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The Universal Solution
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Book Synopsis Foundations of Query Answering in Relational Data Exchange by : André Hernich
Download or read book Foundations of Query Answering in Relational Data Exchange written by André Hernich and published by Logos Verlag Berlin GmbH. This book was released on 2010 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Relational data exchange is the problem of translating relational data according to a given specification. It is one of the many tasks that arise in information integration. A fundamental issue is how to answer queries that are posed against the result of the data exchange so that the answers are semantically consistent with the source data. For monotonic queries, the certain answers semantics by Fagin, Kolaitis, Miller, and Popa (2003) yields good answers. For many non-monotonic queries, however, this semantics was shown to yield counter-intuitive answers. This dissertation deals with the problem of computing the certain answers to monotonic queries on the one hand. On the other hand, it presents and compares semantics for answering non-monotonic queries, and investigates how hard it is to evaluate non-monotonic queries under these semantics.
Book Synopsis Logic and the Foundations of Game and Decision Theory - LOFT 8 by : Giacomo Bonanno
Download or read book Logic and the Foundations of Game and Decision Theory - LOFT 8 written by Giacomo Bonanno and published by Springer. This book was released on 2010-08-19 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 8th International Conference on Logic and the Foundations of the Theory of Game and Decision Theory, LOFT8 2008, held in Amsterdam, The Netherlands, July 2008. This volume is based on a selection of the presented papers and invited talks. They survived a thorough and lengthy reviewing process. The LOFT conferences are interdisciplinary events that bring together researchers from a variety of fields: computer science, economics, game theory, linguistics, logic, multi-agent systems, psychology, philosophy, social choice and statistics. Its focus is on the general issue of rationality and agency. The papers collected in this volume reflect the contemporary interests and interdisciplinary scope of the LOFT conferences.
Book Synopsis Relational and XML Data Exchange by : Marcelo Arenas
Download or read book Relational and XML Data Exchange written by Marcelo Arenas and published by Springer Nature. This book was released on 2022-05-31 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data exchange is the problem of finding an instance of a target schema, given an instance of a source schema and a specification of the relationship between the source and the target. Such a target instance should correctly represent information from the source instance under the constraints imposed by the target schema, and it should allow one to evaluate queries on the target instance in a way that is semantically consistent with the source data. Data exchange is an old problem that re-emerged as an active research topic recently, due to the increased need for exchange of data in various formats, often in e-business applications. In this lecture, we give an overview of the basic concepts of data exchange in both relational and XML contexts. We give examples of data exchange problems, and we introduce the main tasks that need to addressed. We then discuss relational data exchange, concentrating on issues such as relational schema mappings, materializing target instances (including canonical solutions and cores), query answering, and query rewriting. After that, we discuss metadata management, i.e., handling schema mappings themselves. We pay particular attention to operations on schema mappings, such as composition and inverse. Finally, we describe both data exchange and metadata management in the context of XML. We use mappings based on transforming tree patterns, and we show that they lead to a host of new problems that did not arise in the relational case, but they need to be addressed for XML. These include consistency issues for mappings and schemas, as well as imposing tighter restrictions on mappings and queries to achieve tractable query answering in data exchange. Table of Contents: Overview / Relational Mappings and Data Exchange / Metadata Management / XML Mappings and Data Exchange
Book Synopsis Foundations of Data Exchange by : Marcelo Arenas
Download or read book Foundations of Data Exchange written by Marcelo Arenas and published by Cambridge University Press. This book was released on 2014-03-06 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a summary of the key developments of a decade of research into the area of data exchange.
Book Synopsis An Introduction to Category Theory by : Harold Simmons
Download or read book An Introduction to Category Theory written by Harold Simmons and published by Cambridge University Press. This book was released on 2011-09-22 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: Category theory provides a general conceptual framework that has proved fruitful in subjects as diverse as geometry, topology, theoretical computer science and foundational mathematics. Here is a friendly, easy-to-read textbook that explains the fundamentals at a level suitable for newcomers to the subject. Beginning postgraduate mathematicians will find this book an excellent introduction to all of the basics of category theory. It gives the basic definitions; goes through the various associated gadgetry, such as functors, natural transformations, limits and colimits; and then explains adjunctions. The material is slowly developed using many examples and illustrations to illuminate the concepts explained. Over 200 exercises, with solutions available online, help the reader to access the subject and make the book ideal for self-study. It can also be used as a recommended text for a taught introductory course.
Book Synopsis Scalable Uncertainty Management by : Weiru Liu
Download or read book Scalable Uncertainty Management written by Weiru Liu and published by Springer. This book was released on 2013-09-10 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 7th International Conference on Scalable Uncertainty Management, SUM 2013, held in Washington, DC, USA, in September 2013. The 26 revised full papers and 3 revised short papers were carefully reviewed and selected from 57 submissions. The papers cover topics in all areas of managing and reasoning with substantial and complex kinds of uncertain, incomplete or inconsistent information including applications in decision support systems, machine learning, negotiation technologies, semantic web applications, search engines, ontology systems, information retrieval, natural language processing, information extraction, image recognition, vision systems, data and text mining, and the consideration of issues such as provenance, trust, heterogeneity, and complexity of data and knowledge.
