This book forms the much needed strong interface between algorithmic complexity and computer experiments using a careful blending of traditional ideas in algorithms with untraditional research in computer experiments (esp. fitting stochastic models to non-random data). While establishing the aforesaid interface, the important role of statistical bounds and their empirical estimates obtained over a finite range (called empirical O) is discovered as a bonus. While these bounds are very valuable for the average case, our research suggests in addition that there is no need to be over-conservative in the worst case just as the statistical bounds safeguard against making tall optimistic claims for the best cases. In short the statistical...
ISBN: 978-3-8383-7743-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
How much IT-(Security) is enough? Many valuation methods have been developed, which try to define the value of IT and IT security investments. As criteria like Return on Investment (ROI) can be seen as a concept with a set of methods, tools, activities, and ideas, there is still no guide on how to apply, and combine those methods in order to invest in the right level of IT-(security). This work aims to reduce the gap between IT and IT security investments in order to improve the 1) Estimation of input values for IT security investments, 2) Alignment of IT security investments to the organization's objectives, 3) Valuation of IT investment alternatives considering the appropriate level of IT security investments. This is performed by the...
ISBN: 978-3-6393-2767-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т.п. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 9781146455466
Издательство:
Книга по требованию
Дата выхода: июль 2011
North American children have a variety of cultural and linguistic backgrounds. For children whose mother tongue is still being spoken at home, maintaining and advancing parental linguistic instruction is an ongoing effort. We propose a means for computer assisted language delivery based on an expandable language content delivery system. The system is applied to the instruction of Arabic for grade one, second language instruction. All aspects of the delivery process are demonstrated in terms of letter shape, composition, recognition, connection shapes, and relevant vocabulary models. This model is relevant to the instruction of cursive languages such as Urdu or Persian. We drew on relevant research to enhance and contrast our system where...
ISBN: 978-3-6391-5601-0
Издательство:
Книга по требованию
Дата выхода: июль 2011
In collaborative working environments (CWE), context describes people, artefacts, activities and resources. One major challenge in this domain is to sense context changes. However, the integration and deployment of context sensors often poses a serious problem, since in pervasive SOA-based collaboration environment the sensor developer is not able to change 3rd party services by adding sensor modalities. To mitigate this shortcoming, our approach focuses on analysing the message exchange between service provider and service consumer. In this thesis we design and implement a toolkit that simplifies the development and deployment of SOA- based context sensors, filtering and forwarding SOAP messages as well as managing context data....
ISBN: 978-3-6391-8479-2
Издательство:
Книга по требованию
Дата выхода: июль 2011
Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т.п. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 9781147570359
Издательство:
Книга по требованию
Дата выхода: июль 2011
This study is intended to build the framework of a concatenative TTS (Text to Speech) system for Turkish. The system is based on concatenative, unit selection approach. It contains two different speech databases comprised of units which are directly recorded and cut from a continuous speech. Some digital signal features such as zero crossing rate and energy of speech have been used. PSOLA (Pitch Synchronous Overlap and Add) algorithm has been used for smoothing while concatenating the units. Some subjective tests are used to measure the success. The quality of the synthesized speech is measured depending on intelligibility, the ability to be understood, and naturallness, the closeness to human speech. Mean Opinion Score (MOS) has been...
ISBN: 978-3-8433-7012-7
Издательство:
Книга по требованию
Дата выхода: июль 2011
Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т.п. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 9781146229067
Издательство:
Книга по требованию
Дата выхода: июль 2011
One of the most challenging tasks for modern computer systems is to recognize situations and perform actions in the real world -- a task that is handled easily by humans. Modern concepts for Artificial Intelligence still have serious problems when operating in such scenarios. In bionic approaches, models of human perception and cognitive processes are investigated in order to improve the performance of computational agents. A technically feasible and unitary model of these processes does not exist, however. This thesis introduces the computational framework ARSi09/Lang for the decision-making unit of an autonomous agent, which transfers the theory of psychoanalytical metapsychology into a technically feasible specification....
ISBN: 978-3-8381-1875-8
Издательство:
Книга по требованию
Дата выхода: июль 2011
Despite different computerised approaches have been hardwired to solve various complex practical problems; few are founded on an adaptive paradigm such that a computational model interacts with its environment, loosely wires itself and learns from experience like humans do. This book presents our attempt to craft a computational model that learns from interactions and adapts based on its experience. We draw ideas from cognitive psychology in relation to human experiential learning, particularly the notions of “situatedness”, “constructive memory” and “concept formation”. When applied to design activities, which are intrinsically dynamic and interactive, this model constructs concepts from interactions between the agent, the...
ISBN: 978-3-6391-3589-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
In this work, we present a prototype for a large interactive display (LID) application that provides a 3D representation of a collection of geo-referenced units of information to commanders taking part in a firefighting intervention. The main focus of the work was placed on the development and evaluation of relevant interaction mechanisms based on single and multi-touch enabled interactive displays. This book presents an application designed to display geo-referenced information inside a 3D scene. The application provides a collection of tools to support the user in the exploration and manipulation of the information. It further introduces the basic concepts and underpinnings sustaining the application and provides an overview of the...
