a fuzzy description logic for the semantic web

... in the important areas of data transformation, the semantic representation of spatial and/or temporal relations, and for applications of metadata Bremen, May 2004 Otthein Herzog TEAM LinG Preface ... V Kashyap and A Sheth Schematic and semantic similarities between database objects: A context-based approach The International Journal on Very Large Data Bases, 5(4):276–304, 1996 65 Vipul Kashyap ... standard reference for mediators 144 M F Worboys and P Bofakos A canonical model for a class of real spatial objects In D Abel and B C Ooi, editors, Advances in Spatial Databases: 3rd International

Ngày tải lên: 07/09/2020, 11:20

... be able to quickly and accurately access information and services available on the web A semantic web—a web where the meanings of terms are captured and exploited—can provide the foundation for ... convenient access to web content The DARPA Agent Markup Language (DAML) program is aimed at providing a language and toolset enabling the transformation of the web from a platform that focuses ... an ontology language for the web We introduce DAML-ONT by way of examples and include an axiomatization of the language Keywords: Ontology Language, Markup Language, Semantic Web, DAML, DARPA

Ngày tải lên: 18/10/2022, 23:06

... functions, variables, etc. Using an appropriate API abstraction level, applications can reuse standardized code and access or manipulate data in consistent ways. The Semantic Web: Crafting Infrastructure ... Provenance is the audit trail of knowing where data originate, and who owns them. Proxy (also see gateway), an entity acting on behalf of another, often a server acting as a local gateway from a LAN ... dynamic presentation that adapts on-the-fly to varying and unforeseen requirements by both producer and consumer of the raw data. MARC (MAchine-Readable Cataloging) project defines a data format which

Ngày tải lên: 14/08/2014, 09:22

... give a background in broad strokes on Web technology in general, and on the main issues that lead to the formulation of the Semantic Web A clear explanation of relevant terms and concepts ... concepts prepare the reader for the more technical material in the rest of the book There and Back Again sets the theme by suggesting that the chapter... walkabout in the technology ... people gain access to information; the Semantic Web will equally profoundly change the way machines access information This change will transform yet again our own roles as creators, consumers

Ngày tải lên: 14/08/2014, 09:22

... James Hendler, Ora Lassila 34 The Semantic Web A reformulated version appears later to guide the formal W3C ‘initiative’: The goal of the Semantic Web initiative... logical Web ... of these features are hard to describe adequately in the absence of the ‘back-end’ data and automation, and they will depend greatly on commercial, political, and social decisions along the way ... conceptual models for the Semantic Web, before delving further into detailed terms  The Semantic Web Concept section analyzes... in the tradition of applying Latin grammar), as an artificial

Ngày tải lên: 14/08/2014, 09:22

... the major functionality areas of the Semantic Web. Defining the Semantic Web 57 3 Web Information Management Part of the Semantic Web deals necessarily with strategies for information management ... Glance This chapter deals with the general issues aroun d a particular implementation area of the Semantic Web, that of creating and managing the content and metadata structures that form The Semantic ... distributed and cached model of availability based on what the data are rather than where they are.  Searching and Sifting the Data looks at the strategies for finding data and deriving useful compilations

Ngày tải lên: 14/08/2014, 09:22

... attract advertising revenue. In fact, for a brief period in the late 1990s, 98 The Semantic Web it almost appeared as if the Web was turning into a just another broadcast medium for the media corporations. ... allocation of finite resources and realize load balancing. Web Information Management 95 4 Semantic Web Collaboration and Agency From information management in principle, we move on to the actors ... The effort was later split more formally into two halves: the transforming language (XSLT) and the formatting vocabulary (XFO) The focus on transformation... structural markup in a more

Ngày tải lên: 14/08/2014, 09:22

... will define the relationships to be mapped from the available data in some database. The XML template is constructed as an abstract model of metadata, and it may also contain information about how ... process (at least in part) many different metadata vocabularies. Figure 5.7 A possible application loop using RDF XML templates to access and manage metadata from a database. This model is fairly ... representative of many metadata management implementations 134 The Semantic Web Extended RDF Layers As defined, RDF is both general and simple. The language at this point has in fact neither negation

Ngày tải lên: 14/08/2014, 09:22

... Metadata Initiative defines an important area in organizing metadata that is greatly influencing the large data producers and repositories, such as governments and libraries.  DARPA manages and ... Several OWL-based demo applications developed at the University of Maryland Balti- more County, such as Travel Agent Game (TAGA, see taga.umbc.edu, a multi-agent automatic trading platform for Agentcities) ... The. .. extensively for practical work Chapter 8 at a Glance This chapter looks at a some application areas of the Semantic Web where prototype tools are already implemented and available

Ngày tải lên: 14/08/2014, 09:22

... and experiment with ABC models visually Apart from the Java RTE runtime, the tool also assumes the JenaAPI relational-database back-end to manage the RDF data 218 The Semantic Web ... Instrumental in achieving a relative success in this area was the development of metadata standards, such as Dublin 214 The Semantic Web Core or MPEG-7. The former is a metadata framework for describing ... general, and the application of RDF structures and metadata management in particular, is that of digital libraries. In many respects, early digital library efforts to define metadata exchange paved

