The enormous success and diffusion that online social networks (OSNs) are encountering nowadays is vastly apparent. Users' social interactions now occur using online social media as communication channels; personal information and activities are easily exchanged both for recreational and business purposes in order to obtain social or economic advantages. In this scenario, OSNs are considered critical applications with respect to the security of users and their resources, for their characteristics alone: the large amount of personal information they manage, big economic upturn connected to their commercial use, strict interconnection among users and resources characterizing them, as well as user attitude to easily share private data and activities with strangers. In this book, we discuss three main research topics connected to security in online social networks: (i) trust management, because trust can be intended as a measure of the perception of security (in terms of risks/benefits) that users in an OSN have with respect to other (unknown/little-known) parties; (ii) controlled information sharing, because in OSNs, where personal information is not only connected to user profiles, but spans across users' social activities and interactions, users must be provided with the possibility to directly control information flows; and (iii) identity management, because OSNs are subjected more and more to malicious attacks that, with respect to traditional ones, have the advantage of being more effective by leveraging the social network as a new medium for reaching victims. For each of these research topics, in this book we provide both theoretical concepts as well as an overview of the main solutions that commercial/non-commercial actors have proposed over the years. We also discuss some of the most promising research directions in these fields.
This book provides an overview of the various developments in access control for data management systems. Discretionary, mandatory, and role-based access control will be discussed, by surveying the most relevant proposals and analyzing the benefits and drawbacks of each paradigm in view of the requirements of different application domains. Access control mechanisms provided by commercial Data Management Systems are presented and discussed. Finally, the last part of the book is devoted to discussion of some of the most challenging and innovative research trends in the area of access control, such as those related to the Web 2.0 revolution or to the Database as a Service paradigm. --
Access control is one of the fundamental services that any Data Management System should provide. Its main goal is to protect data from unauthorized read and write operations. This is particularly crucial in today's open and interconnected world, where each kind of information can be easily made available to a huge user population, and where a damage or misuse of data may have unpredictable consequences that go beyond the boundaries where data reside or have been generated. This book provides an overview of the various developments in access control for data management systems. Discretionary, mandatory, and role-based access control will be discussed, by surveying the most relevant proposals and analyzing the benefits and drawbacks of each paradigm in view of the requirements of different application domains. Access control mechanisms provided by commercial Data Management Systems are presented and discussed. Finally, the last part of the book is devoted to discussion of some of the most challenging and innovative research trends in the area of access control, such as those related to the Web 2.0 revolution or to the Database as a Service paradigm. This book is a valuable reference for an heterogeneous audience. It can be used as either an extended survey for people who are interested in access control or as a reference book for senior undergraduate or graduate courses in data security with a special focus on access control. It is also useful for technologists, researchers, managers, and developers who want to know more about access control and related emerging trends. Table of Contents: Access Control: Basic Concepts / Discretionary Access Control for Relational Data Management Systems / Discretionary Access Control for Advanced Data Models / Mandatory Access Control / Role-based Access Control / Emerging Trends in Access Control
This book covers basic concepts of web and information system security and provides new insights into the semantic web field and its related security challenges"--Provided by publisher.
Ella wollte zwei Dinge. Ihre Freiheit und Musik. Sie dachte sie hätte es endlich geschafft. Doch als sie ihre Vergangenheit wieder einholt, wurde es Zeit sich ihren Dämonen von der italiensichen Mafia zu stellen. Und dann ist da auch noch Jack, der heiße Polizist der persöhnliche Gründe hat, die Mafia zur Strecke zu bringen. Kann Ella ihr Herz wieder verschenken? Oder fehlt dazu einfach das Vertrauen?
Work isn’t what it used to be. Leaders need a field guide that equips them with what to say and do as they face the new culture expectations of today’s employees. Many employees now show up for work not just to do their jobs but also to discover, debate, and digest important social issues. A growing number of workers want to have an impact in the world, and their preferences are a prompt for employers to be more mindful of the role of business in driving societal change, starting with what people experience at work. Felicia Joy and Elena Grotto, experts on behavioral science, business strategy, and organizational culture, share practical guidance to help organizations rise to these new standards by advancing seven behaviors, including the surprising—and perhaps most important—new business skill for high-performing cultures: forgiveness. Managers today are asked to operate as both business leaders and community leaders within the workplace—and the latter skillset is new to many. I Don’t Just Work Here helps managers leverage culture to bolster business results as they replace anxiety with confidence and lead with greater purpose in providing the expanded support employees need to develop and perform. Organizations that take heed, elevate people managers, invest in building a strategic culture, and lead with clear values and behaviors are more likely to have a decisive competitive advantage and greater business impact for years to come.
