Transactions on Computational Collective Intelligence XXI ab 56.49 € als pdf eBook: Special Issue on Keyword Search and Big Data. Aus dem Bereich: eBooks, Sachthemen & Ratgeber, Computer & Internet,
Transactions on Computational Collective Intelligence XXI ab 57.99 € als Taschenbuch: Special Issue on Keyword Search and Big Data. 1st ed. 2016. Aus dem Bereich: Bücher, English, International, Gebundene Ausgaben,
Transactions on Computational Collective Intelligence XXI ab 57.99 EURO Special Issue on Keyword Search and Big Data. 1st ed. 2016
Transactions on Computational Collective Intelligence XXI ab 56.49 EURO Special Issue on Keyword Search and Big Data
Information Technology generates about 2% of the global CO2. Network hosts, most of which are idle most of the time, are maintained fully powered-on at all times only for the purpose of maintaining network presence. This book develops general requirements for proxying and is the first exploration of application-level proxying with the intention of saving energy by maintaining network presence. Proxying for TCP connections, SIP, and Gnutella P2P was investigated. Proxying for P2P lead to the exploration of space and time efficient data structures to reduce the computational requirements of keyword search in the proxy. The use of pre-computation and hierarchical structures for reducing the false positive rate of a Bloom filter was explored. Potential energy savings are shown to be in the hundreds of millions of dollars per year assuming a modest adoption rate of the methods investigated in this book. This book is for professionals in Computer Science looking for ways to design and implement ideas to save energy in computer networks.
A convenient source of information, tailor-made for engineers, scientists and computational chemists. Based on the latest online edition of Ullmann's, and containing articles never seen before in print (e.g. a cutting-edge article on "Modeling and Simulation of Microreactors"), this ready reference meets the need for a comprehensive survey of the mathematical fundamentals, complementary computational approaches as well as the application of modeling and simulation in chemistry and engineering. Since the entire 40-volume Ullmann's Encyclopedia is inaccessible to many readers -- particularly individuals, smaller companies or institutes -- this convenient handbook condenses all the necessary information. The detailed and meticulously edited articles have been written by renowned experts from industry and academia, with much of the information thoroughly revised. Deeper insights into any given area of interest is offered by referenced contributions, while rapid access to a particular subject is enhanced by both a keyword and author index.
This book presents a range of cloud computing security challenges and promising solution paths. The first two chapters focus on practical considerations of cloud computing. In Chapter 1, Chandramouli, Iorga, and Chokani describe the evolution of cloud computing and the current state of practice, followed by the challenges of cryptographic key management in the cloud. In Chapter 2, Chen and Sion present a dollar cost model of cloud computing and explore the economic viability of cloud computing with and without security mechanisms involving cryptographic mechanisms. The next two chapters address security issues of the cloud infrastructure. In Chapter 3, Szefer and Lee describe a hardware-enhanced security architecture that protects the confidentiality and integrity of a virtual machine's memory from an untrusted or malicious hypervisor. In Chapter 4, Tsugawa et al. discuss the security issues introduced when Software-Defined Networking (SDN) is deployed within and across clouds. Chapters 5-9 focus on the protection of data stored in the cloud. In Chapter 5, Wang et al. present two storage isolation schemes that enable cloud users with high security requirements to verify that their disk storage is isolated from some or all other users, without any cooperation from cloud service providers. In Chapter 6, De Capitani di Vimercati, Foresti, and Samarati describe emerging approaches for protecting data stored externally and for enforcing fine-grained and selective accesses on them, and illustrate how the combination of these approaches can introduce new privacy risks. In Chapter 7, Le, Kant, and Jajodia explore data access challenges in collaborative enterprise computing environments where multiple parties formulate their own authorization rules, and discuss the problems of rule consistency, enforcement, and dynamic updates. In Chapter 8, Smith et al. address key challenges to the practical realization of a system that supports query execution over remote encrypted data without exposing decryption keys or plaintext at the server. In Chapter 9, Sun et al. provide an overview of secure search techniques over encrypted data, and then elaborate on a scheme that can achieve privacy-preserving multi-keyword text search. The next three chapters focus on the secure deployment of computations to the cloud. In Chapter 10, Oktay el al. present a risk-based approach for workload partitioning in hybrid clouds that selectively outsources data and computation based on their level of sensitivity. The chapter also describes a vulnerability assessment framework for cloud computing environments. In Chapter 11, Albanese et al. present a solution for deploying a mission in the cloud while minimizing the mission's exposure to known vulnerabilities, and a cost-effective approach to harden the computational resources selected to support the mission. In Chapter 12, Kontaxis et al. describe a system that generates computational decoys to introduce uncertainty and deceive adversaries as to which data and computation is legitimate. The last section of the book addresses issues related to security monitoring and system resilience. In Chapter 13, Zhou presents a secure, provenance-based capability that captures dependencies between system states, tracks state changes over time, and that answers attribution questions about the existence, or change, of a system's state at a given time. In Chapter 14, Wu et al. present a monitoring capability for multicore architectures that runs monitoring threads concurrently with user or kernel code to constantly check for security violations. Finally, in Chapter 15, Hasan Cam describes how to manage the risk and resilience of cyber-physical systems by employing controllability and observability techniques for linear and non-linear systems.
The volume "Genres on the Web" has been designed for a wide audience, from the expert to the novice. It is a required book for scholars, researchers and students who want to become acquainted with the latest theoretical, empirical and computational advances in the expanding field of web genre research. The study of web genre is an overarching and interdisciplinary novel area of research that spans from corpus linguistics, computational linguistics, NLP, and text-technology, to web mining, webometrics, social network analysis and information studies. This book gives readers a thorough grounding in the latest research on web genres and emerging document types.The book covers a wide range of web-genre focused subjects, such as:- The identification of the sources of web genres- Automatic web genre identification- The presentation of structure-oriented models- Empirical case studiesOne of the driving forces behind genre research is the idea of a genre-sensitive information system, which incorporates genre cues complementing the current keyword-based search and retrieval applications.
The major tasks facing engineers and scientists in industrial chemistry are the operation and optimization of existing processes and the design of new or improved ones. Computational methods and tools are saving time and costs in process development and optimization if they are used complementarily to experimental methods. Based on the latest online edition of Ullmann's Encyclopedia of Industrial Chemistry, and containing articles yet unpublished in print, this ready reference meets the need for a comprehensive survey of the mathematical fundamentals, complementary computational approaches as well as the application of modeling and simulation in chemistry and engineering. Each of the detailed and carefully edited articles is written by relevant international experts, including Bruce A. Finlayson (University of Washington, USA ), Lorentz T. Biegler (Carnegie Mellon University Pittsburgh, USA), Donald Boyd (Indiana University-Purdue University at Indianapolis, USA), Vladimir Hlavacec (University of Buffalo, USA), Philippe A. Bopp (University Bordeaux, France), Steffen Hardt (Technical University Darmstadt, Germany) Readers benefit from the rigorous and cross-indexed nature of the parent reference, and will find both broad introductory information as well as in-depth details of significance to industrial and academic environments. The handbook is rounded off by keyword and author indexes. From the contents: Mathematics in Chemical Engineering Model Reactors and their Design Equations Mathematical Modeling Molecular Modeling Molecular Dynamics Simulation Computational Fluid Dynamics Design of Experiments Modeling and Simulation of Microreactors