Book Synopsis Incomplete Data and Data Dependencies in Relational Databases by : Sergio Greco
Download or read book Incomplete Data and Data Dependencies in Relational Databases written by Sergio Greco and published by Springer Nature. This book was released on 2022-06-01 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: The chase has long been used as a central tool to analyze dependencies and their effect on queries. It has been applied to different relevant problems in database theory such as query optimization, query containment and equivalence, dependency implication, and database schema design. Recent years have seen a renewed interest in the chase as an important tool in several database applications, such as data exchange and integration, query answering in incomplete data, and many others. It is well known that the chase algorithm might be non-terminating and thus, in order for it to find practical applicability, it is crucial to identify cases where its termination is guaranteed. Another important aspect to consider when dealing with the chase is that it can introduce null values into the database, thereby leading to incomplete data. Thus, in several scenarios where the chase is used the problem of dealing with data dependencies and incomplete data arises. This book discusses fundamental issues concerning data dependencies and incomplete data with a particular focus on the chase and its applications in different database areas. We report recent results about the crucial issue of identifying conditions that guarantee the chase termination. Different database applications where the chase is a central tool are discussed with particular attention devoted to query answering in the presence of data dependencies and database schema design. Table of Contents: Introduction / Relational Databases / Incomplete Databases / The Chase Algorithm / Chase Termination / Data Dependencies and Normal Forms / Universal Repairs / Chase and Database Applications
Book Synopsis Declarative Programming and Knowledge Management by : Michael Hanus
Download or read book Declarative Programming and Knowledge Management written by Michael Hanus and published by Springer. This book was released on 2014-07-11 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the Kiel Declarative Programming Days, KDPD 2013, unifying the following conferences: the 20th International Conference on Applications of Declarative Programming and Knowledge Management (INAP 2013), the 22nd International Workshop on Functional and (Constraint) Logic Programming (WFLP 2013) and the 27th Workshop on Logic Programming (WLP 2013), held in Kiel, Germany, in September 2013. The 15 papers presented were carefully and reviewed and selected for inclusion in this book. They cover the following topics: logic programming, constraint problem solving, programmable logic solvers, functional programming and constraint programming.
Book Synopsis Rediscovering the Fifth dimension by : Jan Edvin Andersen
Download or read book Rediscovering the Fifth dimension written by Jan Edvin Andersen and published by BoD – Books on Demand. This book was released on 2023-05-31 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brand-new universal model and physics was first published, in book form, September 26th, 2015! Remember the important date! This book, is a brand new textbook, in a brand new basic 5-dimensional quantum physics, and is written for future physicists and researchers! This new model is a full 'visualization' of all these 'extra' undetectable quantum physical dimensions! 'Rediscovering the fifth dimension' is a brand new 5-dimensional quantum physics model that builds up the entire universe, only on energetic oscillating fields, and a very special universal substance! This substance is actually the difference between whether something can be seen, discovered, detected or not! This universal substance was fully proven by Carl David Anderson as early as the 1930s! This 'semi-physical substance' is produced only by the Higg's field! That's the only reason they were able to discover this Higg's field as the absolute only possible field they could detect in the particle accelerator! They found absolutely no physical particles! Remember this! This is very important if you want to understand the universe as it really appears! This new quantum physical hologram model's atoms, are only these 4-dimensional oscillating energetic fields, which are actually fully proven, by the particle accelerator, in 2016! As a result, 99% of the universe actually consists of an undetectable quantum physics side, and 1% is this strange substance! This is where reality comes to the 'surface' and becomes fully 'visible', in the highly active 5-dimensional quantum physical universal engine room! The fact that something is visible and detectable is only due to the 'substance'! This new model reveals Tesla technology and stealth technology, and points out the very reason why the UFO's can disappear from today's high-tech radars! The reason why the UFO can disappear from radar, is that there are no physical particles left in the UFO, only the atom! This 'substance' can 'disappear' again, completely controlled, also the stealth effect occurs, in the UFO! The particle accelerator's final and very clear evidence just says that there can be no physical particles, and that it actually proves that there has never been a big-bang!! Still today, is this fake big-bang universe only researched and taught!? Why? Is it only because scientists don't understand the right universe that the particle accelerator actually proved to them should be there!? The energetic oscillating field universe!?
Book Synopsis Answering Queries Using Views by : Foto Afrati
Download or read book Answering Queries Using Views written by Foto Afrati and published by Springer Nature. This book was released on 2022-11-10 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of using views to answer queries has been popular for a few decades now, as it cuts across domains such as query optimization, information integration, data warehousing, website design, and, recently, database-as-a-service and data placement in cloud systems. This book assembles foundational work on answering queries using views in a self-contained manner, with an effort to choose material that constitutes the backbone of the research. It presents efficient algorithms and covers the following problems: query containment; rewriting queries using views in various logical languages; equivalent rewritings and maximally contained rewritings; and computing certain answers in the data-integration and data-exchange settings. Query languages that are considered are fragments of SQL, in particular, select-project-join queries, also called conjunctive queries (with or without arithmetic comparisons or negation), and aggregate SQL queries.