This book proposes that, within the automotive industry, revised marketing principles and innovative marketing strategies are needed to address more effectively the unprecedented challenges posed by the modern digital revolution. The starting point for these proposals is a thorough analysis of the evolution of marketing in the industry across three ages of technological innovations – the mechanical, the electronic, and the digital. The main objectives are first, to illustrate how study of the past can help carmakers as they move forward into the unknown, and second, to identify the main choices that they will face. The central premise is that unusual times call for unusual strategies. By mining the past in order to foresee likely future developments regarding competition and marketing strategies within the car industry, the book will appeal both to researchers and to present or future managers in the automotive and other innovation-driven sectors.
This book presents research from leading researchers in the European banking field to explore three key areas of banking. In Bank Risk, Governance and Regulation, the authors conduct micro- and macro- level analysis of banking risks and their determinants. They explore areas such as credit quality, bank provisioning, deposit guarantee schemes, corporate governance and cost of capital. The book then goes on to analyse different aspects of the relationship between bank risk management, governance and performance. Lastly the book explores the regulation of systemic risks posed by banks, and examines the effects of novel regulatory sets on bank conduct and profitability. The research in this book focuses on aspects of the European banking system; however it also offers wider insight into the global banking space and offers comparisons to international banking systems. The study provides in-depth insight into many areas of bank risk, governance and regulation, before finally addressing the question: which banking strategies are actually feasible?
Coauthored by two internationally renowned educators and researchers, this resource helps teachers strengthen their classroom practice with lessons that promote successful intelligence—a set of abilities that allow students to adapt and succeed within their environment, make the most of their strengths, and learn to compensate for their weaknesses.
The book offers a combined discussion of the main theoretical, methodological and application issues related to corpus work. Thus, starting from the definition of what is a corpus and why reading a corpus calls for a different methodology from reading a text, the underlying assumptions behind corpus work are discussed. The two main approaches to corpus work are discussed as the “corpus-based” and the “corpus-driven” approach and the theoretical positions underlying them explored in detail. The book adopts and exemplifies the parameters of the corpus-driven approach and posits a new unit of linguistic description defined systematically in the light of corpus evidence. The applications where the corpus-driven approach is exemplified are language teaching and contrastive linguistics. Alternating between practical examples and theoretical evaluation, the reader is led step-by-step to a detailed understanding of the issues involved in corpus work and, at the same time, tempted to explore for himself some of the major applications where a corpus-driven methodology can reveal unprecedented insights into linguistic patterning.
This book investigates the practice of writing and self - translating phenomenon of self-translation within the context of mobility, through the analysis of a corpus of narratives written by authors who were born in Italy and then moved to English-speaking countries. Emphasizing writing and self-translating As practices, which exists in conjunction with a process of redefinition of identity, the book illustrates how these authors use language to negotiate and voice their identity in (trans)migratory contexts.
The interest in membranes and higher dimensional extended geometrical objects was inspired by the great successes of the string and superstring, first in 1968-73 as a theory of hadrons and then since 1984 as a ?theory of everything? ? a unified theory of all interactions, including quantum gravity. In particular, membranes, ?supermembranes? and ?spinning membranes? have been studied since 1985; an unexpected connection with supergravity opened in 1988 some new prospects for a quantized theory. General theorems about higher dimensional ?p-branes? or ?extendons? were also derived. The subject is very promising, whether as a more comprehensive fundamental unification or as a description of composite hadrons.Where there are now probably some fifty texts of all kinds dealing with strings, this is the first treatise on membranes and higher dimensional extendons.
This book examines the nature of human mobility, attitudes to it, and constructions of place over the last millennium BC in Rome and Italy. It demonstrates that there were high rates of mobility, challenging the perception of sites and communities as static and ethnically oriented entities.
This book presents the results of an extensive study of the digital divide, the growth of the internet, online education, health informatics, the net and the economy, regulation of the internet and much more. It is well researched, informative and authoritative. Individuals, organisations and governments with a specialist interest in the transition to an information society and/or knowledge economy will find this book timely. Published with SFI Publishing.
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