Ngày tải lên: 14/08/2014, 09:22

... in a web across the company In these cases, the information already exists in machine-readable but not semantic Web form; in databases or XML, but not in RDF The Semantic Web is about what happens ... what the Semantic Web is waiting for For most enterprise software folks, the Semantic Web is about data integration For example, getting information from the stock control available in the catalog, ... such as an always up-to-date CV available on demand  Instant messaging and IRC, perhaps as an adjunct to presence status; easy access to background personal information  Forums and interactive

Ngày tải lên: 14/08/2014, 09:22

... opposed, they will adapt, or fall The Case for the Semantic Web What are the arguments for the Semantic Web revolution? And why should we care? Knowledge Empowers The motivation ... colleagues and fans. Despite the lack of a purposely media-friendly infrastructure so far, digital artists have clearly thrived regardless. The basic technology of the Web allowed partial realization ... that may either encourage or discourage creativity, distribution, and the associated rewards. In particular, the ability to exchange ideas freely and access published material is central to their

Ngày tải lên: 14/08/2014, 09:22

... a language; it is actually a set of syntax rules for creating semantically rich markup languages in a particular domain In other words, you apply XML to create new languages Any language created ... of data values, or meta data An often-used definition of meta data is “data about data.” We discuss the details of the XML syntax later For now what is important is that XML standardizes a simple, ... Semantic Web 25 correlation, aggregation, and orchestration Academic research programs, such as TAP at Stanford, are bridging the gap between disparate Web servicebased data sources and “creating

Ngày tải lên: 14/08/2014, 12:20

... and the prefix is an abbreviation for the actual name- space in the namespace declaration. The actual namespace is a unique Uniform Resource Identifier (URI; see sidebar). Here is a sample namespace ... specific areas: Data exchange and interoperability. XML has become the universal syntax for exchanging data between organizations. By agreeing on a standard schema, organization can produce these ... servers on standard port 80). A URN creates a unique and persistent name for a resource either in the “urn” namespace or another registered namespace. A URN namespace dictates the syntax for the URN

Ngày tải lên: 14/08/2014, 12:20

... provides the capability to search for available cars on a certain date, lists rental rates, and allows an application to make a reservation for a car. Expense report creator. This Web service automatically ... does not have such a department, and you don’t have an administrative assistant who handles these details. In addition to all the work that you have to do, you need to make these travel arrangements ... legal proof that the signer cannot refute. A trusted third party can look at the message and validate that the message was indeed digitally signed by the sender. A digitally signed message can

Ngày tải lên: 14/08/2014, 12:20

... entities are the Publishing Requirements for Industry Standard Metadata (PRISM), available at http://www.prismstan- dard.org, and the Friend Of A Friend (FOAF) vocabulary, available at http://xmlns.com/foaf/0.1/. ... provides a standard way to query and filter RDF. The rules layer is sort of an “introductory logic” capability, while the logic framework will be “advanced logic.” The logic framework allows formal logic ... RDF Schema is the same data model used by object-oriented pro- gramming languages like Java. The data model for RDF Schema allows you to create classes of data. A class is defined as a group of

Ngày tải lên: 14/08/2014, 12:20

... user interaction is finished, the instance data is serialized as XML and sent to the server. Separating the data, the model, and the presenta- tion allows you to maximize reusability and can help ... styled, and trans- formed. Features such as alpha masks, filter effects, and nested transforma- tions are in this XML-based language, and animations can be defined and triggered. Many authors ... scripting languages that access the SVG’s Docu- ment Object Model to perform advanced animations and dynamic graphics. The potential for SVG is quite exciting. Because it is an XML language, data content

Ngày tải lên: 14/08/2014, 12:20

... discuss later) In addition to the base name, however, a variant name, specifically, a display name and/or a sort name, can be used In the example, a display name is represented, within the base name ... describing a language (actually a language and an entire modeling paradigm) that is often used to model Web objects and the things that can be said of Web objects, and that can structure that model ... and the kinds of schemas built for databases, refer to nearly any standard database text We like Halpin (1995) and Ullman (1989) Understanding Taxonomies 167 people, databases, and applications

Ngày tải lên: 14/08/2014, 12:20

... process. The semantics of interactions among AreaAgencyAging and HealthDepartment must be well defined, such that there is no ambiguity as to what a message may mean, what actions are al- lowed, what ... external manageability and adaptability. If the history clause is specified, all operation invocations are automatically logged. The on change clause uses triggers to detect changes in variables ... translation, transformation, and integration capabilities are needed to provide for reconciliation among disparate representations, vocabularies, and semantics. The objective of interactions at this layer...

Ngày tải lên: 28/03/2014, 21:20

... (2010) Mathematical model- ling of the central carbohydrate metabolism in Arabid- opsis thaliana reveals a substantial regulatory influence of vacuolar invertase on whole plant carbon metabo- lism. ... from photosynthetically active source organs to consuming sink organs or metabolic pathways other than carbo- hydrate pathways was calculated as the difference between net carbon uptake and changes ... 967–981. 8 Sasaki H, Ichimura K, Imada S & Yamaki S (2001) Sucrose synthase and sucrose phosphate synthase, but not acid invertase, are regulated by cold acclimation and deacclimation in cabbage...

Ngày tải lên: 14/02/2014, 22:20