Book Synopsis Answering Queries Using Views, Second Edition by : Foto Afrati
Download or read book Answering Queries Using Views, Second Edition written by Foto Afrati and published by Springer Nature. This book was released on 2022-05-31 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: The topic of using views to answer queries has been popular for a few decades now, as it cuts across domains such as query optimization, information integration, data warehousing, website design and, recently, database-as-a-service and data placement in cloud systems. This book assembles foundational work on answering queries using views in a self-contained manner, with an effort to choose material that constitutes the backbone of the research. It presents efficient algorithms and covers the following problems: query containment; rewriting queries using views in various logical languages; equivalent rewritings and maximally contained rewritings; and computing certain answers in the data-integration and data-exchange settings. Query languages that are considered are fragments of SQL, in particular select-project-join queries, also called conjunctive queries (with or without arithmetic comparisons or negation), and aggregate SQL queries. This second edition includes two new chapters that refer to tree-like data and respective query languages. Chapter 8 presents the data model for XML documents and the XPath query language, and Chapter 9 provides a theoretical presentation of tree-like data model and query language where the tuples of a relation share a tree-structured schema for that relation and the query language is a dialect of SQL with evaluation techniques appropriately modified to fit the richer schema.
Book Synopsis Universal Concept of Complexity by the Dynamic Redundance Paradigm by : Andrei P. Kirilyuk
Download or read book Universal Concept of Complexity by the Dynamic Redundance Paradigm written by Andrei P. Kirilyuk and published by . This book was released on 1997 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Universal Generating Function in Reliability Analysis and Optimization by : Gregory Levitin
Download or read book The Universal Generating Function in Reliability Analysis and Optimization written by Gregory Levitin and published by Springer Science & Business Media. This book was released on 2006-02-04 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many real systems are composed of multi-state components with different performance levels and several failure modes. These affect the whole system's performance. Most books on reliability theory cover binary models that allow a system only to function perfectly or fail completely. "The Universal Generating Function in Reliability Analysis and Optimization" is the first book that gives a comprehensive description of the universal generating function technique and its applications in binary and multi-state system reliability analysis. Features: - an introduction to basic tools of multi-state system reliability and optimization; - applications of the universal generating function in widely used multi-state systems; - examples of the adaptation of the universal generating function to different systems in mechanical, industrial and software engineering. This monograph will be of value to anyone interested in system reliability, performance analysis and optimization in industrial, electrical and nuclear engineering.
Book Synopsis Database Theory - ICDT 2003 by : Diego Calvanese
Download or read book Database Theory - ICDT 2003 written by Diego Calvanese and published by Springer. This book was released on 2003-07-01 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 9th International Conference on Database Theory, ICDT 2002, held in Siena, Italy in January 2002. The 26 revised full papers presented together with 3 invited articles were carefully reviewed and selected from 92 submissions. The papers are organized in topical sections on reasoning about XML schemas and queries, aggregate queries, query evaluation, query rewriting and reformulation, semistructured versus structured data, query containment, consistency and incompleteness, and data structures.
Book Synopsis Mathematical Principles of Mechanics and Electromagnetism by : Chao-cheng Wang
Download or read book Mathematical Principles of Mechanics and Electromagnetism written by Chao-cheng Wang and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Universal Design 2016: Learning from the Past, Designing for the Future by : H. Petrie
Download or read book Universal Design 2016: Learning from the Past, Designing for the Future written by H. Petrie and published by IOS Press. This book was released on 2016-09-15 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Universal Design is the term used to describe the design of products and environments which can be used by all people, to the greatest extent possible, without the need for adaptation or specialized design. It is not a euphemism for ‘designs for people with a disability’, but really is about designing to include all people, regardless of their age, ability, cultural background or status in life. However it remains the case that many designers and developers fail to understand the need for universal design and lack the skills needed to implement it. This book presents papers from the 3rd International Conference on Universal Design (UD 2016), held in York, UK, in August 2016. The theme of the conference was: learning from the past, designing for the future, and it aimed to bring together policymakers, practitioners and researchers interested in the different strands of universal design to exchange ideas and best practice, review some of the developments in universal design from the last 20 years, and formulate strategies for taking the concept of universal design forward into the future. The book is divided into two sections. Section 1: About Universal Design, and Section 2: Universal Design In Practice. The book will be of interest to all those whose work involves design, from the built environment and tangible products to communication, services and systems.
Book Synopsis Web Reasoning and Rule Systems by : Markus Kroetzsch
Download or read book Web Reasoning and Rule Systems written by Markus Kroetzsch and published by Springer. This book was released on 2012-08-30 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 6th International Conference on Web Reasoning and Rule Systems, RR 2012, held in Vienna, Austria, in September 2012. The 27 revised research papers, presented together with 2 invited talks and 5 research summaries were carefully reviewed and selected from 42 submissions. The papers were organized in topical sections on technical communications, algorithms, design aspects of rule markup, design of ontology languages, engineering of engines, translators, and other tools, standardization efforts, such as the Rules Interchange Format activity at W3C, and applications.
