Integrating Information Sources Using Context Logic

نویسندگان

  • Adam Farquhar
  • Angela Dappert
  • Richard Fikes
  • Wanda Pratt
چکیده

It is essential to reduce the cost of integrating information sources and to provide a path that allows for incremental integration that can be responsive to users' demands. This paper presents an approach to integrating disparate heterogeneous information sources that uses context logic. Our use of context logic reduces the up-front cost of integration, provides an incremental integration path, and allows semantic conflicts within a single information sources or between information sources to be expressed and resolved.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nonmonotonic Multi-Context Systems: A Flexible Approach for Integrating Heterogeneous Knowledge Sources

MCS provide a flexible, principled account of integrating heterogeneous knowledge sources, a task that is becoming more and more relevant. By a knowledge source we mean a knowledge base (KB) formulated in any of the typical knowledge representation languages, including classical logic, description logics, modal or temporal logics, but also nonmonotonic formalisms like logic programs under answe...

متن کامل

A Bilattice Based Fixed Point Semantics for Integrating Imperfect Information

We present an approach to reasoning non-uniformly by default with uncertain, incomplete and inconsistent information using sets of rules/extended logic programs in the context of logics with a bilattice structure. A fixed point semantics for extended logic programs used in the process of inference is described, along with its computational approach. We show how this theoretic approach is applic...

متن کامل

Data Mining , Validation , and Collaborative Knowledge Capture

For large-scale data mining, utilizing data from ubiquitous and mixed-structured data sources, the extraction and integration into a comprehensive data-warehouse is usually of prime importance. Then, appropriate methods for validation and potential refinement are essential. This chapter describes an approach for integrating data mining, information extraction, and validation with collaborative ...

متن کامل

Integration of Information in Four-Valued Logics under Non-Uniform Assumptions

We study the problem of integrating information coming from different sources in a distributed environment. We assume a central server that collects facts from sources and tries to combine them using a set of logical rules, i.e. a logic program. We provide a formal framework for the integration of information in such a setting, under non-uniform assumptions on the missing information.

متن کامل

A semantic-aware role-based access control model for pervasive computing environments

Access control in open and dynamic Pervasive Computing Environments (PCEs) is a very complex mechanism and encompasses various new requirements. In fact, in such environments, context information should be used in access control decision process; however, it is not applicable to gather all context information completely and accurately all the time. Thus, a suitable access control model for PCEs...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1995