.org/10.1109/MIC.2013.26 http://doi.ieeecomputersociety.org/10.1109/MIC.2013.3 In this paper, we propose a new approach to distributed computing with web browsers and a prototype framework called WeevilScout. The proliferation of web browsers and the performance gain being achieved by current JavaScript virtual machines raises the question whether Internet browsers can become yet another middleware for distributed computing. With 2 billion users online, computing through Internet browsers has the potential of amassing immense resources thus transforming the Internet into a distributed computer ideal for common classes of distributed scientific applications such as parametric studies. As a proof of concept we demonstrate how a cluster of globally distributed Internet browsers is used to compute thousands of bio-informatics tasks. WeevilScout is available at http://elab.lab.uvalight.net/weevilscout/ http://doi.ieeecomputersociety.org/10.1109/MIC.2013.3 http://doi.ieeecomputersociety.org/10.1109/MIC.2013.25 More than one billion users log in to Facebook at least once a month to connect and share content with each other. Among other activities, these users upload over 2.5 billion content items every day. In this article we describe the development and deployment of the software that supports all this activity, focusing on the site's primary codebase for the Web front-end. http://doi.ieeecomputersociety.org/10.1109/MIC.2013.25 http://doi.ieeecomputersociety.org/10.1109/MIC.2013.6 As base stations are currently large energy consumers, it is important to investigate their energy efficiency in order to develop more energy-efficient wireless access networks in the future. This study investigates how energy-efficient LTE-Advanced networks can be designed compared to LTE networks. Therefore, a power consumption model is developed for both the LTE and LTE-Advanced macrocell and femtocell base station, along with a suitable energy efficiency measure. The influence on the energy efficiency of the three main functionalities added to LTE-Advanced is investigated: carrier aggregation, heterogeneous networks, and extended MIMO support. Our study shows that these functionalities improve the energy efficiency: up to 400% and 450% by using, respectively, carrier aggregation and MIMO. For bit rates higher than 20 Mbps, the macrocell base station is the most energy-efficient. Below 20 Mbps, the most energy-efficient base station type depends on the bit rate. http://doi.ieeecomputersociety.org/10.1109/MIC.2013.6 http://doi.ieeecomputersociety.org/10.1109/MIC.2013.4 In a previous paper [Revising WSDL documents: Why and How, IEEE Internet Computing, vol. 14, 2010], we have shown that effectively discovering Web services is subject to avoiding a number of common design errors in publishers' Web Service Description Language (WSDL) documents. We have therefore proposed guidelines, which unfortunately are applicable only when publishers follow the top-down, a.k.a. contract-first, method to build services, which is not very popular due to its inherent costs. We present an approach to prevent such errors when using its counterpart method, namely bottom-up or code-first, and measure the impact of the approach in service discovery. The rationale behind the study is that since code-first services interfaces are automatically generated by tools that given a service implementation deterministically map programming languages constructs onto WSDL elements, the measurable properties of services implementations may influence resulting services interfaces. http://doi.ieeecomputersociety.org/10.1109/MIC.2013.4 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.143 According to the W3C (World Wide Web Consortium) accessibility standards, most Web applications are neither accessible nor usable for people with disabilities. Developers often solve this problem by building a separate, accessible application, which is seldom usable and tends to offer less functionality than the original one. To maintain a single application, developers may create an accessible view by applying on-the-fly transformations to each requested page; yet this solution rarely fits all audiences. In this paper we propose to let users improve Web accessibility in their client browsers through interface refactorings, allowing for many customized, accessible views of one single application. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.143 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.142 Infrastructure as a Service is a Cloud computing paradigm that enables service providers to execute applications on third-party infrastructures with the pay-as-you-go billing model. Service providers can balance operational costs and quality of service by monitoring the application behavior and changing the deployed configuration at runtime as operating conditions change. Current approaches for automatically scaling cloud applications exploit user defined rules that respond well to events that can be predicted at design time, but have no provision for learning, hence do not react adequately to unexpected execution conditions. In this article we present a new approach for designing autonomic controllers that automatically adapt to unpredicted conditions by dynamically updating a model of the system behavior. The approach demonstrates Kriging models as a suitable means to design efficient autonomic controllers. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.142 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.96 IPv6 opens a door of next generation Internet with the abundant address space and the automatic networkparameter configuration, such as IPv6 host address, default route, and DNS information. This paper describes three approaches for the DNS configuration in IPv6 hosts for Recursive DNS Server addresses and DNS Search List. This paper also describes four deployment scenarios of IPv6 wired and wireless networks, considering the characteristics of those networks. This paper provides IPv6 network administrators and users with the guidelines of DNS configuration in their target networks. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.96 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.95 Evaluation is instrumental in the development and management of effective information retrieval systems and ensuring high levels of user satisfaction. Using crowdsourcing to obtain relevance assessments has been shown to be viable through a number of publications. What is less well understood are the limits of crowdsourcing for the assessment task, particularly for domain specific search. We present results comparing relevance assessments gathered using crowdsourcing with those gathered from a domain expert for evaluating different search engines in a large government archive. While crowdsourced judgments rank the tested search engines in the same order as expert judgments, crowdsourced workers appear unable to distinguish different levels of highly accurate search results in a way that expert assessors can. The nature of this limitation in crowd sourced workers for this experiment is examined and the viability of crowdsourcing for evaluating search in specialist settings is discussed. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.95 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.69 Cloud computing will play a major role in the development of the future Internet of Services, enabling on-demand provisioning of applications, platforms, and computing infrastructures. However, there are several technology challenges that must be addressed to turn this vision into reality. Specific challenges in the deployment of future IaaS clouds include the efficient management of infrastructure clouds to deliver scalable and elastic service platforms on-demand, the development of cloud aggregation architectures and technologies to enable the collaboration and interoperation of cloud providers, and improvements in security, reliability and energy efficiency of cloud infrastructures. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.69 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.24 Fast and unpredictable social data evolution poses challenges in capturing user activities and complex associations. Evolving graph clustering is promising for uncovering latent users’ and content’s patterns evolution. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.24 http://doi.ieeecomputersociety.org/10.1109/MIC.2012.23 Haptic devices, providing tactile or force effects to the user, are becoming a common way of interaction in several fields of applications. Some efforts have been done to enhance Web applications interfaces with haptics. Aim of this paper is to show the current state of the art in this area, pointing out benefits and issues of the integration of haptics. http://doi.ieeecomputersociety.org/10.1109/MIC.2012.23 http://doi.ieeecomputersociety.org/10.1109/MIC.2011.137 Recent reports reveal that majority of security violations are caused by weaknesses in code. Buffer overflow vulnerability is the most severe of security violations. Though wide range of solutions from static analysis techniques to hardware modifications were proposed to tackle the vulnerability they either fail to address the large scope of the problem or have limitations preventing their use and adoption. In this article, we discuss well-known buffer overflow vulnerability exploit mechanisms followed by comprehensive study of proposals for defending from such exploits along with review of tools used for supporting the process. http://doi.ieeecomputersociety.org/10.1109/MIC.2011.137 http://doi.ieeecomputersociety.org/10.1109/MIC.2011.129 The Semantic Web is an extension of the traditional Web in which meaning of information is well defined, thus allowing a better interaction between people and computers. To accomplish its goals, mechanisms are required to make explicit the semantics of Web resources, to be automatically processed by software agents (this semantics being described by means of online ontologies). Nevertheless, issues arise caused by the semantic heterogeneity that naturally happens on the Web, namely redundancy and ambiguity. For tackling these issues, we present an approach to discover and represent, in a non-redundant way, the intended meaning of words in Web applications, while taking into account the (often unstructured) context in which they appear. To that end, we have developed novel ontology matching, clustering, and disambiguation techniques. Our work is intended to help bridge the gap between syntax and semantics for the Semantic Web construction. http://doi.ieeecomputersociety.org/10.1109/MIC.2011.129 http://doi.ieeecomputersociety.org/10.1109/MIC.2011.109 Recent reports reveal that majority of security violations are caused by weaknesses in code. Buffer overflow vulnerability is the most severe of security violations. Though wide range of solutions from static analysis techniques to hardware modifications were proposed to tackle the vulnerability they either fail to address the large scope of the problem or have limitations preventing their use and adoption. In this article, we discuss well-known buffer overflow vulnerability exploit mechanisms followed by comprehensive study of proposals for defending from such exploits along with review of tools used for supporting the process. http://doi.ieeecomputersociety.org/10.1109/MIC.2011.109 http://www.computer.org/portal/site/internet/ IEEE Internet Computing http://www.computer.org/portal/site/internet/