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Practical Parallel Computing - Marcin Paprzycki - Bog - Nova Science Publishers Inc - Plusbog.dk

Quality of Parallel & Distributed Programs & Systems - - Bog - Nova Science Publishers Inc - Plusbog.dk

Quality of Parallel & Distributed Programs & Systems - - Bog - Nova Science Publishers Inc - Plusbog.dk

The field of parallel computing dates back to the mid-fifties, where research labs started the development of so-called supercomputers with the aim to significantly increase the performance, mainly the number of (floating point) operations a machine is able to perform per unit of time. Since then, significant advances in hardware and software technology have brought the field to a point where the long-time challenge of tera-flop computing was reached in 1998. While increases in performance are still a driving factor in parallel and distributed processing, there are many other challenges to be addressed in the field. Enabled by growth of the Internet, the majority of desktop computers nowadays can be seen as part of a huge distributed system, the World Wide Web. Advances in wireless networks extend the scope to a variety of mobile devices (including notebooks, PDAs, or mobile phones). Information is therefore distributed by nature, users require immediate access to information sources, to computing power, and to communication facilities. While performance in the sense defined above is still an important criterion in such kind of systems, other issues, including correctness, reliability, security, ease of use, ubiquitous access, intelligent services, etc. must be considered already in the development process itself. This extended notion of performance covering all those aspects is called "quality of parallel and distributed programs and systems". In order to examine and guarantee quality of parallel and distributed programs and systems special models, metrics and tools are necessary. The six papers selected for this volume tackle various aspects of these problems.

DKK 601.00
1

Parallel Computing Using Reversible Quantum Systolic Networks & their Super-Fast Array Entanglement - Anas N Al Rabadi - Bog - Nova Science Publishers

Flexible Text Searching - Konstantinos G Margaritis - Bog - Nova Science Publishers Inc - Plusbog.dk

Flexible Text Searching - Konstantinos G Margaritis - Bog - Nova Science Publishers Inc - Plusbog.dk

Exact and approximate string matching problem is a common and often repeated task in information retrieval and bioinformatics. As current free textual databases are growing almost exponentially with the time, the string matching problem is becoming more expensive in terms computational times. The authors believe that recent advances in parallel and distributed processing techniques are currently mature enough and can provide powerful computing means convenient for overcoming this string matching problem. In this book the authors present a short survey for well known sequential exact and approximate string searching algorithms. Further, the authors propose four text searching implementations onto general purpose parallel computer like a cluster of heterogeneous workstations using MPI message passing library. The first three parallel implementations are based on the static and dynamic master-worker methods. Further, the authors propose a hybrid parallel implementation that combines the advantages of static and dynamic parallel methods in order to reduce the load imbalance and communication overhead. Moreover, the authors present linear processor array architectures for flexible exact and approximate string matching. These architectures are based on parallel realisation of dynamic programming and non-deterministic finite automaton algorithms. The algorithms consist of two phases, i.e. pre-processing and searching. Then, starting from the data dependence graphs of the searching phase, parallel algorithms are derived, which can be realised directly onto special purpose processor array architectures for approximate string matching. Further, the pre-processing phase is also accommodated onto the same processor array designs. In addition, the proposed architectures support flexible patterns i.e. patterns with a "don''t care" symbol, patterns with a complement symbol and patterns with a class symbol. Finally, this book proposes a generic design of a programmable array processor architecture for a wide variety of approximate string matching algorithms to gain high performance at low cost. Further, the authors describe the architecture of the array and the architecture of the cell in more detail in order to efficiently implement for both the pre-processing and searching phases of most string matching algorithms.

DKK 534.00
1

Unauthorized Aliens & Noncitizens - - Bog - Nova Science Publishers Inc - Plusbog.dk

Gender Roles, Traditions & Generations to Come - Wade Mackey - Bog - Nova Science Publishers Inc - Plusbog.dk

A Closer Look at Membrane Proteins - - Bog - Nova Science Publishers Inc - Plusbog.dk

Silicon Carbide Particulate Reinforced Aluminum Alloys Matrix Composites Fabricated by Squeeze Casting Method - Adem Onat - Bog - Nova Science

CA for Optimization - Saeed Setayeshi - Bog - Nova Science Publishers Inc - Plusbog.dk

Perils of Purchasing Precious Metals & Coins - - Bog - Nova Science Publishers Inc - Plusbog.dk

Digital Tomosynthesis - - Bog - Nova Science Publishers Inc - Plusbog.dk

Linear Programming - Yaromir Truma - Bog - Nova Science Publishers Inc - Plusbog.dk

Dual Processing Model of Visual Information - Hitoshi Sasaki - Bog - Nova Science Publishers Inc - Plusbog.dk

Education to Meet New Challenges in a Networked Society - Paul Weaver - Bog - Nova Science Publishers Inc - Plusbog.dk

Psychology of Netaholics - Carla G Suratt - Bog - Nova Science Publishers Inc - Plusbog.dk

First Response & Public Safety Communications - - Bog - Nova Science Publishers Inc - Plusbog.dk

America's Marine Highways - - Bog - Nova Science Publishers Inc - Plusbog.dk

Biohydrogen - - Bog - Nova Science Publishers Inc - Plusbog.dk

Clinical, Genetic & Molecular Precursor Features in Colorectal, Neoplasia - - Bog - Nova Science Publishers Inc - Plusbog.dk

Clinical, Genetic & Molecular Precursor Features in Colorectal, Neoplasia - - Bog - Nova Science Publishers Inc - Plusbog.dk

The understanding of the mechanisms that explain the initiation and early evolution of colorectal cancer is evolving. This should facilitate the development of new approaches to effective prevention and intervention. Over the past years, deficiencies in the current adenoma-carcinoma model for colorectal cancer, in which APC mutation is placed at the point of initiation, have been suggested. Several pathways through which cancer may develop seem to exist, such as ''chromosomal instability'' (CIN), ''microsatellite instability'' (MSI), and most recently the ''serrated pathway'' involving epigenetic changes. Parallel to discoveries in molecular pathways are the increased awareness of early and precursor features of the colorectal mucosa detected and treated by endoscopic and minimal-invasive techniques. Thus, new staging and classification systems have been developed to guide the clinician in diagnosis and choice of treatment. This book sets focus on selected clinical and molecular aspects of colorectal precursor lesions; from the endoscopically detected colorectal polyp, major molecular mechanisms, and aspects of protease-systems in colorectal cancer development. Future research on colorectal cancer needs to be stratified according to the appropriate clinical features and their associated genetic pathways involved in order to further explore important molecular mechanisms and clinicopathological consequences of chromosomal, microsatellite and epigenetic mechanisms.

DKK 405.00
1