Sinopsis
Excerpt from Context Interchange: A Lattice Based Approach
The level of semantic data interoperability between a source and a receiver is a function of the context interchange mechanism that operates between the source and the receiver. The semantic interoperability mechanisms in existing systems are usually static in nature and cannot cope up with changes in the semantics of data either at the source or at the receiver. In this paper, we propose a context interchange mechanism, based on lattice theory which can handle changes in the semantics of data at both the source and the receiver. A site-copy selection algorithm is also presented in this paper which selects the set of sources that can supply semantically meaningful data to the query of a particular source.
Keywords: semantic-interoperability, context-interchange, lattice theory.
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Reseña del editor
Excerpt from Context Interchange: A Lattice Based Approach
The level of semantic data interoperability between a source and a receiver is a function of the context interchange mechanism that operates between the source and the receiver. The semantic interoperability mechanisms in existing systems are usually static in nature and cannot cope up with changes in the semantics of data either at the source or at the receiver. In this paper, we propose a context interchange mechanism, based on lattice theory which can handle changes in the semantics of data at both the source and the receiver. A site-copy selection algorithm is also presented in this paper which selects the set of sources that can supply semantically meaningful data to the query of a particular source.
Keywords: semantic-interoperability, context-interchange, lattice theory.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Reseña del editor
Excerpt from Context Interchange: A Lattice Based Approach
What exactly constitutes the context is difficult to answer [lyo81]. The concept of context has been addressed in many areas such as sensory process, perception, language, concept learning, recall and recognition [bur52, Coe77, Tho88]. The main reason for the context assuming a central role in these areas is that objects and their associated events constitute an integral part of their environment and cannot be understood in isolation of that environment. In this paper we do not attempt to give precise definition for this term, even though this is part of our long term research objective. We assume that context knowledge of a data item is a triple given by the semantic knowledge of the data, the organization of the data, and the quality parameters of the data. In this paper, we concentrate only on the semantic component of the context, which is formally defined in Section 3.
Consider the process by which a financial analyst accesses the prices for shares of a particular company. He or she needs to gather information from several stock exchanges located in different nations and must overcome semantic discrepencies at multiple levels: the stock prices are stated in different currencies, the currencies are floating with respect to each other; the stock price may be the latest-price or the closing-price; etc. Such semantics are implicit in many existing databases. Unless these semantics are made explicit, it is difficult to identify and resolve underlying semantic incompatibilities. The fundamental question is how to make such semantics explicit and how to quickly identify the incompatibilities and resolve them if possible.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Paperback. Condición: New. Print on Demand. This book explores the concept of context interchange, where data from different sources with varying contexts must be translated to ensure semantic interoperability. The author proposes a lattice-based mechanism to represent context knowledge and identify semantic incompatibilities. This approach enables efficient cross-comparison, context mediation, and semantic conversion during data exchange. The book also introduces a context-driven site-copy selection algorithm that identifies candidate data sources for a given query, considering both semantic and optimization factors. By providing a systematic framework for context interchange, this book addresses a fundamental challenge in data integration and interoperability, making it a valuable resource for researchers and practitioners in the field. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9780243053551_0
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