ISBN: 978-3-8364-9660-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Software reuse is a key factor for enterprises interested in productivity gains and software quality. In this context, Software Product Line (SPL) and Service-Oriented Architecture (SOA) are two reuse strategies that are getting a lot of attention in research and practice lately. SPL and SOA share some goals and characteristics, which motivate the use of both together with the purpose of increasing reuse rates. However, this combination needs a well-defined development process. Without this process, the development team may develop software in an ad-hoc manner with success relying on the effort of a few individual members, what may increase the risks of failure, development costs and time-to-market. In this sense, this book presents an...
ISBN: 978-3-8383-5951-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
More recently, with an increase in distributed approaches to the study of Multi-Agent Simulation (MAS), those critical issues such as interoperability among distributed simulation systems, time synchronization, and performance efficiency have become major research object. Up to present, most related research works have been focus on virtual environment simulation model, while studies that are concerned with providing an analytic simulation framework which can make future estimation for target systems are quite relatively few. Therefore, in this thesis, we proposed an extensible event-driven agent-based simulation infrastructure (E2ASI). With this infrastructure, we try to enhance interoperability, deal with time synchronization...
ISBN: 978-3-8383-3111-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
General-purpose computing devices, such as PCs, and the operating systems that run on them provide more functionality and capabilities than most users will ever want or need. Too much of the burden of keeping these computer systems secure is placed on the end users. Users are often required to keep the operating system, applications, security software, and anti-virus definitions up-to-date. Even with the latest security updates, users are still susceptible to the newest exploits. When a system does become compromised, the process of then restoring it to a usable state can frequently result in the loss of personal data stored on the system. Personal data can often only be recovered through repeated effort and in some cases can never be...
ISBN: 978-3-8433-6730-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
In spite of huge advances in information technologies and the widespread commitment to adopt them, a considerable part of the organization’s information and business process activities still exist outside the scope of automated management. Adopted Information technology (I.T.) solutions’ cannot completely cover information and business processes (within an organization) due to their well-structured hard-to-adjust nature; while the organizations’ business processes continuously deviate and evolve. Documents and document-based activities compose that part of the organization’s information and business processes activities exiting outside the scope of automated management. However, documents are our typical mean to adjust with the...
ISBN: 978-3-6392-2710-9
Издательство:
Книга по требованию
Дата выхода: июль 2011
A smart object system encompasses the synergy between computationally augmented smart objects and pervasive applications and has emerged as one of the principal technologies to embrace the recent paradigm of people centric computing. This dissertation has focused on the development of a software framework for building smart object systems. It provides a theoretical foundation for smart object systems and presents a set of requirements and component abstractions for a supporting infrastructure. A document based framework is developed where applications' requirements and smart objects' services are objectified through structured documents. A runtime infrastructure provides the spontaneous federation between smart objects and applications....
ISBN: 978-3-8383-1522-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
Recommender systems assist the user in decision- making processes and automate information processing steps like the classification of artifacts. Intelligent recommendations help users to cope with the steadily growing information overload within the internet or when using information systems at their place of work, for instance. As an example, the recommendation techniques collaborative filtering and content-based filtering are mainly applied in the areas of e-Commerce and web navigation to recommend potentially relevant articles or websites. Recommender systems are either based on machine learning functions such as clustering, classification, and prediction or they are realized by symbolic methods like association rule mining, that is,...
ISBN: 978-3-8381-1375-3
Издательство:
Книга по требованию
Дата выхода: июль 2011
In this research, we look at the problem of detecting complex situations arising in e-markets which have been growing in size rapidly over the past few years. Existing tools available today still cannot overcome the main challenges such as processing a large amount of incoming real-time data from market feeds and the ability to extract data efficiently at a high level. We propose to address these problems using the Event Processing concept and refer to an e-market as a distributed event-driven system, e-market transactions as events and data analysis tools as Event Processing Systems (EPSs). Our solution is based on the new EPS architecture that allows the integration of several existing EPSs (slave EPSs) under a unified domain-specific...
ISBN: 978-3-6391-3413-1
Издательство:
Книга по требованию
Дата выхода: июль 2011
Книга представляет собой репринтное издание. Несмотря на то, что была проведена серьезная работа по восстановлению первоначального качества издания, на некоторых страницах могут обнаружиться небольшие "огрехи": помарки, кляксы и т.п. Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.
ISBN: 9781147384772
Издательство:
Книга по требованию
Дата выхода: июль 2011
The main goal of this research project is to define a generic architecture for the protection and management of digital rights in a multimedia content management scenario following open standards as much as possible. In order to achieve this goal, several standards and initiatives will be analysed and taken into account. First, a MPEG-21-based preliminary architecture for the protection and management of digital rights for multimedia content is tackled. Later on, a more general architecture is defined. Several implementations are described such as those in several Spanish and European projects such as AXMEDIS, VISNET II, Linked-Work and GILDDA. The focus in made on use cases, security features and a testing methodology. Linked-Work...
ISBN: 978-3-6391-3959-4
Издательство:
Книга по требованию
Дата выхода: июль 2011
Parallel computer architectures, while difficult to program, are now a fact of life in scientific computing and, increasingly, computing in general. While a hardware supported shared address space offers programmability advantages and better performance for fine-grained communication, the very mechanisms that create those advantages appear to prevent the machines that use them from scaling to large numbers of processors. This book proposes changes to a hardware-based DSM architecture that allow software to use two address spaces to gain the scalability of distributed architectures and retain the benefits of the shared address space architecture. The Dual Address Space Architecture provides both an efficient mechanism for enabling...
ISBN: 978-3-6391-8085-5
Издательство:
Книга по требованию
Дата выхода: июль 2011
